Merge branch 'main' into custom-media-servers

merge main branch
2024-06-28 23:43:46 +01:00
parent 9a4d829f73 1fafb6a503
commit e7fec7caab
683 changed files with 2814 additions and 1768 deletions
@@ -0,0 +1 @@
+/build
@@ -0,0 +1,323 @@
+plugins {
+    alias(libs.plugins.androidApplication)
+    alias(libs.plugins.jetbrainsKotlinAndroid)
+    alias(libs.plugins.googleServices)
+}
+
+android {
+    namespace 'com.vitorpamplona.amethyst'
+    compileSdk 34
+
+    defaultConfig {
+        applicationId "com.vitorpamplona.amethyst"
+        minSdk 26
+        targetSdk 34
+        versionCode 382
+        versionName "0.88.5"
+        buildConfigField "String", "RELEASE_NOTES_ID", "\"2a34cbadd03212c8162e1ff896ba12641821088a2ec8d5e40d54aa80c0510800\""
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary true
+        }
+        resourceConfigurations += [
+            'ar',
+            'bn-rBD',
+            'cs',
+            'cy-rGB',
+            'da-rDK',
+            'de',
+            'el-rGR',
+            'en-rGB',
+            'eo',
+            'es',
+            'es-rES',
+            'es-rMX',
+            'es-rUS',
+            'et-rEE',
+            'fa',
+            'fi-rFI',
+            'fo-rFO',
+            'fr',
+            'fr-rCA',
+            'gu-rIN',
+            'hi-rIN',
+            'hr-rHR',
+            'hu',
+            'in',
+            'in-rID',
+            'it-rIT',
+            'iw-rIL',
+            'ja',
+            'kk-rKZ',
+            'ko-rKR',
+            'ks-rIN',
+            'ku-rTR',
+            'lt-rLT',
+            'ne-rNP',
+            'night',
+            'nl',
+            'nl-rBE',
+            'pcm-rNG',
+            'pl-rPL',
+            'pt-rBR',
+            'pt-rPT',
+            'ru',
+            'ru-rUA',
+            'sa-rIN',
+            'sl-rSI',
+            'so-rSO',
+            'sr-rSP',
+            'ss-rZA',
+            'sv-rSE',
+            'sw-rKE',
+            'sw-rTZ',
+            'ta',
+            'th',
+            'tr',
+            'uk',
+            'ur-rIN',
+            'uz-rUZ',
+            'vi-rVN',
+            'zh',
+            'zh-rCN',
+            'zh-rHK',
+            'zh-rSG',
+            'zh-rTW'
+        ]
+    }
+
+    buildTypes {
+        release {
+            proguardFiles getDefaultProguardFile("proguard-android-optimize.txt"), 'proguard-rules.pro'
+            minifyEnabled true
+            resValue "string", "app_name", "@string/app_name_release"
+        }
+        debug {
+            applicationIdSuffix '.debug'
+            versionNameSuffix '-DEBUG'
+            resValue "string", "app_name", "@string/app_name_debug"
+        }
+        create("benchmark") {
+            initWith(getByName("release"))
+            profileable true
+            signingConfig signingConfigs.debug
+        }
+    }
+
+    flavorDimensions = ["channel"]
+
+    productFlavors {
+        play {
+            getIsDefault().set(true)
+            dimension "channel"
+        }
+
+        fdroid {
+            dimension "channel"
+        }
+    }
+
+    splits {
+        abi {
+            enable true
+            reset()
+            include "x86", "x86_64", "arm64-v8a", "armeabi-v7a"
+            universalApk true
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = '17'
+    }
+
+    buildFeatures {
+        compose true
+        buildConfig true
+    }
+
+    composeOptions {
+        // Should match compose version : https://developer.android.com/jetpack/androidx/releases/compose-kotlin
+        kotlinCompilerExtensionVersion "1.5.14"
+    }
+    packagingOptions {
+        resources {
+            excludes += ['/META-INF/{AL2.0,LGPL2.1}', '**/libscrypt.dylib']
+        }
+    }
+
+    lint {
+        disable 'MissingTranslation'
+    }
+
+    testOptions {
+        unitTests.returnDefaultValues = true
+    }
+}
+
+dependencies {
+    implementation platform(libs.androidx.compose.bom)
+
+    implementation project(path: ':quartz')
+    implementation project(path: ':commons')
+    implementation project(path: ':ammolite')
+    implementation libs.androidx.core.ktx
+    implementation libs.androidx.activity.compose
+
+    implementation libs.androidx.ui
+    implementation libs.androidx.ui.graphics
+    implementation libs.androidx.ui.tooling.preview
+
+    // Needs this to open gallery / image upload
+    implementation libs.androidx.fragment.ktx
+
+    // Navigation
+    implementation libs.androidx.navigation.compose
+
+    // Observe Live data as State
+    implementation libs.androidx.runtime.livedata
+
+    // Material 3 Design
+    implementation libs.androidx.material3
+    implementation libs.androidx.material.icons
+
+    // Adaptive Layout / Two Pane
+    implementation libs.androidx.material3.windowSize
+    implementation libs.accompanist.adaptive
+
+    // Lifecycle
+    implementation libs.androidx.lifecycle.runtime.ktx
+    implementation libs.androidx.lifecycle.runtime.compose
+    implementation libs.androidx.lifecycle.viewmodel.compose
+    implementation libs.androidx.lifecycle.livedata.ktx
+
+    // Zoomable images
+    implementation libs.zoomable
+
+    // Biometrics
+    implementation libs.androidx.biometric.ktx
+
+    // Websockets API
+    implementation libs.okhttp
+
+    // Encrypted Key Storage
+    implementation libs.androidx.security.crypto.ktx
+
+    // view videos
+    implementation libs.androidx.media3.exoplayer
+    implementation libs.androidx.media3.exoplayer.hls
+    implementation libs.androidx.media3.ui
+    implementation libs.androidx.media3.session
+
+    // important for proxy / tor
+    implementation libs.androidx.media3.datasource.okhttp
+
+    // Load images from the web.
+    implementation libs.coil.compose
+    // view gifs
+    implementation libs.coil.gif
+    // view svgs
+    implementation libs.coil.svg
+
+    // create blurhash
+    implementation libs.trbl.blurhash
+
+    // Permission to upload pictures:
+    implementation libs.accompanist.permissions
+
+    // For QR generation
+    implementation libs.zxing
+    implementation libs.zxing.embedded
+
+    // Markdown
+    //implementation "com.halilibo.compose-richtext:richtext-ui:0.16.0"
+    //implementation "com.halilibo.compose-richtext:richtext-ui-material:0.16.0"
+    //implementation "com.halilibo.compose-richtext:richtext-commonmark:0.16.0"
+
+    // Markdown (With fix for full-image bleeds)
+    implementation libs.markdown.ui
+    implementation libs.markdown.ui.material3
+    implementation libs.markdown.commonmark
+
+    // Language picker and Theme chooser
+    implementation libs.androidx.appcompat
+
+    // Local model for language identification
+    playImplementation libs.google.mlkit.language.id
+
+    // Google services model the translate text
+    playImplementation libs.google.mlkit.translate
+
+    // PushNotifications
+    playImplementation platform(libs.firebase.bom)
+    playImplementation libs.firebase.messaging
+
+    //PushNotifications(FDroid)
+    fdroidImplementation libs.unifiedpush
+
+    // Charts
+    implementation libs.vico.charts.core
+    implementation libs.vico.charts.compose
+    implementation libs.vico.charts.views
+    implementation libs.vico.charts.m3
+
+    // GeoHash
+    implementation libs.drfonfon.geohash
+
+    // Waveform visualizer
+    implementation libs.audiowaveform
+
+    // Video compression lib
+    implementation libs.abedElazizShe.image.compressor
+    // Image compression lib
+    implementation libs.zelory.video.compressor
+
+    testImplementation libs.junit
+    testImplementation libs.mockk
+
+    androidTestImplementation platform(libs.androidx.compose.bom)
+    androidTestImplementation libs.androidx.junit
+    androidTestImplementation libs.androidx.junit.ktx
+    androidTestImplementation libs.androidx.espresso.core
+
+    debugImplementation platform(libs.androidx.compose.bom)
+    debugImplementation libs.androidx.ui.tooling
+    debugImplementation libs.androidx.ui.test.manifest
+}
+
+// https://gitlab.com/fdroid/wiki/-/wikis/HOWTO:-diff-&-fix-APKs-for-Reproducible-Builds#differing-assetsdexoptbaselineprofm-easy-to-fix
+// NB: Android Studio can't find the imports; this does not affect the
+// actual build since Gradle can find them just fine.
+import com.android.tools.profgen.ArtProfileKt
+import com.android.tools.profgen.ArtProfileSerializer
+import com.android.tools.profgen.DexFile
+
+project.afterEvaluate {
+    tasks.each { task ->
+        if (task.name.startsWith("compile") && task.name.endsWith("ReleaseArtProfile")) {
+            task.doLast {
+                outputs.files.each { file ->
+                    if (file.name.endsWith(".profm")) {
+                        println("Sorting ${file} ...")
+                        def version = ArtProfileSerializer.valueOf("METADATA_0_0_2")
+                        def profile = ArtProfileKt.ArtProfile(file)
+                        def keys = new ArrayList(profile.profileData.keySet())
+                        def sortedData = new LinkedHashMap()
+                        Collections.sort keys, new DexFile.Companion()
+                        keys.each { key -> sortedData[key] = profile.profileData[key] }
+                        new FileOutputStream(file).with {
+                            write(version.magicBytes$profgen)
+                            write(version.versionBytes$profgen)
+                            version.write$profgen(it, sortedData, "")
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
@@ -0,0 +1,68 @@
+{
+  "project_info": {
+    "project_number": "768341258853",
+    "project_id": "amethyst-3057a",
+    "storage_bucket": "amethyst-3057a.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:768341258853:android:5d07c35a37b24ff36b8c8c",
+        "android_client_info": {
+          "package_name": "com.vitorpamplona.amethyst"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "768341258853-6um8ig59qstvio60gfo60fe5e45lnqqe.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyB7ZxgdpgrN6R223HCFdfv4ulP8Egp7trE"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "768341258853-6um8ig59qstvio60gfo60fe5e45lnqqe.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:768341258853:android:e0200680f552484d6b8c8c",
+        "android_client_info": {
+          "package_name": "com.vitorpamplona.amethyst.debug"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "768341258853-6um8ig59qstvio60gfo60fe5e45lnqqe.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyB7ZxgdpgrN6R223HCFdfv4ulP8Egp7trE"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "768341258853-6um8ig59qstvio60gfo60fe5e45lnqqe.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}
@@ -0,0 +1,67 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# preserve the line number information for debugging stack traces.
+-dontobfuscate
+-keepattributes LocalVariableTable
+-keepattributes LocalVariableTypeTable
+-keepattributes *Annotation*
+-keepattributes SourceFile
+-keepattributes LineNumberTable
+-keepattributes Signature
+-keepattributes Exceptions
+-keepattributes InnerClasses
+-keepattributes EnclosingMethod
+-keepattributes MethodParameters
+-keepparameternames
+
+-keepdirectories libs
+
+# Keep all names
+-keepnames class ** { *; }
+
+# Keep All enums
+-keep enum ** { *; }
+
+# preserve access to native classses
+-keep class fr.acinq.secp256k1.** { *; }
+
+# JNA For Libsodium
+-keep class com.goterl.lazysodium.** { *; }
+
+# libscrypt
+-keep class com.lambdaworks.codec.** { *; }
+-keep class com.lambdaworks.crypto.** { *; }
+-keep class com.lambdaworks.jni.** { *; }
+
+# JNA also requires AWT, which Android does not have. So the classes are broken down to filter AWT out
+-keep class com.sun.jna.ToNativeConverter { *; }
+-keep class com.sun.jna.NativeMapped { *; }
+-keep class com.sun.jna.CallbackReference { *; }
+-keep class com.sun.jna.ptr.IntByReference { *; }
+-keep class com.sun.jna.NativeLong { *; }
+-keep class com.sun.jna.Structure { *; }
+-keep class com.sun.jna.Structure$* { *; }
+-keep class com.sun.jna.Native$ffi_callback { *; }
+-keep class * implements com.sun.jna.Structure$* { *; }
+-keep class * implements com.sun.jna.Native$* { *; }
+-keep class com.sun.jna.Native {
+    private static com.sun.jna.NativeMapped fromNative(java.lang.Class, java.lang.Object);
+    private static com.sun.jna.NativeMapped fromNative(java.lang.reflect.Method, java.lang.Object);
+    private static java.lang.Class nativeType(java.lang.Class);
+    private static java.lang.Object toNative(com.sun.jna.ToNativeConverter, java.lang.Object);
+    private static java.lang.Object fromNative(com.sun.jna.FromNativeConverter, java.lang.Object, java.lang.reflect.Method);
+}
+
+# JSON parsing
+-keep class com.vitorpamplona.quartz.crypto.** { *; }
+-keep class com.vitorpamplona.quartz.encoders.** { *; }
+-keep class com.vitorpamplona.quartz.events.** { *; }
+-keep class com.vitorpamplona.amethyst.model.** { *; }
+-keep class com.vitorpamplona.amethyst.service.** { *; }
+-keep class com.vitorpamplona.ammolite.service.** { *; }
+-keep class com.vitorpamplona.ammolite.relays.** { *; }
@@ -0,0 +1,175 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import android.graphics.Bitmap
+import android.graphics.Color
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.service.FileHeader
+import com.vitorpamplona.amethyst.service.Nip96MediaServers
+import com.vitorpamplona.amethyst.service.Nip96Retriever
+import com.vitorpamplona.amethyst.service.Nip96Uploader
+import com.vitorpamplona.amethyst.ui.actions.ImageDownloader
+import com.vitorpamplona.quartz.crypto.KeyPair
+import junit.framework.TestCase.assertEquals
+import junit.framework.TestCase.fail
+import kotlinx.coroutines.runBlocking
+import org.junit.Assert
+import org.junit.Ignore
+import org.junit.Test
+import org.junit.runner.RunWith
+import java.io.ByteArrayOutputStream
+import kotlin.random.Random
+
+@RunWith(AndroidJUnit4::class)
+class ImageUploadTesting {
+    private suspend fun testBase(server: Nip96MediaServers.ServerName) {
+        val serverInfo =
+            Nip96Retriever()
+                .loadInfo(
+                    server.baseUrl,
+                )
+
+        val bitmap = Bitmap.createBitmap(200, 300, Bitmap.Config.ARGB_8888)
+        for (x in 0 until bitmap.width) {
+            for (y in 0 until bitmap.height) {
+                bitmap.setPixel(x, y, Color.rgb(Random.nextInt(), Random.nextInt(), Random.nextInt()))
+            }
+        }
+        val baos = ByteArrayOutputStream()
+        bitmap.compress(Bitmap.CompressFormat.PNG, 100, baos)
+        val bytes = baos.toByteArray()
+        val inputStream = bytes.inputStream()
+
+        val account = Account(KeyPair())
+
+        val result =
+            Nip96Uploader(account)
+                .uploadImage(
+                    inputStream,
+                    bytes.size.toLong(),
+                    "image/png",
+                    alt = null,
+                    sensitiveContent = null,
+                    serverInfo,
+                    onProgress = {},
+                )
+
+        val url = result.tags!!.first { it[0] == "url" }.get(1)
+        val size = result.tags!!.firstOrNull { it[0] == "size" }?.get(1)?.ifBlank { null }
+        val dim = result.tags!!.firstOrNull { it[0] == "dim" }?.get(1)?.ifBlank { null }
+        val hash = result.tags!!.firstOrNull { it[0] == "x" }?.get(1)?.ifBlank { null }
+        val contentType = result.tags!!.first { it[0] == "m" }.get(1)
+        val ox = result.tags!!.first { it[0] == "ox" }.get(1)
+
+        Assert.assertTrue("${server.name}: Invalid result url", url.startsWith("http"))
+
+        val imageData: ByteArray =
+            ImageDownloader().waitAndGetImage(url)
+                ?: run {
+                    fail("${server.name}: Should not be null")
+                    return
+                }
+
+        FileHeader.prepare(
+            imageData,
+            "image/png",
+            null,
+            onReady = {
+                if (dim != null) {
+                    // assertEquals("${server.name}: Invalid dimensions", it.dim, dim)
+                }
+                if (size != null) {
+                    // assertEquals("${server.name}: Invalid size", it.size.toString(), size)
+                }
+                if (hash != null) {
+                    assertEquals("${server.name}: Invalid hash", it.hash, hash)
+                }
+            },
+            onError = { fail("${server.name}: It should not fail") },
+        )
+
+        // delay(1000)
+
+        // assertTrue(Nip96Uploader(account).delete(ox, contentType, serverInfo))
+    }
+
+    @Test
+    fun runTestOnDefaultServers() =
+        runBlocking {
+            Nip96MediaServers.DEFAULT.forEach {
+                testBase(it)
+            }
+        }
+
+    @Test()
+    fun testNostrCheck() =
+        runBlocking {
+            testBase(Nip96MediaServers.ServerName("nostrcheck.me", "https://nostrcheck.me"))
+        }
+
+    @Test()
+    @Ignore("Not Working anymore")
+    fun testNostrage() =
+        runBlocking {
+            testBase(Nip96MediaServers.ServerName("nostrage", "https://nostrage.com"))
+        }
+
+    @Test()
+    @Ignore("Not Working anymore")
+    fun testSove() =
+        runBlocking {
+            testBase(Nip96MediaServers.ServerName("sove", "https://sove.rent"))
+        }
+
+    @Test()
+    fun testNostrBuild() =
+        runBlocking {
+            testBase(Nip96MediaServers.ServerName("nostr.build", "https://nostr.build"))
+        }
+
+    @Test()
+    @Ignore("Not Working anymore")
+    fun testSovbit() =
+        runBlocking {
+            testBase(Nip96MediaServers.ServerName("sovbit", "https://files.sovbit.host"))
+        }
+
+    @Test()
+    fun testVoidCat() =
+        runBlocking {
+            testBase(Nip96MediaServers.ServerName("void.cat", "https://void.cat"))
+        }
+
+    @Test()
+    fun testNostrPic() =
+        runBlocking {
+            testBase(Nip96MediaServers.ServerName("nostpic.com", "https://nostpic.com"))
+        }
+
+    @Test()
+    @Ignore("Not Working anymore")
+    fun testNostrOnch() =
+        runBlocking {
+            testBase(Nip96MediaServers.ServerName("nostr.onch.services", "https://nostr.onch.services"))
+        }
+}
@@ -0,0 +1,95 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.vitorpamplona.amethyst.service.ots.OkHttpBlockstreamExplorer
+import com.vitorpamplona.amethyst.service.ots.OkHttpCalendarBuilder
+import com.vitorpamplona.quartz.crypto.KeyPair
+import com.vitorpamplona.quartz.events.Event
+import com.vitorpamplona.quartz.events.OtsEvent
+import com.vitorpamplona.quartz.ots.OpenTimestamps
+import com.vitorpamplona.quartz.signers.NostrSignerInternal
+import junit.framework.TestCase.assertEquals
+import org.junit.Assert
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import java.util.concurrent.CountDownLatch
+import java.util.concurrent.TimeUnit
+
+@RunWith(AndroidJUnit4::class)
+class OkHttpOtsTest {
+    val otsEvent = "{\"content\":\"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\",\"created_at\":1707690688,\"id\":\"759f9da5846e936fab06766a524b36ba71c03bbc69ad0944fb8ee4bb1f3dd705\",\"kind\":1040,\"pubkey\":\"82fbb08c8ef45c4d71c88368d0ae805bc62fb92f166ab04a0b7a0c83d8cbc29a\",\"sig\":\"07c7896c8cbb97b5d7483097590c9d31b73f35c1ad9e752002bb5c1776cbd852e1d32704333d6930c9bc3e40f8b899a1f2e9f91cc3bf797d86acdecba7792576\",\"tags\":[[\"e\",\"a828a25b4165b14f65a8ae5fd40f9c2fa086275021e15fc0d7234963fb2d504d\"],[\"p\",\"595ca8eaace5899cb6ab7e2542bfc972136376f2eabc09287f1857eb8f167e53\"],[\"alt\",\"NIP-03 time stamp\"]]}"
+    val otsEvent2 = "{\"content\":\"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\",\"created_at\":1706324334,\"id\":\"2ad074ddb7724eb13b4244b49cf2321b1057f37fdf8ce102e6329b839cf763a9\",\"kind\":1040,\"pubkey\":\"82fbb08c8ef45c4d71c88368d0ae805bc62fb92f166ab04a0b7a0c83d8cbc29a\",\"sig\":\"ad7274bb32ba9e9cfdbd52f4887e8a2fda1047c75a7185b2ab7ff254ebac14ed48a2b60737494d655e24c9400eeeec7e29293a77bfcaafaecd94b350c9a2c22b\",\"tags\":[[\"e\",\"a8634f5368e17789e8fb3836cad0e4b9fe4f2288afafc28723c04bebc68a18d6\"],[\"p\",\"c31e22c3715c1bde5608b7e0d04904f22f5fc453ba1806d21c9f2382e1e58c6c\"],[\"alt\",\"NIP-03 time stamp\"]]}"
+    val otsPendingEvent = "{\"id\":\"12fa15ad4b4cf9dc5940389325b69b93c5c1f59c049c701ee669b275299fdaf1\",\"pubkey\":\"dcaa6c8a2f47b6fef4a34b20e8843c59dbe7c5f07a402338c09fd147dd01d22b\",\"created_at\":1708877521,\"kind\":1040,\"tags\":[[\"e\",\"a8634f5368e17789e8fb3836cad0e4b9fe4f2288afafc28723c04bebc68a18d6\"],[\"alt\",\"Opentimestamps Attestation\"]],\"content\":\"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\",\"sig\":\"f6854c0228c15c08aeb70bbabe9ed87bbb7289fab31b13cabac15138bb71179553e06080b83f4a813fbdaf614f63293beea3fc73fe865da6551193fa4d38de04\"}"
+
+    val otsEvent2Digest = "a8634f5368e17789e8fb3836cad0e4b9fe4f2288afafc28723c04bebc68a18d6"
+
+    @Before
+    fun setup() {
+        OtsEvent.otsInstance = OpenTimestamps(OkHttpBlockstreamExplorer(), OkHttpCalendarBuilder())
+    }
+
+    @Test
+    fun verifyNostrEvent() {
+        val ots = Event.fromJson(otsEvent) as OtsEvent
+        println(ots.info())
+        assertEquals(1707688818L, ots.verify())
+    }
+
+    @Test
+    fun verifyNostrEvent2() {
+        val ots = Event.fromJson(otsEvent2) as OtsEvent
+        println(ots.info())
+        assertEquals(1706322179L, ots.verify())
+    }
+
+    @Test
+    fun verifyNostrPendingEvent() {
+        val ots = Event.fromJson(otsPendingEvent) as OtsEvent
+        println(ots.info())
+        assertEquals(null, ots.verify())
+    }
+
+    @Test
+    fun createOTSEventAndVerify() {
+        val signer = NostrSignerInternal(KeyPair())
+        var ots: OtsEvent? = null
+
+        val countDownLatch = CountDownLatch(1)
+
+        val otsFile = OtsEvent.stamp(otsEvent2Digest)
+
+        OtsEvent.create(otsEvent2Digest, otsFile, signer) {
+            ots = it
+            countDownLatch.countDown()
+        }
+
+        Assert.assertTrue(countDownLatch.await(1, TimeUnit.SECONDS))
+
+        println(ots!!.toJson())
+        println(ots!!.info())
+
+        // Should not be valid because we need to wait for confirmations
+        assertEquals(null, ots!!.verify())
+    }
+}
@@ -0,0 +1,262 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.text.input.TransformedText
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.ui.actions.buildAnnotatedStringWithUrlHighlighting
+import com.vitorpamplona.quartz.encoders.decodePublicKey
+import com.vitorpamplona.quartz.encoders.toHexKey
+import com.vitorpamplona.quartz.events.UserMetadata
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class UrlUserTagTransformationTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.vitorpamplona.amethyst", appContext.packageName.removeSuffix(".debug"))
+    }
+
+    fun debugCursor(
+        original: String,
+        transformedText: TransformedText,
+        offset: Int,
+    ): String {
+        val offsetTransformed = transformedText.offsetMapping.originalToTransformed(offset)
+        val originalWithCursor = original.substring(0, offset) + "|" + original.substring(offset, original.length)
+        val transformedWithCursor = transformedText.text.text.substring(0, offsetTransformed) + "|" + transformedText.text.text.substring(offsetTransformed, transformedText.text.text.length)
+        return "$originalWithCursor $transformedWithCursor"
+    }
+
+    fun debugCursorReverse(
+        original: String,
+        transformedText: TransformedText,
+        offsetTransformed: Int,
+    ): String {
+        val offset = transformedText.offsetMapping.transformedToOriginal(offsetTransformed)
+        val originalWithCursor = original.substring(0, offset) + "|" + original.substring(offset, original.length)
+        val transformedWithCursor = transformedText.text.text.substring(0, offsetTransformed) + "|" + transformedText.text.text.substring(offsetTransformed, transformedText.text.text.length)
+        return "$originalWithCursor $transformedWithCursor"
+    }
+
+    @Test
+    fun testKeepTransformedIndexFullyInsideTransformedText() {
+        val user =
+            LocalCache.getOrCreateUser(
+                decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z")
+                    .toHexKey(),
+            )
+        user.info = UserMetadata()
+        user.info?.displayName = "Vitor Pamplona"
+
+        val original = "@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z"
+
+        val transformedText =
+            buildAnnotatedStringWithUrlHighlighting(
+                AnnotatedString(original),
+                Color.Red,
+            )
+
+        val expected = "@Vitor Pamplona"
+        assertEquals(expected, transformedText.text.text)
+
+        assertEquals("|@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z |@Vitor Pamplona", debugCursor(original, transformedText, 0))
+        assertEquals("@|npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z |@Vitor Pamplona", debugCursor(original, transformedText, 1))
+        assertEquals("@n|pub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z |@Vitor Pamplona", debugCursor(original, transformedText, 2))
+        assertEquals("@np|ub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z |@Vitor Pamplona", debugCursor(original, transformedText, 3))
+        assertEquals("@npu|b1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z |@Vitor Pamplona", debugCursor(original, transformedText, 4))
+        assertEquals("@npub|1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @|Vitor Pamplona", debugCursor(original, transformedText, 5))
+        assertEquals("@npub1|gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @|Vitor Pamplona", debugCursor(original, transformedText, 6))
+        assertEquals("@npub1g|cxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @|Vitor Pamplona", debugCursor(original, transformedText, 7))
+        assertEquals("@npub1gc|xzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @|Vitor Pamplona", debugCursor(original, transformedText, 8))
+        assertEquals("@npub1gcx|zte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @V|itor Pamplona", debugCursor(original, transformedText, 9))
+        assertEquals("@npub1gcxz|te5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @V|itor Pamplona", debugCursor(original, transformedText, 10))
+        assertEquals("@npub1gcxzt|e5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @V|itor Pamplona", debugCursor(original, transformedText, 11))
+        assertEquals("@npub1gcxzte|5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @V|itor Pamplona", debugCursor(original, transformedText, 12))
+        assertEquals("@npub1gcxzte5|zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vi|tor Pamplona", debugCursor(original, transformedText, 13))
+        assertEquals("@npub1gcxzte5z|lkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vi|tor Pamplona", debugCursor(original, transformedText, 14))
+        assertEquals("@npub1gcxzte5zl|kncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vi|tor Pamplona", debugCursor(original, transformedText, 15))
+        assertEquals("@npub1gcxzte5zlk|ncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vi|tor Pamplona", debugCursor(original, transformedText, 16))
+        assertEquals("@npub1gcxzte5zlkn|cx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vi|tor Pamplona", debugCursor(original, transformedText, 17))
+        assertEquals("@npub1gcxzte5zlknc|x26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vit|or Pamplona", debugCursor(original, transformedText, 18))
+        assertEquals("@npub1gcxzte5zlkncx|26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vit|or Pamplona", debugCursor(original, transformedText, 19))
+        assertEquals("@npub1gcxzte5zlkncx2|6j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vit|or Pamplona", debugCursor(original, transformedText, 20))
+        assertEquals("@npub1gcxzte5zlkncx26|j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vit|or Pamplona", debugCursor(original, transformedText, 21))
+        assertEquals("@npub1gcxzte5zlkncx26j|68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vito|r Pamplona", debugCursor(original, transformedText, 22))
+        assertEquals("@npub1gcxzte5zlkncx26j6|8ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vito|r Pamplona", debugCursor(original, transformedText, 23))
+        assertEquals("@npub1gcxzte5zlkncx26j68|ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vito|r Pamplona", debugCursor(original, transformedText, 24))
+        assertEquals("@npub1gcxzte5zlkncx26j68e|z60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vito|r Pamplona", debugCursor(original, transformedText, 25))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez|60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor| Pamplona", debugCursor(original, transformedText, 26))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez6|0fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor| Pamplona", debugCursor(original, transformedText, 27))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60|fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor| Pamplona", debugCursor(original, transformedText, 28))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60f|zkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor| Pamplona", debugCursor(original, transformedText, 29))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fz|kvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor |Pamplona", debugCursor(original, transformedText, 30))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzk|vtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor |Pamplona", debugCursor(original, transformedText, 31))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkv|tkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor |Pamplona", debugCursor(original, transformedText, 32))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvt|km9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor |Pamplona", debugCursor(original, transformedText, 33))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtk|m9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor |Pamplona", debugCursor(original, transformedText, 34))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm|9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor P|amplona", debugCursor(original, transformedText, 35))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9|e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor P|amplona", debugCursor(original, transformedText, 36))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e|0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor P|amplona", debugCursor(original, transformedText, 37))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0|vrwdcvsjakxf9mu9qewqlfnj5z @Vitor P|amplona", debugCursor(original, transformedText, 38))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0v|rwdcvsjakxf9mu9qewqlfnj5z @Vitor Pa|mplona", debugCursor(original, transformedText, 39))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vr|wdcvsjakxf9mu9qewqlfnj5z @Vitor Pa|mplona", debugCursor(original, transformedText, 40))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrw|dcvsjakxf9mu9qewqlfnj5z @Vitor Pa|mplona", debugCursor(original, transformedText, 41))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwd|cvsjakxf9mu9qewqlfnj5z @Vitor Pa|mplona", debugCursor(original, transformedText, 42))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdc|vsjakxf9mu9qewqlfnj5z @Vitor Pam|plona", debugCursor(original, transformedText, 43))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcv|sjakxf9mu9qewqlfnj5z @Vitor Pam|plona", debugCursor(original, transformedText, 44))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvs|jakxf9mu9qewqlfnj5z @Vitor Pam|plona", debugCursor(original, transformedText, 45))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsj|akxf9mu9qewqlfnj5z @Vitor Pam|plona", debugCursor(original, transformedText, 46))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsja|kxf9mu9qewqlfnj5z @Vitor Pamp|lona", debugCursor(original, transformedText, 47))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjak|xf9mu9qewqlfnj5z @Vitor Pamp|lona", debugCursor(original, transformedText, 48))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakx|f9mu9qewqlfnj5z @Vitor Pamp|lona", debugCursor(original, transformedText, 49))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf|9mu9qewqlfnj5z @Vitor Pamp|lona", debugCursor(original, transformedText, 50))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9|mu9qewqlfnj5z @Vitor Pamp|lona", debugCursor(original, transformedText, 51))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9m|u9qewqlfnj5z @Vitor Pampl|ona", debugCursor(original, transformedText, 52))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu|9qewqlfnj5z @Vitor Pampl|ona", debugCursor(original, transformedText, 53))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9|qewqlfnj5z @Vitor Pampl|ona", debugCursor(original, transformedText, 54))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9q|ewqlfnj5z @Vitor Pampl|ona", debugCursor(original, transformedText, 55))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qe|wqlfnj5z @Vitor Pamplo|na", debugCursor(original, transformedText, 56))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qew|qlfnj5z @Vitor Pamplo|na", debugCursor(original, transformedText, 57))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewq|lfnj5z @Vitor Pamplo|na", debugCursor(original, transformedText, 58))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewql|fnj5z @Vitor Pamplo|na", debugCursor(original, transformedText, 59))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlf|nj5z @Vitor Pamplon|a", debugCursor(original, transformedText, 60))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfn|j5z @Vitor Pamplon|a", debugCursor(original, transformedText, 61))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj|5z @Vitor Pamplon|a", debugCursor(original, transformedText, 62))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5|z @Vitor Pamplon|a", debugCursor(original, transformedText, 63))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z| @Vitor Pamplona|", debugCursor(original, transformedText, 64))
+
+        assertEquals("|@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z |@Vitor Pamplona", debugCursorReverse(original, transformedText, 0))
+        assertEquals("@npu|b1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @|Vitor Pamplona", debugCursorReverse(original, transformedText, 1))
+        assertEquals("@npub1gc|xzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @V|itor Pamplona", debugCursorReverse(original, transformedText, 2))
+        assertEquals("@npub1gcxzte|5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vi|tor Pamplona", debugCursorReverse(original, transformedText, 3))
+        assertEquals("@npub1gcxzte5zlkn|cx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vit|or Pamplona", debugCursorReverse(original, transformedText, 4))
+        assertEquals("@npub1gcxzte5zlkncx26|j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vito|r Pamplona", debugCursorReverse(original, transformedText, 5))
+        assertEquals("@npub1gcxzte5zlkncx26j68e|z60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor| Pamplona", debugCursorReverse(original, transformedText, 6))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60f|zkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor |Pamplona", debugCursorReverse(original, transformedText, 7))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtk|m9e0vrwdcvsjakxf9mu9qewqlfnj5z @Vitor P|amplona", debugCursorReverse(original, transformedText, 8))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0|vrwdcvsjakxf9mu9qewqlfnj5z @Vitor Pa|mplona", debugCursorReverse(original, transformedText, 9))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwd|cvsjakxf9mu9qewqlfnj5z @Vitor Pam|plona", debugCursorReverse(original, transformedText, 10))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsj|akxf9mu9qewqlfnj5z @Vitor Pamp|lona", debugCursorReverse(original, transformedText, 11))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9|mu9qewqlfnj5z @Vitor Pampl|ona", debugCursorReverse(original, transformedText, 12))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9q|ewqlfnj5z @Vitor Pamplo|na", debugCursorReverse(original, transformedText, 13))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewql|fnj5z @Vitor Pamplon|a", debugCursorReverse(original, transformedText, 14))
+        assertEquals("@npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z| @Vitor Pamplona|", debugCursorReverse(original, transformedText, 15))
+
+        assertEquals(0, transformedText.offsetMapping.originalToTransformed(0))
+        assertEquals(15, transformedText.offsetMapping.originalToTransformed(64))
+    }
+
+    @Test
+    fun transformationText() {
+        val user =
+            LocalCache.getOrCreateUser(
+                decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z")
+                    .toHexKey(),
+            )
+        user.info = UserMetadata()
+        user.info?.displayName = "Vitor Pamplona"
+
+        val transformedText =
+            buildAnnotatedStringWithUrlHighlighting(
+                AnnotatedString("New Hey @npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z"),
+                Color.Red,
+            )
+
+        assertEquals("New Hey @Vitor Pamplona", transformedText.text.text)
+
+        assertEquals(0, transformedText.offsetMapping.originalToTransformed(0)) // Before N
+        assertEquals(4, transformedText.offsetMapping.originalToTransformed(4)) // Before H
+        assertEquals(8, transformedText.offsetMapping.originalToTransformed(8)) // Before @
+        assertEquals(8, transformedText.offsetMapping.originalToTransformed(9)) // Before n
+        assertEquals(8, transformedText.offsetMapping.originalToTransformed(10)) // Before p
+        assertEquals(8, transformedText.offsetMapping.originalToTransformed(11)) // Before u
+        assertEquals(8, transformedText.offsetMapping.originalToTransformed(12)) // Before b
+        assertEquals(9, transformedText.offsetMapping.originalToTransformed(13)) // Before 1
+
+        assertEquals(22, transformedText.offsetMapping.originalToTransformed(71))
+        assertEquals(23, transformedText.offsetMapping.originalToTransformed(72))
+
+        assertEquals(0, transformedText.offsetMapping.transformedToOriginal(0))
+        assertEquals(4, transformedText.offsetMapping.transformedToOriginal(4))
+        assertEquals(8, transformedText.offsetMapping.transformedToOriginal(8))
+        assertEquals(12, transformedText.offsetMapping.transformedToOriginal(9))
+
+        assertEquals(72, transformedText.offsetMapping.transformedToOriginal(23))
+        assertEquals(73, transformedText.offsetMapping.transformedToOriginal(24))
+    }
+
+    @Test
+    fun transformationTextTwoKeys() {
+        val user =
+            LocalCache.getOrCreateUser(
+                decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z")
+                    .toHexKey(),
+            )
+        user.info = UserMetadata()
+        user.info?.displayName = "Vitor Pamplona"
+
+        val transformedText =
+            buildAnnotatedStringWithUrlHighlighting(
+                AnnotatedString(
+                    "New Hey @npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z and @npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z",
+                ),
+                Color.Red,
+            )
+
+        assertEquals("New Hey @Vitor Pamplona and @Vitor Pamplona", transformedText.text.text)
+
+        assertEquals(8, transformedText.offsetMapping.originalToTransformed(11))
+        assertEquals(8, transformedText.offsetMapping.originalToTransformed(12))
+        assertEquals(9, transformedText.offsetMapping.originalToTransformed(13))
+
+        assertEquals(22, transformedText.offsetMapping.originalToTransformed(70)) // Before 5
+        assertEquals(22, transformedText.offsetMapping.originalToTransformed(71)) // Before z
+        assertEquals(23, transformedText.offsetMapping.originalToTransformed(72)) // Before <space>
+        assertEquals(24, transformedText.offsetMapping.originalToTransformed(73)) // Before a
+        assertEquals(25, transformedText.offsetMapping.originalToTransformed(74)) // Before n
+        assertEquals(26, transformedText.offsetMapping.originalToTransformed(75)) // Before d
+        assertEquals(27, transformedText.offsetMapping.originalToTransformed(76)) // Before <space>
+        assertEquals(28, transformedText.offsetMapping.originalToTransformed(77)) // Before @
+        assertEquals(28, transformedText.offsetMapping.originalToTransformed(78)) // Before n
+
+        assertEquals(67, transformedText.offsetMapping.transformedToOriginal(22)) // Before a
+        assertEquals(72, transformedText.offsetMapping.transformedToOriginal(23)) // Before <space>
+        assertEquals(73, transformedText.offsetMapping.transformedToOriginal(24)) // Before a
+        assertEquals(74, transformedText.offsetMapping.transformedToOriginal(25)) // Before n
+        assertEquals(75, transformedText.offsetMapping.transformedToOriginal(26)) // Before d
+        assertEquals(76, transformedText.offsetMapping.transformedToOriginal(27)) // Before <space>
+        assertEquals(77, transformedText.offsetMapping.transformedToOriginal(28)) // Before @
+    }
+}
@@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name_release">Amethyst</string>
+    <string name="app_name_debug">Amethyst Debug</string>
+</resources>
@@ -0,0 +1,165 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.google.android.gms.tasks.Tasks
+import com.vitorpamplona.amethyst.service.lang.LanguageTranslatorService
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class TranslationsTest {
+    fun translateTo(
+        text: String,
+        translateTo: String,
+    ): String? {
+        val task = LanguageTranslatorService.autoTranslate(text, emptySet(), translateTo)
+        return Tasks.await(task).result
+    }
+
+    fun assertTranslate(
+        expected: String,
+        input: String,
+        translateTo: String,
+    ) {
+        assertEquals(null, expected, translateTo(input, translateTo))
+    }
+
+    fun assertTranslateContains(
+        expected: String,
+        input: String,
+        translateTo: String,
+    ) {
+        val translated = translateTo(input, translateTo)!!
+        assertTrue("'$translated' does not contain '$expected'", translated.contains(expected))
+    }
+
+    @Test
+    fun testTranslation() {
+        assertTranslate("Olá mundo", "Hello World", "pt")
+    }
+
+    @Test
+    fun testTranslationName() {
+        assertTranslate("Olá Vitor, como você está?", "Hello Vitor, how are you doing?", "pt")
+    }
+
+    @Test
+    fun testTranslationTag() {
+        assertTranslate("Você já viu isso, #[0]", "Have you seen this, #[0]", "pt")
+    }
+
+    @Test
+    fun testTranslationUrl() {
+        assertTranslateContains("https://t.me/mygroup", "Have you seen this https://t.me/mygroup", "pt")
+        assertTranslateContains("http://bananas.com", "Have you seen this http://bananas.com", "pt")
+        assertTranslateContains(
+            "http://bananas.com/myimage.jpg",
+            "Have you seen this http://bananas.com/myimage.jpg",
+            "pt",
+        )
+        assertTranslateContains(
+            "http://bananas.com?search=true&image=myimage.jpg",
+            "Have you seen this http://bananas.com?search=true&image=myimage.jpg",
+            "pt",
+        )
+        assertTranslate("https://i.imgur.com/EZ3QPsw.jpg", "https://i.imgur.com/EZ3QPsw.jpg", "pt")
+        assertTranslate("https://HaveYouSeenThis.com", "https://HaveYouSeenThis.com", "pt")
+        assertTranslate("https://haveyouseenthis.com", "https://haveyouseenthis.com", "pt")
+        assertTranslate(
+            "https://i.imgur.com/asdEZ3QPsw.jpg",
+            "https://i.imgur.com/asdEZ3QPsw.jpg",
+            "pt",
+        )
+        assertTranslateContains(
+            "https://i.imgur.com/asdEZ3QPswadfj2389rioasdjf9834riofaj9834aKLL.jpg",
+            "Hi there! \n How are you doing? \n https://i.imgur.com/asdEZ3QPswadfj2389rioasdjf9834riofaj9834aKLL.jpg",
+            "pt",
+        )
+    }
+
+    @Test
+    fun testChineseWithUrlDetector() {
+        assertTranslate(
+            "I entered your home page is very carton, perhaps your attention or other data is too much, and the homepage of others is not so carton. From aMethyst client",
+            "我进入你的主页很卡顿，也许是你的关注人数或者其他数据太多了，其他人主页没有这么卡顿。来自amethyst客户端",
+            "en",
+        )
+    }
+
+    @Test
+    fun testTranslationEmail() {
+        assertTranslateContains(
+            "vitor@amethyst.social",
+            "Have you seen this vitor@amethyst.social",
+            "pt",
+        )
+    }
+
+    @Test
+    fun testTranslationLnInvoice() {
+        assertTranslateContains(
+            "lnbc12u1p3lvjeupp5a5ecgp45k6pa8tu7rnkgzfuwdy3l5ylv3k5tdzrg4cr8rj2f364sdq5g9kxy7fqd9h8vmmfvdjscqzpgxqyz5vqsp5zuzyetf33aphetf0e80w7tztw6dfsjs4lmvya4cyk8umfsx00qts9qyyssqke9hphcr36zvcav8wr502g0mhfhxpy8m9tt36zttg8vldm2qxw039ulccr8nwy3hjg2sw5vk65e99lwuhrhw0nuya2u57qszltvx7egp74jydn",
+            "Have you seen this: lnbc12u1p3lvjeupp5a5ecgp45k6pa8tu7rnkgzfuwdy3l5ylv3k5tdzrg4cr8rj2f364sdq5g9kxy7fqd9h8vmmfvdjscqzpgxqyz5vqsp5zuzyetf33aphetf0e80w7tztw6dfsjs4lmvya4cyk8umfsx00qts9qyyssqke9hphcr36zvcav8wr502g0mhfhxpy8m9tt36zttg8vldm2qxw039ulccr8nwy3hjg2sw5vk65e99lwuhrhw0nuya2u57qszltvx7egp74jydn I think I have to pay",
+            "pt",
+        )
+
+        assertTranslateContains(
+            "lnbc10u1p3l0wg0pp5y5y3vxt3429m28uuq56uqhwxadftn67yaarq06h3y9nqapz72n6sdqqxqyjw5q9q7sqqqqqqqqqqqqqqqqqqqqqqqqq9qsqsp5y2tazp42xde3c0tdsz30zqcekrt0lzrneszdtagy2qn7vs0d3p5qrzjqwryaup9lh50kkranzgcdnn2fgvx390wgj5jd07rwr3vxeje0glcll7jdvcln4lhw5qqqqlgqqqqqeqqjqdau9jzseecmvmh03h88xyf5f980xx45fmn0cej654v5jr79ye36pww90jwdda38damlmgt54v8rn6q9kywtw057rh4v3wwrmn8fajagqnssr7v",
+            "Test lnbc10u1p3l0wg0pp5y5y3vxt3429m28uuq56uqhwxadftn67yaarq06h3y9nqapz72n6sdqqxqyjw5q9q7sqqqqqqqqqqqqqqqqqqqqqqqqq9qsqsp5y2tazp42xde3c0tdsz30zqcekrt0lzrneszdtagy2qn7vs0d3p5qrzjqwryaup9lh50kkranzgcdnn2fgvx390wgj5jd07rwr3vxeje0glcll7jdvcln4lhw5qqqqlgqqqqqeqqjqdau9jzseecmvmh03h88xyf5f980xx45fmn0cej654v5jr79ye36pww90jwdda38damlmgt54v8rn6q9kywtw057rh4v3wwrmn8fajagqnssr7v",
+            "pt",
+        )
+    }
+
+    @Test
+    fun testNostrEvents() {
+        assertTranslateContains(
+            "nostr:nevent1qqs0tsw8hjacs4fppgdg7f5yhgwwfkyua4xcs3re9wwkpkk2qeu6mhql22rcy",
+            "sure, nostr:nevent1qqs0tsw8hjacs4fppgdg7f5yhgwwfkyua4xcs3re9wwkpkk2qeu6mhql22rcy",
+            "en",
+        )
+    }
+
+    @Test
+    fun testJapaneseTranslationsOfUrl() {
+        assertTranslateContains(
+            "https://youtu.be/wMYFmCDy_Eg",
+            "うちの会社の小さい先輩の話 第1話「うちの会社の先輩は小さくて可愛い」\n" +
+                "\n" +
+                "https://youtu.be/wMYFmCDy_Eg\n" +
+                "\n" +
+                "先輩がうざい後輩の話と似たような話かと思ったけど、もっとオタクの妄想あるある的なものを詰め込んだやつだ。ワードとかシチュエーションとか、ヒロインのサイズ感とか。知らんけど",
+            "en",
+        )
+    }
+
+    @Test
+    fun testEmoji() {
+        assertTranslateContains(
+            "https://cdn.nostr.build/i/df3783dcdf7dd289ba02ba538dc039c8fe1d4db055e580b81604ed88c6af4ee0.jpg",
+            "\uD83E\uDD23 https://cdn.nostr.build/i/df3783dcdf7dd289ba02ba538dc039c8fe1d4db055e580b81604ed88c6af4ee0.jpg ",
+            "pt",
+        )
+    }
+}
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:name=".Amethyst">
+
+        <receiver
+            android:exported="true"
+            android:enabled="true"
+            android:name=".service.notifications.PushMessageReceiver">
+            <intent-filter>
+                <action android:name="org.unifiedpush.android.connector.MESSAGE"/>
+                <action android:name="org.unifiedpush.android.connector.UNREGISTERED"/>
+                <action android:name="org.unifiedpush.android.connector.NEW_ENDPOINT"/>
+                <action android:name="org.unifiedpush.android.connector.REGISTRATION_FAILED"/>
+                <action android:name="org.unifiedpush.android.connector.REGISTRATION_REFUSED"/>
+            </intent-filter>
+        </receiver>
+
+    </application>
+
+</manifest>
@@ -0,0 +1,25 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.lang
+
+object LanguageTranslatorService {
+    fun clear() {}
+}
@@ -0,0 +1,107 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.content.Context
+import android.content.pm.PackageManager
+import android.os.Build
+import android.util.Log
+import com.vitorpamplona.amethyst.Amethyst
+import org.unifiedpush.android.connector.UnifiedPush
+
+interface PushDistributorActions {
+    fun getSavedDistributor(): String
+
+    fun getInstalledDistributors(): List<String>
+
+    fun saveDistributor(distributor: String)
+
+    fun removeSavedDistributor()
+}
+
+object PushDistributorHandler : PushDistributorActions {
+    private val appContext = Amethyst.instance.applicationContext
+    private val unifiedPush: UnifiedPush = UnifiedPush
+
+    private var endpointInternal = ""
+    val endpoint = endpointInternal
+
+    fun getSavedEndpoint() = endpoint
+
+    fun setEndpoint(newEndpoint: String) {
+        endpointInternal = newEndpoint
+        Log.d("PushHandler", "New endpoint saved : $endpointInternal")
+    }
+
+    fun removeEndpoint() {
+        endpointInternal = ""
+    }
+
+    override fun getSavedDistributor(): String {
+        return unifiedPush.getSavedDistributor(appContext) ?: ""
+    }
+
+    fun savedDistributorExists(): Boolean = getSavedDistributor().isNotEmpty()
+
+    override fun getInstalledDistributors(): List<String> {
+        return unifiedPush.getDistributors(appContext)
+    }
+
+    fun formattedDistributorNames(): List<String> {
+        val distributorsArray = getInstalledDistributors().toTypedArray()
+        val distributorsNameArray =
+            distributorsArray
+                .map {
+                    try {
+                        val ai =
+                            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                                appContext.packageManager.getApplicationInfo(
+                                    it,
+                                    PackageManager.ApplicationInfoFlags.of(
+                                        PackageManager.GET_META_DATA.toLong(),
+                                    ),
+                                )
+                            } else {
+                                appContext.packageManager.getApplicationInfo(it, 0)
+                            }
+                        appContext.packageManager.getApplicationLabel(ai)
+                    } catch (e: PackageManager.NameNotFoundException) {
+                        it
+                    }
+                        as String
+                }
+                .toTypedArray()
+        return distributorsNameArray.toList()
+    }
+
+    override fun saveDistributor(distributor: String) {
+        unifiedPush.saveDistributor(appContext, distributor)
+        unifiedPush.registerApp(appContext)
+    }
+
+    override fun removeSavedDistributor() {
+        unifiedPush.safeRemoveDistributor(appContext)
+    }
+
+    fun forceRemoveDistributor(context: Context) {
+        unifiedPush.forceRemoveDistributor(context)
+    }
+}
@@ -0,0 +1,133 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.app.NotificationManager
+import android.content.Context
+import android.content.Intent
+import android.util.Log
+import android.util.LruCache
+import androidx.core.content.ContextCompat
+import com.vitorpamplona.amethyst.Amethyst
+import com.vitorpamplona.amethyst.LocalPreferences
+import com.vitorpamplona.amethyst.service.notifications.NotificationUtils.getOrCreateDMChannel
+import com.vitorpamplona.amethyst.service.notifications.NotificationUtils.getOrCreateZapChannel
+import com.vitorpamplona.quartz.events.Event
+import com.vitorpamplona.quartz.events.GiftWrapEvent
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import org.unifiedpush.android.connector.MessagingReceiver
+
+class PushMessageReceiver : MessagingReceiver() {
+    companion object {
+        private val TAG = "Amethyst-OSSPushReceiver"
+    }
+
+    private val appContext = Amethyst.instance.applicationContext
+    private val scope = CoroutineScope(Dispatchers.IO + SupervisorJob())
+    private val eventCache = LruCache<String, String>(100)
+    private val pushHandler = PushDistributorHandler
+
+    override fun onMessage(
+        context: Context,
+        message: ByteArray,
+        instance: String,
+    ) {
+        val messageStr = String(message)
+        Log.d(TAG, "New message ${message.decodeToString()} for Instance: $instance")
+        scope.launch {
+            try {
+                parseMessage(messageStr)?.let { receiveIfNew(it) }
+            } catch (e: Exception) {
+                if (e is CancellationException) throw e
+                Log.d(TAG, "Message could not be parsed: ${e.message}")
+            }
+        }
+    }
+
+    private suspend fun parseMessage(message: String): GiftWrapEvent? {
+        (Event.fromJson(message) as? GiftWrapEvent)?.let {
+            return it
+        }
+        return null
+    }
+
+    private suspend fun receiveIfNew(event: GiftWrapEvent) {
+        if (eventCache.get(event.id) == null) {
+            eventCache.put(event.id, event.id)
+            EventNotificationConsumer(appContext).consume(event)
+        }
+    }
+
+    override fun onNewEndpoint(
+        context: Context,
+        endpoint: String,
+        instance: String,
+    ) {
+        Log.d(TAG, "New endpoint provided:- $endpoint for Instance: $instance")
+        val sanitizedEndpoint = endpoint.dropLast(5)
+        pushHandler.setEndpoint(sanitizedEndpoint)
+        scope.launch(Dispatchers.IO) {
+            RegisterAccounts(LocalPreferences.allSavedAccounts()).go(sanitizedEndpoint)
+            notificationManager().getOrCreateZapChannel(appContext)
+            notificationManager().getOrCreateDMChannel(appContext)
+        }
+    }
+
+    override fun onReceive(
+        context: Context,
+        intent: Intent,
+    ) {
+        val intentData = intent.dataString
+        val intentAction = intent.action.toString()
+        Log.d(TAG, "Intent Data:- $intentData Intent Action: $intentAction")
+        super.onReceive(context, intent)
+    }
+
+    override fun onRegistrationFailed(
+        context: Context,
+        instance: String,
+    ) {
+        Log.d(TAG, "Registration failed for Instance: $instance")
+        scope.cancel()
+        pushHandler.forceRemoveDistributor(context)
+    }
+
+    override fun onUnregistered(
+        context: Context,
+        instance: String,
+    ) {
+        val removedEndpoint = pushHandler.endpoint
+        Log.d(TAG, "Endpoint: $removedEndpoint removed for Instance: $instance")
+        Log.d(TAG, "App is unregistered. ")
+        pushHandler.forceRemoveDistributor(context)
+        pushHandler.removeEndpoint()
+    }
+
+    fun notificationManager(): NotificationManager {
+        return ContextCompat.getSystemService(appContext, NotificationManager::class.java)
+            as NotificationManager
+    }
+}
@@ -0,0 +1,44 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.util.Log
+import com.vitorpamplona.amethyst.AccountInfo
+import kotlinx.coroutines.CancellationException
+
+object PushNotificationUtils {
+    var hasInit: Boolean = false
+    private val pushHandler = PushDistributorHandler
+
+    suspend fun init(accounts: List<AccountInfo>) {
+        if (hasInit || pushHandler.savedDistributorExists()) {
+            return
+        }
+        try {
+            if (pushHandler.savedDistributorExists()) {
+                RegisterAccounts(accounts).go(pushHandler.getSavedEndpoint())
+            }
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            Log.d("Amethyst-OSSPushUtils", "Failed to get endpoint.")
+        }
+    }
+}
@@ -0,0 +1,212 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.components
+
+import android.util.Log
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import com.google.accompanist.permissions.ExperimentalPermissionsApi
+import com.google.accompanist.permissions.isGranted
+import com.halilibo.richtext.commonmark.CommonmarkAstNodeParser
+import com.halilibo.richtext.commonmark.MarkdownParseOptions
+import com.halilibo.richtext.markdown.BasicMarkdown
+import com.halilibo.richtext.ui.RichTextStyle
+import com.halilibo.richtext.ui.material3.RichText
+import com.halilibo.richtext.ui.resolveDefaults
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.service.notifications.PushDistributorHandler
+import com.vitorpamplona.amethyst.ui.screen.SharedPreferencesViewModel
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.CheckifItNeedsToRequestNotificationPermission
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.SettingsRow
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.SpinnerSelectionDialog
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.TitleExplainer
+import com.vitorpamplona.amethyst.ui.stringRes
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.toImmutableList
+
+@OptIn(ExperimentalPermissionsApi::class)
+@Composable
+fun SelectNotificationProvider(sharedPreferencesViewModel: SharedPreferencesViewModel) {
+    val notificationPermissionState =
+        CheckifItNeedsToRequestNotificationPermission(sharedPreferencesViewModel)
+
+    if (notificationPermissionState.status.isGranted) {
+        if (!sharedPreferencesViewModel.sharedPrefs.dontShowPushNotificationSelector) {
+            val context = LocalContext.current
+            var distributorPresent by remember {
+                mutableStateOf(PushDistributorHandler.savedDistributorExists())
+            }
+            if (!distributorPresent) {
+                LoadDistributors { currentDistributor, list, readableListWithExplainer ->
+                    if (readableListWithExplainer.size > 1) {
+                        SpinnerSelectionDialog(
+                            title = stringRes(id = R.string.select_push_server),
+                            options = readableListWithExplainer,
+                            onSelect = { index ->
+                                if (list[index] == "None") {
+                                    PushDistributorHandler.forceRemoveDistributor(context)
+                                    sharedPreferencesViewModel.dontAskForNotificationPermissions()
+                                    sharedPreferencesViewModel.dontShowPushNotificationSelector()
+                                } else {
+                                    val fullDistributorName = list[index]
+                                    PushDistributorHandler.saveDistributor(fullDistributorName)
+                                }
+                                distributorPresent = true
+                                Log.d("Amethyst", "NotificationScreen: Distributor registered.")
+                            },
+                            onDismiss = {
+                                distributorPresent = true
+                                Log.d("Amethyst", "NotificationScreen: Distributor dialog dismissed.")
+                            },
+                        )
+                    } else {
+                        AlertDialog(
+                            onDismissRequest = { distributorPresent = true },
+                            title = { Text(stringRes(R.string.push_server_install_app)) },
+                            text = {
+                                val content = stringRes(R.string.push_server_install_app_description)
+
+                                val astNode =
+                                    remember {
+                                        CommonmarkAstNodeParser(MarkdownParseOptions.MarkdownWithLinks).parse(content)
+                                    }
+
+                                RichText(
+                                    style = RichTextStyle().resolveDefaults(),
+                                    renderer = null,
+                                ) {
+                                    BasicMarkdown(astNode)
+                                }
+                            },
+                            confirmButton = {
+                                Row(
+                                    modifier = Modifier.padding(all = 8.dp).fillMaxWidth(),
+                                    horizontalArrangement = Arrangement.SpaceBetween,
+                                ) {
+                                    TextButton(
+                                        onClick = {
+                                            distributorPresent = true
+                                            sharedPreferencesViewModel.dontShowPushNotificationSelector()
+                                        },
+                                    ) {
+                                        Text(stringRes(R.string.quick_action_dont_show_again_button))
+                                    }
+                                    Button(
+                                        onClick = { distributorPresent = true },
+                                        contentPadding = PaddingValues(horizontal = 16.dp),
+                                    ) {
+                                        Row(
+                                            verticalAlignment = Alignment.CenterVertically,
+                                        ) {
+                                            Icon(
+                                                imageVector = Icons.Default.Check,
+                                                contentDescription = null,
+                                            )
+                                            Spacer(Modifier.width(8.dp))
+                                            Text(stringRes(R.string.error_dialog_button_ok))
+                                        }
+                                    }
+                                }
+                            },
+                        )
+                    }
+                }
+            } else {
+                val currentDistributor = PushDistributorHandler.getSavedDistributor()
+                PushDistributorHandler.saveDistributor(currentDistributor)
+            }
+        }
+    }
+}
+
+@Composable
+fun LoadDistributors(onInner: @Composable (String, ImmutableList<String>, ImmutableList<TitleExplainer>) -> Unit) {
+    val currentDistributor = PushDistributorHandler.getSavedDistributor().ifBlank { null } ?: "None"
+
+    val list =
+        remember {
+            PushDistributorHandler.getInstalledDistributors().plus("None").toImmutableList()
+        }
+
+    val readableListWithExplainer =
+        PushDistributorHandler
+            .formattedDistributorNames()
+            .mapIndexed { index, name ->
+                TitleExplainer(
+                    name,
+                    stringRes(id = R.string.push_server_uses_app_explainer, list[index]),
+                )
+            }.plus(
+                TitleExplainer(
+                    stringRes(id = R.string.push_server_none),
+                    stringRes(id = R.string.push_server_none_explainer),
+                ),
+            ).toImmutableList()
+
+    onInner(
+        currentDistributor,
+        list,
+        readableListWithExplainer,
+    )
+}
+
+@Composable
+fun PushNotificationSettingsRow(sharedPreferencesViewModel: SharedPreferencesViewModel) {
+    val context = LocalContext.current
+
+    LoadDistributors { currentDistributor, list, readableListWithExplainer ->
+        SettingsRow(
+            R.string.push_server_title,
+            R.string.push_server_explainer,
+            selectedItens = readableListWithExplainer,
+            selectedIndex = list.indexOf(currentDistributor),
+        ) { index ->
+            if (list[index] == "None") {
+                sharedPreferencesViewModel.dontAskForNotificationPermissions()
+                sharedPreferencesViewModel.dontShowPushNotificationSelector()
+                PushDistributorHandler.forceRemoveDistributor(context)
+            } else {
+                PushDistributorHandler.saveDistributor(list[index])
+            }
+        }
+    }
+}
@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.components
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.quartz.events.ImmutableListOfLists
+
+@Composable
+fun TranslatableRichTextViewer(
+    content: String,
+    canPreview: Boolean,
+    quotesLeft: Int,
+    modifier: Modifier = Modifier,
+    tags: ImmutableListOfLists<String>,
+    backgroundColor: MutableState<Color>,
+    id: String,
+    callbackUri: String? = null,
+    accountViewModel: AccountViewModel,
+    nav: (String) -> Unit,
+) = ExpandableRichTextViewer(
+    content,
+    canPreview,
+    quotesLeft,
+    modifier,
+    tags,
+    backgroundColor,
+    id,
+    callbackUri,
+    accountViewModel,
+    nav,
+)
@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+    <queries>
+        <package android:name="org.torproject.android"/>
+        <intent>
+            <action android:name="android.intent.action.VIEW" />
+            <category android:name="android.intent.category.BROWSABLE" />
+            <data android:scheme="nostrsigner" />
+        </intent>
+    </queries>
+
+    <!-- Doesn't require a camera -->
+    <uses-feature android:name="android.hardware.camera" android:required="false" />
+
+    <!-- To connect with relays -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <!-- To Upload media (newer devices) -->
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
+    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO"/>
+
+    <!-- To Upload media (old devices) -->
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+
+    <!-- To read QRs that contain nostr:<NIP19> -->
+    <uses-permission android:name="android.permission.CAMERA" />
+
+    <!-- To read NFCs that contain nostr:<NIP19> -->
+    <uses-permission android:name="android.permission.NFC" />
+
+    <!-- To know receive notifications when the app connects/disconnects from the web -->
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+
+    <!-- Audio/Video Playback -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK" />
+
+    <!-- Keeps screen on while playing videos -->
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+
+    <!-- This notification permission is needed for some phones -->
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+
+    <!-- Adds Geohash to posts if active -->
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+
+    <!-- Old permission to access media -->
+    <uses-permission
+        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="28"
+        tools:ignore="ScopedStorage" />
+
+    <application
+        android:allowBackup="false"
+        android:name=".Amethyst"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:enableOnBackInvokedCallback="true"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Amethyst"
+        android:largeHeap="true"
+        android:usesCleartextTraffic="true"
+        android:hardwareAccelerated="true"
+        android:localeConfig="@xml/locales_config"
+        tools:targetApi="34">
+        <activity
+            android:name=".ui.MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:windowSoftInputMode="adjustResize"
+            android:configChanges="orientation|screenSize|screenLayout"
+            android:theme="@style/Theme.Amethyst">
+
+            <intent-filter android:label="Amethyst">
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+
+            <intent-filter android:label="Amethyst">
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="nostr" />
+            </intent-filter>
+
+            <intent-filter android:label="Amethyst">
+                <action android:name="android.nfc.action.NDEF_DISCOVERED"/>
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:scheme="nostr" />
+            </intent-filter>
+
+            <intent-filter android:label="Amethyst">
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="nostrwalletconnect" />
+                <data android:scheme="nostr+walletconnect" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.app.lib_name"
+                android:value="" />
+        </activity>
+
+        <activity
+            android:name="com.journeyapps.barcodescanner.CaptureActivity"
+            android:screenOrientation="fullSensor"
+            tools:replace="screenOrientation" />
+
+        <service
+            android:name=".service.playback.PlaybackService"
+            android:foregroundServiceType="mediaPlayback"
+            android:stopWithTask="true"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="androidx.media3.session.MediaSessionService"/>
+                <action android:name="android.media.browse.MediaBrowserService"/>
+            </intent-filter>
+        </service>
+
+    </application>
+
+</manifest>
@@ -0,0 +1,124 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package androidx.compose.material3.pullrefresh
+
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
+import androidx.compose.ui.input.nestedscroll.NestedScrollSource
+import androidx.compose.ui.input.nestedscroll.NestedScrollSource.Companion.Drag
+import androidx.compose.ui.input.nestedscroll.nestedScroll
+import androidx.compose.ui.platform.debugInspectorInfo
+import androidx.compose.ui.platform.inspectable
+import androidx.compose.ui.unit.Velocity
+
+/**
+ * A nested scroll modifier that provides scroll events to [state].
+ *
+ * Note that this modifier must be added above a scrolling container, such as a lazy column, in
+ * order to receive scroll events. For example:
+ *
+ * @param state The [PullRefreshState] associated with this pull-to-refresh component. The state
+ *   will be updated by this modifier.
+ * @param enabled If not enabled, all scroll delta and fling velocity will be ignored.
+ * @sample androidx.compose.material.samples.PullRefreshSample
+ */
+fun Modifier.pullRefresh(
+    state: PullRefreshState,
+    enabled: Boolean = true,
+) = inspectable(
+    inspectorInfo =
+        debugInspectorInfo {
+            name = "pullRefresh"
+            properties["state"] = state
+            properties["enabled"] = enabled
+        },
+) {
+    Modifier.pullRefresh(state::onPull, state::onRelease, enabled)
+}
+
+/**
+ * A nested scroll modifier that provides [onPull] and [onRelease] callbacks to aid building custom
+ * pull refresh components.
+ *
+ * Note that this modifier must be added above a scrolling container, such as a lazy column, in
+ * order to receive scroll events. For example:
+ *
+ * @param onPull Callback for dispatching vertical scroll delta, takes float pullDelta as argument.
+ *   Positive delta (pulling down) is dispatched only if the child does not consume it (i.e. pulling
+ *   down despite being at the top of a scrollable component), whereas negative delta (swiping up)
+ *   is dispatched first (in case it is needed to push the indicator back up), and then the
+ *   unconsumed delta is passed on to the child. The callback returns how much delta was consumed.
+ * @param onRelease Callback for when drag is released, takes float flingVelocity as argument. The
+ *   callback returns how much velocity was consumed - in most cases this should only consume
+ *   velocity if pull refresh has been dragged already and the velocity is positive (the fling is
+ *   downwards), as an upwards fling should typically still scroll a scrollable component beneath
+ *   the pullRefresh. This is invoked before any remaining velocity is passed to the child.
+ * @param enabled If not enabled, all scroll delta and fling velocity will be ignored and neither
+ *   [onPull] nor [onRelease] will be invoked.
+ * @sample androidx.compose.material.samples.CustomPullRefreshSample
+ */
+fun Modifier.pullRefresh(
+    onPull: (pullDelta: Float) -> Float,
+    onRelease: suspend (flingVelocity: Float) -> Float,
+    enabled: Boolean = true,
+) = inspectable(
+    inspectorInfo =
+        debugInspectorInfo {
+            name = "pullRefresh"
+            properties["onPull"] = onPull
+            properties["onRelease"] = onRelease
+            properties["enabled"] = enabled
+        },
+) {
+    Modifier.nestedScroll(PullRefreshNestedScrollConnection(onPull, onRelease, enabled))
+}
+
+private class PullRefreshNestedScrollConnection(
+    private val onPull: (pullDelta: Float) -> Float,
+    private val onRelease: suspend (flingVelocity: Float) -> Float,
+    private val enabled: Boolean,
+) : NestedScrollConnection {
+    override fun onPreScroll(
+        available: Offset,
+        source: NestedScrollSource,
+    ): Offset =
+        when {
+            !enabled -> Offset.Zero
+            source == Drag && available.y < 0 -> Offset(0f, onPull(available.y)) // Swiping up
+            else -> Offset.Zero
+        }
+
+    override fun onPostScroll(
+        consumed: Offset,
+        available: Offset,
+        source: NestedScrollSource,
+    ): Offset =
+        when {
+            !enabled -> Offset.Zero
+            source == Drag && available.y > 0 -> Offset(0f, onPull(available.y)) // Pulling down
+            else -> Offset.Zero
+        }
+
+    override suspend fun onPreFling(available: Velocity): Velocity {
+        return Velocity(0f, onRelease(available.y))
+    }
+}
@@ -0,0 +1,231 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package androidx.compose.material3.pullrefresh
+
+import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.LinearEasing
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.contentColorFor
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Rect
+import androidx.compose.ui.geometry.center
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.Path
+import androidx.compose.ui.graphics.PathFillType
+import androidx.compose.ui.graphics.StrokeCap
+import androidx.compose.ui.graphics.drawscope.DrawScope
+import androidx.compose.ui.graphics.drawscope.Stroke
+import androidx.compose.ui.graphics.drawscope.rotate
+import androidx.compose.ui.semantics.semantics
+import androidx.compose.ui.unit.dp
+import kotlin.math.abs
+import kotlin.math.max
+import kotlin.math.min
+import kotlin.math.pow
+
+/**
+ * The default indicator for Compose pull-to-refresh, based on Android's SwipeRefreshLayout.
+ *
+ * @param refreshing A boolean representing whether a refresh is occurring.
+ * @param state The [PullRefreshState] which controls where and how the indicator will be drawn.
+ * @param modifier Modifiers for the indicator.
+ * @param backgroundColor The color of the indicator's background.
+ * @param contentColor The color of the indicator's arc and arrow.
+ * @param scale A boolean controlling whether the indicator's size scales with pull progress or not.
+ * @sample androidx.compose.material.samples.PullRefreshSample
+ */
+@Composable
+fun PullRefreshIndicator(
+    refreshing: Boolean,
+    state: PullRefreshState,
+    modifier: Modifier = Modifier,
+    backgroundColor: Color = MaterialTheme.colorScheme.surface,
+    contentColor: Color = contentColorFor(backgroundColor),
+    scale: Boolean = false,
+) {
+    val showElevation by
+        remember(refreshing, state) { derivedStateOf { refreshing || state.position > 0.5f } }
+
+    Surface(
+        modifier = modifier.size(IndicatorSize).pullRefreshIndicatorTransform(state, scale),
+        shape = SpinnerShape,
+        color = backgroundColor,
+        shadowElevation = if (showElevation) Elevation else 0.dp,
+    ) {
+        Crossfade(
+            targetState = refreshing,
+            animationSpec = tween(durationMillis = CROSSFADE_DURATION_MS),
+        ) { refreshing ->
+            Box(
+                modifier = Modifier.fillMaxSize(),
+                contentAlignment = Alignment.Center,
+            ) {
+                val spinnerSize = (ArcRadius + StrokeWidth).times(2)
+
+                if (refreshing) {
+                    CircularProgressIndicator(
+                        color = contentColor,
+                        strokeWidth = StrokeWidth,
+                        modifier = Modifier.size(spinnerSize),
+                    )
+                } else {
+                    CircularArrowIndicator(state, contentColor, Modifier.size(spinnerSize))
+                }
+            }
+        }
+    }
+}
+
+/** Modifier.size MUST be specified. */
+@Composable
+private fun CircularArrowIndicator(
+    state: PullRefreshState,
+    color: Color,
+    modifier: Modifier,
+) {
+    val path = remember { Path().apply { fillType = PathFillType.EvenOdd } }
+
+    val targetAlpha by
+        remember(state) { derivedStateOf { if (state.progress >= 1f) MAX_ALPHA else MIN_ALPHA } }
+
+    val alphaState = animateFloatAsState(targetValue = targetAlpha, animationSpec = AlphaTween)
+
+    // Empty semantics for tests
+    Canvas(modifier.semantics {}) {
+        val values = ArrowValues(state.progress)
+        val alpha = alphaState.value
+
+        rotate(degrees = values.rotation) {
+            val arcRadius = ArcRadius.toPx() + StrokeWidth.toPx() / 2f
+            val arcBounds =
+                Rect(
+                    size.center.x - arcRadius,
+                    size.center.y - arcRadius,
+                    size.center.x + arcRadius,
+                    size.center.y + arcRadius,
+                )
+            drawArc(
+                color = color,
+                alpha = alpha,
+                startAngle = values.startAngle,
+                sweepAngle = values.endAngle - values.startAngle,
+                useCenter = false,
+                topLeft = arcBounds.topLeft,
+                size = arcBounds.size,
+                style =
+                    Stroke(
+                        width = StrokeWidth.toPx(),
+                        cap = StrokeCap.Square,
+                    ),
+            )
+            drawArrow(path, arcBounds, color, alpha, values)
+        }
+    }
+}
+
+@Immutable
+private class ArrowValues(
+    val rotation: Float,
+    val startAngle: Float,
+    val endAngle: Float,
+    val scale: Float,
+)
+
+private fun ArrowValues(progress: Float): ArrowValues {
+    // Discard first 40% of progress. Scale remaining progress to full range between 0 and 100%.
+    val adjustedPercent = max(min(1f, progress) - 0.4f, 0f) * 5 / 3
+    // How far beyond the threshold pull has gone, as a percentage of the threshold.
+    val overshootPercent = abs(progress) - 1.0f
+    // Limit the overshoot to 200%. Linear between 0 and 200.
+    val linearTension = overshootPercent.coerceIn(0f, 2f)
+    // Non-linear tension. Increases with linearTension, but at a decreasing rate.
+    val tensionPercent = linearTension - linearTension.pow(2) / 4
+
+    // Calculations based on SwipeRefreshLayout specification.
+    val endTrim = adjustedPercent * MAX_PROGRESS_ARC
+    val rotation = (-0.25f + 0.4f * adjustedPercent + tensionPercent) * 0.5f
+    val startAngle = rotation * 360
+    val endAngle = (rotation + endTrim) * 360
+    val scale = min(1f, adjustedPercent)
+
+    return ArrowValues(rotation, startAngle, endAngle, scale)
+}
+
+private fun DrawScope.drawArrow(
+    arrow: Path,
+    bounds: Rect,
+    color: Color,
+    alpha: Float,
+    values: ArrowValues,
+) {
+    arrow.reset()
+    arrow.moveTo(0f, 0f) // Move to left corner
+    arrow.lineTo(x = ArrowWidth.toPx() * values.scale, y = 0f) // Line to right corner
+
+    // Line to tip of arrow
+    arrow.lineTo(
+        x = ArrowWidth.toPx() * values.scale / 2,
+        y = ArrowHeight.toPx() * values.scale,
+    )
+
+    val radius = min(bounds.width, bounds.height) / 2f
+    val inset = ArrowWidth.toPx() * values.scale / 2f
+    arrow.translate(
+        Offset(
+            x = radius + bounds.center.x - inset,
+            y = bounds.center.y + StrokeWidth.toPx() / 2f,
+        ),
+    )
+    arrow.close()
+    rotate(degrees = values.endAngle) { drawPath(path = arrow, color = color, alpha = alpha) }
+}
+
+private const val CROSSFADE_DURATION_MS = 100
+private const val MAX_PROGRESS_ARC = 0.8f
+
+private val IndicatorSize = 40.dp
+private val SpinnerShape = CircleShape
+private val ArcRadius = 7.5.dp
+private val StrokeWidth = 2.5.dp
+private val ArrowWidth = 10.dp
+private val ArrowHeight = 5.dp
+private val Elevation = 6.dp
+
+// Values taken from SwipeRefreshLayout
+private const val MIN_ALPHA = 0.3f
+private const val MAX_ALPHA = 1f
+private val AlphaTween = tween<Float>(300, easing = LinearEasing)
@@ -0,0 +1,77 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package androidx.compose.material3.pullrefresh
+
+import androidx.compose.animation.core.LinearOutSlowInEasing
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.drawWithContent
+import androidx.compose.ui.graphics.drawscope.clipRect
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.platform.debugInspectorInfo
+import androidx.compose.ui.platform.inspectable
+
+/**
+ * A modifier for translating the position and scaling the size of a pull-to-refresh indicator based
+ * on the given [PullRefreshState].
+ *
+ * @param state The [PullRefreshState] which determines the position of the indicator.
+ * @param scale A boolean controlling whether the indicator's size scales with pull progress or not.
+ * @sample androidx.compose.material.samples.PullRefreshIndicatorTransformSample
+ */
+fun Modifier.pullRefreshIndicatorTransform(
+    state: PullRefreshState,
+    scale: Boolean = false,
+) = inspectable(
+    inspectorInfo =
+        debugInspectorInfo {
+            name = "pullRefreshIndicatorTransform"
+            properties["state"] = state
+            properties["scale"] = scale
+        },
+) {
+    Modifier
+        // Essentially we only want to clip the at the top, so the indicator will not appear when
+        // the position is 0. It is preferable to clip the indicator as opposed to the layout that
+        // contains the indicator, as this would also end up clipping shadows drawn by items in a
+        // list for example - so we leave the clipping to the scrolling container. We use MAX_VALUE
+        // for the other dimensions to allow for more room for elevation / arbitrary indicators - we
+        // only ever really want to clip at the top edge.
+        .drawWithContent {
+            clipRect(
+                top = 0f,
+                left = -Float.MAX_VALUE,
+                right = Float.MAX_VALUE,
+                bottom = Float.MAX_VALUE,
+            ) {
+                this@drawWithContent.drawContent()
+            }
+        }
+        .graphicsLayer {
+            translationY = state.position - size.height
+
+            if (scale && !state.refreshing) {
+                val scaleFraction =
+                    LinearOutSlowInEasing.transform(state.position / state.threshold).coerceIn(0f, 1f)
+                scaleX = scaleFraction
+                scaleY = scaleFraction
+            }
+        }
+}
@@ -0,0 +1,234 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package androidx.compose.material3.pullrefresh
+
+import androidx.compose.animation.core.animate
+import androidx.compose.foundation.MutatorMutex
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.SideEffect
+import androidx.compose.runtime.State
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.rememberUpdatedState
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.launch
+import kotlin.math.abs
+import kotlin.math.pow
+
+/**
+ * Creates a [PullRefreshState] that is remembered across compositions.
+ *
+ * Changes to [refreshing] will result in [PullRefreshState] being updated.
+ *
+ * @param refreshing A boolean representing whether a refresh is currently occurring.
+ * @param onRefresh The function to be called to trigger a refresh.
+ * @param refreshThreshold The threshold below which, if a release occurs, [onRefresh] will be
+ *   called.
+ * @param refreshingOffset The offset at which the indicator will be drawn while refreshing. This
+ *   offset corresponds to the position of the bottom of the indicator.
+ * @sample androidx.compose.material.samples.PullRefreshSample
+ */
+@Composable
+fun rememberPullRefreshState(
+    refreshing: Boolean,
+    onRefresh: () -> Unit,
+    refreshThreshold: Dp = PullRefreshDefaults.RefreshThreshold,
+    refreshingOffset: Dp = PullRefreshDefaults.RefreshingOffset,
+): PullRefreshState {
+    require(refreshThreshold > 0.dp) { "The refresh trigger must be greater than zero!" }
+
+    val scope = rememberCoroutineScope()
+    val onRefreshState = rememberUpdatedState(onRefresh)
+    val thresholdPx: Float
+    val refreshingOffsetPx: Float
+
+    with(LocalDensity.current) {
+        thresholdPx = refreshThreshold.toPx()
+        refreshingOffsetPx = refreshingOffset.toPx()
+    }
+
+    val state =
+        remember(scope) { PullRefreshState(scope, onRefreshState, refreshingOffsetPx, thresholdPx) }
+
+    SideEffect {
+        state.setRefreshing(refreshing)
+        state.setThreshold(thresholdPx)
+        state.setRefreshingOffset(refreshingOffsetPx)
+    }
+
+    return state
+}
+
+/**
+ * A state object that can be used in conjunction with [pullRefresh] to add pull-to-refresh
+ * behaviour to a scroll component. Based on Android's SwipeRefreshLayout.
+ *
+ * Provides [progress], a float representing how far the user has pulled as a percentage of the
+ * refreshThreshold. Values of one or less indicate that the user has not yet pulled past the
+ * threshold. Values greater than one indicate how far past the threshold the user has pulled.
+ *
+ * Can be used in conjunction with [pullRefreshIndicatorTransform] to implement Android-like
+ * pull-to-refresh behaviour with a custom indicator.
+ *
+ * Should be created using [rememberPullRefreshState].
+ */
+class PullRefreshState
+    internal constructor(
+        private val animationScope: CoroutineScope,
+        private val onRefreshState: State<() -> Unit>,
+        refreshingOffset: Float,
+        threshold: Float,
+    ) {
+        /**
+         * A float representing how far the user has pulled as a percentage of the refreshThreshold.
+         *
+         * If the component has not been pulled at all, progress is zero. If the pull has reached halfway
+         * to the threshold, progress is 0.5f. A value greater than 1 indicates that pull has gone beyond
+         * the refreshThreshold - e.g. a value of 2f indicates that the user has pulled to two times the
+         * refreshThreshold.
+         */
+        val progress
+            get() = adjustedDistancePulled / threshold
+
+        val refreshing
+            get() = _refreshing
+
+        val position
+            get() = _position
+
+        val threshold
+            get() = _threshold
+
+        private val adjustedDistancePulled by derivedStateOf { distancePulled * DRAG_MULTIPLIER }
+
+        private var _refreshing by mutableStateOf(false)
+        private var _position by mutableStateOf(0f)
+        private var distancePulled by mutableStateOf(0f)
+        private var _threshold by mutableStateOf(threshold)
+        private var refreshingOffsetState by mutableStateOf(refreshingOffset)
+
+        internal fun onPull(pullDelta: Float): Float {
+            if (_refreshing) return 0f // Already refreshing, do nothing.
+
+            val newOffset = (distancePulled + pullDelta).coerceAtLeast(0f)
+            val dragConsumed = newOffset - distancePulled
+            distancePulled = newOffset
+            _position = calculateIndicatorPosition()
+            return dragConsumed
+        }
+
+        internal fun onRelease(velocity: Float): Float {
+            if (refreshing) return 0f // Already refreshing, do nothing
+
+            if (adjustedDistancePulled > threshold) {
+                onRefreshState.value()
+            }
+            animateIndicatorTo(0f)
+            val consumed =
+                when {
+                    // We are flinging without having dragged the pull refresh (for example a fling inside
+                    // a list) - don't consume
+                    distancePulled == 0f -> 0f
+                    // If the velocity is negative, the fling is upwards, and we don't want to prevent the
+                    // the list from scrolling
+                    velocity < 0f -> 0f
+                    // We are showing the indicator, and the fling is downwards - consume everything
+                    else -> velocity
+                }
+            distancePulled = 0f
+            return consumed
+        }
+
+        internal fun setRefreshing(refreshing: Boolean) {
+            if (_refreshing != refreshing) {
+                _refreshing = refreshing
+                distancePulled = 0f
+                animateIndicatorTo(if (refreshing) refreshingOffsetState else 0f)
+            }
+        }
+
+        internal fun setThreshold(threshold: Float) {
+            _threshold = threshold
+        }
+
+        internal fun setRefreshingOffset(refreshingOffset: Float) {
+            if (refreshingOffsetState != refreshingOffset) {
+                refreshingOffsetState = refreshingOffset
+                if (refreshing) animateIndicatorTo(refreshingOffset)
+            }
+        }
+
+        // Make sure to cancel any existing animations when we launch a new one. We use this instead of
+        // Animatable as calling snapTo() on every drag delta has a one frame delay, and some extra
+        // overhead of running through the animation pipeline instead of directly mutating the state.
+        private val mutatorMutex = MutatorMutex()
+
+        private fun animateIndicatorTo(offset: Float) =
+            animationScope.launch {
+                mutatorMutex.mutate {
+                    animate(initialValue = _position, targetValue = offset) { value, _ -> _position = value }
+                }
+            }
+
+        private fun calculateIndicatorPosition(): Float =
+            when {
+                // If drag hasn't gone past the threshold, the position is the adjustedDistancePulled.
+                adjustedDistancePulled <= threshold -> adjustedDistancePulled
+                else -> {
+                    // How far beyond the threshold pull has gone, as a percentage of the threshold.
+                    val overshootPercent = abs(progress) - 1.0f
+                    // Limit the overshoot to 200%. Linear between 0 and 200.
+                    val linearTension = overshootPercent.coerceIn(0f, 2f)
+                    // Non-linear tension. Increases with linearTension, but at a decreasing rate.
+                    val tensionPercent = linearTension - linearTension.pow(2) / 4
+                    // The additional offset beyond the threshold.
+                    val extraOffset = threshold * tensionPercent
+                    threshold + extraOffset
+                }
+            }
+    }
+
+/** Default parameter values for [rememberPullRefreshState]. */
+object PullRefreshDefaults {
+    /**
+     * If the indicator is below this threshold offset when it is released, a refresh will be
+     * triggered.
+     */
+    val RefreshThreshold = 80.dp
+
+    /** The offset at which the indicator should be rendered whilst a refresh is occurring. */
+    val RefreshingOffset = 56.dp
+}
+
+/**
+ * The distance pulled is multiplied by this value to give us the adjusted distance pulled, which is
+ * used in calculating the indicator position (when the adjusted distance pulled is less than the
+ * refresh threshold, it is the indicator position, otherwise the indicator position is derived from
+ * the progress).
+ */
+private const val DRAG_MULTIPLIER = 0.5f
@@ -0,0 +1,115 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import android.app.Application
+import android.content.Context
+import android.os.StrictMode
+import android.os.StrictMode.ThreadPolicy
+import android.os.StrictMode.VmPolicy
+import android.util.Log
+import androidx.security.crypto.EncryptedSharedPreferences
+import coil.ImageLoader
+import coil.disk.DiskCache
+import com.vitorpamplona.amethyst.service.ots.OkHttpBlockstreamExplorer
+import com.vitorpamplona.amethyst.service.ots.OkHttpCalendarBuilder
+import com.vitorpamplona.amethyst.service.playback.VideoCache
+import com.vitorpamplona.quartz.events.OtsEvent
+import com.vitorpamplona.quartz.ots.OpenTimestamps
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
+import java.io.File
+import kotlin.time.measureTimedValue
+
+class Amethyst : Application() {
+    val applicationIOScope = CoroutineScope(Dispatchers.IO + SupervisorJob())
+
+    override fun onTerminate() {
+        super.onTerminate()
+        applicationIOScope.cancel()
+    }
+
+    val videoCache: VideoCache by lazy {
+        val newCache = VideoCache()
+        runBlocking {
+            newCache.initFileCache(this@Amethyst)
+        }
+        newCache
+    }
+
+    val coilCache: DiskCache by lazy {
+        DiskCache.Builder()
+            .directory(applicationContext.safeCacheDir.resolve("image_cache"))
+            .maxSizePercent(0.2)
+            .maximumMaxSizeBytes(500L * 1024 * 1024) // 250MB
+            .build()
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+
+        instance = this
+
+        OtsEvent.otsInstance = OpenTimestamps(OkHttpBlockstreamExplorer(), OkHttpCalendarBuilder())
+
+        if (BuildConfig.DEBUG) {
+            StrictMode.setThreadPolicy(
+                ThreadPolicy.Builder().detectAll().penaltyLog().build(),
+            )
+            StrictMode.setVmPolicy(
+                VmPolicy.Builder().detectAll().penaltyLog().build(),
+            )
+        }
+
+        GlobalScope.launch(Dispatchers.IO) {
+            val (value, elapsed) =
+                measureTimedValue {
+                    // initializes the video cache in a thread
+                    videoCache
+                }
+            Log.d("Rendering Metrics", "VideoCache initialized in $elapsed")
+        }
+    }
+
+    fun imageLoaderBuilder(): ImageLoader.Builder {
+        return ImageLoader.Builder(applicationContext).diskCache { coilCache }
+    }
+
+    fun encryptedStorage(npub: String? = null): EncryptedSharedPreferences {
+        return EncryptedStorage.preferences(instance, npub)
+    }
+
+    companion object {
+        lateinit var instance: Amethyst
+            private set
+    }
+}
+
+internal val Context.safeCacheDir: File
+    get() {
+        val cacheDir = checkNotNull(cacheDir) { "cacheDir == null" }
+        return cacheDir.apply { mkdirs() }
+    }
@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import android.content.Context
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKey
+
+class EncryptedStorage {
+    companion object {
+        private const val PREFERENCES_NAME = "secret_keeper"
+
+        // returns the preferences for each account or a global file if null.
+        fun prefsFileName(npub: String? = null): String {
+            return if (npub == null) PREFERENCES_NAME else "${PREFERENCES_NAME}_$npub"
+        }
+
+        fun preferences(
+            applicationContext: Context,
+            npub: String? = null,
+        ): EncryptedSharedPreferences {
+            val masterKey: MasterKey =
+                MasterKey.Builder(applicationContext, MasterKey.DEFAULT_MASTER_KEY_ALIAS)
+                    .setKeyScheme(MasterKey.KeyScheme.AES256_GCM)
+                    .build()
+
+            return EncryptedSharedPreferences.create(
+                applicationContext,
+                prefsFileName(npub),
+                masterKey,
+                EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+                EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM,
+            ) as EncryptedSharedPreferences
+        }
+    }
+}
@@ -0,0 +1,689 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.SharedPreferences
+import android.util.Log
+import androidx.compose.runtime.Immutable
+import com.fasterxml.jackson.module.kotlin.readValue
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.DefaultReactions
+import com.vitorpamplona.amethyst.model.DefaultZapAmounts
+import com.vitorpamplona.amethyst.model.GLOBAL_FOLLOWS
+import com.vitorpamplona.amethyst.model.KIND3_FOLLOWS
+import com.vitorpamplona.amethyst.model.Settings
+import com.vitorpamplona.amethyst.service.Nip96MediaServers
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.ammolite.relays.RelaySetupInfo
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.crypto.KeyPair
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.encoders.Nip47WalletConnect
+import com.vitorpamplona.quartz.encoders.hexToByteArray
+import com.vitorpamplona.quartz.encoders.toHexKey
+import com.vitorpamplona.quartz.encoders.toNpub
+import com.vitorpamplona.quartz.events.AdvertisedRelayListEvent
+import com.vitorpamplona.quartz.events.ChatMessageRelayListEvent
+import com.vitorpamplona.quartz.events.ContactListEvent
+import com.vitorpamplona.quartz.events.Event
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.signers.ExternalSignerLauncher
+import com.vitorpamplona.quartz.signers.NostrSignerExternal
+import com.vitorpamplona.quartz.signers.NostrSignerInternal
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.withContext
+import java.io.File
+import java.util.Locale
+
+// Release mode (!BuildConfig.DEBUG) always uses encrypted preferences
+// To use plaintext SharedPreferences for debugging, set this to true
+// It will only apply in Debug builds
+private const val DEBUG_PLAINTEXT_PREFERENCES = false
+private const val DEBUG_PREFERENCES_NAME = "debug_prefs"
+
+@Immutable
+data class AccountInfo(
+    val npub: String,
+    val hasPrivKey: Boolean,
+    val loggedInWithExternalSigner: Boolean,
+)
+
+private object PrefKeys {
+    const val CURRENT_ACCOUNT = "currently_logged_in_account"
+    const val SAVED_ACCOUNTS = "all_saved_accounts"
+    const val NOSTR_PRIVKEY = "nostr_privkey"
+    const val NOSTR_PUBKEY = "nostr_pubkey"
+    const val RELAYS = "relays"
+    const val DONT_TRANSLATE_FROM = "dontTranslateFrom"
+    const val LOCAL_RELAY_SERVERS = "localRelayServers"
+    const val LANGUAGE_PREFS = "languagePreferences"
+    const val TRANSLATE_TO = "translateTo"
+    const val ZAP_AMOUNTS = "zapAmounts"
+    const val REACTION_CHOICES = "reactionChoices"
+    const val DEFAULT_ZAPTYPE = "defaultZapType"
+    const val DEFAULT_FILE_SERVER = "defaultFileServer"
+    const val DEFAULT_HOME_FOLLOW_LIST = "defaultHomeFollowList"
+    const val DEFAULT_STORIES_FOLLOW_LIST = "defaultStoriesFollowList"
+    const val DEFAULT_NOTIFICATION_FOLLOW_LIST = "defaultNotificationFollowList"
+    const val DEFAULT_DISCOVERY_FOLLOW_LIST = "defaultDiscoveryFollowList"
+    const val ZAP_PAYMENT_REQUEST_SERVER = "zapPaymentServer"
+    const val LATEST_CONTACT_LIST = "latestContactList"
+    const val LATEST_DM_RELAY_LIST = "latestDMRelayList"
+    const val LATEST_NIP65_RELAY_LIST = "latestNIP65RelayList"
+    const val HIDE_DELETE_REQUEST_DIALOG = "hide_delete_request_dialog"
+    const val HIDE_BLOCK_ALERT_DIALOG = "hide_block_alert_dialog"
+    const val HIDE_NIP_17_WARNING_DIALOG = "hide_nip24_warning_dialog" // delete later
+    const val USE_PROXY = "use_proxy"
+    const val PROXY_PORT = "proxy_port"
+    const val SHOW_SENSITIVE_CONTENT = "show_sensitive_content"
+    const val WARN_ABOUT_REPORTS = "warn_about_reports"
+    const val FILTER_SPAM_FROM_STRANGERS = "filter_spam_from_strangers"
+    const val LAST_READ_PER_ROUTE = "last_read_route_per_route"
+    const val LOGIN_WITH_EXTERNAL_SIGNER = "login_with_external_signer"
+    const val SIGNER_PACKAGE_NAME = "signer_package_name"
+    const val HAS_DONATED_IN_VERSION = "has_donated_in_version"
+    const val PENDING_ATTESTATIONS = "pending_attestations"
+
+    const val ALL_ACCOUNT_INFO = "all_saved_accounts_info"
+    const val SHARED_SETTINGS = "shared_settings"
+}
+
+object LocalPreferences {
+    private const val COMMA = ","
+
+    private var currentAccount: String? = null
+    private var savedAccounts: List<AccountInfo>? = null
+    private var cachedAccounts: MutableMap<String, Account?> = mutableMapOf()
+
+    suspend fun currentAccount(): String? {
+        if (currentAccount == null) {
+            currentAccount = encryptedPreferences().getString(PrefKeys.CURRENT_ACCOUNT, null)
+        }
+        return currentAccount
+    }
+
+    private fun updateCurrentAccount(npub: String?) {
+        if (npub == null) {
+            currentAccount = null
+            encryptedPreferences().edit().clear().apply()
+        } else if (currentAccount != npub) {
+            currentAccount = npub
+
+            encryptedPreferences().edit().apply { putString(PrefKeys.CURRENT_ACCOUNT, npub) }.apply()
+        }
+    }
+
+    private fun savedAccounts(): List<AccountInfo> {
+        if (savedAccounts == null) {
+            with(encryptedPreferences()) {
+                val newSystemOfAccounts =
+                    getString(PrefKeys.ALL_ACCOUNT_INFO, "[]")?.let {
+                        Event.mapper.readValue<List<AccountInfo>>(it)
+                    }
+
+                if (!newSystemOfAccounts.isNullOrEmpty()) {
+                    savedAccounts = newSystemOfAccounts
+                } else {
+                    val oldAccounts = getString(PrefKeys.SAVED_ACCOUNTS, null)?.split(COMMA) ?: listOf()
+
+                    val migrated =
+                        oldAccounts.map { npub ->
+                            AccountInfo(
+                                npub,
+                                encryptedPreferences(npub).getBoolean(PrefKeys.LOGIN_WITH_EXTERNAL_SIGNER, false),
+                                (encryptedPreferences(npub).getString(PrefKeys.NOSTR_PRIVKEY, "") ?: "")
+                                    .isNotBlank(),
+                            )
+                        }
+
+                    savedAccounts = migrated
+
+                    edit().apply { putString(PrefKeys.ALL_ACCOUNT_INFO, Event.mapper.writeValueAsString(savedAccounts)) }.apply()
+                }
+            }
+        }
+        return savedAccounts!!
+    }
+
+    private suspend fun updateSavedAccounts(accounts: List<AccountInfo>) =
+        withContext(Dispatchers.IO) {
+            if (savedAccounts != accounts) {
+                savedAccounts = accounts
+
+                encryptedPreferences()
+                    .edit()
+                    .apply { putString(PrefKeys.ALL_ACCOUNT_INFO, Event.mapper.writeValueAsString(accounts)) }
+                    .apply()
+            }
+        }
+
+    private val prefsDirPath: String
+        get() = "${Amethyst.instance.filesDir.parent}/shared_prefs/"
+
+    private suspend fun addAccount(accInfo: AccountInfo) {
+        val accounts = savedAccounts().filter { it.npub != accInfo.npub }.plus(accInfo)
+        updateSavedAccounts(accounts)
+    }
+
+    private suspend fun setCurrentAccount(account: Account) =
+        withContext(Dispatchers.IO) {
+            val npub = account.userProfile().pubkeyNpub()
+            val accInfo =
+                AccountInfo(
+                    npub,
+                    account.isWriteable(),
+                    account.signer is NostrSignerExternal,
+                )
+            updateCurrentAccount(npub)
+            addAccount(accInfo)
+        }
+
+    suspend fun switchToAccount(accountInfo: AccountInfo) = withContext(Dispatchers.IO) { updateCurrentAccount(accountInfo.npub) }
+
+    /** Removes the account from the app level shared preferences */
+    private suspend fun removeAccount(accountInfo: AccountInfo) {
+        val accounts = savedAccounts().filter { it.npub != accountInfo.npub }
+        updateSavedAccounts(accounts)
+    }
+
+    /** Deletes the npub-specific shared preference file */
+    private fun deleteUserPreferenceFile(npub: String) {
+        checkNotInMainThread()
+
+        val prefsDir = File(prefsDirPath)
+        prefsDir.list()?.forEach {
+            if (it.contains(npub)) {
+                File(prefsDir, it).delete()
+            }
+        }
+    }
+
+    private fun encryptedPreferences(npub: String? = null): SharedPreferences {
+        checkNotInMainThread()
+
+        return if (BuildConfig.DEBUG && DEBUG_PLAINTEXT_PREFERENCES) {
+            val preferenceFile =
+                if (npub == null) DEBUG_PREFERENCES_NAME else "${DEBUG_PREFERENCES_NAME}_$npub"
+            Amethyst.instance.getSharedPreferences(preferenceFile, Context.MODE_PRIVATE)
+        } else {
+            return Amethyst.instance.encryptedStorage(npub)
+        }
+    }
+
+    /**
+     * Clears the preferences for a given npub, deletes the preferences xml file, and switches the
+     * user to the first account in the list if it exists
+     *
+     * We need to use `commit()` to write changes to disk and release the file lock so that it can be
+     * deleted. If we use `apply()` there is a race condition and the file will probably not be
+     * deleted
+     */
+    @SuppressLint("ApplySharedPref")
+    suspend fun updatePrefsForLogout(accountInfo: AccountInfo) {
+        Log.d("LocalPreferences", "Saving to encrypted storage updatePrefsForLogout")
+        withContext(Dispatchers.IO) {
+            val userPrefs = encryptedPreferences(accountInfo.npub)
+            userPrefs.edit().clear().commit()
+            removeAccount(accountInfo)
+            deleteUserPreferenceFile(accountInfo.npub)
+
+            if (savedAccounts().isEmpty()) {
+                updateCurrentAccount(null)
+            } else if (currentAccount() == accountInfo.npub) {
+                updateCurrentAccount(savedAccounts().elementAt(0).npub)
+            }
+        }
+    }
+
+    suspend fun updatePrefsForLogin(account: Account) {
+        setCurrentAccount(account)
+        saveToEncryptedStorage(account)
+    }
+
+    fun allSavedAccounts(): List<AccountInfo> = savedAccounts()
+
+    suspend fun saveToEncryptedStorage(account: Account) {
+        Log.d("LocalPreferences", "Saving to encrypted storage")
+        withContext(Dispatchers.IO) {
+            checkNotInMainThread()
+
+            val prefs = encryptedPreferences(account.userProfile().pubkeyNpub())
+            prefs
+                .edit()
+                .apply {
+                    putBoolean(PrefKeys.LOGIN_WITH_EXTERNAL_SIGNER, account.signer is NostrSignerExternal)
+                    if (account.signer is NostrSignerExternal) {
+                        remove(PrefKeys.NOSTR_PRIVKEY)
+                        putString(PrefKeys.SIGNER_PACKAGE_NAME, account.signer.launcher.signerPackageName)
+                    } else {
+                        account.keyPair.privKey?.let { putString(PrefKeys.NOSTR_PRIVKEY, it.toHexKey()) }
+                    }
+                    account.keyPair.pubKey.let { putString(PrefKeys.NOSTR_PUBKEY, it.toHexKey()) }
+                    putString(PrefKeys.RELAYS, Event.mapper.writeValueAsString(account.localRelays))
+                    putStringSet(PrefKeys.DONT_TRANSLATE_FROM, account.dontTranslateFrom)
+                    putStringSet(PrefKeys.LOCAL_RELAY_SERVERS, account.localRelayServers)
+                    putString(
+                        PrefKeys.LANGUAGE_PREFS,
+                        Event.mapper.writeValueAsString(account.languagePreferences),
+                    )
+                    putString(PrefKeys.TRANSLATE_TO, account.translateTo)
+                    putString(PrefKeys.ZAP_AMOUNTS, Event.mapper.writeValueAsString(account.zapAmountChoices))
+                    putString(
+                        PrefKeys.REACTION_CHOICES,
+                        Event.mapper.writeValueAsString(account.reactionChoices),
+                    )
+                    putString(PrefKeys.DEFAULT_ZAPTYPE, account.defaultZapType.name)
+                    putString(
+                        PrefKeys.DEFAULT_FILE_SERVER,
+                        Event.mapper.writeValueAsString(account.defaultFileServer),
+                    )
+                    putString(PrefKeys.DEFAULT_HOME_FOLLOW_LIST, account.defaultHomeFollowList.value)
+                    putString(PrefKeys.DEFAULT_STORIES_FOLLOW_LIST, account.defaultStoriesFollowList.value)
+                    putString(
+                        PrefKeys.DEFAULT_NOTIFICATION_FOLLOW_LIST,
+                        account.defaultNotificationFollowList.value,
+                    )
+                    putString(
+                        PrefKeys.DEFAULT_DISCOVERY_FOLLOW_LIST,
+                        account.defaultDiscoveryFollowList.value,
+                    )
+                    putString(
+                        PrefKeys.ZAP_PAYMENT_REQUEST_SERVER,
+                        Event.mapper.writeValueAsString(account.zapPaymentRequest),
+                    )
+                    if (account.backupContactList != null) {
+                        putString(
+                            PrefKeys.LATEST_CONTACT_LIST,
+                            Event.mapper.writeValueAsString(account.backupContactList),
+                        )
+                    } else {
+                        remove(PrefKeys.LATEST_CONTACT_LIST)
+                    }
+
+                    if (account.backupDMRelayList != null) {
+                        putString(
+                            PrefKeys.LATEST_DM_RELAY_LIST,
+                            Event.mapper.writeValueAsString(account.backupDMRelayList),
+                        )
+                    } else {
+                        remove(PrefKeys.LATEST_DM_RELAY_LIST)
+                    }
+
+                    if (account.backupNIP65RelayList != null) {
+                        putString(
+                            PrefKeys.LATEST_NIP65_RELAY_LIST,
+                            Event.mapper.writeValueAsString(account.backupNIP65RelayList),
+                        )
+                    } else {
+                        remove(PrefKeys.LATEST_NIP65_RELAY_LIST)
+                    }
+
+                    putBoolean(PrefKeys.HIDE_DELETE_REQUEST_DIALOG, account.hideDeleteRequestDialog)
+                    putBoolean(PrefKeys.HIDE_NIP_17_WARNING_DIALOG, account.hideNIP17WarningDialog)
+                    putBoolean(PrefKeys.HIDE_BLOCK_ALERT_DIALOG, account.hideBlockAlertDialog)
+                    putBoolean(PrefKeys.USE_PROXY, account.proxy != null)
+                    putInt(PrefKeys.PROXY_PORT, account.proxyPort)
+                    putBoolean(PrefKeys.WARN_ABOUT_REPORTS, account.warnAboutPostsWithReports)
+                    putBoolean(PrefKeys.FILTER_SPAM_FROM_STRANGERS, account.filterSpamFromStrangers)
+                    putString(
+                        PrefKeys.LAST_READ_PER_ROUTE,
+                        Event.mapper.writeValueAsString(account.lastReadPerRoute),
+                    )
+                    putStringSet(PrefKeys.HAS_DONATED_IN_VERSION, account.hasDonatedInVersion)
+
+                    if (account.showSensitiveContent.value == null) {
+                        remove(PrefKeys.SHOW_SENSITIVE_CONTENT)
+                    } else {
+                        putBoolean(PrefKeys.SHOW_SENSITIVE_CONTENT, account.showSensitiveContent.value!!)
+                    }
+
+                    putString(
+                        PrefKeys.PENDING_ATTESTATIONS,
+                        Event.mapper.writeValueAsString(account.pendingAttestations.value),
+                    )
+                }.apply()
+        }
+    }
+
+    suspend fun loadCurrentAccountFromEncryptedStorage(): Account? = currentAccount()?.let { loadCurrentAccountFromEncryptedStorage(it) }
+
+    suspend fun saveSharedSettings(
+        sharedSettings: Settings,
+        prefs: SharedPreferences = encryptedPreferences(),
+    ) {
+        Log.d("LocalPreferences", "Saving to shared settings")
+        with(prefs.edit()) {
+            putString(PrefKeys.SHARED_SETTINGS, Event.mapper.writeValueAsString(sharedSettings))
+            apply()
+        }
+    }
+
+    suspend fun loadSharedSettings(prefs: SharedPreferences = encryptedPreferences()): Settings? {
+        Log.d("LocalPreferences", "Load shared settings")
+        with(prefs) {
+            return try {
+                getString(PrefKeys.SHARED_SETTINGS, "{}")?.let { Event.mapper.readValue<Settings>(it) }
+            } catch (e: Throwable) {
+                if (e is CancellationException) throw e
+                Log.w(
+                    "LocalPreferences",
+                    "Unable to decode shared preferences: ${getString(PrefKeys.SHARED_SETTINGS, null)}",
+                    e,
+                )
+                e.printStackTrace()
+                null
+            }
+        }
+    }
+
+    val mutex = Mutex()
+
+    suspend fun loadCurrentAccountFromEncryptedStorage(npub: String): Account? =
+        withContext(Dispatchers.IO) {
+            mutex.withLock {
+                if (cachedAccounts.containsKey(npub)) {
+                    return@withContext cachedAccounts.get(npub)
+                }
+
+                val account = innerLoadCurrentAccountFromEncryptedStorage(npub)
+                account?.registerObservers()
+
+                cachedAccounts.put(npub, account)
+
+                return@withContext account
+            }
+        }
+
+    suspend fun innerLoadCurrentAccountFromEncryptedStorage(npub: String?): Account? {
+        Log.d("LocalPreferences", "Load account from file")
+
+        return withContext(Dispatchers.IO) {
+            checkNotInMainThread()
+
+            return@withContext with(encryptedPreferences(npub)) {
+                val pubKey = getString(PrefKeys.NOSTR_PUBKEY, null) ?: return@with null
+                val loginWithExternalSigner = getBoolean(PrefKeys.LOGIN_WITH_EXTERNAL_SIGNER, false)
+                val privKey = if (loginWithExternalSigner) null else getString(PrefKeys.NOSTR_PRIVKEY, null)
+
+                val localRelays =
+                    getString(PrefKeys.RELAYS, "[]")?.let {
+                        println("LocalRelays: $it")
+                        Event.mapper.readValue<Set<RelaySetupInfo>?>(it)
+                    }
+                        ?: setOf<RelaySetupInfo>()
+
+                val dontTranslateFrom = getStringSet(PrefKeys.DONT_TRANSLATE_FROM, null) ?: setOf()
+                val localRelayServers = getStringSet(PrefKeys.LOCAL_RELAY_SERVERS, null) ?: setOf()
+                val translateTo = getString(PrefKeys.TRANSLATE_TO, null) ?: Locale.getDefault().language
+                val defaultHomeFollowList =
+                    getString(PrefKeys.DEFAULT_HOME_FOLLOW_LIST, null) ?: KIND3_FOLLOWS
+                val defaultStoriesFollowList =
+                    getString(PrefKeys.DEFAULT_STORIES_FOLLOW_LIST, null) ?: GLOBAL_FOLLOWS
+                val defaultNotificationFollowList =
+                    getString(PrefKeys.DEFAULT_NOTIFICATION_FOLLOW_LIST, null) ?: GLOBAL_FOLLOWS
+                val defaultDiscoveryFollowList =
+                    getString(PrefKeys.DEFAULT_DISCOVERY_FOLLOW_LIST, null) ?: GLOBAL_FOLLOWS
+
+                val zapAmountChoices =
+                    getString(PrefKeys.ZAP_AMOUNTS, "[]")
+                        ?.let { Event.mapper.readValue<List<Long>?>(it) }
+                        ?.ifEmpty { DefaultZapAmounts }
+                        ?: DefaultZapAmounts
+
+                val reactionChoices =
+                    getString(PrefKeys.REACTION_CHOICES, "[]")
+                        ?.let { Event.mapper.readValue<List<String>?>(it) }
+                        ?.ifEmpty { DefaultReactions }
+                        ?: DefaultReactions
+
+                val defaultZapType =
+                    getString(PrefKeys.DEFAULT_ZAPTYPE, "")?.let { serverName ->
+                        LnZapEvent.ZapType.values().firstOrNull { it.name == serverName }
+                    }
+                        ?: LnZapEvent.ZapType.PUBLIC
+
+                val defaultFileServer =
+                    try {
+                        getString(PrefKeys.DEFAULT_FILE_SERVER, "")?.let { serverName ->
+                            Event.mapper.readValue<Nip96MediaServers.ServerName>(serverName)
+                        }
+                            ?: Nip96MediaServers.DEFAULT[0]
+                    } catch (e: Exception) {
+                        if (e is CancellationException) throw e
+                        Log.w("LocalPreferences", "Failed to decode saved File Server", e)
+                        e.printStackTrace()
+                        Nip96MediaServers.DEFAULT[0]
+                    }
+
+                val zapPaymentRequestServer =
+                    try {
+                        getString(PrefKeys.ZAP_PAYMENT_REQUEST_SERVER, null)?.let {
+                            Event.mapper.readValue<Nip47WalletConnect.Nip47URI?>(it)
+                        }
+                    } catch (e: Throwable) {
+                        if (e is CancellationException) throw e
+                        Log.w(
+                            "LocalPreferences",
+                            "Error Decoding Zap Payment Request Server ${getString(PrefKeys.ZAP_PAYMENT_REQUEST_SERVER, null)}",
+                            e,
+                        )
+                        e.printStackTrace()
+                        null
+                    }
+
+                val latestContactList =
+                    try {
+                        getString(PrefKeys.LATEST_CONTACT_LIST, null)?.let {
+                            if (it != "null") {
+                                println("Decoding Contact List: $it")
+                                Event.fromJson(it) as ContactListEvent?
+                            } else {
+                                null
+                            }
+                        }
+                    } catch (e: Throwable) {
+                        if (e is CancellationException) throw e
+                        Log.w(
+                            "LocalPreferences",
+                            "Error Decoding Contact List ${getString(PrefKeys.LATEST_CONTACT_LIST, null)}",
+                            e,
+                        )
+                        null
+                    }
+
+                val latestDmRelayList =
+                    try {
+                        getString(PrefKeys.LATEST_DM_RELAY_LIST, null)?.let {
+                            if (it != "null") {
+                                println("Decoding DM Relay List: $it")
+                                Event.fromJson(it) as ChatMessageRelayListEvent?
+                            } else {
+                                null
+                            }
+                        }
+                    } catch (e: Throwable) {
+                        if (e is CancellationException) throw e
+                        Log.w(
+                            "LocalPreferences",
+                            "Error Decoding DM Relay List ${getString(PrefKeys.LATEST_DM_RELAY_LIST, null)}",
+                            e,
+                        )
+                        null
+                    }
+
+                val latestNip65RelayList =
+                    try {
+                        getString(PrefKeys.LATEST_NIP65_RELAY_LIST, null)?.let {
+                            if (it != "null") {
+                                println("Decoding NIP65 Relay List: $it")
+                                Event.fromJson(it) as AdvertisedRelayListEvent?
+                            } else {
+                                null
+                            }
+                        }
+                    } catch (e: Throwable) {
+                        if (e is CancellationException) throw e
+                        Log.w(
+                            "LocalPreferences",
+                            "Error Decoding NIP65 Relay List ${getString(PrefKeys.LATEST_NIP65_RELAY_LIST, null)}",
+                            e,
+                        )
+                        null
+                    }
+
+                val pendingAttestations =
+                    try {
+                        getString(PrefKeys.PENDING_ATTESTATIONS, null)?.let {
+                            println("Decoding Attestation List: " + it)
+                            if (it != null) {
+                                Event.mapper.readValue<Map<HexKey, String>>(it)
+                            } else {
+                                null
+                            }
+                        }
+                    } catch (e: Throwable) {
+                        if (e is CancellationException) throw e
+                        Log.w(
+                            "LocalPreferences",
+                            "Error Decoding Contact List ${getString(PrefKeys.PENDING_ATTESTATIONS, null)}",
+                            e,
+                        )
+                        null
+                    }
+
+                val languagePreferences =
+                    try {
+                        getString(PrefKeys.LANGUAGE_PREFS, null)?.let {
+                            Event.mapper.readValue<Map<String, String>?>(it)
+                        }
+                            ?: mapOf()
+                    } catch (e: Throwable) {
+                        if (e is CancellationException) throw e
+                        Log.w(
+                            "LocalPreferences",
+                            "Error Decoding Language Preferences ${getString(PrefKeys.LANGUAGE_PREFS, null)}",
+                            e,
+                        )
+                        e.printStackTrace()
+                        mapOf()
+                    }
+
+                val hideDeleteRequestDialog = getBoolean(PrefKeys.HIDE_DELETE_REQUEST_DIALOG, false)
+                val hideBlockAlertDialog = getBoolean(PrefKeys.HIDE_BLOCK_ALERT_DIALOG, false)
+                val hideNIP17WarningDialog = getBoolean(PrefKeys.HIDE_NIP_17_WARNING_DIALOG, false)
+                val useProxy = getBoolean(PrefKeys.USE_PROXY, false)
+                val proxyPort = getInt(PrefKeys.PROXY_PORT, 9050)
+                val proxy = HttpClientManager.initProxy(useProxy, "127.0.0.1", proxyPort)
+
+                val showSensitiveContent =
+                    if (contains(PrefKeys.SHOW_SENSITIVE_CONTENT)) {
+                        getBoolean(PrefKeys.SHOW_SENSITIVE_CONTENT, false)
+                    } else {
+                        null
+                    }
+                val filterSpam = getBoolean(PrefKeys.FILTER_SPAM_FROM_STRANGERS, true)
+                val warnAboutReports = getBoolean(PrefKeys.WARN_ABOUT_REPORTS, true)
+
+                val lastReadPerRoute =
+                    try {
+                        getString(PrefKeys.LAST_READ_PER_ROUTE, null)?.let {
+                            Event.mapper.readValue<Map<String, Long>?>(it)
+                        }
+                            ?: mapOf()
+                    } catch (e: Throwable) {
+                        if (e is CancellationException) throw e
+                        Log.w(
+                            "LocalPreferences",
+                            "Error Decoding Last Read per route ${getString(PrefKeys.LAST_READ_PER_ROUTE, null)}",
+                            e,
+                        )
+                        e.printStackTrace()
+                        mapOf()
+                    }
+
+                val keyPair = KeyPair(privKey = privKey?.hexToByteArray(), pubKey = pubKey.hexToByteArray())
+                val signer =
+                    if (loginWithExternalSigner) {
+                        val packageName =
+                            getString(PrefKeys.SIGNER_PACKAGE_NAME, null) ?: "com.greenart7c3.nostrsigner"
+                        NostrSignerExternal(
+                            pubKey,
+                            ExternalSignerLauncher(pubKey.hexToByteArray().toNpub(), packageName),
+                        )
+                    } else {
+                        NostrSignerInternal(keyPair)
+                    }
+
+                val hasDonatedInVersion = getStringSet(PrefKeys.HAS_DONATED_IN_VERSION, null) ?: setOf()
+
+                val account =
+                    Account(
+                        keyPair = keyPair,
+                        signer = signer,
+                        localRelays = localRelays,
+                        localRelayServers = localRelayServers,
+                        dontTranslateFrom = dontTranslateFrom,
+                        languagePreferences = languagePreferences,
+                        translateTo = translateTo,
+                        zapAmountChoices = zapAmountChoices,
+                        reactionChoices = reactionChoices,
+                        defaultZapType = defaultZapType,
+                        defaultFileServer = defaultFileServer,
+                        defaultHomeFollowList = MutableStateFlow(defaultHomeFollowList),
+                        defaultStoriesFollowList = MutableStateFlow(defaultStoriesFollowList),
+                        defaultNotificationFollowList = MutableStateFlow(defaultNotificationFollowList),
+                        defaultDiscoveryFollowList = MutableStateFlow(defaultDiscoveryFollowList),
+                        zapPaymentRequest = zapPaymentRequestServer,
+                        hideDeleteRequestDialog = hideDeleteRequestDialog,
+                        hideBlockAlertDialog = hideBlockAlertDialog,
+                        hideNIP17WarningDialog = hideNIP17WarningDialog,
+                        backupContactList = latestContactList,
+                        backupNIP65RelayList = latestNip65RelayList,
+                        backupDMRelayList = latestDmRelayList,
+                        proxy = proxy,
+                        proxyPort = proxyPort,
+                        showSensitiveContent = MutableStateFlow(showSensitiveContent),
+                        warnAboutPostsWithReports = warnAboutReports,
+                        filterSpamFromStrangers = filterSpam,
+                        lastReadPerRoute = lastReadPerRoute,
+                        hasDonatedInVersion = hasDonatedInVersion,
+                        pendingAttestations = MutableStateFlow(pendingAttestations ?: emptyMap()),
+                    )
+
+                // Loads from DB
+                account.userProfile()
+
+                withContext(Dispatchers.Main) {
+                    // Loads Live Objects
+                    account.userProfile().live()
+                }
+
+                return@with account
+            }
+        }
+    }
+}
@@ -0,0 +1,252 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst
+
+import android.os.Build
+import android.util.Log
+import androidx.compose.runtime.Stable
+import coil.Coil
+import coil.decode.GifDecoder
+import coil.decode.ImageDecoderDecoder
+import coil.decode.SvgDecoder
+import coil.size.Precision
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.service.NostrAccountDataSource
+import com.vitorpamplona.amethyst.service.NostrChannelDataSource
+import com.vitorpamplona.amethyst.service.NostrChatroomDataSource
+import com.vitorpamplona.amethyst.service.NostrChatroomListDataSource
+import com.vitorpamplona.amethyst.service.NostrCommunityDataSource
+import com.vitorpamplona.amethyst.service.NostrDiscoveryDataSource
+import com.vitorpamplona.amethyst.service.NostrGeohashDataSource
+import com.vitorpamplona.amethyst.service.NostrHashtagDataSource
+import com.vitorpamplona.amethyst.service.NostrHomeDataSource
+import com.vitorpamplona.amethyst.service.NostrSearchEventOrUserDataSource
+import com.vitorpamplona.amethyst.service.NostrSingleChannelDataSource
+import com.vitorpamplona.amethyst.service.NostrSingleEventDataSource
+import com.vitorpamplona.amethyst.service.NostrSingleUserDataSource
+import com.vitorpamplona.amethyst.service.NostrThreadDataSource
+import com.vitorpamplona.amethyst.service.NostrUserProfileDataSource
+import com.vitorpamplona.amethyst.service.NostrVideoDataSource
+import com.vitorpamplona.ammolite.relays.Client
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.encoders.bechToBytes
+import com.vitorpamplona.quartz.encoders.decodePublicKeyAsHexOrNull
+import com.vitorpamplona.quartz.encoders.toHexKey
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
+
+@Stable
+class ServiceManager {
+    private var isStarted: Boolean =
+        false // to not open amber in a loop trying to use auth relays and registering for notifications
+    private var account: Account? = null
+
+    private val scope = CoroutineScope(Dispatchers.IO + SupervisorJob())
+    private var collectorJob: Job? = null
+
+    private fun start(account: Account) {
+        this.account = account
+        start()
+    }
+
+    private fun start() {
+        Log.d("ServiceManager", "Pre Starting Relay Services $isStarted $account")
+        if (isStarted && account != null) {
+            return
+        }
+        Log.d("ServiceManager", "Starting Relay Services")
+
+        val myAccount = account
+
+        // Resets Proxy Use
+        HttpClientManager.setDefaultProxy(account?.proxy)
+        HttpClientManager.setDefaultUserAgent("Amethyst/${BuildConfig.VERSION_NAME}")
+        LocalCache.antiSpam.active = account?.filterSpamFromStrangers ?: true
+        Coil.setImageLoader {
+            Amethyst.instance
+                .imageLoaderBuilder()
+                .components {
+                    if (Build.VERSION.SDK_INT >= 28) {
+                        add(ImageDecoderDecoder.Factory())
+                    } else {
+                        add(GifDecoder.Factory())
+                    }
+                    add(SvgDecoder.Factory())
+                } // .logger(DebugLogger())
+                .okHttpClient { HttpClientManager.getHttpClient() }
+                .precision(Precision.INEXACT)
+                .respectCacheHeaders(false)
+                .build()
+        }
+
+        if (myAccount != null) {
+            val relaySet = myAccount.connectToRelays.value
+            Log.d("Relay", "Service Manager Connect Connecting ${relaySet.size}")
+            Client.reconnect(relaySet)
+
+            collectorJob?.cancel()
+            collectorJob = null
+            collectorJob =
+                scope.launch {
+                    myAccount.connectToRelaysFlow.collectLatest {
+                        delay(500)
+                        if (isStarted) {
+                            Client.reconnect(it, onlyIfChanged = true)
+                        }
+                    }
+                }
+
+            // start services
+            NostrAccountDataSource.account = myAccount
+            NostrAccountDataSource.otherAccounts =
+                LocalPreferences.allSavedAccounts().mapNotNull {
+                    try {
+                        it.npub.bechToBytes().toHexKey()
+                    } catch (e: Exception) {
+                        if (e is CancellationException) throw e
+                        null
+                    }
+                }
+            NostrHomeDataSource.account = myAccount
+            NostrChatroomListDataSource.account = myAccount
+            NostrVideoDataSource.account = myAccount
+            NostrDiscoveryDataSource.account = myAccount
+
+            // Notification Elements
+            NostrHomeDataSource.start()
+            NostrAccountDataSource.start()
+            GlobalScope.launch(Dispatchers.IO) {
+                delay(3000)
+                NostrChatroomListDataSource.start()
+                NostrDiscoveryDataSource.start()
+                NostrVideoDataSource.start()
+            }
+
+            // More Info Data Sources
+            NostrSingleEventDataSource.start()
+            NostrSingleChannelDataSource.start()
+            NostrSingleUserDataSource.start()
+            isStarted = true
+        }
+    }
+
+    private fun pause() {
+        Log.d("ServiceManager", "Pausing Relay Services")
+
+        collectorJob?.cancel()
+        collectorJob = null
+
+        NostrAccountDataSource.stopSync()
+        NostrHomeDataSource.stopSync()
+        NostrChannelDataSource.stopSync()
+        NostrChatroomDataSource.stopSync()
+        NostrChatroomListDataSource.stopSync()
+        NostrDiscoveryDataSource.stopSync()
+
+        NostrCommunityDataSource.stopSync()
+        NostrHashtagDataSource.stopSync()
+        NostrGeohashDataSource.stopSync()
+        NostrSearchEventOrUserDataSource.stopSync()
+        NostrSingleChannelDataSource.stopSync()
+        NostrSingleEventDataSource.stopSync()
+        NostrSingleUserDataSource.stopSync()
+        NostrThreadDataSource.stopSync()
+        NostrUserProfileDataSource.stopSync()
+        NostrVideoDataSource.stopSync()
+
+        Client.reconnect(null)
+        isStarted = false
+    }
+
+    fun cleanObservers() {
+        LocalCache.cleanObservers()
+    }
+
+    fun trimMemory() {
+        LocalCache.cleanObservers()
+
+        val accounts =
+            LocalPreferences.allSavedAccounts().mapNotNull { decodePublicKeyAsHexOrNull(it.npub) }.toSet()
+
+        account?.let {
+            LocalCache.pruneOldAndHiddenMessages(it)
+            NostrChatroomDataSource.clearEOSEs(it)
+
+            LocalCache.pruneHiddenMessages(it)
+            LocalCache.pruneContactLists(accounts)
+            LocalCache.pruneRepliesAndReactions(accounts)
+            LocalCache.prunePastVersionsOfReplaceables()
+            LocalCache.pruneExpiredEvents()
+        }
+    }
+
+    // This method keeps the pause/start in a Syncronized block to
+    // avoid concurrent pauses and starts.
+    @Synchronized
+    fun forceRestart(
+        account: Account? = null,
+        start: Boolean = true,
+        pause: Boolean = true,
+    ) {
+        if (pause) {
+            pause()
+        }
+
+        if (start) {
+            if (account != null) {
+                start(account)
+            } else {
+                start()
+            }
+        }
+    }
+
+    fun restartIfDifferentAccount(account: Account) {
+        if (this.account != account) {
+            forceRestart(account, true, true)
+        }
+    }
+
+    fun forceRestart() {
+        forceRestart(null, true, true)
+    }
+
+    fun justStart() {
+        forceRestart(null, true, false)
+    }
+
+    fun pauseForGood() {
+        forceRestart(null, false, true)
+    }
+
+    fun pauseForGoodAndClearAccount() {
+        account = null
+        forceRestart(null, false, true)
+    }
+}
@@ -0,0 +1,129 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import android.util.Log
+import android.util.LruCache
+import androidx.compose.runtime.Stable
+import androidx.lifecycle.LiveData
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.ammolite.relays.BundledUpdate
+import com.vitorpamplona.ammolite.relays.Relay
+import com.vitorpamplona.ammolite.relays.RelayStats
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.encoders.Nip19Bech32
+import com.vitorpamplona.quartz.events.Event
+import kotlinx.coroutines.Dispatchers
+
+data class Spammer(val pubkeyHex: HexKey, var duplicatedMessages: Set<HexKey>)
+
+class AntiSpamFilter {
+    val recentMessages = LruCache<Int, String>(1000)
+    val spamMessages = LruCache<Int, Spammer>(1000)
+
+    var active: Boolean = true
+
+    fun isSpam(
+        event: Event,
+        relay: Relay?,
+    ): Boolean {
+        checkNotInMainThread()
+
+        if (!active) return false
+
+        val idHex = event.id
+
+        // if short message, ok
+        // The idea here is to avoid considering repeated "GM" messages spam.
+        if (event.content.length < 50) return false
+
+        // if the message is actually short but because it cites a user/event, the nostr: string is
+        // really long, make it ok.
+        // The idea here is to avoid considering repeated "@Bot, command" messages spam, while still
+        // blocking repeated "lnbc..." invoices or fishing urls
+        if (event.content.length < 180 && Nip19Bech32.nip19regex.matcher(event.content).find()) return false
+
+        // double list strategy:
+        // if duplicated, it goes into spam. 1000 spam messages are saved into the spam list.
+
+        // Considers tags so that same replies to different people don't count.
+        val hash = (event.content + event.tags.flatten().joinToString(",")).hashCode()
+
+        if (
+            (recentMessages[hash] != null && recentMessages[hash] != idHex) || spamMessages[hash] != null
+        ) {
+            Log.w(
+                "Potential SPAM Message",
+                "${event.id} ${recentMessages[hash]} ${spamMessages[hash] != null} ${relay?.url} ${event.content.replace("\n", " | ")}",
+            )
+
+            // Log down offenders
+            logOffender(hash, event)
+
+            if (relay != null) {
+                RelayStats.newSpam(relay.url, "https://njump.me/${Nip19Bech32.createNEvent(event.id, event.pubKey, event.kind, relay.url)}")
+            }
+
+            liveSpam.invalidateData()
+
+            return true
+        }
+
+        recentMessages.put(hash, idHex)
+
+        return false
+    }
+
+    @Synchronized
+    private fun logOffender(
+        hashCode: Int,
+        event: Event,
+    ) {
+        if (spamMessages.get(hashCode) == null) {
+            spamMessages.put(hashCode, Spammer(event.pubKey, setOf(recentMessages[hashCode], event.id)))
+        } else {
+            val spammer = spamMessages.get(hashCode)
+            spammer.duplicatedMessages += event.id
+        }
+    }
+
+    val liveSpam: AntiSpamLiveData = AntiSpamLiveData(this)
+}
+
+@Stable
+class AntiSpamLiveData(val cache: AntiSpamFilter) : LiveData<AntiSpamState>(AntiSpamState(cache)) {
+    // Refreshes observers in batches.
+    private val bundler = BundledUpdate(300, Dispatchers.IO)
+
+    fun invalidateData() {
+        checkNotInMainThread()
+
+        bundler.invalidate {
+            checkNotInMainThread()
+
+            if (hasActiveObservers()) {
+                postValue(AntiSpamState(cache))
+            }
+        }
+    }
+}
+
+class AntiSpamState(val cache: AntiSpamFilter)
@@ -0,0 +1,211 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import androidx.compose.runtime.Stable
+import androidx.lifecycle.LiveData
+import com.vitorpamplona.amethyst.commons.data.LargeCache
+import com.vitorpamplona.amethyst.service.NostrSingleChannelDataSource
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.amethyst.ui.dal.DefaultFeedOrder
+import com.vitorpamplona.amethyst.ui.note.toShortenHex
+import com.vitorpamplona.ammolite.relays.BundledUpdate
+import com.vitorpamplona.quartz.encoders.ATag
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.encoders.toNote
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesEvent
+import kotlinx.coroutines.Dispatchers
+
+@Stable
+class PublicChatChannel(idHex: String) : Channel(idHex) {
+    var info = ChannelCreateEvent.ChannelData(null, null, null)
+
+    fun updateChannelInfo(
+        creator: User,
+        channelInfo: ChannelCreateEvent.ChannelData,
+        updatedAt: Long,
+    ) {
+        this.info = channelInfo
+        super.updateChannelInfo(creator, updatedAt)
+    }
+
+    override fun toBestDisplayName(): String {
+        return info.name ?: super.toBestDisplayName()
+    }
+
+    override fun summary(): String? {
+        return info.about
+    }
+
+    override fun profilePicture(): String? {
+        if (info.picture.isNullOrBlank()) return super.profilePicture()
+        return info.picture ?: super.profilePicture()
+    }
+
+    override fun anyNameStartsWith(prefix: String): Boolean {
+        return listOfNotNull(info.name, info.about).filter { it.contains(prefix, true) }.isNotEmpty()
+    }
+}
+
+@Stable
+class LiveActivitiesChannel(val address: ATag) : Channel(address.toTag()) {
+    var info: LiveActivitiesEvent? = null
+
+    override fun idNote() = address.toNAddr()
+
+    override fun idDisplayNote() = idNote().toShortenHex()
+
+    fun address() = address
+
+    fun updateChannelInfo(
+        creator: User,
+        channelInfo: LiveActivitiesEvent,
+        updatedAt: Long,
+    ) {
+        this.info = channelInfo
+        super.updateChannelInfo(creator, updatedAt)
+    }
+
+    override fun toBestDisplayName(): String {
+        return info?.title() ?: super.toBestDisplayName()
+    }
+
+    override fun summary(): String? {
+        return info?.summary()
+    }
+
+    override fun profilePicture(): String? {
+        return info?.image()?.ifBlank { null }
+    }
+
+    override fun anyNameStartsWith(prefix: String): Boolean {
+        return listOfNotNull(info?.title(), info?.summary())
+            .filter { it.contains(prefix, true) }
+            .isNotEmpty()
+    }
+}
+
+@Stable
+abstract class Channel(val idHex: String) {
+    var creator: User? = null
+    var updatedMetadataAt: Long = 0
+    val notes = LargeCache<HexKey, Note>()
+    var lastNoteCreatedAt: Long = 0
+
+    open fun id() = Hex.decode(idHex)
+
+    open fun idNote() = id().toNote()
+
+    open fun idDisplayNote() = idNote().toShortenHex()
+
+    open fun toBestDisplayName(): String {
+        return idDisplayNote()
+    }
+
+    open fun summary(): String? {
+        return null
+    }
+
+    open fun creatorName(): String? {
+        return creator?.toBestDisplayName()
+    }
+
+    open fun profilePicture(): String? {
+        return creator?.info?.banner
+    }
+
+    open fun updateChannelInfo(
+        creator: User,
+        updatedAt: Long,
+    ) {
+        this.creator = creator
+        this.updatedMetadataAt = updatedAt
+
+        live.invalidateData()
+    }
+
+    fun addNote(note: Note) {
+        notes.put(note.idHex, note)
+
+        if ((note.createdAt() ?: 0) > lastNoteCreatedAt) {
+            lastNoteCreatedAt = note.createdAt() ?: 0
+        }
+    }
+
+    fun removeNote(note: Note) {
+        notes.remove(note.idHex)
+    }
+
+    fun removeNote(noteHex: String) {
+        notes.remove(noteHex)
+    }
+
+    abstract fun anyNameStartsWith(prefix: String): Boolean
+
+    // Observers line up here.
+    val live: ChannelLiveData = ChannelLiveData(this)
+
+    fun pruneOldAndHiddenMessages(account: Account): Set<Note> {
+        val important =
+            notes.filter { key, it ->
+                it.author?.let { author -> account.isHidden(author) } == false
+            }
+                .sortedWith(DefaultFeedOrder)
+                .take(500)
+                .toSet()
+
+        val toBeRemoved = notes.filter { key, it -> it !in important }
+
+        toBeRemoved.forEach { notes.remove(it.idHex) }
+
+        return toBeRemoved.toSet()
+    }
+}
+
+class ChannelLiveData(val channel: Channel) : LiveData<ChannelState>(ChannelState(channel)) {
+    // Refreshes observers in batches.
+    private val bundler = BundledUpdate(300, Dispatchers.IO)
+
+    fun invalidateData() {
+        checkNotInMainThread()
+
+        bundler.invalidate {
+            checkNotInMainThread()
+            if (hasActiveObservers()) {
+                postValue(ChannelState(channel))
+            }
+        }
+    }
+
+    override fun onActive() {
+        super.onActive()
+        NostrSingleChannelDataSource.add(channel)
+    }
+
+    override fun onInactive() {
+        super.onInactive()
+        NostrSingleChannelDataSource.remove(channel)
+    }
+}
+
+class ChannelState(val channel: Channel)
@@ -0,0 +1,95 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import androidx.compose.runtime.Stable
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.utils.TimeUtils
+
+@Stable
+class Chatroom() {
+    var authors: Set<User> = setOf()
+    var roomMessages: Set<Note> = setOf()
+    var subject: String? = null
+    var subjectCreatedAt: Long? = null
+
+    @Synchronized
+    fun addMessageSync(msg: Note) {
+        checkNotInMainThread()
+
+        if (msg !in roomMessages) {
+            roomMessages = roomMessages + msg
+
+            msg.author?.let { author ->
+                if (author !in authors) {
+                    authors += author
+                }
+            }
+
+            val newSubject = msg.event?.subject()
+
+            if (newSubject != null && (msg.createdAt() ?: 0) > (subjectCreatedAt ?: 0)) {
+                subject = newSubject
+                subjectCreatedAt = msg.createdAt()
+            }
+        }
+    }
+
+    @Synchronized
+    fun removeMessageSync(msg: Note) {
+        checkNotInMainThread()
+
+        if (msg in roomMessages) {
+            roomMessages = roomMessages - msg
+
+            roomMessages
+                .filter { it.event?.subject() != null }
+                .sortedBy { it.createdAt() }
+                .lastOrNull()
+                ?.let {
+                    subject = it.event?.subject()
+                    subjectCreatedAt = it.createdAt()
+                }
+        }
+    }
+
+    fun senderIntersects(keySet: Set<HexKey>): Boolean {
+        return authors.any { it.pubkeyHex in keySet }
+    }
+
+    fun pruneMessagesToTheLatestOnly(): Set<Note> {
+        val sorted = roomMessages.sortedWith(compareBy({ it.createdAt() }, { it.idHex })).reversed()
+
+        val toKeep =
+            if ((sorted.firstOrNull()?.createdAt() ?: 0) > TimeUtils.oneWeekAgo()) {
+                // Recent messages, keep last 100
+                sorted.take(100).toSet()
+            } else {
+                // Old messages, keep the last one.
+                sorted.take(1).toSet()
+            } + sorted.filter { it.liveSet?.isInUse() ?: false }
+
+        val toRemove = roomMessages.minus(toKeep)
+        roomMessages = toKeep
+        return toRemove
+    }
+}
@@ -0,0 +1,111 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.Immutable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import com.vitorpamplona.amethyst.commons.hashtags.Amethyst
+import com.vitorpamplona.amethyst.commons.hashtags.Btc
+import com.vitorpamplona.amethyst.commons.hashtags.Cashu
+import com.vitorpamplona.amethyst.commons.hashtags.Coffee
+import com.vitorpamplona.amethyst.commons.hashtags.CustomHashTagIcons
+import com.vitorpamplona.amethyst.commons.hashtags.Footstr
+import com.vitorpamplona.amethyst.commons.hashtags.Grownostr
+import com.vitorpamplona.amethyst.commons.hashtags.Lightning
+import com.vitorpamplona.amethyst.commons.hashtags.Mate
+import com.vitorpamplona.amethyst.commons.hashtags.Nostr
+import com.vitorpamplona.amethyst.commons.hashtags.Plebs
+import com.vitorpamplona.amethyst.commons.hashtags.Skull
+import com.vitorpamplona.amethyst.commons.hashtags.Tunestr
+import com.vitorpamplona.amethyst.commons.hashtags.Weed
+import com.vitorpamplona.amethyst.commons.hashtags.Zap
+import com.vitorpamplona.amethyst.commons.richtext.HashTagSegment
+import com.vitorpamplona.amethyst.commons.richtext.RegularTextSegment
+import com.vitorpamplona.amethyst.ui.components.HashTag
+import com.vitorpamplona.amethyst.ui.components.RenderRegular
+import com.vitorpamplona.amethyst.ui.theme.ThemeComparisonColumn
+import com.vitorpamplona.quartz.events.EmptyTagList
+
+@Preview
+@Composable
+fun RenderHashTagIcons() {
+    val nav: (String) -> Unit = {}
+
+    ThemeComparisonColumn {
+        RenderRegular(
+            "Testing rendering of hashtags: #Bitcoin, #nostr, #lightning, #zap, #amethyst, #cashu, #plebs, #coffee, #skullofsatoshi, #grownostr, #footstr, #tunestr, #weed, #mate",
+            EmptyTagList,
+        ) { word, state ->
+            when (word) {
+                is HashTagSegment -> HashTag(word, nav)
+                is RegularTextSegment -> Text(word.segmentText)
+            }
+        }
+    }
+}
+
+fun checkForHashtagWithIcon(tag: String): HashtagIcon? {
+    return when (tag.lowercase()) {
+        "₿itcoin", "bitcoin", "btc", "timechain", "bitcoiner", "bitcoiners" -> bitcoin
+        "nostr", "nostrich", "nostriches", "thenostr" -> nostr
+        "lightning", "lightningnetwork" -> lightning
+        "zap", "zaps", "zapper", "zappers", "zapping", "zapped", "zapathon", "zapraiser", "zaplife", "zapchain" -> zap
+        "amethyst" -> amethyst
+        "cashu", "ecash", "nut", "nuts", "deeznuts" -> cashu
+        "plebs", "pleb", "plebchain" -> plebs
+        "coffee", "coffeechain", "cafe" -> coffee
+        "skullofsatoshi" -> skull
+        "grownostr", "gardening", "garden" -> growstr
+        "footstr" -> footstr
+        "tunestr", "music", "nowplaying" -> tunestr
+        "mate", "matechain", "matestr" -> matestr
+        "weed", "weedstr", "420", "cannabis", "marijuana" -> weed
+        else -> null
+    }
+}
+
+val bitcoin = HashtagIcon(CustomHashTagIcons.Btc, "Bitcoin", Modifier.padding(start = 1.dp, bottom = 1.dp, top = 1.dp))
+val nostr = HashtagIcon(CustomHashTagIcons.Nostr, "Nostr", Modifier.padding(start = 1.dp, bottom = 1.dp, top = 1.dp))
+val lightning = HashtagIcon(CustomHashTagIcons.Lightning, "Lightning", Modifier.padding(start = 1.dp, bottom = 1.dp, top = 1.dp))
+val zap = HashtagIcon(CustomHashTagIcons.Zap, "Zap", Modifier.padding(start = 1.dp, bottom = 1.dp, top = 1.dp))
+val amethyst = HashtagIcon(CustomHashTagIcons.Amethyst, "Amethyst", Modifier.padding(start = 2.dp, bottom = 1.dp, top = 1.dp))
+val cashu = HashtagIcon(CustomHashTagIcons.Cashu, "Cashu", Modifier.padding(start = 1.dp, bottom = 1.dp, top = 1.dp))
+val plebs = HashtagIcon(CustomHashTagIcons.Plebs, "Pleb", Modifier.padding(start = 2.dp, bottom = 1.dp, top = 1.dp))
+val coffee = HashtagIcon(CustomHashTagIcons.Coffee, "Coffee", Modifier.padding(start = 3.dp, bottom = 1.dp, top = 1.dp))
+val skull = HashtagIcon(CustomHashTagIcons.Skull, "SkullofSatoshi", Modifier.padding(start = 1.dp, bottom = 1.dp, top = 1.dp))
+val growstr = HashtagIcon(CustomHashTagIcons.Grownostr, "GrowNostr", Modifier.padding(start = 1.dp, bottom = 1.dp, top = 1.dp))
+val footstr = HashtagIcon(CustomHashTagIcons.Footstr, "Footstr", Modifier.padding(start = 2.dp, bottom = 1.dp, top = 1.dp))
+val tunestr = HashtagIcon(CustomHashTagIcons.Tunestr, "Tunestr", Modifier.padding(start = 1.dp, bottom = 1.dp, top = 1.dp))
+val weed = HashtagIcon(CustomHashTagIcons.Weed, "Weed", Modifier.padding(start = 1.dp, bottom = 0.dp, top = 0.dp))
+val matestr = HashtagIcon(CustomHashTagIcons.Mate, "Mate", Modifier.padding(start = 1.dp, bottom = 0.dp, top = 0.dp))
+
+@Immutable
+class HashtagIcon(
+    val icon: ImageVector,
+    val description: String,
+    val modifier: Modifier = Modifier,
+)
@@ -0,0 +1,161 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import android.util.Log
+import com.fasterxml.jackson.annotation.JsonSubTypes
+import com.fasterxml.jackson.annotation.JsonTypeInfo
+import com.fasterxml.jackson.databind.DeserializationFeature
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import kotlinx.collections.immutable.ImmutableMap
+import kotlinx.collections.immutable.persistentMapOf
+import kotlinx.collections.immutable.toImmutableMap
+
+@JsonTypeInfo(
+    use = JsonTypeInfo.Id.NAME,
+    include = JsonTypeInfo.As.PROPERTY,
+    property = "resourceType",
+)
+@JsonSubTypes(
+    JsonSubTypes.Type(value = Practitioner::class, name = "Practitioner"),
+    JsonSubTypes.Type(value = Patient::class, name = "Patient"),
+    JsonSubTypes.Type(value = Bundle::class, name = "Bundle"),
+    JsonSubTypes.Type(value = VisionPrescription::class, name = "VisionPrescription"),
+)
+open class Resource(
+    var resourceType: String? = null,
+    var id: String = "",
+)
+
+class Practitioner(
+    resourceType: String? = null,
+    id: String = "",
+    var active: Boolean? = null,
+    var name: ArrayList<HumanName> = arrayListOf(),
+    var gender: String? = null,
+) : Resource(resourceType, id)
+
+class Patient(
+    resourceType: String? = null,
+    id: String = "",
+    var active: Boolean? = null,
+    var name: ArrayList<HumanName> = arrayListOf(),
+    var gender: String? = null,
+) : Resource(resourceType, id)
+
+class HumanName(
+    var use: String? = null,
+    var family: String? = null,
+    var given: ArrayList<String> = arrayListOf(),
+) {
+    fun assembleName(): String {
+        return given.joinToString(" ") + " " + family
+    }
+}
+
+class Bundle(
+    resourceType: String? = null,
+    id: String = "",
+    var type: String? = null,
+    var created: String? = null,
+    var entry: List<Resource> = arrayListOf(),
+) : Resource(resourceType, id)
+
+class VisionPrescription(
+    resourceType: String? = null,
+    id: String = "",
+    var status: String? = null,
+    var created: String? = null,
+    var patient: Reference? = Reference(),
+    var encounter: Reference? = Reference(),
+    var dateWritten: String? = null,
+    var prescriber: Reference? = Reference(),
+    var lensSpecification: List<LensSpecification> = arrayListOf(),
+) : Resource(resourceType, id)
+
+class LensSpecification(
+    var eye: String? = null,
+    var sphere: Double? = null,
+    var cylinder: Double? = null,
+    var axis: Double? = null,
+    var add: Double? = null,
+    var prism: List<Prism> = arrayListOf(),
+    // contact lenses
+    var power: Double? = null,
+    var backCurve: Double? = null,
+    var diameter: Double? = null,
+    var color: String? = null,
+    var brand: String? = null,
+    var note: String? = null,
+)
+
+class Prism(
+    var amount: Double? = null,
+    var base: String? = null,
+)
+
+class Reference(
+    var reference: String? = null,
+)
+
+data class FhirElementDatabase(
+    var baseResource: Resource? = null,
+    var localDb: ImmutableMap<String, Resource> = persistentMapOf(),
+)
+
+fun findReferenceInDb(
+    it: String,
+    db: Map<String, Resource>,
+): Resource? {
+    val parts = it.split("/")
+    return if (parts.size == 2) {
+        db.get(parts[1].removePrefix("#"))
+    } else {
+        db.get(it.removePrefix("#"))
+    }
+}
+
+fun parseResourceBundleOrNull(json: String): FhirElementDatabase? {
+    val mapper =
+        jacksonObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+
+    return try {
+        val resource = mapper.readValue(json, Resource::class.java)
+
+        val db =
+            when (resource) {
+                is Bundle -> {
+                    resource.entry.associateBy { it.id }.toImmutableMap()
+                }
+                else -> {
+                    persistentMapOf(resource.id to resource)
+                }
+            }
+
+        FhirElementDatabase(
+            localDb = db,
+            baseResource = resource,
+        )
+    } catch (e: Exception) {
+        Log.e("RenderEyeGlassesPrescription", "Parser error", e)
+        null
+    }
+}
@@ -0,0 +1,116 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import com.vitorpamplona.quartz.encoders.HexKey
+
+class ParticipantListBuilder {
+    private fun addFollowsThatDirectlyParticipateOnToSet(
+        baseNote: Note,
+        followingSet: Set<HexKey>?,
+        set: MutableSet<User>,
+    ) {
+        baseNote.author?.let { author ->
+            if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) {
+                set.add(author)
+            }
+        }
+
+        // Breaks these searchers down to avoid the memory use of creating multiple lists
+        baseNote.replies.forEach { reply ->
+            reply.author?.let { author ->
+                if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) {
+                    set.add(author)
+                }
+            }
+        }
+
+        baseNote.boosts.forEach { boost ->
+            boost.author?.let { author ->
+                if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) {
+                    set.add(author)
+                }
+            }
+        }
+
+        baseNote.zaps.forEach { zapPair ->
+            zapPair.key.author?.let { author ->
+                if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) {
+                    set.add(author)
+                }
+            }
+        }
+
+        baseNote.reactions.forEach { reactionSet ->
+            reactionSet.value.forEach { reaction ->
+                reaction.author?.let { author ->
+                    if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) {
+                        set.add(author)
+                    }
+                }
+            }
+        }
+    }
+
+    fun followsThatParticipateOnDirect(
+        baseNote: Note?,
+        followingSet: Set<HexKey>?,
+    ): Set<User> {
+        if (baseNote == null) return mutableSetOf()
+
+        val set = mutableSetOf<User>()
+        addFollowsThatDirectlyParticipateOnToSet(baseNote, followingSet, set)
+        return set
+    }
+
+    fun followsThatParticipateOn(
+        baseNote: Note?,
+        followingSet: Set<HexKey>?,
+    ): Set<User> {
+        if (baseNote == null) return mutableSetOf()
+
+        val mySet = mutableSetOf<User>()
+        addFollowsThatDirectlyParticipateOnToSet(baseNote, followingSet, mySet)
+
+        baseNote.replies.forEach { addFollowsThatDirectlyParticipateOnToSet(it, followingSet, mySet) }
+
+        baseNote.boosts.forEach {
+            it.replyTo?.forEach { addFollowsThatDirectlyParticipateOnToSet(it, followingSet, mySet) }
+        }
+
+        LocalCache.getChannelIfExists(baseNote.idHex)?.notes?.forEach { key, it ->
+            addFollowsThatDirectlyParticipateOnToSet(it, followingSet, mySet)
+        }
+
+        return mySet
+    }
+
+    fun countFollowsThatParticipateOn(
+        baseNote: Note?,
+        followingSet: Set<HexKey>?,
+    ): Int {
+        if (baseNote == null) return 0
+
+        val list = followsThatParticipateOn(baseNote, followingSet)
+
+        return list.size
+    }
+}
@@ -0,0 +1,133 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import androidx.compose.runtime.Stable
+import com.vitorpamplona.amethyst.R
+
+@Stable
+data class Settings(
+    val theme: ThemeType = ThemeType.SYSTEM,
+    val preferredLanguage: String? = null,
+    val automaticallyShowImages: ConnectivityType = ConnectivityType.ALWAYS,
+    val automaticallyStartPlayback: ConnectivityType = ConnectivityType.ALWAYS,
+    val automaticallyShowUrlPreview: ConnectivityType = ConnectivityType.ALWAYS,
+    val automaticallyHideNavigationBars: BooleanType = BooleanType.ALWAYS,
+    val automaticallyShowProfilePictures: ConnectivityType = ConnectivityType.ALWAYS,
+    val dontShowPushNotificationSelector: Boolean = false,
+    val dontAskForNotificationPermissions: Boolean = false,
+    val featureSet: FeatureSetType = FeatureSetType.SIMPLIFIED,
+)
+
+enum class ThemeType(
+    val screenCode: Int,
+    val resourceId: Int,
+) {
+    SYSTEM(0, R.string.system),
+    LIGHT(1, R.string.light),
+    DARK(2, R.string.dark),
+}
+
+fun parseThemeType(code: Int?): ThemeType =
+    when (code) {
+        ThemeType.SYSTEM.screenCode -> ThemeType.SYSTEM
+        ThemeType.LIGHT.screenCode -> ThemeType.LIGHT
+        ThemeType.DARK.screenCode -> ThemeType.DARK
+        else -> {
+            ThemeType.SYSTEM
+        }
+    }
+
+enum class ConnectivityType(
+    val prefCode: Boolean?,
+    val screenCode: Int,
+    val resourceId: Int,
+) {
+    ALWAYS(null, 0, R.string.connectivity_type_always),
+    WIFI_ONLY(true, 1, R.string.connectivity_type_unmetered_wifi_only),
+    NEVER(false, 2, R.string.connectivity_type_never),
+}
+
+enum class FeatureSetType(
+    val screenCode: Int,
+    val resourceId: Int,
+) {
+    COMPLETE(0, R.string.ui_feature_set_type_complete),
+    SIMPLIFIED(1, R.string.ui_feature_set_type_simplified),
+    PERFORMANCE(2, R.string.ui_feature_set_type_performance),
+}
+
+fun parseConnectivityType(code: Boolean?): ConnectivityType =
+    when (code) {
+        ConnectivityType.ALWAYS.prefCode -> ConnectivityType.ALWAYS
+        ConnectivityType.WIFI_ONLY.prefCode -> ConnectivityType.WIFI_ONLY
+        ConnectivityType.NEVER.prefCode -> ConnectivityType.NEVER
+        else -> {
+            ConnectivityType.ALWAYS
+        }
+    }
+
+fun parseConnectivityType(screenCode: Int): ConnectivityType =
+    when (screenCode) {
+        ConnectivityType.ALWAYS.screenCode -> ConnectivityType.ALWAYS
+        ConnectivityType.WIFI_ONLY.screenCode -> ConnectivityType.WIFI_ONLY
+        ConnectivityType.NEVER.screenCode -> ConnectivityType.NEVER
+        else -> {
+            ConnectivityType.ALWAYS
+        }
+    }
+
+fun parseFeatureSetType(screenCode: Int): FeatureSetType =
+    when (screenCode) {
+        FeatureSetType.COMPLETE.screenCode -> FeatureSetType.COMPLETE
+        FeatureSetType.SIMPLIFIED.screenCode -> FeatureSetType.SIMPLIFIED
+        FeatureSetType.PERFORMANCE.screenCode -> FeatureSetType.PERFORMANCE
+        else -> {
+            FeatureSetType.COMPLETE
+        }
+    }
+
+enum class BooleanType(
+    val prefCode: Boolean?,
+    val screenCode: Int,
+    val reourceId: Int,
+) {
+    ALWAYS(null, 0, R.string.connectivity_type_always),
+    NEVER(false, 1, R.string.connectivity_type_never),
+}
+
+fun parseBooleanType(code: Boolean?): BooleanType =
+    when (code) {
+        BooleanType.ALWAYS.prefCode -> BooleanType.ALWAYS
+        BooleanType.NEVER.prefCode -> BooleanType.NEVER
+        else -> {
+            BooleanType.ALWAYS
+        }
+    }
+
+fun parseBooleanType(screenCode: Int): BooleanType =
+    when (screenCode) {
+        BooleanType.ALWAYS.screenCode -> BooleanType.ALWAYS
+        BooleanType.NEVER.screenCode -> BooleanType.NEVER
+        else -> {
+            BooleanType.ALWAYS
+        }
+    }
@@ -0,0 +1,197 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.quartz.encoders.ATag
+import com.vitorpamplona.quartz.events.AddressableEvent
+import com.vitorpamplona.quartz.events.GenericRepostEvent
+import com.vitorpamplona.quartz.events.RepostEvent
+import kotlin.time.measureTimedValue
+
+class ThreadAssembler {
+    private fun searchRoot(
+        note: Note,
+        testedNotes: MutableSet<Note> = mutableSetOf(),
+    ): Note? {
+        if (note.replyTo == null || note.replyTo?.isEmpty() == true) return note
+
+        if (note.event is RepostEvent || note.event is GenericRepostEvent) return note
+
+        testedNotes.add(note)
+
+        val markedAsRoot =
+            note.event
+                ?.tags()
+                ?.firstOrNull { it[0] == "e" && it.size > 3 && it[3] == "root" }
+                ?.getOrNull(1)
+        if (markedAsRoot != null) {
+            // Check to ssee if there is an error in the tag and the root has replies
+            if (LocalCache.getNoteIfExists(markedAsRoot)?.replyTo?.isEmpty() == true) {
+                return LocalCache.checkGetOrCreateNote(markedAsRoot)
+            }
+        }
+
+        val hasNoReplyTo = note.replyTo?.reversed()?.firstOrNull { it.replyTo?.isEmpty() == true }
+        if (hasNoReplyTo != null) return hasNoReplyTo
+
+        // recursive
+        val roots =
+            note.replyTo
+                ?.map {
+                    if (it !in testedNotes) {
+                        searchRoot(it, testedNotes)
+                    } else {
+                        null
+                    }
+                }
+                ?.filterNotNull()
+
+        if (roots != null && roots.isNotEmpty()) {
+            return roots[0]
+        }
+
+        return null
+    }
+
+    fun findThreadFor(noteId: String): Set<Note> {
+        checkNotInMainThread()
+
+        val (result, elapsed) =
+            measureTimedValue {
+                val note = LocalCache.checkGetOrCreateNote(noteId) ?: return emptySet<Note>()
+
+                if (note.event != null) {
+                    val thread = OnlyLatestVersionSet()
+
+                    val threadRoot = searchRoot(note, thread) ?: note
+
+                    loadDown(threadRoot, thread)
+                    // adds the replies of the note in case the search for Root
+                    // did not added them.
+                    note.replies.forEach { loadDown(it, thread) }
+
+                    thread
+                } else {
+                    setOf(note)
+                }
+            }
+
+        println("Model Refresh: Thread loaded in $elapsed")
+
+        return result
+    }
+
+    fun loadDown(
+        note: Note,
+        thread: MutableSet<Note>,
+    ) {
+        if (note !in thread) {
+            thread.add(note)
+
+            note.replies.forEach { loadDown(it, thread) }
+        }
+    }
+}
+
+class OnlyLatestVersionSet : MutableSet<Note> {
+    val map = hashMapOf<ATag, Long>()
+    val set = hashSetOf<Note>()
+
+    override fun add(element: Note): Boolean {
+        val loadedCreatedAt = element.createdAt()
+        val noteEvent = element.event
+
+        return if (element is AddressableNote && loadedCreatedAt != null) {
+            innerAdd(element.address, element, loadedCreatedAt)
+        } else if (noteEvent is AddressableEvent && loadedCreatedAt != null) {
+            innerAdd(noteEvent.address(), element, loadedCreatedAt)
+        } else {
+            set.add(element)
+        }
+    }
+
+    private fun innerAdd(
+        address: ATag,
+        element: Note,
+        loadedCreatedAt: Long,
+    ): Boolean {
+        val existing = map.get(address)
+        return if (existing == null) {
+            map.put(address, loadedCreatedAt)
+            set.add(element)
+        } else {
+            if (loadedCreatedAt > existing) {
+                map.put(address, loadedCreatedAt)
+                set.add(element)
+            } else {
+                false
+            }
+        }
+    }
+
+    override fun addAll(elements: Collection<Note>): Boolean {
+        return elements.map { add(it) }.any()
+    }
+
+    override val size: Int
+        get() = set.size
+
+    override fun clear() {
+        set.clear()
+        map.clear()
+    }
+
+    override fun isEmpty(): Boolean {
+        return set.isEmpty()
+    }
+
+    override fun containsAll(elements: Collection<Note>): Boolean {
+        return set.containsAll(elements)
+    }
+
+    override fun contains(element: Note): Boolean {
+        return set.contains(element)
+    }
+
+    override fun iterator(): MutableIterator<Note> {
+        return set.iterator()
+    }
+
+    override fun retainAll(elements: Collection<Note>): Boolean {
+        return set.retainAll(elements)
+    }
+
+    override fun removeAll(elements: Collection<Note>): Boolean {
+        return elements.map { remove(it) }.any()
+    }
+
+    override fun remove(element: Note): Boolean {
+        element.address()?.let {
+            map.remove(it)
+        }
+        (element.event as? AddressableEvent)?.address()?.let {
+            map.remove(it)
+        }
+
+        return set.remove(element)
+    }
+}
@@ -0,0 +1,125 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.events.GenericRepostEvent
+import com.vitorpamplona.quartz.events.RepostEvent
+import java.time.Instant
+import java.time.ZoneId
+import java.time.format.DateTimeFormatter
+
+data class LevelSignature(val signature: String, val createdAt: Long?, val author: User?)
+
+object ThreadLevelCalculator {
+    val levelFormatter = DateTimeFormatter.ofPattern("uuuu-MM-dd-HH:mm:ss")
+
+    private fun formattedDateTime(timestamp: Long): String {
+        return Instant.ofEpochSecond(timestamp)
+            .atZone(ZoneId.systemDefault())
+            .format(levelFormatter)
+    }
+
+    /**
+     * This method caches signatures during each execution to avoid recalculation in longer threads
+     */
+    fun replyLevelSignature(
+        note: Note,
+        eventsToConsider: Set<HexKey>,
+        cachedSignatures: MutableMap<Note, LevelSignature>,
+        account: User,
+        accountFollowingSet: Set<String>,
+        now: Long,
+    ): LevelSignature {
+        val replyTo = note.replyTo
+        if (
+            note.event is RepostEvent || note.event is GenericRepostEvent || replyTo == null || replyTo.isEmpty()
+        ) {
+            return LevelSignature(
+                signature = "/" + formattedDateTime(note.createdAt() ?: 0) + note.idHex.substring(0, 8) + ";",
+                createdAt = note.createdAt(),
+                author = note.author,
+            )
+        }
+
+        val parent =
+            (
+                replyTo
+                    .filter {
+                        it.idHex in eventsToConsider
+                    } // This forces the signature to be based on a branch, avoiding two roots
+                    .map {
+                        cachedSignatures[it]
+                            ?: replyLevelSignature(
+                                it,
+                                eventsToConsider,
+                                cachedSignatures,
+                                account,
+                                accountFollowingSet,
+                                now,
+                            ).apply { cachedSignatures.put(it, this) }
+                    }
+                    .maxByOrNull { it.signature.length }
+            )
+
+        val parentSignature = parent?.signature?.removeSuffix(";") ?: ""
+
+        val threadOrder =
+            if (parent?.author == note.author && note.createdAt() != null) {
+                // author of the thread first, in **ascending** order
+                "9" +
+                    formattedDateTime((parent?.createdAt ?: 0) + (now - (note.createdAt() ?: 0))) +
+                    note.idHex.substring(0, 8)
+            } else if (note.author?.pubkeyHex == account.pubkeyHex) {
+                "8" + formattedDateTime(note.createdAt() ?: 0) + note.idHex.substring(0, 8) // my replies
+            } else if (note.author?.pubkeyHex in accountFollowingSet) {
+                "7" + formattedDateTime(note.createdAt() ?: 0) + note.idHex.substring(0, 8) // my follows replies.
+            } else {
+                "0" + formattedDateTime(note.createdAt() ?: 0) + note.idHex.substring(0, 8) // everyone else.
+            }
+
+        val mySignature =
+            LevelSignature(
+                signature = parentSignature + "/" + threadOrder + ";",
+                createdAt = note.createdAt(),
+                author = note.author,
+            )
+
+        cachedSignatures[note] = mySignature
+        return mySignature
+    }
+
+    fun replyLevel(
+        note: Note,
+        cachedLevels: MutableMap<Note, Int> = mutableMapOf(),
+    ): Int {
+        val replyTo = note.replyTo
+        if (
+            note.event is RepostEvent || note.event is GenericRepostEvent || replyTo == null || replyTo.isEmpty()
+        ) {
+            return 0
+        }
+
+        return replyTo.maxOf {
+            cachedLevels[it] ?: replyLevel(it, cachedLevels).apply { cachedLevels.put(it, this) }
+        } + 1
+    }
+}
@@ -0,0 +1,80 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import android.util.LruCache
+import androidx.compose.runtime.Stable
+import com.vitorpamplona.amethyst.service.previews.BahaUrlPreview
+import com.vitorpamplona.amethyst.service.previews.IUrlPreviewCallback
+import com.vitorpamplona.amethyst.service.previews.UrlInfoItem
+import com.vitorpamplona.amethyst.ui.components.UrlPreviewState
+
+@Stable
+object UrlCachedPreviewer {
+    var cache = LruCache<String, UrlPreviewState>(100)
+        private set
+
+    suspend fun previewInfo(
+        url: String,
+        onReady: suspend (UrlPreviewState) -> Unit,
+    ) {
+        cache[url]?.let {
+            onReady(it)
+            return
+        }
+
+        BahaUrlPreview(
+            url,
+            object : IUrlPreviewCallback {
+                override suspend fun onComplete(urlInfo: UrlInfoItem) {
+                    cache[url]?.let {
+                        if (it is UrlPreviewState.Loaded || it is UrlPreviewState.Empty) {
+                            onReady(it)
+                            return
+                        }
+                    }
+
+                    val state =
+                        if (urlInfo.fetchComplete() && urlInfo.url == url) {
+                            UrlPreviewState.Loaded(urlInfo)
+                        } else {
+                            UrlPreviewState.Empty
+                        }
+
+                    cache.put(url, state)
+                    onReady(state)
+                }
+
+                override suspend fun onFailed(throwable: Throwable) {
+                    cache[url]?.let {
+                        onReady(it)
+                        return
+                    }
+
+                    val state = UrlPreviewState.Error(throwable.message ?: "Error Loading url preview")
+                    cache.put(url, state)
+                    onReady(state)
+                }
+            },
+        )
+            .fetchUrlPreview()
+    }
+}
@@ -0,0 +1,615 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model
+
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.Stable
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MediatorLiveData
+import androidx.lifecycle.distinctUntilChanged
+import com.vitorpamplona.amethyst.service.NostrSingleUserDataSource
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.amethyst.ui.note.toShortenHex
+import com.vitorpamplona.ammolite.relays.BundledUpdate
+import com.vitorpamplona.ammolite.relays.EOSETime
+import com.vitorpamplona.ammolite.relays.Relay
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.encoders.Lud06
+import com.vitorpamplona.quartz.encoders.Nip19Bech32
+import com.vitorpamplona.quartz.encoders.toNpub
+import com.vitorpamplona.quartz.events.AdvertisedRelayListEvent
+import com.vitorpamplona.quartz.events.BookmarkListEvent
+import com.vitorpamplona.quartz.events.ChatroomKey
+import com.vitorpamplona.quartz.events.ContactListEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.MetadataEvent
+import com.vitorpamplona.quartz.events.ReportEvent
+import com.vitorpamplona.quartz.events.UserMetadata
+import com.vitorpamplona.quartz.events.toImmutableListOfLists
+import kotlinx.collections.immutable.persistentSetOf
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import java.math.BigDecimal
+
+@Stable
+class User(
+    val pubkeyHex: String,
+) {
+    var info: UserMetadata? = null
+
+    var latestMetadata: MetadataEvent? = null
+    var latestMetadataRelay: String? = null
+    var latestContactList: ContactListEvent? = null
+    var latestBookmarkList: BookmarkListEvent? = null
+
+    var reports = mapOf<User, Set<Note>>()
+        private set
+
+    var latestEOSEs: Map<String, EOSETime> = emptyMap()
+
+    var zaps = mapOf<Note, Note?>()
+        private set
+
+    var relaysBeingUsed = mapOf<String, RelayInfo>()
+        private set
+
+    var privateChatrooms = mapOf<ChatroomKey, Chatroom>()
+        private set
+
+    fun pubkey() = Hex.decode(pubkeyHex)
+
+    fun pubkeyNpub() = pubkey().toNpub()
+
+    fun pubkeyDisplayHex() = pubkeyNpub().toShortenHex()
+
+    fun toNProfile(): String {
+        val relayList = (LocalCache.getAddressableNoteIfExists(AdvertisedRelayListEvent.createAddressTag(pubkeyHex))?.event as? AdvertisedRelayListEvent)?.writeRelays()
+
+        return Nip19Bech32.createNProfile(
+            pubkeyHex,
+            relayList?.take(3) ?: listOfNotNull(latestMetadataRelay),
+        )
+    }
+
+    fun toNostrUri() = "nostr:${toNProfile()}"
+
+    override fun toString(): String = pubkeyHex
+
+    fun toBestShortFirstName(): String {
+        val fullName = toBestDisplayName()
+
+        val names = fullName.split(' ')
+
+        val firstName =
+            if (names[0].length <= 3) {
+                // too short. Remove Dr.
+                "${names[0]} ${names.getOrNull(1) ?: ""}"
+            } else {
+                names[0]
+            }
+
+        return firstName
+    }
+
+    fun toBestDisplayName(): String = info?.bestName() ?: pubkeyDisplayHex()
+
+    fun nip05(): String? = info?.nip05
+
+    fun profilePicture(): String? = info?.picture
+
+    fun updateBookmark(event: BookmarkListEvent) {
+        if (event.id == latestBookmarkList?.id) return
+
+        latestBookmarkList = event
+        liveSet?.innerBookmarks?.invalidateData()
+    }
+
+    fun clearEOSE() {
+        latestEOSEs = emptyMap()
+    }
+
+    fun updateContactList(event: ContactListEvent) {
+        if (event.id == latestContactList?.id) return
+
+        val oldContactListEvent = latestContactList
+        latestContactList = event
+
+        // Update following of the current user
+        liveSet?.innerFollows?.invalidateData()
+        flowSet?.follows?.invalidateData()
+
+        // Update Followers of the past user list
+        // Update Followers of the new contact list
+        (oldContactListEvent)?.unverifiedFollowKeySet()?.forEach {
+            LocalCache
+                .getUserIfExists(it)
+                ?.liveSet
+                ?.innerFollowers
+                ?.invalidateData()
+        }
+        (latestContactList)?.unverifiedFollowKeySet()?.forEach {
+            LocalCache
+                .getUserIfExists(it)
+                ?.liveSet
+                ?.innerFollowers
+                ?.invalidateData()
+        }
+
+        liveSet?.innerRelays?.invalidateData()
+        flowSet?.relays?.invalidateData()
+    }
+
+    fun addReport(note: Note) {
+        val author = note.author ?: return
+
+        val reportsBy = reports[author]
+        if (reportsBy == null) {
+            reports = reports + Pair(author, setOf(note))
+            liveSet?.innerReports?.invalidateData()
+        } else if (!reportsBy.contains(note)) {
+            reports = reports + Pair(author, reportsBy + note)
+            liveSet?.innerReports?.invalidateData()
+        }
+    }
+
+    fun removeReport(deleteNote: Note) {
+        val author = deleteNote.author ?: return
+
+        if (reports[author]?.contains(deleteNote) == true) {
+            reports[author]?.let {
+                reports = reports + Pair(author, it.minus(deleteNote))
+                liveSet?.innerReports?.invalidateData()
+            }
+        }
+    }
+
+    fun addZap(
+        zapRequest: Note,
+        zap: Note?,
+    ) {
+        if (zaps[zapRequest] == null) {
+            zaps = zaps + Pair(zapRequest, zap)
+            liveSet?.innerZaps?.invalidateData()
+        }
+    }
+
+    fun removeZap(zapRequestOrZapEvent: Note) {
+        if (zaps.containsKey(zapRequestOrZapEvent)) {
+            zaps = zaps.minus(zapRequestOrZapEvent)
+            liveSet?.innerZaps?.invalidateData()
+        } else if (zaps.containsValue(zapRequestOrZapEvent)) {
+            zaps = zaps.filter { it.value != zapRequestOrZapEvent }
+            liveSet?.innerZaps?.invalidateData()
+        }
+    }
+
+    fun zappedAmount(): BigDecimal {
+        var amount = BigDecimal.ZERO
+        zaps.forEach {
+            val itemValue = (it.value?.event as? LnZapEvent)?.amount
+            if (itemValue != null) {
+                amount += itemValue
+            }
+        }
+
+        return amount
+    }
+
+    fun reportsBy(user: User): Set<Note> = reports[user] ?: emptySet()
+
+    fun countReportAuthorsBy(users: Set<HexKey>): Int = reports.count { it.key.pubkeyHex in users }
+
+    fun reportsBy(users: Set<HexKey>): List<Note> =
+        reports
+            .mapNotNull {
+                if (it.key.pubkeyHex in users) {
+                    it.value
+                } else {
+                    null
+                }
+            }.flatten()
+
+    @Synchronized
+    private fun getOrCreatePrivateChatroomSync(key: ChatroomKey): Chatroom {
+        checkNotInMainThread()
+
+        return privateChatrooms[key]
+            ?: run {
+                val privateChatroom = Chatroom()
+                privateChatrooms = privateChatrooms + Pair(key, privateChatroom)
+                privateChatroom
+            }
+    }
+
+    private fun getOrCreatePrivateChatroom(user: User): Chatroom {
+        val key = ChatroomKey(persistentSetOf(user.pubkeyHex))
+        return getOrCreatePrivateChatroom(key)
+    }
+
+    private fun getOrCreatePrivateChatroom(key: ChatroomKey): Chatroom = privateChatrooms[key] ?: getOrCreatePrivateChatroomSync(key)
+
+    fun addMessage(
+        room: ChatroomKey,
+        msg: Note,
+    ) {
+        val privateChatroom = getOrCreatePrivateChatroom(room)
+        if (msg !in privateChatroom.roomMessages) {
+            privateChatroom.addMessageSync(msg)
+            liveSet?.innerMessages?.invalidateData()
+        }
+    }
+
+    fun addMessage(
+        user: User,
+        msg: Note,
+    ) {
+        val privateChatroom = getOrCreatePrivateChatroom(user)
+        if (msg !in privateChatroom.roomMessages) {
+            privateChatroom.addMessageSync(msg)
+            liveSet?.innerMessages?.invalidateData()
+        }
+    }
+
+    fun createChatroom(withKey: ChatroomKey) {
+        getOrCreatePrivateChatroom(withKey)
+    }
+
+    fun removeMessage(
+        user: User,
+        msg: Note,
+    ) {
+        checkNotInMainThread()
+
+        val privateChatroom = getOrCreatePrivateChatroom(user)
+        if (msg in privateChatroom.roomMessages) {
+            privateChatroom.removeMessageSync(msg)
+            liveSet?.innerMessages?.invalidateData()
+        }
+    }
+
+    fun removeMessage(
+        room: ChatroomKey,
+        msg: Note,
+    ) {
+        checkNotInMainThread()
+        val privateChatroom = getOrCreatePrivateChatroom(room)
+        if (msg in privateChatroom.roomMessages) {
+            privateChatroom.removeMessageSync(msg)
+            liveSet?.innerMessages?.invalidateData()
+        }
+    }
+
+    fun addRelayBeingUsed(
+        relay: Relay,
+        eventTime: Long,
+    ) {
+        val here = relaysBeingUsed[relay.url]
+        if (here == null) {
+            relaysBeingUsed = relaysBeingUsed + Pair(relay.url, RelayInfo(relay.url, eventTime, 1))
+        } else {
+            if (eventTime > here.lastEvent) {
+                here.lastEvent = eventTime
+            }
+            here.counter++
+        }
+
+        liveSet?.innerRelayInfo?.invalidateData()
+    }
+
+    fun updateUserInfo(
+        newUserInfo: UserMetadata,
+        latestMetadata: MetadataEvent,
+    ) {
+        info = newUserInfo
+        info?.tags = latestMetadata.tags.toImmutableListOfLists()
+        info?.cleanBlankNames()
+
+        if (newUserInfo.lud16.isNullOrBlank()) {
+            info?.lud06?.let {
+                if (it.lowercase().startsWith("lnurl")) {
+                    info?.lud16 = Lud06().toLud16(it)
+                }
+            }
+        }
+
+        liveSet?.innerMetadata?.invalidateData()
+    }
+
+    fun isFollowing(user: User): Boolean = latestContactList?.isTaggedUser(user.pubkeyHex) ?: false
+
+    fun isFollowingHashtag(tag: String): Boolean = latestContactList?.isTaggedHash(tag) ?: false
+
+    fun isFollowingHashtagCached(tag: String): Boolean {
+        return latestContactList?.verifiedFollowTagSet?.let {
+            return tag.lowercase() in it
+        }
+            ?: false
+    }
+
+    fun isFollowingGeohashCached(geoTag: String): Boolean {
+        return latestContactList?.verifiedFollowGeohashSet?.let {
+            return geoTag.lowercase() in it
+        }
+            ?: false
+    }
+
+    fun isFollowingCached(user: User): Boolean {
+        return latestContactList?.verifiedFollowKeySet?.let {
+            return user.pubkeyHex in it
+        }
+            ?: false
+    }
+
+    fun isFollowingCached(userHex: String): Boolean {
+        return latestContactList?.verifiedFollowKeySet?.let {
+            return userHex in it
+        }
+            ?: false
+    }
+
+    fun transientFollowCount(): Int? = latestContactList?.unverifiedFollowKeySet()?.size
+
+    suspend fun transientFollowerCount(): Int = LocalCache.users.count { _, it -> it.latestContactList?.isTaggedUser(pubkeyHex) ?: false }
+
+    fun cachedFollowingKeySet(): Set<HexKey> = latestContactList?.verifiedFollowKeySet ?: emptySet()
+
+    fun cachedFollowingTagSet(): Set<String> = latestContactList?.verifiedFollowTagSet ?: emptySet()
+
+    fun cachedFollowingGeohashSet(): Set<HexKey> = latestContactList?.verifiedFollowGeohashSet ?: emptySet()
+
+    fun cachedFollowingCommunitiesSet(): Set<HexKey> = latestContactList?.verifiedFollowCommunitySet ?: emptySet()
+
+    fun cachedFollowCount(): Int? = latestContactList?.verifiedFollowKeySet?.size
+
+    suspend fun cachedFollowerCount(): Int = LocalCache.users.count { _, it -> it.latestContactList?.isTaggedUser(pubkeyHex) ?: false }
+
+    fun hasSentMessagesTo(key: ChatroomKey?): Boolean {
+        val messagesToUser = privateChatrooms[key] ?: return false
+
+        return messagesToUser.authors.any { this == it }
+    }
+
+    fun hasReport(
+        loggedIn: User,
+        type: ReportEvent.ReportType,
+    ): Boolean =
+        reports[loggedIn]?.firstOrNull {
+            it.event is ReportEvent &&
+                (it.event as ReportEvent).reportedAuthor().any { it.reportType == type }
+        } != null
+
+    fun anyNameStartsWith(username: String): Boolean = info?.anyNameStartsWith(username) ?: false
+
+    var liveSet: UserLiveSet? = null
+    var flowSet: UserFlowSet? = null
+
+    fun live(): UserLiveSet {
+        if (liveSet == null) {
+            createOrDestroyLiveSync(true)
+        }
+        return liveSet!!
+    }
+
+    fun clearLive() {
+        if (liveSet != null && liveSet?.isInUse() == false) {
+            createOrDestroyLiveSync(false)
+        }
+    }
+
+    @Synchronized
+    fun createOrDestroyLiveSync(create: Boolean) {
+        if (create) {
+            if (liveSet == null) {
+                liveSet = UserLiveSet(this)
+            }
+        } else {
+            if (liveSet != null && liveSet?.isInUse() == false) {
+                liveSet?.destroy()
+                liveSet = null
+            }
+        }
+    }
+
+    @Synchronized
+    fun createOrDestroyFlowSync(create: Boolean) {
+        if (create) {
+            if (flowSet == null) {
+                flowSet = UserFlowSet(this)
+            }
+        } else {
+            if (flowSet != null && flowSet?.isInUse() == false) {
+                flowSet?.destroy()
+                flowSet = null
+            }
+        }
+    }
+
+    fun flow(): UserFlowSet {
+        if (flowSet == null) {
+            createOrDestroyFlowSync(true)
+        }
+        return flowSet!!
+    }
+
+    fun clearFlow() {
+        if (flowSet != null && flowSet?.isInUse() == false) {
+            createOrDestroyFlowSync(false)
+        }
+    }
+}
+
+@Stable
+class UserFlowSet(
+    u: User,
+) {
+    // Observers line up here.
+    val follows = UserBundledRefresherFlow(u)
+    val relays = UserBundledRefresherFlow(u)
+
+    fun isInUse(): Boolean = relays.stateFlow.subscriptionCount.value > 0 || follows.stateFlow.subscriptionCount.value > 0
+
+    fun destroy() {
+        relays.destroy()
+        follows.destroy()
+    }
+}
+
+@Stable
+class UserLiveSet(
+    u: User,
+) {
+    val innerMetadata = UserBundledRefresherLiveData(u)
+
+    // UI Observers line up here.
+    val innerFollows = UserBundledRefresherLiveData(u)
+    val innerFollowers = UserBundledRefresherLiveData(u)
+    val innerReports = UserBundledRefresherLiveData(u)
+    val innerMessages = UserBundledRefresherLiveData(u)
+    val innerRelays = UserBundledRefresherLiveData(u)
+    val innerRelayInfo = UserBundledRefresherLiveData(u)
+    val innerZaps = UserBundledRefresherLiveData(u)
+    val innerBookmarks = UserBundledRefresherLiveData(u)
+    val innerStatuses = UserBundledRefresherLiveData(u)
+
+    // UI Observers line up here.
+    val metadata = innerMetadata.map { it }
+    val follows = innerFollows.map { it }
+    val followers = innerFollowers.map { it }
+    val reports = innerReports.map { it }
+    val messages = innerMessages.map { it }
+    val relays = innerRelays.map { it }
+    val relayInfo = innerRelayInfo.map { it }
+    val zaps = innerZaps.map { it }
+    val bookmarks = innerBookmarks.map { it }
+    val statuses = innerStatuses.map { it }
+
+    val profilePictureChanges = innerMetadata.map { it.user.profilePicture() }.distinctUntilChanged()
+
+    val nip05Changes = innerMetadata.map { it.user.nip05() }.distinctUntilChanged()
+
+    val userMetadataInfo = innerMetadata.map { it.user.info }.distinctUntilChanged()
+
+    fun isInUse(): Boolean =
+        metadata.hasObservers() ||
+            follows.hasObservers() ||
+            followers.hasObservers() ||
+            reports.hasObservers() ||
+            messages.hasObservers() ||
+            relays.hasObservers() ||
+            relayInfo.hasObservers() ||
+            zaps.hasObservers() ||
+            bookmarks.hasObservers() ||
+            statuses.hasObservers() ||
+            profilePictureChanges.hasObservers() ||
+            nip05Changes.hasObservers() ||
+            userMetadataInfo.hasObservers()
+
+    fun destroy() {
+        innerMetadata.destroy()
+        innerFollows.destroy()
+        innerFollowers.destroy()
+        innerReports.destroy()
+        innerMessages.destroy()
+        innerRelays.destroy()
+        innerRelayInfo.destroy()
+        innerZaps.destroy()
+        innerBookmarks.destroy()
+        innerStatuses.destroy()
+    }
+}
+
+@Immutable
+data class RelayInfo(
+    val url: String,
+    var lastEvent: Long,
+    var counter: Long,
+)
+
+class UserBundledRefresherLiveData(
+    val user: User,
+) : LiveData<UserState>(UserState(user)) {
+    // Refreshes observers in batches.
+    private val bundler = BundledUpdate(500, Dispatchers.IO)
+
+    fun destroy() {
+        bundler.cancel()
+    }
+
+    fun invalidateData() {
+        checkNotInMainThread()
+
+        bundler.invalidate {
+            checkNotInMainThread()
+
+            postValue(UserState(user))
+        }
+    }
+
+    fun <Y> map(transform: (UserState) -> Y): UserLoadingLiveData<Y> {
+        val initialValue = this.value?.let { transform(it) }
+        val result = UserLoadingLiveData(user, initialValue)
+        result.addSource(this) { x -> result.value = transform(x) }
+        return result
+    }
+}
+
+@Stable
+class UserBundledRefresherFlow(
+    val user: User,
+) {
+    // Refreshes observers in batches.
+    private val bundler = BundledUpdate(500, Dispatchers.IO)
+    val stateFlow = MutableStateFlow(UserState(user))
+
+    fun destroy() {
+        bundler.cancel()
+    }
+
+    fun invalidateData() {
+        checkNotInMainThread()
+
+        bundler.invalidate {
+            checkNotInMainThread()
+
+            stateFlow.emit(UserState(user))
+        }
+    }
+}
+
+class UserLoadingLiveData<Y>(
+    val user: User,
+    initialValue: Y?,
+) : MediatorLiveData<Y>(initialValue) {
+    override fun onActive() {
+        super.onActive()
+        NostrSingleUserDataSource.add(user)
+    }
+
+    override fun onInactive() {
+        super.onInactive()
+        NostrSingleUserDataSource.remove(user)
+    }
+}
+
+@Immutable class UserState(
+    val user: User,
+)
@@ -0,0 +1,64 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model.observables
+
+import com.vitorpamplona.amethyst.model.AddressableNote
+import com.vitorpamplona.amethyst.model.Note
+
+object CreatedAtComparator : Comparator<Note> {
+    override fun compare(
+        first: Note?,
+        second: Note?,
+    ): Int {
+        val firstEvent = first?.event
+        val secondEvent = second?.event
+
+        return if (firstEvent == null && secondEvent == null) {
+            0
+        } else if (firstEvent == null) {
+            1
+        } else if (secondEvent == null) {
+            -1
+        } else {
+            firstEvent.createdAt().compareTo(secondEvent.createdAt())
+        }
+    }
+}
+
+object CreatedAtComparatorAddresses : Comparator<AddressableNote> {
+    override fun compare(
+        first: AddressableNote?,
+        second: AddressableNote?,
+    ): Int {
+        val firstEvent = first?.event
+        val secondEvent = second?.event
+
+        return if (firstEvent == null && secondEvent == null) {
+            0
+        } else if (firstEvent == null) {
+            1
+        } else if (secondEvent == null) {
+            -1
+        } else {
+            firstEvent.createdAt().compareTo(secondEvent.createdAt())
+        }
+    }
+}
@@ -0,0 +1,72 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model.observables
+
+import com.vitorpamplona.amethyst.model.AddressableNote
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.quartz.events.Event
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+
+class LatestByKindAndAuthor<T : Event>(private val kind: Int, private val pubkey: String) {
+    private val _latest = MutableStateFlow<T?>(null)
+    val latest = _latest.asStateFlow()
+
+    fun matches(event: T) = event.kind == kind && event.pubKey == pubkey
+
+    fun updateIfMatches(event: T) {
+        if (matches(event)) {
+            if (event.createdAt > (_latest.value?.createdAt ?: 0)) {
+                _latest.tryEmit(event)
+            }
+        }
+    }
+
+    fun canDelete(): Boolean {
+        return _latest.subscriptionCount.value == 0
+    }
+
+    suspend fun init() {
+        val latestNote =
+            if ((kind in 10000..19999) || (kind in 30000..39999)) {
+                LocalCache.addressables.maxOrNullOf(
+                    filter = { idHex: String, note: AddressableNote ->
+                        note.event?.let {
+                            it.kind() == kind && it.pubKey() == pubkey
+                        } == true
+                    },
+                    comparator = CreatedAtComparatorAddresses,
+                )?.event as? T
+            } else {
+                LocalCache.notes.maxOrNullOf(
+                    filter = { idHex: String, note: Note ->
+                        note.event?.let {
+                            it.kind() == kind && it.pubKey() == pubkey
+                        } == true
+                    },
+                    comparator = CreatedAtComparator,
+                )?.event as? T
+            }
+
+        _latest.tryEmit(latestNote)
+    }
+}
@@ -0,0 +1,60 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.model.observables
+
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.quartz.events.Event
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+
+class LatestByKindWithETag<T : Event>(private val kind: Int, private val eTag: String) {
+    private val _latest = MutableStateFlow<T?>(null)
+    val latest = _latest.asStateFlow()
+
+    fun matches(event: T) = event.kind == kind && event.isTaggedEvent(eTag)
+
+    fun updateIfMatches(event: T) {
+        if (matches(event)) {
+            if (event.createdAt > (_latest.value?.createdAt ?: 0)) {
+                _latest.tryEmit(event)
+            }
+        }
+    }
+
+    fun canDelete(): Boolean {
+        return _latest.subscriptionCount.value == 0
+    }
+
+    suspend fun init() {
+        val latestNote =
+            LocalCache.notes.maxOrNullOf(
+                filter = { idHex: String, note: Note ->
+                    note.event?.let {
+                        it.kind() == kind && it.isTaggedEvent(eTag)
+                    } == true
+                },
+                comparator = CreatedAtComparator,
+            )?.event as? T
+
+        _latest.tryEmit(latestNote)
+    }
+}
@@ -0,0 +1,49 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.ammolite.relays.NostrDataSource
+import com.vitorpamplona.ammolite.relays.Relay
+import com.vitorpamplona.quartz.events.AddressableEvent
+import com.vitorpamplona.quartz.events.Event
+
+abstract class AmethystNostrDataSource(debugName: String) : NostrDataSource(debugName) {
+    override fun consume(
+        event: Event,
+        relay: Relay,
+    ) {
+        LocalCache.verifyAndConsume(event, relay)
+    }
+
+    override fun markAsSeenOnRelay(
+        eventId: String,
+        relay: Relay,
+    ) {
+        val note = LocalCache.getNoteIfExists(eventId)
+        val noteEvent = note?.event
+        if (noteEvent is AddressableEvent) {
+            LocalCache.getAddressableNoteIfExists(noteEvent.address().toTag())?.addRelay(relay)
+        } else {
+            note?.addRelay(relay)
+        }
+    }
+}
@@ -0,0 +1,80 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.content.Context
+import android.net.Uri
+import androidx.compose.runtime.Stable
+import androidx.core.graphics.drawable.toDrawable
+import coil.ImageLoader
+import coil.decode.DataSource
+import coil.fetch.DrawableResult
+import coil.fetch.FetchResult
+import coil.fetch.Fetcher
+import coil.request.ImageRequest
+import coil.request.Options
+import com.vitorpamplona.amethyst.commons.preview.BlurHashDecoder
+import java.net.URLDecoder
+import java.net.URLEncoder
+
+@Stable
+class BlurHashFetcher(
+    private val options: Options,
+    private val data: Uri,
+) : Fetcher {
+    override suspend fun fetch(): FetchResult {
+        checkNotInMainThread()
+
+        val hash = URLDecoder.decode(data.toString().removePrefix("bluehash:"), "utf-8")
+
+        val bitmap = BlurHashDecoder.decodeKeepAspectRatio(hash, 25) ?: throw Exception("Unable to convert Bluehash $data")
+
+        return DrawableResult(
+            drawable = bitmap.toDrawable(options.context.resources),
+            isSampled = false,
+            dataSource = DataSource.MEMORY,
+        )
+    }
+
+    object Factory : Fetcher.Factory<Uri> {
+        override fun create(
+            data: Uri,
+            options: Options,
+            imageLoader: ImageLoader,
+        ): Fetcher {
+            return BlurHashFetcher(options, data)
+        }
+    }
+}
+
+object BlurHashRequester {
+    fun imageRequest(
+        context: Context,
+        message: String,
+    ): ImageRequest {
+        val encodedMessage = URLEncoder.encode(message, "utf-8")
+
+        return ImageRequest.Builder(context)
+            .data("bluehash:$encodedMessage")
+            .fetcherFactory(BlurHashFetcher.Factory)
+            .build()
+    }
+}
@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.util.LruCache
+import com.vitorpamplona.amethyst.commons.richtext.RichTextParser
+import com.vitorpamplona.amethyst.commons.richtext.RichTextViewerState
+import com.vitorpamplona.quartz.events.ImmutableListOfLists
+
+object CachedRichTextParser {
+    val richTextCache = LruCache<String, RichTextViewerState>(50)
+
+    fun getCached(content: String): RichTextViewerState? = richTextCache[content]
+
+    fun parseText(
+        content: String,
+        tags: ImmutableListOfLists<String>,
+        callbackUri: String? = null,
+    ): RichTextViewerState {
+        val cached = richTextCache[content]
+        return if (cached != null) {
+            cached
+        } else {
+            val newUrls = RichTextParser().parseText(content, tags, callbackUri)
+            richTextCache.put(content, newUrls)
+            newUrls
+        }
+    }
+}
@@ -0,0 +1,266 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.content.Context
+import android.util.LruCache
+import androidx.compose.runtime.Immutable
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.service.lnurl.LightningAddressResolver
+import com.vitorpamplona.amethyst.ui.components.GenericLoadable
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.events.Event
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.toRequestBody
+import java.util.Base64
+import kotlin.coroutines.cancellation.CancellationException
+
+@Immutable
+data class CashuToken(
+    val token: String,
+    val mint: String,
+    val totalAmount: Long,
+    val proofs: JsonNode,
+)
+
+object CachedCashuProcessor {
+    val cashuCache = LruCache<String, GenericLoadable<CashuToken>>(20)
+
+    fun cached(token: String): GenericLoadable<CashuToken> = cashuCache[token] ?: GenericLoadable.Loading()
+
+    fun parse(token: String): GenericLoadable<CashuToken> {
+        if (cashuCache[token] !is GenericLoadable.Loaded) {
+            val newCachuData = CashuProcessor().parse(token)
+
+            cashuCache.put(token, newCachuData)
+        }
+
+        return cashuCache[token]
+    }
+}
+
+class CashuProcessor {
+    fun parse(cashuToken: String): GenericLoadable<CashuToken> {
+        checkNotInMainThread()
+
+        try {
+            val base64token = cashuToken.replace("cashuA", "")
+            val cashu = jacksonObjectMapper().readTree(String(Base64.getDecoder().decode(base64token)))
+            val token = cashu.get("token").get(0)
+            val proofs = token.get("proofs")
+            val mint = token.get("mint").asText()
+
+            var totalAmount = 0L
+            for (proof in proofs) {
+                totalAmount += proof.get("amount").asLong()
+            }
+
+            return GenericLoadable.Loaded(CashuToken(cashuToken, mint, totalAmount, proofs))
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            return GenericLoadable.Error<CashuToken>("Could not parse this cashu token")
+        }
+    }
+
+    suspend fun melt(
+        token: CashuToken,
+        lud16: String,
+        onSuccess: (String, String) -> Unit,
+        onError: (String, String) -> Unit,
+        context: Context,
+    ) {
+        checkNotInMainThread()
+
+        runCatching {
+            LightningAddressResolver()
+                .lnAddressInvoice(
+                    lnaddress = lud16,
+                    // Make invoice and leave room for fees
+                    milliSats = token.totalAmount * 1000,
+                    message = "Calculate Fees for Cashu",
+                    onSuccess = { baseInvoice ->
+                        feeCalculator(
+                            token.mint,
+                            baseInvoice,
+                            onSuccess = { fees ->
+                                LightningAddressResolver()
+                                    .lnAddressInvoice(
+                                        lnaddress = lud16,
+                                        // Make invoice and leave room for fees
+                                        milliSats = (token.totalAmount - fees) * 1000,
+                                        message = "Redeem Cashu",
+                                        onSuccess = { invoice ->
+                                            meltInvoice(token, invoice, fees, onSuccess, onError, context)
+                                        },
+                                        onProgress = {},
+                                        onError = onError,
+                                        context = context,
+                                    )
+                            },
+                            onError = onError,
+                            context,
+                        )
+                    },
+                    onProgress = {},
+                    onError = onError,
+                    context = context,
+                )
+        }
+    }
+
+    fun feeCalculator(
+        mintAddress: String,
+        invoice: String,
+        onSuccess: (Int) -> Unit,
+        onError: (String, String) -> Unit,
+        context: Context,
+    ) {
+        checkNotInMainThread()
+
+        try {
+            val client = HttpClientManager.getHttpClient()
+            val url = "$mintAddress/checkfees" // Melt cashu tokens at Mint
+
+            val factory = Event.mapper.nodeFactory
+
+            val jsonObject = factory.objectNode()
+            jsonObject.put("pr", invoice)
+
+            val mediaType = "application/json; charset=utf-8".toMediaType()
+            val requestBody = jsonObject.toString().toRequestBody(mediaType)
+            val request =
+                Request
+                    .Builder()
+                    .url(url)
+                    .post(requestBody)
+                    .build()
+
+            client.newCall(request).execute().use {
+                val body = it.body.string()
+                val tree = jacksonObjectMapper().readTree(body)
+
+                val feeCost = tree?.get("fee")?.asInt()
+
+                if (feeCost != null) {
+                    onSuccess(
+                        feeCost,
+                    )
+                } else {
+                    val msg =
+                        tree
+                            ?.get("detail")
+                            ?.asText()
+                            ?.split('.')
+                            ?.getOrNull(0)
+                            ?.ifBlank { null }
+                    onError(
+                        stringRes(context, R.string.cashu_failed_redemption),
+                        if (msg != null) {
+                            stringRes(context, R.string.cashu_failed_redemption_explainer_error_msg, msg)
+                        } else {
+                            stringRes(context, R.string.cashu_failed_redemption_explainer_error_msg)
+                        },
+                    )
+                }
+            }
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            onError(
+                stringRes(context, R.string.cashu_successful_redemption),
+                stringRes(context, R.string.cashu_failed_redemption_explainer_error_msg, e.message),
+            )
+        }
+    }
+
+    private fun meltInvoice(
+        token: CashuToken,
+        invoice: String,
+        fees: Int,
+        onSuccess: (String, String) -> Unit,
+        onError: (String, String) -> Unit,
+        context: Context,
+    ) {
+        try {
+            val client = HttpClientManager.getHttpClient()
+            val url = token.mint + "/melt" // Melt cashu tokens at Mint
+
+            val factory = Event.mapper.nodeFactory
+
+            val jsonObject = factory.objectNode()
+            jsonObject.put("proofs", token.proofs)
+            jsonObject.put("pr", invoice)
+
+            val mediaType = "application/json; charset=utf-8".toMediaType()
+            val requestBody = jsonObject.toString().toRequestBody(mediaType)
+            val request =
+                Request
+                    .Builder()
+                    .url(url)
+                    .post(requestBody)
+                    .build()
+
+            client.newCall(request).execute().use {
+                val body = it.body.string()
+                val tree = jacksonObjectMapper().readTree(body)
+
+                val successful = tree?.get("paid")?.asText() == "true"
+
+                if (successful) {
+                    onSuccess(
+                        stringRes(context, R.string.cashu_successful_redemption),
+                        stringRes(
+                            context,
+                            R.string.cashu_successful_redemption_explainer,
+                            token.totalAmount.toString(),
+                            fees.toString(),
+                        ),
+                    )
+                } else {
+                    val msg =
+                        tree
+                            ?.get("detail")
+                            ?.asText()
+                            ?.split('.')
+                            ?.getOrNull(0)
+                            ?.ifBlank { null }
+                    onError(
+                        stringRes(context, R.string.cashu_failed_redemption),
+                        if (msg != null) {
+                            stringRes(context, R.string.cashu_failed_redemption_explainer_error_msg, msg)
+                        } else {
+                            stringRes(context, R.string.cashu_failed_redemption_explainer_error_msg)
+                        },
+                    )
+                }
+            }
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            onError(
+                stringRes(context, R.string.cashu_successful_redemption),
+                stringRes(context, R.string.cashu_failed_redemption_explainer_error_msg, e.message),
+            )
+        }
+    }
+}
@@ -0,0 +1,131 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.quartz.events.ImmutableListOfLists
+
+fun String.isUTF16Char(pos: Int): Boolean {
+    return Character.charCount(this.codePointAt(pos)) == 2
+}
+
+fun String.firstFullCharOld(): String {
+    return when (this.length) {
+        0,
+        1,
+        -> return this
+        2,
+        3,
+        -> return if (isUTF16Char(0)) this.take(2) else this.take(1)
+        else -> {
+            val first = isUTF16Char(0)
+            val second = isUTF16Char(2)
+            if (first && second) {
+                this.take(4)
+            } else if (first) {
+                this.take(2)
+            } else {
+                this.take(1)
+            }
+        }
+    }
+}
+
+fun String.firstFullChar(): String {
+    var isInJoin = false
+    var hasHadSecondChance = false
+    var start = 0
+    var previousCharLength = 0
+    var next: Int
+    var codePoint: Int
+
+    var i = 0
+
+    while (i < this.length) {
+        codePoint = codePointAt(i)
+
+        // Skips if it starts with the join char 0x200D
+        if (codePoint == 0x200D && previousCharLength == 0) {
+            next = offsetByCodePoints(i, 1)
+            start = next
+        } else {
+            // If join, searches for the next char
+            if (codePoint == 0xFE0F) {
+            } else if (codePoint == 0x200D) {
+                isInJoin = true
+            } else {
+                // stops when two chars are not joined together
+                if (previousCharLength > 0 && !isInJoin) {
+                    if (Character.charCount(codePoint) == 1 || hasHadSecondChance) {
+                        break
+                    } else {
+                        hasHadSecondChance = true
+                    }
+                } else {
+                    hasHadSecondChance = false
+                }
+
+                isInJoin = false
+            }
+
+            // next char to evaluate
+            next = offsetByCodePoints(i, 1)
+            previousCharLength += (next - i)
+        }
+
+        i = next
+    }
+
+    // if ends in join, then seachers backwards until a char is found.
+    if (isInJoin) {
+        i = previousCharLength - 1
+        while (i > 0) {
+            if (this[i].code == 0x200D) {
+                previousCharLength -= 1
+            } else {
+                break
+            }
+
+            i -= 1
+        }
+    }
+
+    return substring(start, start + previousCharLength)
+}
+
+fun String.firstFullCharOrEmoji(tags: ImmutableListOfLists<String>): String {
+    if (length <= 2) {
+        return firstFullChar()
+    }
+
+    if (this[0] == ':') {
+        // makes sure an emoji exists
+        val emojiParts = this.split(":", limit = 3)
+        if (emojiParts.size >= 2) {
+            val emojiName = emojiParts[1]
+            val emojiUrl = tags.lists.firstOrNull { it.size > 1 && it[1] == emojiName }?.getOrNull(2)
+            if (emojiUrl != null) {
+                return ":$emojiName:$emojiUrl"
+            }
+        }
+    }
+
+    return firstFullChar()
+}
@@ -0,0 +1,268 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.graphics.ImageDecoder
+import android.media.MediaDataSource
+import android.media.MediaMetadataRetriever
+import android.media.MediaMetadataRetriever.BitmapParams
+import android.os.Build
+import android.util.Log
+import com.vitorpamplona.amethyst.ui.actions.ImageDownloader
+import com.vitorpamplona.quartz.crypto.CryptoUtils
+import com.vitorpamplona.quartz.encoders.toHexKey
+import io.trbl.blurhash.BlurHash
+import kotlinx.coroutines.CancellationException
+import java.io.IOException
+import kotlin.math.roundToInt
+
+class FileHeader(
+    val mimeType: String?,
+    val hash: String,
+    val size: Int,
+    val dim: String?,
+    val blurHash: String?,
+) {
+    companion object {
+        suspend fun prepare(
+            fileUrl: String,
+            mimeType: String?,
+            dimPrecomputed: String?,
+            onReady: (FileHeader) -> Unit,
+            onError: (String?) -> Unit,
+        ) {
+            try {
+                val imageData: ByteArray? = ImageDownloader().waitAndGetImage(fileUrl)
+
+                if (imageData != null) {
+                    prepare(imageData, mimeType, dimPrecomputed, onReady, onError)
+                } else {
+                    onError(null)
+                }
+            } catch (e: Exception) {
+                if (e is CancellationException) throw e
+                Log.e("ImageDownload", "Couldn't download image from server: ${e.message}")
+                onError(e.message)
+            }
+        }
+
+        fun prepare(
+            data: ByteArray,
+            mimeType: String?,
+            dimPrecomputed: String?,
+            onReady: (FileHeader) -> Unit,
+            onError: (String?) -> Unit,
+        ) {
+            try {
+                val hash = CryptoUtils.sha256(data).toHexKey()
+                val size = data.size
+
+                val (blurHash, dim) =
+                    if (mimeType?.startsWith("image/") == true) {
+                        val opt = BitmapFactory.Options()
+                        opt.inPreferredConfig = Bitmap.Config.ARGB_8888
+                        val mBitmap = BitmapFactory.decodeByteArray(data, 0, data.size, opt)
+
+                        val intArray = IntArray(mBitmap.width * mBitmap.height)
+                        mBitmap.getPixels(
+                            intArray,
+                            0,
+                            mBitmap.width,
+                            0,
+                            0,
+                            mBitmap.width,
+                            mBitmap.height,
+                        )
+
+                        val dim = "${mBitmap.width}x${mBitmap.height}"
+
+                        val aspectRatio = (mBitmap.width).toFloat() / (mBitmap.height).toFloat()
+
+                        if (aspectRatio > 1) {
+                            Pair(
+                                BlurHash.encode(
+                                    intArray,
+                                    mBitmap.width,
+                                    mBitmap.height,
+                                    9,
+                                    (9 * (1 / aspectRatio)).roundToInt(),
+                                ),
+                                dim,
+                            )
+                        } else if (aspectRatio < 1) {
+                            Pair(
+                                BlurHash.encode(
+                                    intArray,
+                                    mBitmap.width,
+                                    mBitmap.height,
+                                    (9 * aspectRatio).roundToInt(),
+                                    9,
+                                ),
+                                dim,
+                            )
+                        } else {
+                            Pair(BlurHash.encode(intArray, mBitmap.width, mBitmap.height, 4, 4), dim)
+                        }
+                    } else if (mimeType?.startsWith("video/") == true) {
+                        val mediaMetadataRetriever = MediaMetadataRetriever()
+                        mediaMetadataRetriever.setDataSource(ByteArrayMediaDataSource(data))
+
+                        val newDim = mediaMetadataRetriever.prepareDimFromVideo() ?: dimPrecomputed
+
+                        val blurhash =
+                            mediaMetadataRetriever.getThumbnail()?.let { thumbnail ->
+                                val aspectRatio = (thumbnail.width).toFloat() / (thumbnail.height).toFloat()
+
+                                val intArray = IntArray(thumbnail.width * thumbnail.height)
+                                thumbnail.getPixels(
+                                    intArray,
+                                    0,
+                                    thumbnail.width,
+                                    0,
+                                    0,
+                                    thumbnail.width,
+                                    thumbnail.height,
+                                )
+
+                                if (aspectRatio > 1) {
+                                    BlurHash.encode(
+                                        intArray,
+                                        thumbnail.width,
+                                        thumbnail.height,
+                                        9,
+                                        (9 * (1 / aspectRatio)).roundToInt(),
+                                    )
+                                } else if (aspectRatio < 1) {
+                                    BlurHash.encode(
+                                        intArray,
+                                        thumbnail.width,
+                                        thumbnail.height,
+                                        (9 * aspectRatio).roundToInt(),
+                                        9,
+                                    )
+                                } else {
+                                    BlurHash.encode(intArray, thumbnail.width, thumbnail.height, 4, 4)
+                                }
+                            }
+
+                        if (newDim != "0x0") {
+                            Pair(blurhash, newDim)
+                        } else {
+                            Pair(blurhash, null)
+                        }
+                    } else {
+                        Pair(null, null)
+                    }
+
+                onReady(FileHeader(mimeType, hash, size, dim, blurHash))
+            } catch (e: Exception) {
+                if (e is CancellationException) throw e
+                Log.e("ImageDownload", "Couldn't convert image in to File Header: ${e.message}")
+                onError(e.message)
+            }
+        }
+    }
+}
+
+fun MediaMetadataRetriever.getThumbnail(): Bitmap? {
+    val raw: ByteArray? = getEmbeddedPicture()
+    if (raw != null) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            return ImageDecoder.decodeBitmap(ImageDecoder.createSource(raw))
+        }
+    }
+
+    return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+        val params = BitmapParams()
+        params.preferredConfig = Bitmap.Config.ARGB_8888
+
+        // Fall back to middle of video
+        // Note: METADATA_KEY_DURATION unit is in ms, not us.
+        val thumbnailTimeUs: Long =
+            (extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION)?.toLong() ?: 0) * 1000 / 2
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            getFrameAtTime(thumbnailTimeUs, MediaMetadataRetriever.OPTION_CLOSEST_SYNC, params)
+        } else {
+            null
+        }
+    } else {
+        null
+    }
+}
+
+fun MediaMetadataRetriever.prepareDimFromVideo(): String? {
+    val width = prepareVideoWidth() ?: return null
+    val height = prepareVideoHeight() ?: return null
+
+    return "${width}x$height"
+}
+
+fun MediaMetadataRetriever.prepareVideoWidth(): Int? {
+    val widthData = extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH)
+    return if (widthData.isNullOrEmpty()) {
+        null
+    } else {
+        widthData.toInt()
+    }
+}
+
+fun MediaMetadataRetriever.prepareVideoHeight(): Int? {
+    val heightData = extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT)
+    return if (heightData.isNullOrEmpty()) {
+        null
+    } else {
+        heightData.toInt()
+    }
+}
+
+class ByteArrayMediaDataSource(var imageData: ByteArray) : MediaDataSource() {
+    override fun getSize(): Long {
+        return imageData.size.toLong()
+    }
+
+    @Throws(IOException::class)
+    override fun readAt(
+        position: Long,
+        buffer: ByteArray,
+        offset: Int,
+        size: Int,
+    ): Int {
+        if (position >= imageData.size) {
+            return -1
+        }
+        val newSize =
+            if (position + size > imageData.size) {
+                size - ((position.toInt() + size) - imageData.size)
+            } else {
+                size
+            }
+
+        imageData.copyInto(buffer, offset, position.toInt(), position.toInt() + newSize)
+
+        return newSize
+    }
+
+    @Throws(IOException::class)
+    override fun close() {}
+}
@@ -0,0 +1,63 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.R
+
+class HttpStatusMessages {
+    companion object {
+        fun resourceIdFor(statusCode: Int = 0): Int? =
+            when (statusCode) {
+                400 -> R.string.http_status_400
+                401 -> R.string.http_status_401
+                402 -> R.string.http_status_402
+                403 -> R.string.http_status_403
+                404 -> R.string.http_status_404
+                405 -> R.string.http_status_405
+                406 -> R.string.http_status_406
+                407 -> R.string.http_status_407
+                408 -> R.string.http_status_408
+                409 -> R.string.http_status_409
+                410 -> R.string.http_status_410
+                411 -> R.string.http_status_411
+                412 -> R.string.http_status_412
+                413 -> R.string.http_status_413
+                414 -> R.string.http_status_414
+                415 -> R.string.http_status_415
+                416 -> R.string.http_status_416
+                417 -> R.string.http_status_417
+                426 -> R.string.http_status_426
+
+                500 -> R.string.http_status_500
+                501 -> R.string.http_status_501
+                502 -> R.string.http_status_502
+                503 -> R.string.http_status_503
+                504 -> R.string.http_status_504
+                505 -> R.string.http_status_505
+                506 -> R.string.http_status_506
+                507 -> R.string.http_status_507
+                508 -> R.string.http_status_508
+                511 -> R.string.http_status_511
+
+                else -> null
+            }
+    }
+}
@@ -0,0 +1,141 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.location.Geocoder
+import android.location.Location
+import android.location.LocationListener
+import android.location.LocationManager
+import android.os.HandlerThread
+import android.util.LruCache
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.mutableStateOf
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.flow.MutableStateFlow
+
+class LocationUtil(context: Context) {
+    companion object {
+        const val MIN_TIME: Long = 1000L
+        const val MIN_DISTANCE: Float = 0.0f
+    }
+
+    private val locationManager =
+        context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
+    private var locationListener: LocationListener? = null
+
+    val locationStateFlow = MutableStateFlow<Location>(Location(LocationManager.NETWORK_PROVIDER))
+    val providerState = mutableStateOf(false)
+    val isStart: MutableState<Boolean> = mutableStateOf(false)
+
+    private val locHandlerThread = HandlerThread("LocationUtil Thread")
+
+    init {
+        locHandlerThread.start()
+    }
+
+    @SuppressLint("MissingPermission")
+    fun start(
+        minTimeMs: Long = MIN_TIME,
+        minDistanceM: Float = MIN_DISTANCE,
+    ) {
+        locationListener().let {
+            locationListener = it
+            locationManager.requestLocationUpdates(
+                LocationManager.NETWORK_PROVIDER,
+                minTimeMs,
+                minDistanceM,
+                it,
+                locHandlerThread.looper,
+            )
+        }
+        providerState.value = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)
+        isStart.value = true
+    }
+
+    fun stop() {
+        locationListener?.let { locationManager.removeUpdates(it) }
+        isStart.value = false
+    }
+
+    private fun locationListener() =
+        object : LocationListener {
+            override fun onLocationChanged(location: Location) {
+                locationStateFlow.value = location
+            }
+
+            override fun onProviderEnabled(provider: String) {
+                providerState.value = true
+            }
+
+            override fun onProviderDisabled(provider: String) {
+                providerState.value = false
+            }
+        }
+}
+
+object CachedGeoLocations {
+    val locationNames = LruCache<String, String>(20)
+
+    fun cached(geoHashStr: String): String? {
+        return locationNames[geoHashStr]
+    }
+
+    suspend fun geoLocate(
+        geoHashStr: String,
+        location: Location,
+        context: Context,
+    ): String? {
+        locationNames[geoHashStr]?.let {
+            return it
+        }
+
+        val name = ReverseGeoLocationUtil().execute(location, context)?.ifBlank { null }
+
+        if (name != null) {
+            locationNames.put(geoHashStr, name)
+        }
+
+        return name
+    }
+}
+
+private class ReverseGeoLocationUtil {
+    suspend fun execute(
+        location: Location,
+        context: Context,
+    ): String? {
+        return try {
+            Geocoder(context)
+                .getFromLocation(location.latitude, location.longitude, 1)
+                ?.firstOrNull()
+                ?.let { address ->
+                    listOfNotNull(address.locality ?: address.subAdminArea, address.countryCode)
+                        .joinToString(", ")
+                }
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            e.printStackTrace()
+            return null
+        }
+    }
+}
@@ -0,0 +1,34 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.os.Looper
+import com.vitorpamplona.amethyst.BuildConfig
+
+fun checkNotInMainThread() {
+    if (BuildConfig.DEBUG && isMainThread()) {
+        throw OnMainThreadException("It should not be in the MainThread")
+    }
+}
+
+fun isMainThread() = Looper.myLooper() == Looper.getMainLooper()
+
+class OnMainThreadException(str: String) : RuntimeException(str)
@@ -0,0 +1,137 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import okhttp3.Request
+
+class Nip05NostrAddressVerifier {
+    fun assembleUrl(nip05address: String): String? {
+        val parts = nip05address.trim().split("@")
+
+        if (parts.size == 2) {
+            return "https://${parts[1]}/.well-known/nostr.json?name=${parts[0]}"
+        }
+        if (parts.size == 1) {
+            return "https://${parts[0]}/.well-known/nostr.json?name=_"
+        }
+
+        return null
+    }
+
+    suspend fun fetchNip05Json(
+        nip05: String,
+        onSuccess: suspend (String) -> Unit,
+        onError: (String) -> Unit,
+    ) = withContext(Dispatchers.IO) {
+        checkNotInMainThread()
+
+        val url = assembleUrl(nip05)
+
+        if (url == null) {
+            onError("Could not assemble url from Nip05: \"${nip05}\". Check the user's setup")
+            return@withContext
+        }
+
+        try {
+            val request =
+                Request
+                    .Builder()
+                    .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                    .url(url)
+                    .build()
+            // Fetchers MUST ignore any HTTP redirects given by the /.well-known/nostr.json endpoint.
+            HttpClientManager
+                .getHttpClient()
+                .newBuilder()
+                .followRedirects(false)
+                .build()
+                .newCall(request)
+                .execute()
+                .use {
+                    checkNotInMainThread()
+
+                    if (it.isSuccessful) {
+                        onSuccess(it.body.string())
+                    } else {
+                        onError(
+                            "Could not resolve $nip05. Error: ${it.code}. Check if the server is up and if the address $nip05 is correct",
+                        )
+                    }
+                }
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            onError("Could not resolve NIP-05 $nip05 as URL $url: ${e.message}")
+        }
+    }
+
+    suspend fun verifyNip05(
+        nip05: String,
+        onSuccess: suspend (String) -> Unit,
+        onError: (String) -> Unit,
+    ) {
+        // check fails on tests
+        checkNotInMainThread()
+
+        val mapper = jacksonObjectMapper()
+
+        fetchNip05Json(
+            nip05,
+            onSuccess = {
+                checkNotInMainThread()
+
+                // NIP05 usernames are case insensitive, but JSON properties are not
+                // converts the json to lowercase and then tries to access the username via a
+                // lowercase version of the username.
+                val nip05url =
+                    try {
+                        mapper.readTree(it.lowercase())
+                    } catch (e: Throwable) {
+                        if (e is CancellationException) throw e
+                        onError("Error Parsing JSON from Lightning Address. Check the user's lightning setup")
+                        null
+                    }
+
+                val parts = nip05.split("@")
+                val user =
+                    if (parts.size == 2) {
+                        parts[0].lowercase()
+                    } else {
+                        "_"
+                    }
+
+                val hexKey = nip05url?.get("names")?.get(user)?.asText()
+
+                if (hexKey == null) {
+                    onError("Username not found in the NIP05 JSON")
+                } else {
+                    onSuccess(hexKey)
+                }
+            },
+            onError = onError,
+        )
+    }
+}
@@ -0,0 +1,183 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.util.Log
+import android.util.LruCache
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.encoders.Nip11RelayInformation
+import com.vitorpamplona.quartz.encoders.RelayUrlFormatter
+import com.vitorpamplona.quartz.utils.TimeUtils
+import kotlinx.coroutines.CancellationException
+import okhttp3.Call
+import okhttp3.Callback
+import okhttp3.Request
+import okhttp3.Response
+import java.io.IOException
+
+object Nip11CachedRetriever {
+    open class RetrieveResult(
+        val time: Long,
+    )
+
+    class RetrieveResultError(
+        val error: Nip11Retriever.ErrorCode,
+        val msg: String? = null,
+    ) : RetrieveResult(TimeUtils.now())
+
+    class RetrieveResultSuccess(
+        val data: Nip11RelayInformation,
+    ) : RetrieveResult(TimeUtils.now())
+
+    class RetrieveResultLoading : RetrieveResult(TimeUtils.now())
+
+    private val relayInformationDocumentCache = LruCache<String, RetrieveResult?>(100)
+    private val retriever = Nip11Retriever()
+
+    fun getFromCache(dirtyUrl: String): Nip11RelayInformation? {
+        val result = relayInformationDocumentCache.get(RelayUrlFormatter.getHttpsUrl(dirtyUrl)) ?: return null
+        if (result is RetrieveResultSuccess) return result.data
+        return null
+    }
+
+    suspend fun loadRelayInfo(
+        dirtyUrl: String,
+        onInfo: (Nip11RelayInformation) -> Unit,
+        onError: (String, Nip11Retriever.ErrorCode, String?) -> Unit,
+    ) {
+        checkNotInMainThread()
+        val url = RelayUrlFormatter.getHttpsUrl(dirtyUrl)
+        val doc = relayInformationDocumentCache.get(url)
+
+        if (doc != null) {
+            if (doc is RetrieveResultSuccess) {
+                onInfo(doc.data)
+            } else if (doc is RetrieveResultLoading) {
+                if (TimeUtils.now() - doc.time < TimeUtils.ONE_MINUTE) {
+                    // just wait.
+                } else {
+                    retrieve(url, dirtyUrl, onInfo, onError)
+                }
+            } else if (doc is RetrieveResultError) {
+                if (TimeUtils.now() - doc.time < TimeUtils.ONE_HOUR) {
+                    onError(dirtyUrl, doc.error, null)
+                } else {
+                    retrieve(url, dirtyUrl, onInfo, onError)
+                }
+            }
+        } else {
+            retrieve(url, dirtyUrl, onInfo, onError)
+        }
+    }
+
+    private suspend fun retrieve(
+        url: String,
+        dirtyUrl: String,
+        onInfo: (Nip11RelayInformation) -> Unit,
+        onError: (String, Nip11Retriever.ErrorCode, String?) -> Unit,
+    ) {
+        relayInformationDocumentCache.put(url, RetrieveResultLoading())
+        retriever.loadRelayInfo(
+            url = url,
+            dirtyUrl = dirtyUrl,
+            onInfo = {
+                checkNotInMainThread()
+                relayInformationDocumentCache.put(url, RetrieveResultSuccess(it))
+                onInfo(it)
+            },
+            onError = { dirtyUrl, code, errorMsg ->
+                checkNotInMainThread()
+                relayInformationDocumentCache.put(url, RetrieveResultError(code, errorMsg))
+                onError(url, code, errorMsg)
+            },
+        )
+    }
+}
+
+class Nip11Retriever {
+    enum class ErrorCode {
+        FAIL_TO_ASSEMBLE_URL,
+        FAIL_TO_REACH_SERVER,
+        FAIL_TO_PARSE_RESULT,
+        FAIL_WITH_HTTP_STATUS,
+    }
+
+    suspend fun loadRelayInfo(
+        url: String,
+        dirtyUrl: String,
+        onInfo: (Nip11RelayInformation) -> Unit,
+        onError: (String, ErrorCode, String?) -> Unit,
+    ) {
+        checkNotInMainThread()
+        try {
+            val request: Request =
+                Request
+                    .Builder()
+                    .header("Accept", "application/nostr+json")
+                    .url(url)
+                    .build()
+
+            HttpClientManager
+                .getHttpClientForUrl(dirtyUrl)
+                .newCall(request)
+                .enqueue(
+                    object : Callback {
+                        override fun onResponse(
+                            call: Call,
+                            response: Response,
+                        ) {
+                            checkNotInMainThread()
+                            response.use {
+                                val body = it.body.string()
+                                try {
+                                    if (it.isSuccessful) {
+                                        onInfo(Nip11RelayInformation.fromJson(body))
+                                    } else {
+                                        onError(dirtyUrl, ErrorCode.FAIL_WITH_HTTP_STATUS, it.code.toString())
+                                    }
+                                } catch (e: Exception) {
+                                    if (e is CancellationException) throw e
+                                    Log.e(
+                                        "RelayInfoFail",
+                                        "Resulting Message from Relay $dirtyUrl in not parseable: $body",
+                                        e,
+                                    )
+                                    onError(dirtyUrl, ErrorCode.FAIL_TO_PARSE_RESULT, e.message)
+                                }
+                            }
+                        }
+
+                        override fun onFailure(
+                            call: Call,
+                            e: IOException,
+                        ) {
+                            Log.e("RelayInfoFail", "$dirtyUrl unavailable", e)
+                            onError(dirtyUrl, ErrorCode.FAIL_TO_REACH_SERVER, e.message)
+                        }
+                    },
+                )
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            Log.e("RelayInfoFail", "Invalid URL $dirtyUrl", e)
+            onError(dirtyUrl, ErrorCode.FAIL_TO_ASSEMBLE_URL, e.message)
+        }
+    }
+}
@@ -0,0 +1,115 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.util.Log
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.databind.DeserializationFeature
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import kotlinx.coroutines.CancellationException
+import okhttp3.Request
+
+object Nip96MediaServers {
+    val DEFAULT =
+        listOf(
+            ServerName("Nostr.Build", "https://nostr.build"),
+            ServerName("NostrCheck.me", "https://nostrcheck.me"),
+            ServerName("NostPic", "https://nostpic.com"),
+            ServerName("Sovbit", "https://files.sovbit.host"),
+            ServerName("Void.cat", "https://void.cat"),
+        )
+
+    data class ServerName(val name: String, val baseUrl: String)
+
+    val cache: MutableMap<String, Nip96Retriever.ServerInfo> = mutableMapOf()
+
+    suspend fun load(url: String): Nip96Retriever.ServerInfo {
+        val cached = cache[url]
+        if (cached != null) return cached
+
+        val fetched = Nip96Retriever().loadInfo(url)
+        cache[url] = fetched
+        return fetched
+    }
+}
+
+class Nip96Retriever {
+    data class ServerInfo(
+        @JsonProperty("api_url") val apiUrl: String,
+        @JsonProperty("download_url") val downloadUrl: String? = null,
+        @JsonProperty("delegated_to_url") val delegatedToUrl: String? = null,
+        @JsonProperty("supported_nips") val supportedNips: ArrayList<Int> = arrayListOf(),
+        @JsonProperty("tos_url") val tosUrl: String? = null,
+        @JsonProperty("content_types") val contentTypes: ArrayList<MimeType> = arrayListOf(),
+        @JsonProperty("plans") val plans: Map<PlanName, Plan> = mapOf(),
+    )
+
+    data class Plan(
+        @JsonProperty("name") val name: String? = null,
+        @JsonProperty("is_nip98_required") val isNip98Required: Boolean? = null,
+        @JsonProperty("url") val url: String? = null,
+        @JsonProperty("max_byte_size") val maxByteSize: Long? = null,
+        @JsonProperty("file_expiration") val fileExpiration: ArrayList<Int> = arrayListOf(),
+        @JsonProperty("media_transformations")
+        val mediaTransformations: Map<MimeType, Array<String>> = emptyMap(),
+    )
+
+    fun parse(body: String): ServerInfo {
+        val mapper =
+            jacksonObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+        return mapper.readValue(body, ServerInfo::class.java)
+    }
+
+    suspend fun loadInfo(baseUrl: String): ServerInfo {
+        checkNotInMainThread()
+
+        val request: Request =
+            Request.Builder()
+                .header("Accept", "application/nostr+json")
+                .url(baseUrl.removeSuffix("/") + "/.well-known/nostr/nip96.json")
+                .build()
+
+        HttpClientManager.getHttpClient().newCall(request).execute().use { response ->
+            checkNotInMainThread()
+            response.use {
+                val body = it.body.string()
+                try {
+                    if (it.isSuccessful) {
+                        return parse(body)
+                    } else {
+                        throw RuntimeException(
+                            "Resulting Message from $baseUrl is an error: ${response.code} ${response.message}",
+                        )
+                    }
+                } catch (e: Exception) {
+                    if (e is CancellationException) throw e
+                    Log.e("RelayInfoFail", "Resulting Message from $baseUrl in not parseable: $body", e)
+                    throw e
+                }
+            }
+        }
+    }
+}
+
+typealias PlanName = String
+
+typealias MimeType = String
@@ -0,0 +1,335 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.content.ContentResolver
+import android.content.Context
+import android.net.Uri
+import android.provider.OpenableColumns
+import android.webkit.MimeTypeMap
+import androidx.core.net.toFile
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.databind.DeserializationFeature
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlinx.coroutines.withTimeoutOrNull
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.MultipartBody
+import okhttp3.Request
+import okhttp3.RequestBody
+import okio.BufferedSink
+import okio.source
+import java.io.InputStream
+import java.util.Base64
+import kotlin.coroutines.resume
+
+val charPool: List<Char> = ('a'..'z') + ('A'..'Z') + ('0'..'9')
+
+fun randomChars() = List(16) { charPool.random() }.joinToString("")
+
+class Nip96Uploader(
+    val account: Account?,
+) {
+    suspend fun uploadImage(
+        uri: Uri,
+        contentType: String?,
+        size: Long?,
+        alt: String?,
+        sensitiveContent: String?,
+        server: Nip96MediaServers.ServerName,
+        contentResolver: ContentResolver,
+        onProgress: (percentage: Float) -> Unit,
+        context: Context,
+    ): PartialEvent {
+        val serverInfo =
+            Nip96Retriever()
+                .loadInfo(
+                    server.baseUrl,
+                )
+
+        return uploadImage(
+            uri,
+            contentType,
+            size,
+            alt,
+            sensitiveContent,
+            serverInfo,
+            contentResolver,
+            onProgress,
+            context,
+        )
+    }
+
+    suspend fun uploadImage(
+        uri: Uri,
+        contentType: String?,
+        size: Long?,
+        alt: String?,
+        sensitiveContent: String?,
+        server: Nip96Retriever.ServerInfo,
+        contentResolver: ContentResolver,
+        onProgress: (percentage: Float) -> Unit,
+        context: Context,
+    ): PartialEvent {
+        checkNotInMainThread()
+
+        val myContentType = contentType ?: contentResolver.getType(uri)
+        val imageInputStream = contentResolver.openInputStream(uri)
+
+        val length =
+            size
+                ?: contentResolver.query(uri, null, null, null, null)?.use {
+                    it.moveToFirst()
+                    val sizeIndex = it.getColumnIndex(OpenableColumns.SIZE)
+                    it.getLong(sizeIndex)
+                }
+                ?: kotlin.runCatching { uri.toFile().length() }.getOrNull() ?: 0
+
+        checkNotNull(imageInputStream) { "Can't open the image input stream" }
+
+        return uploadImage(
+            imageInputStream,
+            length,
+            myContentType,
+            alt,
+            sensitiveContent,
+            server,
+            onProgress,
+            context,
+        )
+    }
+
+    suspend fun uploadImage(
+        inputStream: InputStream,
+        length: Long,
+        contentType: String?,
+        alt: String?,
+        sensitiveContent: String?,
+        server: Nip96Retriever.ServerInfo,
+        onProgress: (percentage: Float) -> Unit,
+        context: Context,
+    ): PartialEvent {
+        checkNotInMainThread()
+
+        val fileName = randomChars()
+        val extension =
+            contentType?.let { MimeTypeMap.getSingleton().getExtensionFromMimeType(it) } ?: ""
+
+        val client = HttpClientManager.getHttpClient()
+        val requestBuilder = Request.Builder()
+
+        val requestBody: RequestBody =
+            MultipartBody
+                .Builder()
+                .setType(MultipartBody.FORM)
+                .addFormDataPart("expiration", "")
+                .addFormDataPart("size", length.toString())
+                .also { body ->
+                    alt?.let { body.addFormDataPart("alt", it) }
+                    sensitiveContent?.let { body.addFormDataPart("content-warning", it) }
+                    contentType?.let { body.addFormDataPart("content_type", it) }
+                }.addFormDataPart(
+                    "file",
+                    "$fileName.$extension",
+                    object : RequestBody() {
+                        override fun contentType() = contentType?.toMediaType()
+
+                        override fun contentLength() = length
+
+                        override fun writeTo(sink: BufferedSink) {
+                            inputStream.source().use(sink::writeAll)
+                        }
+                    },
+                ).build()
+
+        nip98Header(server.apiUrl)?.let { requestBuilder.addHeader("Authorization", it) }
+
+        requestBuilder
+            .addHeader("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+            .url(server.apiUrl)
+            .post(requestBody)
+
+        val request = requestBuilder.build()
+
+        client.newCall(request).execute().use { response ->
+            if (response.isSuccessful) {
+                response.body.use { body ->
+                    val str = body.string()
+                    val result = parseResults(str)
+
+                    if (!result.processingUrl.isNullOrBlank()) {
+                        return waitProcessing(result, server, onProgress)
+                    } else if (result.status == "success" && result.nip94Event != null) {
+                        return result.nip94Event
+                    } else {
+                        throw RuntimeException(stringRes(context, R.string.failed_to_upload_with_message, result.message))
+                    }
+                }
+            } else {
+                val explanation = HttpStatusMessages.resourceIdFor(response.code)
+                if (explanation != null) {
+                    throw RuntimeException(stringRes(context, R.string.failed_to_upload_with_message, stringRes(context, explanation)))
+                } else {
+                    throw RuntimeException(stringRes(context, R.string.failed_to_upload_with_message, response.code))
+                }
+            }
+        }
+    }
+
+    suspend fun delete(
+        hash: String,
+        contentType: String?,
+        server: Nip96Retriever.ServerInfo,
+        context: Context,
+    ): Boolean {
+        val extension =
+            contentType?.let { MimeTypeMap.getSingleton().getExtensionFromMimeType(it) } ?: ""
+
+        val client = HttpClientManager.getHttpClient()
+
+        val requestBuilder = Request.Builder()
+
+        nip98Header(server.apiUrl)?.let { requestBuilder.addHeader("Authorization", it) }
+
+        val request =
+            requestBuilder
+                .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                .url(server.apiUrl.removeSuffix("/") + "/$hash.$extension")
+                .delete()
+                .build()
+
+        client.newCall(request).execute().use { response ->
+            if (response.isSuccessful) {
+                response.body.use { body ->
+                    val str = body.string()
+                    val result = parseDeleteResults(str)
+                    return result.status == "success"
+                }
+            } else {
+                val explanation = HttpStatusMessages.resourceIdFor(response.code)
+                if (explanation != null) {
+                    throw RuntimeException(stringRes(context, R.string.failed_to_delete_with_message, stringRes(context, explanation)))
+                } else {
+                    throw RuntimeException(stringRes(context, R.string.failed_to_delete_with_message, response.code))
+                }
+            }
+        }
+    }
+
+    private suspend fun waitProcessing(
+        result: Nip96Result,
+        server: Nip96Retriever.ServerInfo,
+        onProgress: (percentage: Float) -> Unit,
+    ): PartialEvent {
+        val client = HttpClientManager.getHttpClient()
+        var currentResult = result
+
+        while (!result.processingUrl.isNullOrBlank() && (currentResult.percentage ?: 100) < 100) {
+            onProgress((currentResult.percentage ?: 100) / 100f)
+
+            val request: Request =
+                Request
+                    .Builder()
+                    .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                    .url(result.processingUrl)
+                    .build()
+
+            client.newCall(request).execute().use {
+                if (it.isSuccessful) {
+                    it.body.use { currentResult = parseResults(it.string()) }
+                }
+            }
+
+            delay(500)
+        }
+        onProgress((currentResult.percentage ?: 100) / 100f)
+
+        val nip94 = currentResult.nip94Event
+
+        if (nip94 != null) {
+            return nip94
+        } else {
+            throw RuntimeException("Error waiting for processing. Final result is unavailable")
+        }
+    }
+
+    suspend fun nip98Header(url: String): String? =
+        withTimeoutOrNull(5000) {
+            suspendCancellableCoroutine { continuation ->
+                nip98Header(url, "POST") { authorizationToken -> continuation.resume(authorizationToken) }
+            }
+        }
+
+    fun nip98Header(
+        url: String,
+        method: String,
+        file: ByteArray? = null,
+        onReady: (String?) -> Unit,
+    ) {
+        val myAccount = account
+
+        if (myAccount == null) {
+            onReady(null)
+            return
+        }
+
+        myAccount.createHTTPAuthorization(url, method, file) {
+            val encodedNIP98Event = Base64.getEncoder().encodeToString(it.toJson().toByteArray())
+            onReady("Nostr $encodedNIP98Event")
+        }
+    }
+
+    data class DeleteResult(
+        val status: String?,
+        val message: String?,
+    )
+
+    private fun parseDeleteResults(body: String): DeleteResult {
+        val mapper =
+            jacksonObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+        return mapper.readValue(body, DeleteResult::class.java)
+    }
+
+    data class Nip96Result(
+        val status: String? = null,
+        val message: String? = null,
+        @JsonProperty("processing_url") val processingUrl: String? = null,
+        val percentage: Int? = null,
+        @JsonProperty("nip94_event") val nip94Event: PartialEvent? = null,
+    )
+
+    class PartialEvent(
+        val tags: Array<Array<String>>? = null,
+        val content: String? = null,
+    )
+
+    private fun parseResults(body: String): Nip96Result {
+        val mapper =
+            jacksonObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+        return mapper.readValue(body, Nip96Result::class.java)
+    }
+}
@@ -0,0 +1,463 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
+import com.vitorpamplona.ammolite.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.ammolite.relays.Client
+import com.vitorpamplona.ammolite.relays.EOSETime
+import com.vitorpamplona.ammolite.relays.EVENT_FINDER_TYPES
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.Relay
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.events.AdvertisedRelayListEvent
+import com.vitorpamplona.quartz.events.BadgeAwardEvent
+import com.vitorpamplona.quartz.events.BadgeProfilesEvent
+import com.vitorpamplona.quartz.events.BookmarkListEvent
+import com.vitorpamplona.quartz.events.CalendarDateSlotEvent
+import com.vitorpamplona.quartz.events.CalendarRSVPEvent
+import com.vitorpamplona.quartz.events.CalendarTimeSlotEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ChatMessageRelayListEvent
+import com.vitorpamplona.quartz.events.ContactListEvent
+import com.vitorpamplona.quartz.events.DraftEvent
+import com.vitorpamplona.quartz.events.EmojiPackSelectionEvent
+import com.vitorpamplona.quartz.events.Event
+import com.vitorpamplona.quartz.events.EventInterface
+import com.vitorpamplona.quartz.events.FileServersEvent
+import com.vitorpamplona.quartz.events.GenericRepostEvent
+import com.vitorpamplona.quartz.events.GiftWrapEvent
+import com.vitorpamplona.quartz.events.GitIssueEvent
+import com.vitorpamplona.quartz.events.GitPatchEvent
+import com.vitorpamplona.quartz.events.GitReplyEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.LnZapPaymentResponseEvent
+import com.vitorpamplona.quartz.events.MetadataEvent
+import com.vitorpamplona.quartz.events.MuteListEvent
+import com.vitorpamplona.quartz.events.PeopleListEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.PrivateOutboxRelayListEvent
+import com.vitorpamplona.quartz.events.ReactionEvent
+import com.vitorpamplona.quartz.events.ReportEvent
+import com.vitorpamplona.quartz.events.RepostEvent
+import com.vitorpamplona.quartz.events.SealedGossipEvent
+import com.vitorpamplona.quartz.events.SearchRelayListEvent
+import com.vitorpamplona.quartz.events.StatusEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
+import com.vitorpamplona.quartz.utils.TimeUtils
+
+// TODO: Migrate this to a property of AccountVi
+object NostrAccountDataSource : AmethystNostrDataSource("AccountData") {
+    lateinit var account: Account
+    var otherAccounts = listOf<HexKey>()
+
+    val latestEOSEs = EOSEAccount()
+    val hasLoadedTheBasics = mutableMapOf<User, Boolean>()
+
+    fun createAccountContactListFilter(): TypedFilter =
+        TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    kinds = listOf(ContactListEvent.KIND),
+                    authors = listOf(account.userProfile().pubkeyHex),
+                    limit = 1,
+                ),
+        )
+
+    fun createAccountMetadataFilter(): TypedFilter =
+        TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    kinds = listOf(MetadataEvent.KIND),
+                    authors = listOf(account.userProfile().pubkeyHex),
+                    limit = 1,
+                ),
+        )
+
+    fun createAccountRelayListFilter(): TypedFilter =
+        TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    kinds =
+                        listOf(
+                            StatusEvent.KIND,
+                            AdvertisedRelayListEvent.KIND,
+                            ChatMessageRelayListEvent.KIND,
+                            SearchRelayListEvent.KIND,
+                            PrivateOutboxRelayListEvent.KIND,
+                        ),
+                    authors = listOf(account.userProfile().pubkeyHex),
+                    limit = 10,
+                ),
+        )
+
+    fun createOtherAccountsBaseFilter(): TypedFilter? {
+        val otherAuthors = otherAccounts.filter { it != account.userProfile().pubkeyHex }
+        if (otherAuthors.isEmpty()) return null
+        return TypedFilter(
+            types = EVENT_FINDER_TYPES,
+            filter =
+                Filter(
+                    kinds =
+                        listOf(
+                            MetadataEvent.KIND,
+                            ContactListEvent.KIND,
+                            AdvertisedRelayListEvent.KIND,
+                            ChatMessageRelayListEvent.KIND,
+                            SearchRelayListEvent.KIND,
+                            FileServersEvent.KIND,
+                            MuteListEvent.KIND,
+                            PeopleListEvent.KIND,
+                        ),
+                    authors = otherAuthors,
+                    limit = 100,
+                ),
+        )
+    }
+
+    fun createAccountSettingsFilter(): TypedFilter =
+        TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    kinds = listOf(BookmarkListEvent.KIND, PeopleListEvent.KIND, MuteListEvent.KIND, BadgeProfilesEvent.KIND, EmojiPackSelectionEvent.KIND),
+                    authors = listOf(account.userProfile().pubkeyHex),
+                    limit = 100,
+                ),
+        )
+
+    fun createAccountReportsFilter(): TypedFilter =
+        TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    kinds = listOf(DraftEvent.KIND, ReportEvent.KIND),
+                    authors = listOf(account.userProfile().pubkeyHex),
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultNotificationFollowList.value)
+                            ?.relayList,
+                ),
+        )
+
+    fun createAccountLastPostsListFilter(): TypedFilter =
+        TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    authors = listOf(account.userProfile().pubkeyHex),
+                    limit = 400,
+                ),
+        )
+
+    fun createNotificationFilter(): TypedFilter {
+        val since =
+            latestEOSEs.users[account.userProfile()]
+                ?.followList
+                ?.get(account.defaultNotificationFollowList.value)
+                ?.relayList
+                ?: account.connectToRelays.value.associate { it.url to EOSETime(TimeUtils.oneWeekAgo()) }
+
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    kinds =
+                        listOf(
+                            TextNoteEvent.KIND,
+                            PollNoteEvent.KIND,
+                            ReactionEvent.KIND,
+                            RepostEvent.KIND,
+                            GenericRepostEvent.KIND,
+                            ReportEvent.KIND,
+                            LnZapEvent.KIND,
+                            LnZapPaymentResponseEvent.KIND,
+                            ChannelMessageEvent.KIND,
+                            BadgeAwardEvent.KIND,
+                        ),
+                    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
+                    limit = 4000,
+                    since = since,
+                ),
+        )
+    }
+
+    fun createNotificationFilter2(): TypedFilter {
+        val since =
+            latestEOSEs.users[account.userProfile()]
+                ?.followList
+                ?.get(account.defaultNotificationFollowList.value)
+                ?.relayList
+                ?: account.connectToRelays.value.associate { it.url to EOSETime(TimeUtils.oneWeekAgo()) }
+                ?: account.convertLocalRelays().associate { it.url to EOSETime(TimeUtils.oneWeekAgo()) }
+
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    kinds =
+                        listOf(
+                            GitReplyEvent.KIND,
+                            GitIssueEvent.KIND,
+                            GitPatchEvent.KIND,
+                            HighlightEvent.KIND,
+                            CalendarDateSlotEvent.KIND,
+                            CalendarTimeSlotEvent.KIND,
+                            CalendarRSVPEvent.KIND,
+                        ),
+                    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
+                    limit = 400,
+                    since = since,
+                ),
+        )
+    }
+
+    fun createGiftWrapsToMeFilter() =
+        TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    kinds = listOf(GiftWrapEvent.KIND),
+                    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get("&&((GIFTWRAPS_EOSE))&&")
+                            ?.relayList
+                            ?.mapValues {
+                                EOSETime(it.value.time - TimeUtils.twoDays())
+                            },
+                ),
+        )
+
+    val accountChannel =
+        requestNewChannel { time, relayUrl ->
+            if (hasLoadedTheBasics[account.userProfile()] != null) {
+                latestEOSEs.addOrUpdate(
+                    account.userProfile(),
+                    account.defaultNotificationFollowList.value,
+                    relayUrl,
+                    time,
+                )
+
+                latestEOSEs.addOrUpdate(
+                    account.userProfile(),
+                    "&&((GIFTWRAPS_EOSE))&&",
+                    relayUrl,
+                    time,
+                )
+            } else {
+                hasLoadedTheBasics[account.userProfile()] = true
+
+                invalidateFilters()
+            }
+        }
+
+    override fun consume(
+        event: Event,
+        relay: Relay,
+    ) {
+        checkNotInMainThread()
+
+        if (LocalCache.justVerify(event)) {
+            when (event) {
+                is PrivateOutboxRelayListEvent -> {
+                    val note = LocalCache.getAddressableNoteIfExists(event.addressTag())
+                    val noteEvent = note?.event
+                    if (noteEvent == null || event.createdAt > noteEvent.createdAt()) {
+                        event.privateTags(account.signer) {
+                            LocalCache.justConsume(event, relay)
+                        }
+                    }
+                }
+
+                is DraftEvent -> {
+                    // Avoid decrypting over and over again if the event already exist.
+
+                    if (!event.isDeleted()) {
+                        val note = LocalCache.getAddressableNoteIfExists(event.addressTag())
+                        val noteEvent = note?.event
+                        if (noteEvent != null) {
+                            if (event.createdAt > noteEvent.createdAt() || relay.brief !in note.relays) {
+                                LocalCache.consume(event, relay)
+                            }
+                        } else {
+                            // decrypts
+                            event.cachedDraft(account.signer) {}
+
+                            LocalCache.justConsume(event, relay)
+                        }
+                    }
+                }
+
+                is GiftWrapEvent -> {
+                    // Avoid decrypting over and over again if the event already exist.
+                    val note = LocalCache.getNoteIfExists(event.id)
+                    val noteEvent = note?.event as? GiftWrapEvent
+                    if (noteEvent != null) {
+                        if (relay.brief !in note.relays) {
+                            noteEvent.cachedGift(account.signer) {
+                                LocalCache.justConsume(noteEvent, relay)
+                                this.consume(it, relay)
+                            }
+                        }
+                    } else {
+                        // new event
+                        event.cachedGift(account.signer) {
+                            LocalCache.justConsume(event, relay)
+                            this.consume(it, relay)
+                        }
+                    }
+                }
+
+                is SealedGossipEvent -> {
+                    // Avoid decrypting over and over again if the event already exist.
+                    val note = LocalCache.getNoteIfExists(event.id)
+                    val noteEvent = note?.event as? SealedGossipEvent
+                    if (noteEvent != null) {
+                        if (relay.brief !in note.relays) {
+                            // adds the relay to seal and inner chat
+                            noteEvent.cachedGossip(account.signer) {
+                                LocalCache.consume(noteEvent, relay)
+                                LocalCache.justConsume(it, relay)
+                            }
+                        }
+                    } else {
+                        // new event
+                        event.cachedGossip(account.signer) {
+                            LocalCache.justConsume(event, relay)
+                            LocalCache.justConsume(it, relay)
+                        }
+                    }
+                }
+
+                is LnZapEvent -> {
+                    // Avoid decrypting over and over again if the event already exist.
+                    val note = LocalCache.getNoteIfExists(event.id)
+                    if (note?.event == null) {
+                        event.zapRequest?.let {
+                            if (it.isPrivateZap()) {
+                                it.decryptPrivateZap(account.signer) {}
+                            }
+                        }
+
+                        LocalCache.justConsume(event, relay)
+                    }
+                }
+
+                else -> {
+                    LocalCache.justConsume(event, relay)
+                }
+            }
+        }
+    }
+
+    override fun markAsSeenOnRelay(
+        eventId: String,
+        relay: Relay,
+    ) {
+        checkNotInMainThread()
+
+        super.markAsSeenOnRelay(eventId, relay)
+
+        val note = LocalCache.getNoteIfExists(eventId) ?: return
+        val noteEvent = note.event ?: return
+        markInnerAsSeenOnRelay(noteEvent, relay)
+    }
+
+    private fun markInnerAsSeenOnRelay(
+        noteEvent: EventInterface,
+        relay: Relay,
+    ) {
+        LocalCache.getNoteIfExists(noteEvent.id())?.addRelay(relay)
+
+        if (noteEvent is GiftWrapEvent) {
+            noteEvent.cachedGift(account.signer) { gift -> markInnerAsSeenOnRelay(gift, relay) }
+        } else if (noteEvent is SealedGossipEvent) {
+            noteEvent.cachedGossip(account.signer) { rumor ->
+                markInnerAsSeenOnRelay(rumor, relay)
+            }
+        }
+    }
+
+    override fun updateChannelFilters() =
+        if (hasLoadedTheBasics[account.userProfile()] != null) {
+            // gets everything about the user logged in
+            accountChannel.typedFilters =
+                listOfNotNull(
+                    createAccountMetadataFilter(),
+                    createAccountContactListFilter(),
+                    createAccountRelayListFilter(),
+                    createNotificationFilter(),
+                    createNotificationFilter2(),
+                    createGiftWrapsToMeFilter(),
+                    createAccountReportsFilter(),
+                    createAccountSettingsFilter(),
+                    createAccountLastPostsListFilter(),
+                    createOtherAccountsBaseFilter(),
+                ).ifEmpty { null }
+        } else {
+            // just the basics.
+            accountChannel.typedFilters =
+                listOf(
+                    createAccountMetadataFilter(),
+                    createAccountContactListFilter(),
+                    createAccountRelayListFilter(),
+                    createAccountSettingsFilter(),
+                ).ifEmpty { null }
+        }
+
+    override fun auth(
+        relay: Relay,
+        challenge: String,
+    ) {
+        super.auth(relay, challenge)
+
+        if (this::account.isInitialized) {
+            account.createAuthEvent(relay, challenge) {
+                Client.send(
+                    it,
+                    relay.url,
+                )
+            }
+        }
+    }
+
+    override fun notify(
+        relay: Relay,
+        description: String,
+    ) {
+        super.notify(relay, description)
+
+        if (this::account.isInitialized) {
+            account.addPaymentRequestIfNew(Account.PaymentRequest(relay.url, description))
+        }
+    }
+}
@@ -0,0 +1,118 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.Channel
+import com.vitorpamplona.amethyst.model.LiveActivitiesChannel
+import com.vitorpamplona.amethyst.model.PublicChatChannel
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+
+object NostrChannelDataSource : AmethystNostrDataSource("ChatroomFeed") {
+    var account: Account? = null
+    var channel: Channel? = null
+
+    fun loadMessagesBetween(
+        account: Account,
+        channel: Channel,
+    ) {
+        this.account = account
+        this.channel = channel
+        resetFilters()
+    }
+
+    fun clear() {
+        account = null
+        channel = null
+    }
+
+    fun createMessagesByMeToChannelFilter(): TypedFilter? {
+        val myAccount = account ?: return null
+
+        if (channel is PublicChatChannel) {
+            // Brings on messages by the user from all other relays.
+            // Since we ship with write to public, read from private only
+            // this guarantees that messages from the author do not disappear.
+            return TypedFilter(
+                types = setOf(FeedType.FOLLOWS, FeedType.PRIVATE_DMS, FeedType.GLOBAL, FeedType.SEARCH),
+                filter =
+                    Filter(
+                        kinds = listOf(ChannelMessageEvent.KIND),
+                        authors = listOf(myAccount.userProfile().pubkeyHex),
+                        limit = 50,
+                    ),
+            )
+        } else if (channel is LiveActivitiesChannel) {
+            // Brings on messages by the user from all other relays.
+            // Since we ship with write to public, read from private only
+            // this guarantees that messages from the author do not disappear.
+            return TypedFilter(
+                types = setOf(FeedType.FOLLOWS, FeedType.PRIVATE_DMS, FeedType.GLOBAL, FeedType.SEARCH),
+                filter =
+                    Filter(
+                        kinds = listOf(LiveActivitiesChatMessageEvent.KIND),
+                        authors = listOf(myAccount.userProfile().pubkeyHex),
+                        limit = 50,
+                    ),
+            )
+        }
+        return null
+    }
+
+    fun createMessagesToChannelFilter(): TypedFilter? {
+        if (channel is PublicChatChannel) {
+            return TypedFilter(
+                types = setOf(FeedType.PUBLIC_CHATS),
+                filter =
+                    Filter(
+                        kinds = listOf(ChannelMessageEvent.KIND),
+                        tags = mapOf("e" to listOfNotNull(channel?.idHex)),
+                        limit = 200,
+                    ),
+            )
+        } else if (channel is LiveActivitiesChannel) {
+            return TypedFilter(
+                types = setOf(FeedType.PUBLIC_CHATS),
+                filter =
+                    Filter(
+                        kinds = listOf(LiveActivitiesChatMessageEvent.KIND),
+                        tags = mapOf("a" to listOfNotNull(channel?.idHex)),
+                        limit = 200,
+                    ),
+            )
+        }
+        return null
+    }
+
+    val messagesChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        messagesChannel.typedFilters =
+            listOfNotNull(
+                createMessagesToChannelFilter(),
+                createMessagesByMeToChannelFilter(),
+            ).ifEmpty { null }
+    }
+}
@@ -0,0 +1,108 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChatroomKey
+import com.vitorpamplona.quartz.events.PrivateDmEvent
+
+object NostrChatroomDataSource : AmethystNostrDataSource("ChatroomFeed") {
+    lateinit var account: Account
+    private var withRoom: ChatroomKey? = null
+
+    private val latestEOSEs = EOSEAccount()
+
+    fun loadMessagesBetween(
+        accountIn: Account,
+        withRoom: ChatroomKey,
+    ) {
+        this.account = accountIn
+        this.withRoom = withRoom
+        resetFilters()
+    }
+
+    fun createMessagesToMeFilter(): TypedFilter? {
+        val myPeer = withRoom
+
+        return if (myPeer != null) {
+            TypedFilter(
+                types = setOf(FeedType.PRIVATE_DMS),
+                filter =
+                    Filter(
+                        kinds = listOf(PrivateDmEvent.KIND),
+                        authors = myPeer.users.toList(),
+                        tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
+                        since =
+                            latestEOSEs.users[account.userProfile()]
+                                ?.followList
+                                ?.get(withRoom.hashCode().toString())
+                                ?.relayList,
+                    ),
+            )
+        } else {
+            null
+        }
+    }
+
+    fun createMessagesFromMeFilter(): TypedFilter? {
+        val myPeer = withRoom
+
+        return if (myPeer != null) {
+            TypedFilter(
+                types = setOf(FeedType.PRIVATE_DMS),
+                filter =
+                    Filter(
+                        kinds = listOf(PrivateDmEvent.KIND),
+                        authors = listOf(account.userProfile().pubkeyHex),
+                        tags = mapOf("p" to myPeer.users.map { it }),
+                        since =
+                            latestEOSEs.users[account.userProfile()]
+                                ?.followList
+                                ?.get(withRoom.hashCode().toString())
+                                ?.relayList,
+                    ),
+            )
+        } else {
+            null
+        }
+    }
+
+    fun clearEOSEs(account: Account) {
+        latestEOSEs.removeDataFor(account.userProfile())
+    }
+
+    val inandoutChannel =
+        requestNewChannel { time, relayUrl ->
+            latestEOSEs.addOrUpdate(account.userProfile(), withRoom.hashCode().toString(), relayUrl, time)
+        }
+
+    override fun updateChannelFilters() {
+        inandoutChannel.typedFilters =
+            listOfNotNull(
+                createMessagesToMeFilter(),
+                createMessagesFromMeFilter(),
+            ).ifEmpty { null }
+    }
+}
@@ -0,0 +1,170 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
+import com.vitorpamplona.ammolite.relays.EVENT_FINDER_TYPES
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ChannelMetadataEvent
+import com.vitorpamplona.quartz.events.PrivateDmEvent
+
+object NostrChatroomListDataSource : AmethystNostrDataSource("MailBoxFeed") {
+    lateinit var account: Account
+
+    val latestEOSEs = EOSEAccount()
+    val chatRoomList = "ChatroomList"
+
+    fun createMessagesToMeFilter() =
+        TypedFilter(
+            types = setOf(FeedType.PRIVATE_DMS),
+            filter =
+                Filter(
+                    kinds = listOf(PrivateDmEvent.KIND),
+                    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(chatRoomList)
+                            ?.relayList,
+                ),
+        )
+
+    fun createMessagesFromMeFilter() =
+        TypedFilter(
+            types = setOf(FeedType.PRIVATE_DMS),
+            filter =
+                Filter(
+                    kinds = listOf(PrivateDmEvent.KIND),
+                    authors = listOf(account.userProfile().pubkeyHex),
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(chatRoomList)
+                            ?.relayList,
+                ),
+        )
+
+    fun createChannelsCreatedbyMeFilter() =
+        TypedFilter(
+            types = setOf(FeedType.PUBLIC_CHATS),
+            filter =
+                Filter(
+                    kinds = listOf(ChannelCreateEvent.KIND, ChannelMetadataEvent.KIND),
+                    authors = listOf(account.userProfile().pubkeyHex),
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(chatRoomList)
+                            ?.relayList,
+                ),
+        )
+
+    fun createMyChannelsFilter(): TypedFilter? {
+        val followingEvents = account.selectedChatsFollowList()
+
+        if (followingEvents.isEmpty()) return null
+
+        return TypedFilter(
+            // Metadata comes from any relay
+            types = EVENT_FINDER_TYPES,
+            filter =
+                Filter(
+                    kinds = listOf(ChannelCreateEvent.KIND),
+                    ids = followingEvents.toList(),
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(chatRoomList)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createLastChannelInfoFilter(): List<TypedFilter>? {
+        val followingEvents = account.selectedChatsFollowList()
+
+        if (followingEvents.isEmpty()) return null
+
+        return followingEvents.map {
+            TypedFilter(
+                // Metadata comes from any relay
+                types = EVENT_FINDER_TYPES,
+                filter =
+                    Filter(
+                        kinds = listOf(ChannelMetadataEvent.KIND),
+                        tags = mapOf("e" to listOf(it)),
+                        limit = 1,
+                    ),
+            )
+        }
+    }
+
+    fun createLastMessageOfEachChannelFilter(): List<TypedFilter>? {
+        val followingEvents = account.selectedChatsFollowList()
+
+        if (followingEvents.isEmpty()) return null
+
+        return followingEvents.map {
+            TypedFilter(
+                types = setOf(FeedType.PUBLIC_CHATS),
+                filter =
+                    Filter(
+                        kinds = listOf(ChannelMessageEvent.KIND),
+                        tags = mapOf("e" to listOf(it)),
+                        since =
+                            latestEOSEs.users[account.userProfile()]
+                                ?.followList
+                                ?.get(chatRoomList)
+                                ?.relayList,
+                        // Remember to consider spam that is being removed from the UI
+                        limit = 50,
+                    ),
+            )
+        }
+    }
+
+    val chatroomListChannel =
+        requestNewChannel { time, relayUrl ->
+            latestEOSEs.addOrUpdate(account.userProfile(), chatRoomList, relayUrl, time)
+        }
+
+    override fun updateChannelFilters() {
+        val list =
+            listOfNotNull(
+                createMessagesToMeFilter(),
+                createMessagesFromMeFilter(),
+                createMyChannelsFilter(),
+            )
+
+        chatroomListChannel.typedFilters =
+            listOfNotNull(
+                list,
+                createLastChannelInfoFilter(),
+                createLastMessageOfEachChannelFilter(),
+            ).flatten()
+                .ifEmpty { null }
+    }
+}
@@ -0,0 +1,67 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.AddressableNote
+import com.vitorpamplona.ammolite.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
+
+object NostrCommunityDataSource : AmethystNostrDataSource("SingleCommunityFeed") {
+    private var communityToWatch: AddressableNote? = null
+
+    private fun createLoadCommunityFilter(): TypedFilter? {
+        val myCommunityToWatch = communityToWatch ?: return null
+
+        val community = myCommunityToWatch.event as? CommunityDefinitionEvent ?: return null
+
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    authors =
+                        community
+                            .moderators()
+                            .map { it.key }
+                            .plus(listOfNotNull(myCommunityToWatch.author?.pubkeyHex)),
+                    tags =
+                        mapOf(
+                            "a" to listOf(myCommunityToWatch.address.toTag()),
+                        ),
+                    kinds = listOf(CommunityPostApprovalEvent.KIND),
+                    limit = 500,
+                ),
+        )
+    }
+
+    val loadCommunityChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        loadCommunityChannel.typedFilters = listOfNotNull(createLoadCommunityFilter()).ifEmpty { null }
+    }
+
+    fun loadCommunity(note: AddressableNote?) {
+        communityToWatch = note
+        invalidateFilters()
+    }
+}
@@ -0,0 +1,478 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.Amethyst
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AppDefinitionEvent
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ChannelMetadataEvent
+import com.vitorpamplona.quartz.events.ClassifiedsEvent
+import com.vitorpamplona.quartz.events.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesEvent
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+
+object NostrDiscoveryDataSource : AmethystNostrDataSource("DiscoveryFeed") {
+    lateinit var account: Account
+
+    val scope = Amethyst.instance.applicationIOScope
+    val latestEOSEs = EOSEAccount()
+
+    var job: Job? = null
+
+    override fun start() {
+        job?.cancel()
+        job =
+            scope.launch(Dispatchers.IO) {
+                account.liveDiscoveryFollowLists.collect {
+                    if (this@NostrDiscoveryDataSource::account.isInitialized) {
+                        invalidateFilters()
+                    }
+                }
+            }
+        super.start()
+    }
+
+    override fun stop() {
+        super.stop()
+        job?.cancel()
+    }
+
+    fun createMarketplaceFilter(): List<TypedFilter> {
+        val follows =
+            account.liveDiscoveryFollowLists.value
+                ?.users
+                ?.toList()
+        val hashToLoad =
+            account.liveDiscoveryFollowLists.value
+                ?.hashtags
+                ?.toList()
+        val geohashToLoad =
+            account.liveDiscoveryFollowLists.value
+                ?.geotags
+                ?.toList()
+
+        return listOfNotNull(
+            TypedFilter(
+                types = setOf(FeedType.GLOBAL),
+                filter =
+                    Filter(
+                        authors = follows,
+                        kinds = listOf(ClassifiedsEvent.KIND),
+                        limit = 300,
+                        since =
+                            latestEOSEs.users[account.userProfile()]
+                                ?.followList
+                                ?.get(account.defaultDiscoveryFollowList.value)
+                                ?.relayList,
+                    ),
+            ),
+            hashToLoad?.let {
+                TypedFilter(
+                    types = setOf(FeedType.GLOBAL),
+                    filter =
+                        Filter(
+                            kinds = listOf(ClassifiedsEvent.KIND),
+                            tags =
+                                mapOf(
+                                    "t" to
+                                        it
+                                            .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                            .flatten(),
+                                ),
+                            limit = 300,
+                            since =
+                                latestEOSEs.users[account.userProfile()]
+                                    ?.followList
+                                    ?.get(account.defaultDiscoveryFollowList.value)
+                                    ?.relayList,
+                        ),
+                )
+            },
+            geohashToLoad?.let {
+                TypedFilter(
+                    types = setOf(FeedType.GLOBAL),
+                    filter =
+                        Filter(
+                            kinds = listOf(ClassifiedsEvent.KIND),
+                            tags =
+                                mapOf(
+                                    "g" to
+                                        it
+                                            .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                            .flatten(),
+                                ),
+                            limit = 300,
+                            since =
+                                latestEOSEs.users[account.userProfile()]
+                                    ?.followList
+                                    ?.get(account.defaultDiscoveryFollowList.value)
+                                    ?.relayList,
+                        ),
+                )
+            },
+        )
+    }
+
+    fun createNIP89Filter(kTags: List<String>): List<TypedFilter> =
+        listOfNotNull(
+            TypedFilter(
+                types = setOf(FeedType.GLOBAL),
+                filter =
+                    Filter(
+                        kinds = listOf(AppDefinitionEvent.KIND),
+                        limit = 300,
+                        tags = mapOf("k" to kTags),
+                        since =
+                            latestEOSEs.users[account.userProfile()]
+                                ?.followList
+                                ?.get(account.defaultDiscoveryFollowList.value)
+                                ?.relayList,
+                    ),
+            ),
+        )
+
+    fun createLiveStreamFilter(): List<TypedFilter> {
+        val follows =
+            account.liveDiscoveryFollowLists.value
+                ?.users
+                ?.toList()
+
+        return listOfNotNull(
+            TypedFilter(
+                types = setOf(FeedType.GLOBAL),
+                filter =
+                    Filter(
+                        authors = follows,
+                        kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND),
+                        limit = 300,
+                        since =
+                            latestEOSEs.users[account.userProfile()]
+                                ?.followList
+                                ?.get(account.defaultDiscoveryFollowList.value)
+                                ?.relayList,
+                    ),
+            ),
+            follows?.let {
+                TypedFilter(
+                    types = setOf(FeedType.GLOBAL),
+                    filter =
+                        Filter(
+                            tags = mapOf("p" to it),
+                            kinds = listOf(LiveActivitiesEvent.KIND),
+                            limit = 100,
+                            since =
+                                latestEOSEs.users[account.userProfile()]
+                                    ?.followList
+                                    ?.get(account.defaultDiscoveryFollowList.value)
+                                    ?.relayList,
+                        ),
+                )
+            },
+        )
+    }
+
+    fun createPublicChatFilter(): List<TypedFilter> {
+        val follows =
+            account.liveDiscoveryFollowLists.value
+                ?.users
+                ?.toList()
+        val followChats = account.selectedChatsFollowList().toList()
+
+        return listOfNotNull(
+            TypedFilter(
+                types = setOf(FeedType.PUBLIC_CHATS),
+                filter =
+                    Filter(
+                        authors = follows,
+                        kinds = listOf(ChannelMessageEvent.KIND),
+                        limit = 500,
+                        since =
+                            latestEOSEs.users[account.userProfile()]
+                                ?.followList
+                                ?.get(account.defaultDiscoveryFollowList.value)
+                                ?.relayList,
+                    ),
+            ),
+            if (followChats.isNotEmpty()) {
+                TypedFilter(
+                    types = setOf(FeedType.PUBLIC_CHATS),
+                    filter =
+                        Filter(
+                            ids = followChats,
+                            kinds = listOf(ChannelCreateEvent.KIND, ChannelMessageEvent.KIND),
+                            limit = 300,
+                            since =
+                                latestEOSEs.users[account.userProfile()]
+                                    ?.followList
+                                    ?.get(account.defaultDiscoveryFollowList.value)
+                                    ?.relayList,
+                        ),
+                )
+            } else {
+                null
+            },
+        )
+    }
+
+    fun createCommunitiesFilter(): TypedFilter {
+        val follows =
+            account.liveDiscoveryFollowLists.value
+                ?.users
+                ?.toList()
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter =
+                Filter(
+                    authors = follows,
+                    kinds = listOf(CommunityDefinitionEvent.KIND, CommunityPostApprovalEvent.KIND),
+                    limit = 300,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultDiscoveryFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createLiveStreamTagsFilter(): TypedFilter? {
+        val hashToLoad =
+            account.liveDiscoveryFollowLists.value
+                ?.hashtags
+                ?.toList()
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter =
+                Filter(
+                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND),
+                    tags =
+                        mapOf(
+                            "t" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                        ),
+                    limit = 300,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultDiscoveryFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createLiveStreamGeohashesFilter(): TypedFilter? {
+        val hashToLoad =
+            account.liveDiscoveryFollowLists.value
+                ?.geotags
+                ?.toList()
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter =
+                Filter(
+                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND),
+                    tags =
+                        mapOf(
+                            "g" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                        ),
+                    limit = 300,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultDiscoveryFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createPublicChatsTagsFilter(): TypedFilter? {
+        val hashToLoad =
+            account.liveDiscoveryFollowLists.value
+                ?.hashtags
+                ?.toList()
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.PUBLIC_CHATS),
+            filter =
+                Filter(
+                    kinds =
+                        listOf(ChannelCreateEvent.KIND, ChannelMetadataEvent.KIND, ChannelMessageEvent.KIND),
+                    tags =
+                        mapOf(
+                            "t" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                        ),
+                    limit = 300,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultDiscoveryFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createPublicChatsGeohashesFilter(): TypedFilter? {
+        val hashToLoad =
+            account.liveDiscoveryFollowLists.value
+                ?.geotags
+                ?.toList()
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.PUBLIC_CHATS),
+            filter =
+                Filter(
+                    kinds =
+                        listOf(ChannelCreateEvent.KIND, ChannelMetadataEvent.KIND, ChannelMessageEvent.KIND),
+                    tags =
+                        mapOf(
+                            "g" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                        ),
+                    limit = 300,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultDiscoveryFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createCommunitiesTagsFilter(): TypedFilter? {
+        val hashToLoad =
+            account.liveDiscoveryFollowLists.value
+                ?.hashtags
+                ?.toList()
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter =
+                Filter(
+                    kinds = listOf(CommunityDefinitionEvent.KIND, CommunityPostApprovalEvent.KIND),
+                    tags =
+                        mapOf(
+                            "t" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                        ),
+                    limit = 300,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultDiscoveryFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createCommunitiesGeohashesFilter(): TypedFilter? {
+        val hashToLoad =
+            account.liveDiscoveryFollowLists.value
+                ?.geotags
+                ?.toList()
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter =
+                Filter(
+                    kinds = listOf(CommunityDefinitionEvent.KIND, CommunityPostApprovalEvent.KIND),
+                    tags =
+                        mapOf(
+                            "g" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                        ),
+                    limit = 300,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultDiscoveryFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    val discoveryFeedChannel =
+        requestNewChannel { time, relayUrl ->
+            latestEOSEs.addOrUpdate(
+                account.userProfile(),
+                account.defaultDiscoveryFollowList.value,
+                relayUrl,
+                time,
+            )
+        }
+
+    override fun updateChannelFilters() {
+        discoveryFeedChannel.typedFilters =
+            createLiveStreamFilter()
+                .plus(createNIP89Filter(listOf("5300")))
+                .plus(createPublicChatFilter())
+                .plus(createMarketplaceFilter())
+                .plus(
+                    listOfNotNull(
+                        createLiveStreamTagsFilter(),
+                        createLiveStreamGeohashesFilter(),
+                        createCommunitiesFilter(),
+                        createCommunitiesTagsFilter(),
+                        createCommunitiesGeohashesFilter(),
+                        createPublicChatsTagsFilter(),
+                        createPublicChatsGeohashesFilter(),
+                    ),
+                ).toList()
+                .ifEmpty { null }
+    }
+}
@@ -0,0 +1,83 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.ammolite.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AudioHeaderEvent
+import com.vitorpamplona.quartz.events.AudioTrackEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ClassifiedsEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LongTextNoteEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
+import com.vitorpamplona.quartz.events.WikiNoteEvent
+
+object NostrGeohashDataSource : AmethystNostrDataSource("SingleGeoHashFeed") {
+    private var geohashToWatch: String? = null
+
+    fun createLoadHashtagFilter(): TypedFilter? {
+        val hashToLoad = geohashToWatch ?: return null
+
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    tags =
+                        mapOf(
+                            "g" to
+                                listOf(
+                                    hashToLoad,
+                                ),
+                        ),
+                    kinds =
+                        listOf(
+                            TextNoteEvent.KIND,
+                            ChannelMessageEvent.KIND,
+                            LongTextNoteEvent.KIND,
+                            PollNoteEvent.KIND,
+                            LiveActivitiesChatMessageEvent.KIND,
+                            ClassifiedsEvent.KIND,
+                            HighlightEvent.KIND,
+                            AudioTrackEvent.KIND,
+                            AudioHeaderEvent.KIND,
+                            WikiNoteEvent.KIND,
+                        ),
+                    limit = 200,
+                ),
+        )
+    }
+
+    val loadGeohashChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        loadGeohashChannel.typedFilters = listOfNotNull(createLoadHashtagFilter()).ifEmpty { null }
+    }
+
+    fun loadHashtag(tag: String?) {
+        geohashToWatch = tag
+
+        invalidateFilters()
+    }
+}
@@ -0,0 +1,86 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.ammolite.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AudioHeaderEvent
+import com.vitorpamplona.quartz.events.AudioTrackEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ClassifiedsEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LongTextNoteEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
+import com.vitorpamplona.quartz.events.WikiNoteEvent
+
+object NostrHashtagDataSource : AmethystNostrDataSource("SingleHashtagFeed") {
+    private var hashtagToWatch: String? = null
+
+    fun createLoadHashtagFilter(): TypedFilter? {
+        val hashToLoad = hashtagToWatch ?: return null
+
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    tags =
+                        mapOf(
+                            "t" to
+                                listOf(
+                                    hashToLoad,
+                                    hashToLoad.lowercase(),
+                                    hashToLoad.uppercase(),
+                                    hashToLoad.capitalize(),
+                                ),
+                        ),
+                    kinds =
+                        listOf(
+                            TextNoteEvent.KIND,
+                            ChannelMessageEvent.KIND,
+                            LongTextNoteEvent.KIND,
+                            PollNoteEvent.KIND,
+                            LiveActivitiesChatMessageEvent.KIND,
+                            ClassifiedsEvent.KIND,
+                            HighlightEvent.KIND,
+                            AudioTrackEvent.KIND,
+                            AudioHeaderEvent.KIND,
+                            WikiNoteEvent.KIND,
+                        ),
+                    limit = 200,
+                ),
+        )
+    }
+
+    val loadHashtagChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        loadHashtagChannel.typedFilters = listOfNotNull(createLoadHashtagFilter()).ifEmpty { null }
+    }
+
+    fun loadHashtag(tag: String?) {
+        hashtagToWatch = tag
+
+        invalidateFilters()
+    }
+}
@@ -0,0 +1,243 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.Amethyst
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AudioHeaderEvent
+import com.vitorpamplona.quartz.events.AudioTrackEvent
+import com.vitorpamplona.quartz.events.ClassifiedsEvent
+import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.events.GenericRepostEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesEvent
+import com.vitorpamplona.quartz.events.LongTextNoteEvent
+import com.vitorpamplona.quartz.events.PinListEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.RepostEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
+import com.vitorpamplona.quartz.events.WikiNoteEvent
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+object NostrHomeDataSource : AmethystNostrDataSource("HomeFeed") {
+    lateinit var account: Account
+
+    val scope = Amethyst.instance.applicationIOScope
+    val latestEOSEs = EOSEAccount()
+
+    var job: Job? = null
+
+    override fun start() {
+        job?.cancel()
+        job =
+            scope.launch(Dispatchers.IO) {
+                // creates cache on main
+                withContext(Dispatchers.Main) { account.userProfile().live() }
+                account.liveHomeFollowLists.collect {
+                    if (this@NostrHomeDataSource::account.isInitialized) {
+                        invalidateFilters()
+                    }
+                }
+            }
+        super.start()
+    }
+
+    override fun stop() {
+        super.stop()
+        job?.cancel()
+    }
+
+    fun createFollowAccountsFilter(): TypedFilter {
+        val follows = account.liveHomeFollowLists.value?.users
+        val followSet = follows?.plus(account.userProfile().pubkeyHex)?.toList()?.ifEmpty { null }
+
+        return TypedFilter(
+            types = setOf(if (follows == null) FeedType.GLOBAL else FeedType.FOLLOWS),
+            filter =
+                Filter(
+                    kinds =
+                        listOf(
+                            TextNoteEvent.KIND,
+                            RepostEvent.KIND,
+                            GenericRepostEvent.KIND,
+                            ClassifiedsEvent.KIND,
+                            LongTextNoteEvent.KIND,
+                            PollNoteEvent.KIND,
+                            HighlightEvent.KIND,
+                            AudioTrackEvent.KIND,
+                            AudioHeaderEvent.KIND,
+                            PinListEvent.KIND,
+                            LiveActivitiesChatMessageEvent.KIND,
+                            LiveActivitiesEvent.KIND,
+                            WikiNoteEvent.KIND,
+                        ),
+                    authors = followSet,
+                    limit = 400,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultHomeFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createFollowTagsFilter(): TypedFilter? {
+        val hashToLoad = account.liveHomeFollowLists.value?.hashtags ?: return null
+
+        if (hashToLoad.isEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.FOLLOWS),
+            filter =
+                Filter(
+                    kinds =
+                        listOf(
+                            TextNoteEvent.KIND,
+                            RepostEvent.KIND,
+                            GenericRepostEvent.KIND,
+                            LongTextNoteEvent.KIND,
+                            ClassifiedsEvent.KIND,
+                            HighlightEvent.KIND,
+                            AudioHeaderEvent.KIND,
+                            AudioTrackEvent.KIND,
+                            PinListEvent.KIND,
+                            WikiNoteEvent.KIND,
+                        ),
+                    tags =
+                        mapOf(
+                            "t" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                        ),
+                    limit = 100,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultHomeFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createFollowGeohashesFilter(): TypedFilter? {
+        val hashToLoad = account.liveHomeFollowLists.value?.geotags ?: return null
+
+        if (hashToLoad.isEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.FOLLOWS),
+            filter =
+                Filter(
+                    kinds =
+                        listOf(
+                            TextNoteEvent.KIND,
+                            RepostEvent.KIND,
+                            GenericRepostEvent.KIND,
+                            LongTextNoteEvent.KIND,
+                            ClassifiedsEvent.KIND,
+                            HighlightEvent.KIND,
+                            AudioHeaderEvent.KIND,
+                            AudioTrackEvent.KIND,
+                            PinListEvent.KIND,
+                            WikiNoteEvent.KIND,
+                        ),
+                    tags =
+                        mapOf(
+                            "g" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                        ),
+                    limit = 100,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultHomeFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createFollowCommunitiesFilter(): TypedFilter? {
+        val communitiesToLoad = account.liveHomeFollowLists.value?.communities ?: return null
+
+        if (communitiesToLoad.isEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.FOLLOWS),
+            filter =
+                Filter(
+                    kinds =
+                        listOf(
+                            TextNoteEvent.KIND,
+                            LongTextNoteEvent.KIND,
+                            ClassifiedsEvent.KIND,
+                            HighlightEvent.KIND,
+                            AudioHeaderEvent.KIND,
+                            AudioTrackEvent.KIND,
+                            PinListEvent.KIND,
+                            WikiNoteEvent.KIND,
+                            CommunityPostApprovalEvent.KIND,
+                        ),
+                    tags =
+                        mapOf(
+                            "a" to communitiesToLoad.toList(),
+                        ),
+                    limit = 100,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultHomeFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    val followAccountChannel =
+        requestNewChannel { time, relayUrl ->
+            latestEOSEs.addOrUpdate(
+                account.userProfile(),
+                account.defaultHomeFollowList.value,
+                relayUrl,
+                time,
+            )
+        }
+
+    override fun updateChannelFilters() {
+        followAccountChannel.typedFilters =
+            listOfNotNull(
+                createFollowAccountsFilter(),
+                createFollowCommunitiesFilter(),
+                createFollowTagsFilter(),
+                createFollowGeohashesFilter(),
+            ).ifEmpty { null }
+    }
+}
@@ -0,0 +1,79 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.ammolite.relays.Client
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.Relay
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.LnZapPaymentResponseEvent
+import com.vitorpamplona.quartz.events.RelayAuthEvent
+import com.vitorpamplona.quartz.signers.NostrSigner
+
+class NostrLnZapPaymentResponseDataSource(
+    private val fromServiceHex: String,
+    private val toUserHex: String,
+    private val replyingToHex: String,
+    private val authSigner: NostrSigner,
+) : AmethystNostrDataSource("LnZapPaymentResponseFeed") {
+    val feedTypes = setOf(FeedType.WALLET_CONNECT)
+
+    private fun createWalletConnectServiceWatcher(): TypedFilter {
+        // downloads all the reactions to a given event.
+        return TypedFilter(
+            types = feedTypes,
+            filter =
+                Filter(
+                    kinds = listOf(LnZapPaymentResponseEvent.KIND),
+                    authors = listOf(fromServiceHex),
+                    tags =
+                        mapOf(
+                            "e" to listOf(replyingToHex),
+                            "p" to listOf(toUserHex),
+                        ),
+                    limit = 1,
+                ),
+        )
+    }
+
+    val channel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        val wc = createWalletConnectServiceWatcher()
+
+        channel.typedFilters = listOfNotNull(wc).ifEmpty { null }
+    }
+
+    override fun auth(
+        relay: Relay,
+        challenge: String,
+    ) {
+        super.auth(relay, challenge)
+
+        RelayAuthEvent.create(relay.url, challenge, authSigner) {
+            Client.send(
+                it,
+                relay.url,
+            )
+        }
+    }
+}
@@ -0,0 +1,209 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.ammolite.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.crypto.KeyPair
+import com.vitorpamplona.quartz.encoders.ATag
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.HexValidator
+import com.vitorpamplona.quartz.encoders.Nip19Bech32
+import com.vitorpamplona.quartz.encoders.bechToBytes
+import com.vitorpamplona.quartz.encoders.toHexKey
+import com.vitorpamplona.quartz.events.AudioHeaderEvent
+import com.vitorpamplona.quartz.events.AudioTrackEvent
+import com.vitorpamplona.quartz.events.BadgeDefinitionEvent
+import com.vitorpamplona.quartz.events.BookmarkListEvent
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.ChannelMetadataEvent
+import com.vitorpamplona.quartz.events.ClassifiedsEvent
+import com.vitorpamplona.quartz.events.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.events.EmojiPackEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesEvent
+import com.vitorpamplona.quartz.events.LongTextNoteEvent
+import com.vitorpamplona.quartz.events.MetadataEvent
+import com.vitorpamplona.quartz.events.NNSEvent
+import com.vitorpamplona.quartz.events.PeopleListEvent
+import com.vitorpamplona.quartz.events.PinListEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
+import com.vitorpamplona.quartz.events.WikiNoteEvent
+import kotlin.coroutines.cancellation.CancellationException
+
+object NostrSearchEventOrUserDataSource : AmethystNostrDataSource("SearchEventFeed") {
+    private var searchString: String? = null
+
+    private fun createAnythingWithIDFilter(): List<TypedFilter>? {
+        val mySearchString = searchString
+        if (mySearchString.isNullOrBlank()) {
+            return null
+        }
+
+        val hexToWatch =
+            try {
+                val isAStraightHex =
+                    if (HexValidator.isHex(mySearchString)) {
+                        Hex.decode(mySearchString).toHexKey()
+                    } else {
+                        null
+                    }
+
+                when (val parsed = Nip19Bech32.uriToRoute(mySearchString)?.entity) {
+                    is Nip19Bech32.NSec -> KeyPair(privKey = parsed.hex.bechToBytes()).pubKey.toHexKey()
+                    is Nip19Bech32.NPub -> parsed.hex
+                    is Nip19Bech32.NProfile -> parsed.hex
+                    is Nip19Bech32.Note -> parsed.hex
+                    is Nip19Bech32.NEvent -> parsed.hex
+                    is Nip19Bech32.NEmbed -> parsed.event.id
+                    is Nip19Bech32.NRelay -> null
+                    is Nip19Bech32.NAddress -> parsed.atag
+                    else -> isAStraightHex
+                }
+            } catch (e: Exception) {
+                if (e is CancellationException) throw e
+                null
+            }
+
+        val directReferenceFilters =
+            hexToWatch?.let {
+                if (it.contains(":")) {
+                    // naddr
+                    listOfNotNull(
+                        ATag.parse(it, null)?.let { aTag ->
+                            TypedFilter(
+                                types = COMMON_FEED_TYPES,
+                                filter =
+                                    Filter(
+                                        kinds = listOf(MetadataEvent.KIND, aTag.kind),
+                                        authors = listOfNotNull(aTag.pubKeyHex),
+                                        // just to be sure
+                                        limit = 5,
+                                    ),
+                            )
+                        },
+                    )
+                } else {
+                    // event ids
+                    listOf(
+                        TypedFilter(
+                            types = COMMON_FEED_TYPES,
+                            filter =
+                                Filter(
+                                    ids = listOfNotNull(hexToWatch),
+                                ),
+                        ),
+                        // authors
+                        TypedFilter(
+                            types = COMMON_FEED_TYPES,
+                            filter =
+                                Filter(
+                                    kinds = listOf(MetadataEvent.KIND),
+                                    authors = listOfNotNull(hexToWatch),
+                                    // just to be sure
+                                    limit = 5,
+                                ),
+                        ),
+                    )
+                }
+            } ?: emptyList()
+
+        // downloads all the reactions to a given event.
+        return directReferenceFilters +
+            listOfNotNull(
+                TypedFilter(
+                    types = setOf(FeedType.SEARCH),
+                    filter =
+                        Filter(
+                            kinds = listOf(MetadataEvent.KIND),
+                            search = mySearchString,
+                            limit = 1000,
+                        ),
+                ),
+                TypedFilter(
+                    types = setOf(FeedType.SEARCH),
+                    filter =
+                        Filter(
+                            kinds =
+                                listOf(
+                                    TextNoteEvent.KIND,
+                                    LongTextNoteEvent.KIND,
+                                    BadgeDefinitionEvent.KIND,
+                                    PeopleListEvent.KIND,
+                                    BookmarkListEvent.KIND,
+                                    AudioHeaderEvent.KIND,
+                                    AudioTrackEvent.KIND,
+                                    PinListEvent.KIND,
+                                    PollNoteEvent.KIND,
+                                    ChannelCreateEvent.KIND,
+                                ),
+                            search = mySearchString,
+                            limit = 100,
+                        ),
+                ),
+                TypedFilter(
+                    types = setOf(FeedType.SEARCH),
+                    filter =
+                        Filter(
+                            kinds =
+                                listOf(
+                                    ChannelMetadataEvent.KIND,
+                                    ClassifiedsEvent.KIND,
+                                    CommunityDefinitionEvent.KIND,
+                                    EmojiPackEvent.KIND,
+                                    HighlightEvent.KIND,
+                                    LiveActivitiesEvent.KIND,
+                                    PollNoteEvent.KIND,
+                                    NNSEvent.KIND,
+                                    WikiNoteEvent.KIND,
+                                ),
+                            search = mySearchString,
+                            limit = 100,
+                        ),
+                ),
+            )
+    }
+
+    val searchChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        searchChannel.typedFilters = createAnythingWithIDFilter()
+    }
+
+    fun search(searchString: String) {
+        if (this.searchString != searchString) {
+            println("DataSource: ${this.javaClass.simpleName} Search for $searchString")
+            this.searchString = searchString
+            invalidateFilters()
+        }
+    }
+
+    fun clear() {
+        if (searchString != null) {
+            println("DataSource: ${this.javaClass.simpleName} Clear")
+            searchString = null
+            invalidateFilters()
+        }
+    }
+}
@@ -0,0 +1,125 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.Channel
+import com.vitorpamplona.amethyst.model.LiveActivitiesChannel
+import com.vitorpamplona.amethyst.model.PublicChatChannel
+import com.vitorpamplona.ammolite.relays.EVENT_FINDER_TYPES
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.ChannelMetadataEvent
+
+object NostrSingleChannelDataSource : AmethystNostrDataSource("SingleChannelFeed") {
+    private var channelsToWatch = setOf<Channel>()
+
+    private fun createMetadataChangeFilter(): TypedFilter? {
+        val reactionsToWatch = channelsToWatch.filter { it is PublicChatChannel }.map { it.idHex }
+
+        if (reactionsToWatch.isEmpty()) {
+            return null
+        }
+
+        // downloads all the reactions to a given event.
+        return TypedFilter(
+            types = setOf(FeedType.PUBLIC_CHATS),
+            filter =
+                Filter(
+                    kinds = listOf(ChannelMetadataEvent.KIND),
+                    tags = mapOf("e" to reactionsToWatch),
+                ),
+        )
+    }
+
+    fun createLoadEventsIfNotLoadedFilter(): TypedFilter? {
+        val directEventsToLoad =
+            channelsToWatch.filter { it.notes.isEmpty() && it is PublicChatChannel }
+
+        val interestedEvents = (directEventsToLoad).map { it.idHex }.toSet()
+
+        if (interestedEvents.isEmpty()) {
+            return null
+        }
+
+        // downloads linked events to this event.
+        return TypedFilter(
+            types = EVENT_FINDER_TYPES,
+            filter =
+                Filter(
+                    kinds = listOf(ChannelCreateEvent.KIND),
+                    ids = interestedEvents.toList(),
+                ),
+        )
+    }
+
+    fun createLoadStreamingIfNotLoadedFilter(): List<TypedFilter>? {
+        val directEventsToLoad =
+            channelsToWatch.filterIsInstance<LiveActivitiesChannel>().filter { it.info == null }
+
+        val interestedEvents = (directEventsToLoad).map { it.idHex }.toSet()
+
+        if (interestedEvents.isEmpty()) {
+            return null
+        }
+
+        // downloads linked events to this event.
+        return directEventsToLoad.map {
+            it.address().let { aTag ->
+                TypedFilter(
+                    types = EVENT_FINDER_TYPES,
+                    filter =
+                        Filter(
+                            kinds = listOf(aTag.kind),
+                            tags = mapOf("d" to listOf(aTag.dTag)),
+                            authors = listOf(aTag.pubKeyHex),
+                        ),
+                )
+            }
+        }
+    }
+
+    val singleChannelChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        val reactions = createMetadataChangeFilter()
+        val missing = createLoadEventsIfNotLoadedFilter()
+        val missingStreaming = createLoadStreamingIfNotLoadedFilter()
+
+        singleChannelChannel.typedFilters =
+            ((listOfNotNull(reactions, missing)) + (missingStreaming ?: emptyList())).ifEmpty { null }
+    }
+
+    fun add(eventId: Channel) {
+        if (eventId !in channelsToWatch) {
+            channelsToWatch = channelsToWatch.plus(eventId)
+            invalidateFilters()
+        }
+    }
+
+    fun remove(eventId: Channel) {
+        if (eventId in channelsToWatch) {
+            channelsToWatch = channelsToWatch.minus(eventId)
+            invalidateFilters()
+        }
+    }
+}
@@ -0,0 +1,357 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.AddressableNote
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.ammolite.relays.EOSETime
+import com.vitorpamplona.ammolite.relays.EVENT_FINDER_TYPES
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.events.DeletionEvent
+import com.vitorpamplona.quartz.events.GenericRepostEvent
+import com.vitorpamplona.quartz.events.GitReplyEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.NIP90ContentDiscoveryResponseEvent
+import com.vitorpamplona.quartz.events.NIP90StatusEvent
+import com.vitorpamplona.quartz.events.OtsEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.ReactionEvent
+import com.vitorpamplona.quartz.events.ReportEvent
+import com.vitorpamplona.quartz.events.RepostEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
+import com.vitorpamplona.quartz.events.TextNoteModificationEvent
+
+object NostrSingleEventDataSource : AmethystNostrDataSource("SingleEventFeed") {
+    private var eventsToWatch = setOf<Note>()
+    private var addressesToWatch = setOf<Note>()
+
+    private fun createReactionsToWatchInAddressFilter(): List<TypedFilter>? {
+        val addressesToWatch =
+            (
+                eventsToWatch.filter { it.address() != null } +
+                    addressesToWatch.filter { it.address() != null }
+            ).toSet()
+
+        if (addressesToWatch.isEmpty()) {
+            return null
+        }
+
+        return groupByEOSEPresence(addressesToWatch)
+            .map {
+                listOf(
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds =
+                                    listOf(
+                                        TextNoteEvent.KIND,
+                                        ReactionEvent.KIND,
+                                        RepostEvent.KIND,
+                                        GenericRepostEvent.KIND,
+                                        ReportEvent.KIND,
+                                        LnZapEvent.KIND,
+                                        PollNoteEvent.KIND,
+                                        CommunityPostApprovalEvent.KIND,
+                                        LiveActivitiesChatMessageEvent.KIND,
+                                    ),
+                                tags = mapOf("a" to it.mapNotNull { it.address()?.toTag() }),
+                                since = findMinimumEOSEs(it),
+                                // Max amount of "replies" to download on a specific event.
+                                limit = 1000,
+                            ),
+                    ),
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds =
+                                    listOf(
+                                        DeletionEvent.KIND,
+                                    ),
+                                tags = mapOf("a" to it.mapNotNull { it.address()?.toTag() }),
+                                since = findMinimumEOSEs(it),
+                                // Max amount of "replies" to download on a specific event.
+                                limit = 10,
+                            ),
+                    ),
+                )
+            }.flatten()
+    }
+
+    private fun createAddressFilter(): List<TypedFilter>? {
+        val addressesToWatch = addressesToWatch.filter { it.event == null }
+
+        if (addressesToWatch.isEmpty()) {
+            return null
+        }
+
+        return addressesToWatch.mapNotNull {
+            it.address()?.let { aTag ->
+                if (aTag.kind < 25000 && aTag.dTag.isBlank()) {
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds = listOf(aTag.kind),
+                                authors = listOf(aTag.pubKeyHex),
+                                limit = 5,
+                            ),
+                    )
+                } else {
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds = listOf(aTag.kind),
+                                tags = mapOf("d" to listOf(aTag.dTag)),
+                                authors = listOf(aTag.pubKeyHex),
+                                limit = 5,
+                            ),
+                    )
+                }
+            }
+        }
+    }
+
+    private fun createRepliesAndReactionsFilter(): List<TypedFilter>? {
+        if (eventsToWatch.isEmpty()) {
+            return null
+        }
+
+        return groupByEOSEPresence(eventsToWatch)
+            .map {
+                listOf(
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds =
+                                    listOf(
+                                        TextNoteEvent.KIND,
+                                        ReactionEvent.KIND,
+                                        RepostEvent.KIND,
+                                        GenericRepostEvent.KIND,
+                                        ReportEvent.KIND,
+                                        LnZapEvent.KIND,
+                                        PollNoteEvent.KIND,
+                                        OtsEvent.KIND,
+                                        TextNoteModificationEvent.KIND,
+                                        GitReplyEvent.KIND,
+                                    ),
+                                tags = mapOf("e" to it.map { it.idHex }),
+                                since = findMinimumEOSEs(it),
+                                // Max amount of "replies" to download on a specific event.
+                                limit = 10000,
+                            ),
+                    ),
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds =
+                                    listOf(
+                                        DeletionEvent.KIND,
+                                        NIP90ContentDiscoveryResponseEvent.KIND,
+                                        NIP90StatusEvent.KIND,
+                                    ),
+                                tags = mapOf("e" to it.map { it.idHex }),
+                                since = findMinimumEOSEs(it),
+                                limit = 100,
+                            ),
+                    ),
+                )
+            }.flatten()
+    }
+
+    private fun createQuotesFilter(): List<TypedFilter>? {
+        if (eventsToWatch.isEmpty()) {
+            return null
+        }
+
+        return groupByEOSEPresence(eventsToWatch)
+            .map {
+                listOf(
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds = listOf(TextNoteEvent.KIND),
+                                tags = mapOf("q" to it.map { it.idHex }),
+                                since = findMinimumEOSEs(it),
+                                // Max amount of "replies" to download on a specific event.
+                                limit = 1000,
+                            ),
+                    ),
+                )
+            }.flatten()
+    }
+
+    fun createLoadEventsIfNotLoadedFilter(): List<TypedFilter>? {
+        val directEventsToLoad = eventsToWatch.filter { it.event == null }
+
+        val threadingEventsToLoad =
+            eventsToWatch
+                .mapNotNull { it.replyTo }
+                .flatten()
+                .filter { it !is AddressableNote && it.event == null }
+
+        val interestedEvents = (directEventsToLoad + threadingEventsToLoad).map { it.idHex }.toSet()
+
+        if (interestedEvents.isEmpty()) {
+            return null
+        }
+
+        // downloads linked events to this event.
+        return listOf(
+            TypedFilter(
+                types = EVENT_FINDER_TYPES,
+                filter =
+                    Filter(
+                        ids = interestedEvents.toList(),
+                    ),
+            ),
+        )
+    }
+
+    val singleEventChannel =
+        requestNewChannel { time, relayUrl ->
+            // Ignores EOSE if it is in the middle of a filter change.
+            if (changingFilters.get()) return@requestNewChannel
+
+            checkNotInMainThread()
+
+            eventsToWatch.forEach {
+                val eose = it.lastReactionsDownloadTime[relayUrl]
+                if (eose == null) {
+                    it.lastReactionsDownloadTime += Pair(relayUrl, EOSETime(time))
+                } else {
+                    eose.time = time
+                }
+            }
+
+            addressesToWatch.forEach {
+                val eose = it.lastReactionsDownloadTime[relayUrl]
+                if (eose == null) {
+                    it.lastReactionsDownloadTime += Pair(relayUrl, EOSETime(time))
+                } else {
+                    eose.time = time
+                }
+            }
+
+            // Many relays operate with limits in the amount of filters.
+            // As information comes, the filters will be rotated to get more data.
+            invalidateFilters()
+        }
+
+    override fun updateChannelFilters() {
+        val reactions = createRepliesAndReactionsFilter()
+        val missing = createLoadEventsIfNotLoadedFilter()
+        val addresses = createAddressFilter()
+        val addressReactions = createReactionsToWatchInAddressFilter()
+        val quotes = createQuotesFilter()
+
+        singleEventChannel.typedFilters =
+            listOfNotNull(missing, addresses, reactions, addressReactions, quotes).flatten().ifEmpty { null }
+    }
+
+    fun add(eventId: Note) {
+        if (!eventsToWatch.contains(eventId)) {
+            eventsToWatch = eventsToWatch.plus(eventId)
+            invalidateFilters()
+        }
+    }
+
+    fun remove(eventId: Note) {
+        if (eventsToWatch.contains(eventId)) {
+            eventsToWatch = eventsToWatch.minus(eventId)
+            invalidateFilters()
+        }
+    }
+
+    fun addAddress(addressableNote: Note) {
+        if (!addressesToWatch.contains(addressableNote)) {
+            addressesToWatch = addressesToWatch.plus(addressableNote)
+            invalidateFilters()
+        }
+    }
+
+    fun removeAddress(addressableNote: Note) {
+        if (addressesToWatch.contains(addressableNote)) {
+            addressesToWatch = addressesToWatch.minus(addressableNote)
+            invalidateFilters()
+        }
+    }
+}
+
+fun groupByEOSEPresence(notes: Set<Note>): Collection<List<Note>> =
+    notes
+        .groupBy {
+            it.lastReactionsDownloadTime.keys
+                .sorted()
+                .joinToString(",")
+        }.values
+
+fun groupByEOSEPresence(users: Iterable<User>): Collection<List<User>> =
+    users
+        .groupBy {
+            it.latestEOSEs.keys
+                .sorted()
+                .joinToString(",")
+        }.values
+
+fun findMinimumEOSEs(notes: List<Note>): Map<String, EOSETime> {
+    val minLatestEOSEs = mutableMapOf<String, EOSETime>()
+
+    notes.forEach {
+        it.lastReactionsDownloadTime.forEach {
+            val minEose = minLatestEOSEs[it.key]
+            if (minEose == null) {
+                minLatestEOSEs.put(it.key, EOSETime(it.value.time))
+            } else if (it.value.time < minEose.time) {
+                minEose.time = it.value.time
+            }
+        }
+    }
+
+    return minLatestEOSEs
+}
+
+fun findMinimumEOSEsForUsers(users: List<User>): Map<String, EOSETime> {
+    val minLatestEOSEs = mutableMapOf<String, EOSETime>()
+
+    users.forEach {
+        it.latestEOSEs.forEach {
+            val minEose = minLatestEOSEs[it.key]
+            if (minEose == null) {
+                minLatestEOSEs.put(it.key, EOSETime(it.value.time))
+            } else if (it.value.time < minEose.time) {
+                minEose.time = it.value.time
+            }
+        }
+    }
+
+    return minLatestEOSEs
+}
@@ -0,0 +1,130 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.ammolite.relays.EOSETime
+import com.vitorpamplona.ammolite.relays.EVENT_FINDER_TYPES
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AdvertisedRelayListEvent
+import com.vitorpamplona.quartz.events.ChatMessageRelayListEvent
+import com.vitorpamplona.quartz.events.MetadataEvent
+import com.vitorpamplona.quartz.events.ReportEvent
+import com.vitorpamplona.quartz.events.StatusEvent
+
+object NostrSingleUserDataSource : AmethystNostrDataSource("SingleUserFeed") {
+    private var usersToWatch = setOf<User>()
+
+    fun createUserMetadataFilter(): List<TypedFilter>? {
+        if (usersToWatch.isEmpty()) return null
+
+        val firstTimers = usersToWatch.filter { it.latestMetadata == null }.map { it.pubkeyHex }
+
+        if (firstTimers.isEmpty()) return null
+
+        return listOf(
+            TypedFilter(
+                types = EVENT_FINDER_TYPES,
+                filter =
+                    Filter(
+                        kinds = listOf(MetadataEvent.KIND, AdvertisedRelayListEvent.KIND),
+                        authors = firstTimers,
+                    ),
+            ),
+        )
+    }
+
+    fun createUserMetadataStatusReportFilter(): List<TypedFilter>? {
+        if (usersToWatch.isEmpty()) return null
+
+        val secondTimers = usersToWatch.filter { it.latestMetadata != null }
+
+        if (secondTimers.isEmpty()) return null
+
+        return groupByEOSEPresence(secondTimers)
+            .map { group ->
+                val groupIds = group.map { it.pubkeyHex }
+                val minEOSEs = findMinimumEOSEsForUsers(group)
+                listOf(
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds = listOf(MetadataEvent.KIND, StatusEvent.KIND, AdvertisedRelayListEvent.KIND, ChatMessageRelayListEvent.KIND),
+                                authors = groupIds,
+                                since = minEOSEs,
+                            ),
+                    ),
+                    TypedFilter(
+                        types = EVENT_FINDER_TYPES,
+                        filter =
+                            Filter(
+                                kinds = listOf(ReportEvent.KIND),
+                                tags = mapOf("p" to groupIds),
+                                since = minEOSEs,
+                            ),
+                    ),
+                )
+            }.flatten()
+    }
+
+    val userChannel =
+        requestNewChannel { time, relayUrl ->
+            checkNotInMainThread()
+
+            usersToWatch.forEach {
+                if (it.latestMetadata != null) {
+                    val eose = it.latestEOSEs[relayUrl]
+                    if (eose == null) {
+                        it.latestEOSEs = it.latestEOSEs + Pair(relayUrl, EOSETime(time))
+                    } else {
+                        eose.time = time
+                    }
+                }
+            }
+        }
+
+    override fun updateChannelFilters() {
+        checkNotInMainThread()
+
+        userChannel.typedFilters =
+            listOfNotNull(
+                createUserMetadataFilter(),
+                createUserMetadataStatusReportFilter(),
+            ).flatten()
+                .ifEmpty { null }
+    }
+
+    fun add(user: User) {
+        if (!usersToWatch.contains(user)) {
+            usersToWatch = usersToWatch.plus(user)
+            invalidateFilters()
+        }
+    }
+
+    fun remove(user: User) {
+        if (usersToWatch.contains(user)) {
+            usersToWatch = usersToWatch.minus(user)
+            invalidateFilters()
+        }
+    }
+}
@@ -0,0 +1,73 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.ThreadAssembler
+import com.vitorpamplona.ammolite.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+
+object NostrThreadDataSource : AmethystNostrDataSource("SingleThreadFeed") {
+    private var eventToWatch: String? = null
+
+    fun createLoadEventsIfNotLoadedFilter(): TypedFilter? {
+        val threadToLoad = eventToWatch ?: return null
+
+        val eventsToLoad =
+            ThreadAssembler()
+                .findThreadFor(threadToLoad)
+                .filter { it.event == null }
+                .map { it.idHex }
+                .toSet()
+                .ifEmpty { null }
+                ?: return null
+
+        if (eventsToLoad.isEmpty()) return null
+
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter =
+                Filter(
+                    ids = eventsToLoad.toList(),
+                ),
+        )
+    }
+
+    val loadEventsChannel =
+        requestNewChannel { _, _ ->
+            // Many relays operate with limits in the amount of filters.
+            // As information comes, the filters will be rotated to get more data.
+            invalidateFilters()
+        }
+
+    override fun updateChannelFilters() {
+        loadEventsChannel.typedFilters =
+            listOfNotNull(createLoadEventsIfNotLoadedFilter()).ifEmpty { null }
+    }
+
+    fun loadThread(noteId: String?) {
+        if (eventToWatch != noteId) {
+            eventToWatch = noteId
+
+            invalidateFilters()
+        }
+    }
+}
@@ -0,0 +1,184 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.ammolite.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AppRecommendationEvent
+import com.vitorpamplona.quartz.events.AudioHeaderEvent
+import com.vitorpamplona.quartz.events.AudioTrackEvent
+import com.vitorpamplona.quartz.events.BadgeAwardEvent
+import com.vitorpamplona.quartz.events.BadgeProfilesEvent
+import com.vitorpamplona.quartz.events.BookmarkListEvent
+import com.vitorpamplona.quartz.events.ContactListEvent
+import com.vitorpamplona.quartz.events.GenericRepostEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.LongTextNoteEvent
+import com.vitorpamplona.quartz.events.MetadataEvent
+import com.vitorpamplona.quartz.events.PeopleListEvent
+import com.vitorpamplona.quartz.events.PinListEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.RepostEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
+import com.vitorpamplona.quartz.events.WikiNoteEvent
+
+object NostrUserProfileDataSource : AmethystNostrDataSource("UserProfileFeed") {
+    var user: User? = null
+
+    fun loadUserProfile(user: User?) {
+        this.user = user
+    }
+
+    fun createUserInfoFilter() =
+        user?.let {
+            TypedFilter(
+                types = COMMON_FEED_TYPES,
+                filter =
+                    Filter(
+                        kinds = listOf(MetadataEvent.KIND),
+                        authors = listOf(it.pubkeyHex),
+                        limit = 1,
+                    ),
+            )
+        }
+
+    fun createUserPostsFilter() =
+        user?.let {
+            TypedFilter(
+                types = COMMON_FEED_TYPES,
+                filter =
+                    Filter(
+                        kinds =
+                            listOf(
+                                TextNoteEvent.KIND,
+                                GenericRepostEvent.KIND,
+                                RepostEvent.KIND,
+                                LongTextNoteEvent.KIND,
+                                AudioTrackEvent.KIND,
+                                AudioHeaderEvent.KIND,
+                                PinListEvent.KIND,
+                                PollNoteEvent.KIND,
+                                HighlightEvent.KIND,
+                                WikiNoteEvent.KIND,
+                            ),
+                        authors = listOf(it.pubkeyHex),
+                        limit = 200,
+                    ),
+            )
+        }
+
+    fun createUserReceivedZapsFilter() =
+        user?.let {
+            TypedFilter(
+                types = COMMON_FEED_TYPES,
+                filter =
+                    Filter(
+                        kinds = listOf(LnZapEvent.KIND),
+                        tags = mapOf("p" to listOf(it.pubkeyHex)),
+                        limit = 200,
+                    ),
+            )
+        }
+
+    fun createFollowFilter() =
+        user?.let {
+            TypedFilter(
+                types = COMMON_FEED_TYPES,
+                filter =
+                    Filter(
+                        kinds = listOf(ContactListEvent.KIND),
+                        authors = listOf(it.pubkeyHex),
+                        limit = 1,
+                    ),
+            )
+        }
+
+    fun createFollowersFilter() =
+        user?.let {
+            TypedFilter(
+                types = COMMON_FEED_TYPES,
+                filter =
+                    Filter(
+                        kinds = listOf(ContactListEvent.KIND),
+                        tags = mapOf("p" to listOf(it.pubkeyHex)),
+                    ),
+            )
+        }
+
+    fun createAcceptedAwardsFilter() =
+        user?.let {
+            TypedFilter(
+                types = COMMON_FEED_TYPES,
+                filter =
+                    Filter(
+                        kinds = listOf(BadgeProfilesEvent.KIND),
+                        authors = listOf(it.pubkeyHex),
+                        limit = 1,
+                    ),
+            )
+        }
+
+    fun createBookmarksFilter() =
+        user?.let {
+            TypedFilter(
+                types = COMMON_FEED_TYPES,
+                filter =
+                    Filter(
+                        kinds =
+                            listOf(BookmarkListEvent.KIND, PeopleListEvent.KIND, AppRecommendationEvent.KIND),
+                        authors = listOf(it.pubkeyHex),
+                        limit = 100,
+                    ),
+            )
+        }
+
+    fun createReceivedAwardsFilter() =
+        user?.let {
+            TypedFilter(
+                types = COMMON_FEED_TYPES,
+                filter =
+                    Filter(
+                        kinds = listOf(BadgeAwardEvent.KIND),
+                        tags = mapOf("p" to listOf(it.pubkeyHex)),
+                        limit = 20,
+                    ),
+            )
+        }
+
+    val userInfoChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        userInfoChannel.typedFilters =
+            listOfNotNull(
+                createUserInfoFilter(),
+                createUserPostsFilter(),
+                createFollowFilter(),
+                createFollowersFilter(),
+                createUserReceivedZapsFilter(),
+                createAcceptedAwardsFilter(),
+                createReceivedAwardsFilter(),
+                createBookmarksFilter(),
+            ).ifEmpty { null }
+    }
+}
@@ -0,0 +1,169 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.Amethyst
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
+import com.vitorpamplona.ammolite.relays.FeedType
+import com.vitorpamplona.ammolite.relays.Filter
+import com.vitorpamplona.ammolite.relays.TypedFilter
+import com.vitorpamplona.quartz.events.FileHeaderEvent
+import com.vitorpamplona.quartz.events.FileStorageHeaderEvent
+import com.vitorpamplona.quartz.events.VideoHorizontalEvent
+import com.vitorpamplona.quartz.events.VideoVerticalEvent
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+
+val SUPPORTED_VIDEO_FEED_MIME_TYPES = listOf("image/jpeg", "image/gif", "image/png", "image/webp", "video/mp4", "video/mpeg", "video/webm", "audio/aac", "audio/mpeg", "audio/webm", "audio/wav", "image/avif")
+val SUPPORTED_VIDEO_FEED_MIME_TYPES_SET = SUPPORTED_VIDEO_FEED_MIME_TYPES.toSet()
+
+object NostrVideoDataSource : AmethystNostrDataSource("VideoFeed") {
+    lateinit var account: Account
+
+    val scope = Amethyst.instance.applicationIOScope
+    val latestEOSEs = EOSEAccount()
+
+    var job: Job? = null
+
+    override fun start() {
+        job?.cancel()
+        job =
+            scope.launch(Dispatchers.IO) {
+                account.liveStoriesFollowLists.collect {
+                    if (this@NostrVideoDataSource::account.isInitialized) {
+                        invalidateFilters()
+                    }
+                }
+            }
+        super.start()
+    }
+
+    override fun stop() {
+        super.stop()
+        job?.cancel()
+    }
+
+    fun createContextualFilter(): TypedFilter {
+        val follows =
+            account.liveStoriesFollowLists.value
+                ?.users
+                ?.toList()
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter =
+                Filter(
+                    authors = follows,
+                    kinds = listOf(FileHeaderEvent.KIND, FileStorageHeaderEvent.KIND, VideoHorizontalEvent.KIND, VideoVerticalEvent.KIND),
+                    limit = 200,
+                    tags = mapOf("m" to SUPPORTED_VIDEO_FEED_MIME_TYPES),
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultStoriesFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createFollowTagsFilter(): TypedFilter? {
+        val hashToLoad =
+            account.liveStoriesFollowLists.value
+                ?.hashtags
+                ?.toList() ?: return null
+
+        if (hashToLoad.isEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter =
+                Filter(
+                    kinds = listOf(FileHeaderEvent.KIND, FileStorageHeaderEvent.KIND, VideoHorizontalEvent.KIND, VideoVerticalEvent.KIND),
+                    tags =
+                        mapOf(
+                            "t" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                            "m" to SUPPORTED_VIDEO_FEED_MIME_TYPES,
+                        ),
+                    limit = 100,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultStoriesFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    fun createFollowGeohashesFilter(): TypedFilter? {
+        val hashToLoad =
+            account.liveStoriesFollowLists.value
+                ?.geotags
+                ?.toList() ?: return null
+
+        if (hashToLoad.isEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter =
+                Filter(
+                    kinds = listOf(FileHeaderEvent.KIND, FileStorageHeaderEvent.KIND, VideoHorizontalEvent.KIND, VideoVerticalEvent.KIND),
+                    tags =
+                        mapOf(
+                            "g" to
+                                hashToLoad
+                                    .map { listOf(it, it.lowercase(), it.uppercase(), it.capitalize()) }
+                                    .flatten(),
+                            "m" to SUPPORTED_VIDEO_FEED_MIME_TYPES,
+                        ),
+                    limit = 100,
+                    since =
+                        latestEOSEs.users[account.userProfile()]
+                            ?.followList
+                            ?.get(account.defaultStoriesFollowList.value)
+                            ?.relayList,
+                ),
+        )
+    }
+
+    val videoFeedChannel =
+        requestNewChannel { time, relayUrl ->
+            latestEOSEs.addOrUpdate(
+                account.userProfile(),
+                account.defaultStoriesFollowList.value,
+                relayUrl,
+                time,
+            )
+        }
+
+    override fun updateChannelFilters() {
+        videoFeedChannel.typedFilters =
+            listOfNotNull(
+                createContextualFilter(),
+                createFollowTagsFilter(),
+                createFollowGeohashesFilter(),
+            ).ifEmpty { null }
+    }
+}
@@ -0,0 +1,104 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.util.Log
+import android.util.LruCache
+import androidx.compose.runtime.Immutable
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.crypto.CryptoUtils
+import okhttp3.EventListener
+import okhttp3.Protocol
+import okhttp3.Request
+import okio.ByteString.Companion.toByteString
+import kotlin.coroutines.cancellation.CancellationException
+
+@Immutable data class OnlineCheckResult(val timeInMs: Long, val online: Boolean)
+
+object OnlineChecker {
+    val checkOnlineCache = LruCache<String, OnlineCheckResult>(100)
+    val fiveMinutes = 1000 * 60 * 5
+
+    fun isOnlineCached(url: String?): Boolean {
+        if (url.isNullOrBlank()) return false
+        if ((checkOnlineCache.get(url)?.timeInMs ?: 0) > System.currentTimeMillis() - fiveMinutes) {
+            return checkOnlineCache.get(url).online
+        }
+        return false
+    }
+
+    fun isOnline(url: String?): Boolean {
+        checkNotInMainThread()
+
+        if (url.isNullOrBlank()) return false
+        if ((checkOnlineCache.get(url)?.timeInMs ?: 0) > System.currentTimeMillis() - fiveMinutes) {
+            return checkOnlineCache.get(url).online
+        }
+
+        return try {
+            val result =
+                if (url.startsWith("wss")) {
+                    val request =
+                        Request.Builder()
+                            .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                            .url(url.replace("wss+livekit://", "wss://"))
+                            .header("Upgrade", "websocket")
+                            .header("Connection", "Upgrade")
+                            .header("Sec-WebSocket-Key", CryptoUtils.random(16).toByteString().base64())
+                            .header("Sec-WebSocket-Version", "13")
+                            .header("Sec-WebSocket-Extensions", "permessage-deflate")
+                            .build()
+
+                    val client =
+                        HttpClientManager.getHttpClient().newBuilder()
+                            .eventListener(EventListener.NONE)
+                            .protocols(listOf(Protocol.HTTP_1_1))
+                            .build()
+
+                    client.newCall(request).execute().use {
+                        checkNotInMainThread()
+                        it.isSuccessful
+                    }
+                } else {
+                    val request =
+                        Request.Builder()
+                            .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                            .url(url)
+                            .get()
+                            .build()
+
+                    HttpClientManager.getHttpClient().newCall(request).execute().use {
+                        checkNotInMainThread()
+                        it.isSuccessful
+                    }
+                }
+
+            checkOnlineCache.put(url, OnlineCheckResult(System.currentTimeMillis(), result))
+            result
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            checkOnlineCache.put(url, OnlineCheckResult(System.currentTimeMillis(), false))
+            Log.e("LiveActivities", "Failed to check streaming url $url", e)
+            false
+        }
+    }
+}
@@ -0,0 +1,50 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+
+object PackageUtils {
+    private fun isPackageInstalled(
+        context: Context,
+        target: String,
+    ): Boolean {
+        return context.packageManager.getInstalledApplications(0).find { info ->
+            info.packageName == target
+        } != null
+    }
+
+    fun isOrbotInstalled(context: Context): Boolean {
+        return isPackageInstalled(context, "org.torproject.android")
+    }
+
+    fun isExternalSignerInstalled(context: Context): Boolean {
+        val intent =
+            Intent().apply {
+                action = Intent.ACTION_VIEW
+                data = Uri.parse("nostrsigner:")
+            }
+        val infos = context.packageManager.queryIntentActivities(intent, 0)
+        return infos.size > 0
+    }
+}
@@ -0,0 +1,385 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service
+
+import android.content.Context
+import androidx.compose.runtime.Immutable
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.service.lnurl.LightningAddressResolver
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.collectSuccessfulSigningOperations
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.quartz.events.AdvertisedRelayListEvent
+import com.vitorpamplona.quartz.events.AppDefinitionEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.PayInvoiceErrorResponse
+import com.vitorpamplona.quartz.events.ZapSplitSetup
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.toImmutableList
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import kotlin.math.round
+
+class ZapPaymentHandler(
+    val account: Account,
+) {
+    @Immutable
+    data class Payable(
+        val info: ZapSplitSetup,
+        val user: User?,
+        val amountMilliSats: Long,
+        val invoice: String,
+    )
+
+    suspend fun zap(
+        note: Note,
+        amountMilliSats: Long,
+        pollOption: Int?,
+        message: String,
+        context: Context,
+        showErrorIfNoLnAddress: Boolean,
+        onError: (String, String) -> Unit,
+        onProgress: (percent: Float) -> Unit,
+        onPayViaIntent: (ImmutableList<Payable>) -> Unit,
+        zapType: LnZapEvent.ZapType,
+    ) = withContext(Dispatchers.IO) {
+        val noteEvent = note.event
+        val zapSplitSetup = noteEvent?.zapSplitSetup()
+
+        val zapsToSend =
+            if (!zapSplitSetup.isNullOrEmpty()) {
+                zapSplitSetup
+            } else if (noteEvent is LiveActivitiesEvent && noteEvent.hasHost()) {
+                noteEvent.hosts().map { ZapSplitSetup(it, null, weight = 1.0, false) }
+            } else if (noteEvent is AppDefinitionEvent) {
+                val appLud16 = noteEvent.appMetaData()?.lnAddress()
+                if (appLud16 != null) {
+                    listOf(ZapSplitSetup(appLud16, null, weight = 1.0, true))
+                } else {
+                    val lud16 = note.author?.info?.lnAddress()
+
+                    if (lud16.isNullOrBlank()) {
+                        onError(
+                            stringRes(context, R.string.missing_lud16),
+                            stringRes(
+                                context,
+                                R.string.user_does_not_have_a_lightning_address_setup_to_receive_sats,
+                            ),
+                        )
+                        return@withContext
+                    }
+
+                    listOf(ZapSplitSetup(lud16, null, weight = 1.0, true))
+                }
+            } else {
+                val lud16 = note.author?.info?.lnAddress()
+
+                if (lud16.isNullOrBlank()) {
+                    onError(
+                        stringRes(context, R.string.missing_lud16),
+                        stringRes(
+                            context,
+                            R.string.user_does_not_have_a_lightning_address_setup_to_receive_sats,
+                        ),
+                    )
+                    return@withContext
+                }
+
+                listOf(ZapSplitSetup(lud16, null, weight = 1.0, true))
+            }
+
+        onProgress(0.02f)
+        signAllZapRequests(note, pollOption, message, zapType, zapsToSend) { splitZapRequestPairs ->
+            if (splitZapRequestPairs.isEmpty()) {
+                onProgress(0.00f)
+                return@signAllZapRequests
+            } else {
+                onProgress(0.05f)
+            }
+
+            assembleAllInvoices(splitZapRequestPairs.toList(), amountMilliSats, message, showErrorIfNoLnAddress, onError, onProgress = {
+                onProgress(it * 0.7f + 0.05f) // keeps within range.
+            }, context) {
+                if (it.isEmpty()) {
+                    onProgress(0.00f)
+                    return@assembleAllInvoices
+                } else {
+                    onProgress(0.75f)
+                }
+
+                if (account.hasWalletConnectSetup()) {
+                    payViaNWC(it.values.map { it.invoice }, note, onError, onProgress = {
+                        onProgress(it * 0.25f + 0.75f) // keeps within range.
+                    }, context) {
+                        // onProgress(1f)
+                    }
+                } else {
+                    onPayViaIntent(
+                        it
+                            .map {
+                                Payable(
+                                    info = it.key.first,
+                                    user = it.key.second.user,
+                                    amountMilliSats = it.value.zapValue,
+                                    invoice = it.value.invoice,
+                                )
+                            }.toImmutableList(),
+                    )
+
+                    onProgress(0f)
+                }
+            }
+        }
+    }
+
+    private fun calculateZapValue(
+        amountMilliSats: Long,
+        weight: Double,
+        totalWeight: Double,
+    ): Long {
+        val shareValue = amountMilliSats * (weight / totalWeight)
+        val roundedZapValue = round(shareValue / 1000f).toLong() * 1000
+        return roundedZapValue
+    }
+
+    class SignAllZapRequestsReturn(
+        val zapRequestJson: String,
+        val user: User? = null,
+    )
+
+    suspend fun signAllZapRequests(
+        note: Note,
+        pollOption: Int?,
+        message: String,
+        zapType: LnZapEvent.ZapType,
+        zapsToSend: List<ZapSplitSetup>,
+        onAllDone: suspend (MutableMap<ZapSplitSetup, SignAllZapRequestsReturn>) -> Unit,
+    ) {
+        val authorRelayList =
+            note.author
+                ?.pubkeyHex
+                ?.let {
+                    (
+                        LocalCache
+                            .getAddressableNoteIfExists(
+                                AdvertisedRelayListEvent.createAddressTag(it),
+                            )?.event as? AdvertisedRelayListEvent?
+                    )?.readRelays()
+                }?.toSet()
+
+        collectSuccessfulSigningOperations<ZapSplitSetup, SignAllZapRequestsReturn>(
+            operationsInput = zapsToSend,
+            runRequestFor = { next: ZapSplitSetup, onReady ->
+                if (next.isLnAddress) {
+                    prepareZapRequestIfNeeded(note, pollOption, message, zapType) { zapRequestJson ->
+                        if (zapRequestJson != null) {
+                            onReady(SignAllZapRequestsReturn(zapRequestJson))
+                        }
+                    }
+                } else {
+                    val user = LocalCache.getUserIfExists(next.lnAddressOrPubKeyHex)
+                    val userRelayList =
+                        (
+                            (
+                                LocalCache
+                                    .getAddressableNoteIfExists(
+                                        AdvertisedRelayListEvent.createAddressTag(next.lnAddressOrPubKeyHex),
+                                    )?.event as? AdvertisedRelayListEvent?
+                            )?.readRelays()?.toSet() ?: emptySet()
+                        ) + (authorRelayList ?: emptySet())
+
+                    prepareZapRequestIfNeeded(note, pollOption, message, zapType, user, userRelayList) { zapRequestJson ->
+                        if (zapRequestJson != null) {
+                            onReady(SignAllZapRequestsReturn(zapRequestJson, user))
+                        }
+                    }
+                }
+            },
+            onReady = onAllDone,
+        )
+    }
+
+    suspend fun assembleAllInvoices(
+        invoices: List<Pair<ZapSplitSetup, SignAllZapRequestsReturn>>,
+        totalAmountMilliSats: Long,
+        message: String,
+        showErrorIfNoLnAddress: Boolean,
+        onError: (String, String) -> Unit,
+        onProgress: (percent: Float) -> Unit,
+        context: Context,
+        onAllDone: suspend (MutableMap<Pair<ZapSplitSetup, SignAllZapRequestsReturn>, AssembleInvoiceReturn>) -> Unit,
+    ) {
+        var progressAllPayments = 0.00f
+        val totalWeight = invoices.sumOf { it.first.weight }
+
+        collectSuccessfulSigningOperations<Pair<ZapSplitSetup, SignAllZapRequestsReturn>, AssembleInvoiceReturn>(
+            operationsInput = invoices,
+            runRequestFor = { splitZapRequestPair: Pair<ZapSplitSetup, SignAllZapRequestsReturn>, onReady ->
+                assembleInvoice(
+                    splitSetup = splitZapRequestPair.first,
+                    nostrZapRequest = splitZapRequestPair.second.zapRequestJson,
+                    zapValue = calculateZapValue(totalAmountMilliSats, splitZapRequestPair.first.weight, totalWeight),
+                    message = message,
+                    showErrorIfNoLnAddress = showErrorIfNoLnAddress,
+                    onError = onError,
+                    onProgressStep = { percentStepForThisPayment ->
+                        progressAllPayments += percentStepForThisPayment / invoices.size
+                        onProgress(progressAllPayments)
+                    },
+                    context = context,
+                    onReady = onReady,
+                )
+            },
+            onReady = onAllDone,
+        )
+    }
+
+    suspend fun payViaNWC(
+        invoices: List<String>,
+        note: Note,
+        onError: (String, String) -> Unit,
+        onProgress: (percent: Float) -> Unit,
+        context: Context,
+        onAllDone: suspend (MutableMap<String, Boolean>) -> Unit,
+    ) {
+        var progressAllPayments = 0.00f
+
+        collectSuccessfulSigningOperations<String, Boolean>(
+            operationsInput = invoices,
+            runRequestFor = { invoice: String, onReady ->
+                account.sendZapPaymentRequestFor(
+                    bolt11 = invoice,
+                    zappedNote = note,
+                    onSent = {
+                        progressAllPayments += 0.5f / invoices.size
+                        onProgress(progressAllPayments)
+                        onReady(true)
+                    },
+                    onResponse = { response ->
+                        if (response is PayInvoiceErrorResponse) {
+                            progressAllPayments += 0.5f / invoices.size
+                            onProgress(progressAllPayments)
+                            onError(
+                                stringRes(context, R.string.error_dialog_pay_invoice_error),
+                                stringRes(
+                                    context,
+                                    R.string.wallet_connect_pay_invoice_error_error,
+                                    response.error?.message
+                                        ?: response.error?.code?.toString() ?: "Error parsing error message",
+                                ),
+                            )
+                        } else {
+                            progressAllPayments += 0.5f / invoices.size
+                            onProgress(progressAllPayments)
+                        }
+                    },
+                )
+            },
+            onReady = onAllDone,
+        )
+    }
+
+    class AssembleInvoiceReturn(
+        val zapValue: Long,
+        val invoice: String,
+    )
+
+    private fun assembleInvoice(
+        splitSetup: ZapSplitSetup,
+        nostrZapRequest: String,
+        zapValue: Long,
+        message: String,
+        showErrorIfNoLnAddress: Boolean = true,
+        onError: (String, String) -> Unit,
+        onProgressStep: (percent: Float) -> Unit,
+        context: Context,
+        onReady: (AssembleInvoiceReturn) -> Unit,
+    ) {
+        var progressThisPayment = 0.00f
+
+        var user: User? = null
+        val lud16 =
+            if (splitSetup.isLnAddress) {
+                splitSetup.lnAddressOrPubKeyHex
+            } else {
+                user = LocalCache.getUserIfExists(splitSetup.lnAddressOrPubKeyHex)
+                user?.info?.lnAddress()
+            }
+
+        if (lud16 != null) {
+            LightningAddressResolver()
+                .lnAddressInvoice(
+                    lnaddress = lud16,
+                    milliSats = zapValue,
+                    message = message,
+                    nostrRequest = nostrZapRequest,
+                    onError = onError,
+                    onProgress = {
+                        val step = it - progressThisPayment
+                        progressThisPayment = it
+                        onProgressStep(step)
+                    },
+                    context = context,
+                    onSuccess = {
+                        onProgressStep(1 - progressThisPayment)
+                        onReady(AssembleInvoiceReturn(zapValue, it))
+                    },
+                )
+        } else {
+            if (showErrorIfNoLnAddress) {
+                onError(
+                    stringRes(
+                        context,
+                        R.string.missing_lud16,
+                    ),
+                    stringRes(
+                        context,
+                        R.string.user_x_does_not_have_a_lightning_address_setup_to_receive_sats,
+                        user?.toBestDisplayName() ?: splitSetup.lnAddressOrPubKeyHex,
+                    ),
+                )
+            }
+        }
+    }
+
+    private fun prepareZapRequestIfNeeded(
+        note: Note,
+        pollOption: Int?,
+        message: String,
+        zapType: LnZapEvent.ZapType,
+        overrideUser: User? = null,
+        additionalRelays: Set<String>? = null,
+        onReady: (String?) -> Unit,
+    ) {
+        if (zapType != LnZapEvent.ZapType.NONZAP) {
+            account.createZapRequestFor(note, pollOption, message, zapType, overrideUser, additionalRelays) { zapRequest ->
+                println("Zap Request " + zapRequest.toJson())
+                onReady(zapRequest.toJson())
+            }
+        } else {
+            onReady(null)
+        }
+    }
+}
@@ -0,0 +1,60 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.lnurl
+
+import android.util.LruCache
+import androidx.compose.runtime.Stable
+import com.vitorpamplona.quartz.encoders.LnInvoiceUtil
+import kotlinx.coroutines.CancellationException
+import java.text.NumberFormat
+
+@Stable
+data class InvoiceAmount(val invoice: String, val amount: String?)
+
+object CachedLnInvoiceParser {
+    val lnInvoicesCache = LruCache<String, InvoiceAmount>(20)
+
+    fun cached(lnurl: String): InvoiceAmount? {
+        return lnInvoicesCache[lnurl]
+    }
+
+    fun parse(lnbcWord: String): InvoiceAmount? {
+        val myInvoice = LnInvoiceUtil.findInvoice(lnbcWord)
+        if (myInvoice != null) {
+            val myInvoiceAmount =
+                try {
+                    NumberFormat.getInstance().format(LnInvoiceUtil.getAmountInSats(myInvoice))
+                } catch (e: Exception) {
+                    if (e is CancellationException) throw e
+                    e.printStackTrace()
+                    null
+                }
+
+            val lnInvoice = InvoiceAmount(myInvoice, myInvoiceAmount)
+
+            lnInvoicesCache.put(lnbcWord, lnInvoice)
+
+            return lnInvoice
+        }
+
+        return null
+    }
+}
@@ -0,0 +1,298 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.lnurl
+
+import android.content.Context
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.encoders.LnInvoiceUtil
+import com.vitorpamplona.quartz.encoders.Lud06
+import okhttp3.Request
+import java.math.BigDecimal
+import java.math.RoundingMode
+import java.net.URLEncoder
+import kotlin.coroutines.cancellation.CancellationException
+
+class LightningAddressResolver {
+    val client = HttpClientManager.getHttpClient()
+
+    fun assembleUrl(lnaddress: String): String? {
+        val parts = lnaddress.split("@")
+
+        if (parts.size == 2) {
+            return "https://${parts[1]}/.well-known/lnurlp/${parts[0]}"
+        }
+
+        if (lnaddress.lowercase().startsWith("lnurl")) {
+            return Lud06().toLnUrlp(lnaddress)
+        }
+
+        return null
+    }
+
+    private fun fetchLightningAddressJson(
+        lnaddress: String,
+        onSuccess: (String) -> Unit,
+        onError: (String, String) -> Unit,
+        context: Context,
+    ) {
+        checkNotInMainThread()
+
+        val url = assembleUrl(lnaddress)
+
+        if (url == null) {
+            onError(
+                stringRes(context, R.string.error_unable_to_fetch_invoice),
+                stringRes(
+                    context,
+                    R.string.could_not_assemble_lnurl_from_lightning_address_check_the_user_s_setup,
+                    lnaddress,
+                ),
+            )
+            return
+        }
+
+        try {
+            val request: Request =
+                Request
+                    .Builder()
+                    .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                    .url(url)
+                    .build()
+
+            client.newCall(request).execute().use {
+                if (it.isSuccessful) {
+                    onSuccess(it.body.string())
+                } else {
+                    onError(
+                        stringRes(context, R.string.error_unable_to_fetch_invoice),
+                        stringRes(
+                            context,
+                            R.string
+                                .the_receiver_s_lightning_service_at_is_not_available_it_was_calculated_from_the_lightning_address_error_check_if_the_server_is_up_and_if_the_lightning_address_is_correct,
+                            url,
+                            lnaddress,
+                            it.code.toString(),
+                        ),
+                    )
+                }
+            }
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            e.printStackTrace()
+            onError(
+                stringRes(context, R.string.error_unable_to_fetch_invoice),
+                stringRes(
+                    context,
+                    R.string
+                        .could_not_resolve_check_if_you_are_connected_if_the_server_is_up_and_if_the_lightning_address_is_correct_exception,
+                    url,
+                    lnaddress,
+                    e.suppressedExceptions.getOrNull(0)?.message ?: e.cause?.message ?: e.message,
+                ),
+            )
+        }
+    }
+
+    fun fetchLightningInvoice(
+        lnCallback: String,
+        milliSats: Long,
+        message: String,
+        nostrRequest: String? = null,
+        onSuccess: (String) -> Unit,
+        onError: (String, String) -> Unit,
+        context: Context,
+    ) {
+        checkNotInMainThread()
+
+        val encodedMessage = URLEncoder.encode(message, "utf-8")
+
+        val urlBinder = if (lnCallback.contains("?")) "&" else "?"
+        var url = "$lnCallback${urlBinder}amount=$milliSats&comment=$encodedMessage"
+
+        if (nostrRequest != null) {
+            val encodedNostrRequest = URLEncoder.encode(nostrRequest, "utf-8")
+            url += "&nostr=$encodedNostrRequest"
+        }
+
+        val request: Request =
+            Request
+                .Builder()
+                .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                .url(url)
+                .build()
+
+        client.newCall(request).execute().use {
+            if (it.isSuccessful) {
+                onSuccess(it.body.string())
+            } else {
+                onError(
+                    stringRes(context, R.string.error_unable_to_fetch_invoice),
+                    stringRes(context, R.string.could_not_fetch_invoice_from, lnCallback),
+                )
+            }
+        }
+    }
+
+    fun lnAddressInvoice(
+        lnaddress: String,
+        milliSats: Long,
+        message: String,
+        nostrRequest: String? = null,
+        onSuccess: (String) -> Unit,
+        onError: (String, String) -> Unit,
+        onProgress: (percent: Float) -> Unit,
+        context: Context,
+    ) {
+        val mapper = jacksonObjectMapper()
+
+        fetchLightningAddressJson(
+            lnaddress,
+            onSuccess = { lnAddressJson ->
+                onProgress(0.4f)
+
+                val lnurlp =
+                    try {
+                        mapper.readTree(lnAddressJson)
+                    } catch (t: Throwable) {
+                        if (t is CancellationException) throw t
+                        onError(
+                            stringRes(context, R.string.error_unable_to_fetch_invoice),
+                            stringRes(
+                                context,
+                                R.string.error_parsing_json_from_lightning_address_check_the_user_s_lightning_setup_with_user,
+                                lnaddress,
+                            ),
+                        )
+                        null
+                    }
+
+                val callback = lnurlp?.get("callback")?.asText()
+
+                if (callback == null) {
+                    onError(
+                        stringRes(context, R.string.error_unable_to_fetch_invoice),
+                        stringRes(
+                            context,
+                            R.string.callback_url_not_found_in_the_user_s_lightning_address_server_configuration_with_user,
+                            lnaddress,
+                        ),
+                    )
+                }
+
+                val allowsNostr = lnurlp?.get("allowsNostr")?.asBoolean() ?: false
+
+                callback?.let { cb ->
+                    fetchLightningInvoice(
+                        cb,
+                        milliSats,
+                        message,
+                        if (allowsNostr) nostrRequest else null,
+                        onSuccess = {
+                            onProgress(0.6f)
+
+                            val lnInvoice =
+                                try {
+                                    mapper.readTree(it)
+                                } catch (t: Throwable) {
+                                    if (t is CancellationException) throw t
+                                    onError(
+                                        stringRes(context, R.string.error_unable_to_fetch_invoice),
+                                        stringRes(
+                                            context,
+                                            R.string
+                                                .error_parsing_json_from_lightning_address_s_invoice_fetch_check_the_user_s_lightning_setup_with_user,
+                                            lnaddress,
+                                        ),
+                                    )
+                                    null
+                                }
+
+                            lnInvoice
+                                ?.get("pr")
+                                ?.asText()
+                                ?.ifBlank { null }
+                                ?.let { pr ->
+                                    // Forces LN Invoice amount to be the requested amount.
+                                    val expectedAmountInSats =
+                                        BigDecimal(milliSats).divide(BigDecimal(1000), RoundingMode.HALF_UP).toLong()
+                                    val invoiceAmount = LnInvoiceUtil.getAmountInSats(pr)
+                                    if (invoiceAmount.toLong() == expectedAmountInSats) {
+                                        onProgress(0.7f)
+                                        onSuccess(pr)
+                                    } else {
+                                        onProgress(0.0f)
+                                        onError(
+                                            stringRes(context, R.string.error_unable_to_fetch_invoice),
+                                            stringRes(
+                                                context,
+                                                R.string.incorrect_invoice_amount_sats_from_it_should_have_been,
+                                                invoiceAmount.toLong().toString(),
+                                                lnaddress,
+                                                expectedAmountInSats.toString(),
+                                            ),
+                                        )
+                                    }
+                                }
+                                ?: lnInvoice
+                                    ?.get("reason")
+                                    ?.asText()
+                                    ?.ifBlank { null }
+                                    ?.let { reason ->
+                                        onProgress(0.0f)
+                                        onError(
+                                            stringRes(context, R.string.error_unable_to_fetch_invoice),
+                                            stringRes(
+                                                context,
+                                                R.string
+                                                    .unable_to_create_a_lightning_invoice_before_sending_the_zap_the_receiver_s_lightning_wallet_sent_the_following_error_with_user,
+                                                lnaddress,
+                                                reason,
+                                            ),
+                                        )
+                                    }
+                                ?: run {
+                                    onProgress(0.0f)
+                                    onError(
+                                        stringRes(context, R.string.error_unable_to_fetch_invoice),
+                                        stringRes(
+                                            context,
+                                            R.string
+                                                .unable_to_create_a_lightning_invoice_before_sending_the_zap_element_pr_not_found_in_the_resulting_json_with_user,
+                                            lnaddress,
+                                        ),
+                                    )
+                                }
+                        },
+                        onError = onError,
+                        context,
+                    )
+                }
+            },
+            onError = onError,
+            context,
+        )
+    }
+}
@@ -0,0 +1,38 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz.events.zaps
+
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.ui.screen.ZapReqResponse
+import com.vitorpamplona.quartz.events.LnZapEventInterface
+
+object UserZaps {
+    fun forProfileFeed(zaps: Map<Note, Note?>?): List<ZapReqResponse> {
+        if (zaps == null) return emptyList()
+
+        return (
+            zaps
+                .mapNotNull { entry -> entry.value?.let { ZapReqResponse(entry.key, it) } }
+                .sortedBy { (it.zapEvent.event as? LnZapEventInterface)?.amount() }
+                .reversed()
+        )
+    }
+}
@@ -0,0 +1,287 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.app.NotificationManager
+import android.content.Context
+import android.util.Log
+import androidx.core.content.ContextCompat
+import com.vitorpamplona.amethyst.LocalPreferences
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.service.notifications.NotificationUtils.sendDMNotification
+import com.vitorpamplona.amethyst.service.notifications.NotificationUtils.sendZapNotification
+import com.vitorpamplona.amethyst.ui.note.showAmount
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.quartz.encoders.toHexKey
+import com.vitorpamplona.quartz.events.ChatMessageEvent
+import com.vitorpamplona.quartz.events.ChatroomKey
+import com.vitorpamplona.quartz.events.Event
+import com.vitorpamplona.quartz.events.GiftWrapEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.LnZapRequestEvent
+import com.vitorpamplona.quartz.events.PrivateDmEvent
+import com.vitorpamplona.quartz.events.SealedGossipEvent
+import com.vitorpamplona.quartz.utils.TimeUtils
+import kotlinx.collections.immutable.persistentSetOf
+import java.math.BigDecimal
+
+class EventNotificationConsumer(
+    private val applicationContext: Context,
+) {
+    suspend fun consume(event: GiftWrapEvent) {
+        Log.d("EventNotificationConsumer", "New Notification Arrived")
+        if (!LocalCache.justVerify(event)) return
+        if (!notificationManager().areNotificationsEnabled()) return
+
+        // PushNotification Wraps don't include a receiver.
+        // Test with all logged in accounts
+        LocalPreferences.allSavedAccounts().forEach {
+            if (it.hasPrivKey || it.loggedInWithExternalSigner) {
+                LocalPreferences.loadCurrentAccountFromEncryptedStorage(it.npub)?.let { acc ->
+                    consumeIfMatchesAccount(event, acc)
+                }
+            }
+        }
+    }
+
+    private suspend fun consumeIfMatchesAccount(
+        pushWrappedEvent: GiftWrapEvent,
+        account: Account,
+    ) {
+        pushWrappedEvent.cachedGift(account.signer) { notificationEvent ->
+            val consumed = LocalCache.hasConsumed(notificationEvent)
+            val verified = LocalCache.justVerify(notificationEvent)
+            Log.d("EventNotificationConsumer", "New Notification Arrived for ${account.userProfile().toBestDisplayName()} consumed= $consumed && verified= $verified")
+            if (!consumed && verified) {
+                Log.d("EventNotificationConsumer", "New Notification was verified")
+                unwrapAndConsume(notificationEvent, account) { innerEvent ->
+
+                    Log.d("EventNotificationConsumer", "Unwrapped consume $consumed ${innerEvent.javaClass.simpleName}")
+                    if (!consumed) {
+                        if (innerEvent is PrivateDmEvent) {
+                            Log.d("EventNotificationConsumer", "New Nip-04 DM to Notify")
+                            notify(innerEvent, account)
+                        } else if (innerEvent is LnZapEvent) {
+                            Log.d("EventNotificationConsumer", "New Zap to Notify")
+                            notify(innerEvent, account)
+                        } else if (innerEvent is ChatMessageEvent) {
+                            Log.d("EventNotificationConsumer", "New ChatMessage to Notify")
+                            notify(innerEvent, account)
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private fun unwrapAndConsume(
+        event: Event,
+        account: Account,
+        onReady: (Event) -> Unit,
+    ) {
+        if (!LocalCache.justVerify(event)) return
+        if (LocalCache.hasConsumed(event)) return
+
+        when (event) {
+            is GiftWrapEvent -> {
+                event.cachedGift(account.signer) { unwrapAndConsume(it, account, onReady) }
+            }
+            is SealedGossipEvent -> {
+                event.cachedGossip(account.signer) {
+                    if (!LocalCache.hasConsumed(it)) {
+                        // this is not verifiable
+                        LocalCache.justConsume(it, null)
+                        onReady(it)
+                    }
+                }
+            }
+            else -> {
+                LocalCache.justConsume(event, null)
+                onReady(event)
+            }
+        }
+    }
+
+    private fun notify(
+        event: ChatMessageEvent,
+        acc: Account,
+    ) {
+        if (
+            event.createdAt > TimeUtils.fifteenMinutesAgo() &&
+            // old event being re-broadcasted
+            event.pubKey != acc.userProfile().pubkeyHex
+        ) { // from the user
+
+            val chatNote = LocalCache.getNoteIfExists(event.id) ?: return
+            val chatRoom = event.chatroomKey(acc.keyPair.pubKey.toHexKey())
+
+            val followingKeySet = acc.followingKeySet()
+
+            val isKnownRoom =
+                (
+                    acc.userProfile().privateChatrooms[chatRoom]?.senderIntersects(followingKeySet) == true ||
+                        acc.userProfile().hasSentMessagesTo(chatRoom)
+                ) &&
+                    !acc.isAllHidden(chatRoom.users)
+
+            if (isKnownRoom) {
+                val content = chatNote.event?.content() ?: ""
+                val user = chatNote.author?.toBestDisplayName() ?: ""
+                val userPicture = chatNote.author?.profilePicture()
+                val noteUri = chatNote.toNEvent()
+                notificationManager()
+                    .sendDMNotification(
+                        event.id,
+                        content,
+                        user,
+                        userPicture,
+                        noteUri,
+                        applicationContext,
+                    )
+            }
+        }
+    }
+
+    private fun notify(
+        event: PrivateDmEvent,
+        acc: Account,
+    ) {
+        val note = LocalCache.getNoteIfExists(event.id) ?: return
+
+        // old event being re-broadcast
+        if (event.createdAt < TimeUtils.fifteenMinutesAgo()) return
+
+        if (acc.userProfile().pubkeyHex == event.verifiedRecipientPubKey()) {
+            val followingKeySet = acc.followingKeySet()
+
+            val knownChatrooms =
+                acc
+                    .userProfile()
+                    .privateChatrooms
+                    .keys
+                    .filter {
+                        (
+                            acc.userProfile().privateChatrooms[it]?.senderIntersects(followingKeySet) == true ||
+                                acc.userProfile().hasSentMessagesTo(it)
+                        ) &&
+                            !acc.isAllHidden(it.users)
+                    }.toSet()
+
+            note.author?.let {
+                if (ChatroomKey(persistentSetOf(it.pubkeyHex)) in knownChatrooms) {
+                    acc.decryptContent(note) { content ->
+                        val user = note.author?.toBestDisplayName() ?: ""
+                        val userPicture = note.author?.profilePicture()
+                        val noteUri = note.toNEvent()
+                        notificationManager()
+                            .sendDMNotification(event.id, content, user, userPicture, noteUri, applicationContext)
+                    }
+                }
+            }
+        }
+    }
+
+    private fun notify(
+        event: LnZapEvent,
+        acc: Account,
+    ) {
+        Log.d("EventNotificationConsumer", "Notify Start ${event.toNostrUri()}")
+        val noteZapEvent = LocalCache.getNoteIfExists(event.id) ?: return
+
+        Log.d("EventNotificationConsumer", "Notify Not Notified Yet")
+
+        // old event being re-broadcast
+        if (event.createdAt < TimeUtils.fifteenMinutesAgo()) return
+
+        Log.d("EventNotificationConsumer", "Notify Not an old event")
+
+        val noteZapRequest = event.zapRequest?.id?.let { LocalCache.checkGetOrCreateNote(it) } ?: return
+        val noteZapped =
+            event.zappedPost().firstOrNull()?.let { LocalCache.checkGetOrCreateNote(it) } ?: return
+
+        Log.d("EventNotificationConsumer", "Notify ZapRequest $noteZapRequest zapped $noteZapped")
+
+        if ((event.amount ?: BigDecimal.ZERO) < BigDecimal.TEN) return
+
+        Log.d("EventNotificationConsumer", "Notify Amount Bigger than 10")
+
+        if (event.isTaggedUser(acc.userProfile().pubkeyHex)) {
+            val amount = showAmount(event.amount)
+
+            Log.d("EventNotificationConsumer", "Notify Amount $amount")
+
+            (noteZapRequest.event as? LnZapRequestEvent)?.let { event ->
+                acc.decryptZapContentAuthor(noteZapRequest) {
+                    Log.d("EventNotificationConsumer", "Notify Decrypted if Private Zap ${event.id}")
+
+                    val author = LocalCache.getOrCreateUser(it.pubKey)
+                    val senderInfo = Pair(author, it.content.ifBlank { null })
+
+                    acc.decryptContent(noteZapped) {
+                        Log.d("EventNotificationConsumer", "Notify Decrypted if Private Note")
+
+                        val zappedContent = it.split("\n").get(0)
+
+                        val user = senderInfo.first.toBestDisplayName()
+                        var title = stringRes(applicationContext, R.string.app_notification_zaps_channel_message, amount)
+                        senderInfo.second?.ifBlank { null }?.let { title += " ($it)" }
+
+                        var content =
+                            stringRes(
+                                applicationContext,
+                                R.string.app_notification_zaps_channel_message_from,
+                                user,
+                            )
+                        zappedContent.let {
+                            content +=
+                                " " +
+                                stringRes(
+                                    applicationContext,
+                                    R.string.app_notification_zaps_channel_message_for,
+                                    zappedContent,
+                                )
+                        }
+                        val userPicture = senderInfo?.first?.profilePicture()
+                        val noteUri = "nostr:Notifications"
+
+                        Log.d("EventNotificationConsumer", "Notify ${event.id} $content $title $noteUri")
+
+                        notificationManager()
+                            .sendZapNotification(
+                                event.id,
+                                content,
+                                title,
+                                userPicture,
+                                noteUri,
+                                applicationContext,
+                            )
+                    }
+                }
+            }
+        }
+    }
+
+    fun notificationManager(): NotificationManager =
+        ContextCompat.getSystemService(applicationContext, NotificationManager::class.java)
+            as NotificationManager
+}
@@ -0,0 +1,247 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.graphics.drawable.BitmapDrawable
+import android.net.Uri
+import android.service.notification.StatusBarNotification
+import androidx.core.app.NotificationCompat
+import coil.ImageLoader
+import coil.executeBlocking
+import coil.request.ImageRequest
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.ui.MainActivity
+import com.vitorpamplona.amethyst.ui.stringRes
+
+object NotificationUtils {
+    private var dmChannel: NotificationChannel? = null
+    private var zapChannel: NotificationChannel? = null
+    private const val DM_GROUP_KEY = "com.vitorpamplona.amethyst.DM_NOTIFICATION"
+    private const val ZAP_GROUP_KEY = "com.vitorpamplona.amethyst.ZAP_NOTIFICATION"
+
+    fun NotificationManager.getOrCreateDMChannel(applicationContext: Context): NotificationChannel {
+        if (dmChannel != null) return dmChannel!!
+
+        dmChannel =
+            NotificationChannel(
+                stringRes(applicationContext, R.string.app_notification_dms_channel_id),
+                stringRes(applicationContext, R.string.app_notification_dms_channel_name),
+                NotificationManager.IMPORTANCE_DEFAULT,
+            ).apply {
+                description =
+                    stringRes(applicationContext, R.string.app_notification_dms_channel_description)
+            }
+
+        // Register the channel with the system
+        val notificationManager: NotificationManager =
+            applicationContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+
+        notificationManager.createNotificationChannel(dmChannel!!)
+
+        return dmChannel!!
+    }
+
+    fun NotificationManager.getOrCreateZapChannel(applicationContext: Context): NotificationChannel {
+        if (zapChannel != null) return zapChannel!!
+
+        zapChannel =
+            NotificationChannel(
+                stringRes(applicationContext, R.string.app_notification_zaps_channel_id),
+                stringRes(applicationContext, R.string.app_notification_zaps_channel_name),
+                NotificationManager.IMPORTANCE_DEFAULT,
+            ).apply {
+                description =
+                    stringRes(applicationContext, R.string.app_notification_zaps_channel_description)
+            }
+
+        // Register the channel with the system
+        val notificationManager: NotificationManager =
+            applicationContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+
+        notificationManager.createNotificationChannel(zapChannel!!)
+
+        return zapChannel!!
+    }
+
+    fun NotificationManager.sendZapNotification(
+        id: String,
+        messageBody: String,
+        messageTitle: String,
+        pictureUrl: String?,
+        uri: String,
+        applicationContext: Context,
+    ) {
+        val zapChannel = getOrCreateZapChannel(applicationContext)
+        val channelId = stringRes(applicationContext, R.string.app_notification_zaps_channel_id)
+
+        sendNotification(
+            id,
+            messageBody,
+            messageTitle,
+            pictureUrl,
+            uri,
+            channelId,
+            ZAP_GROUP_KEY,
+            applicationContext,
+        )
+    }
+
+    fun NotificationManager.sendDMNotification(
+        id: String,
+        messageBody: String,
+        messageTitle: String,
+        pictureUrl: String?,
+        uri: String,
+        applicationContext: Context,
+    ) {
+        val dmChannel = getOrCreateDMChannel(applicationContext)
+        val channelId = stringRes(applicationContext, R.string.app_notification_dms_channel_id)
+
+        sendNotification(
+            id,
+            messageBody,
+            messageTitle,
+            pictureUrl,
+            uri,
+            channelId,
+            DM_GROUP_KEY,
+            applicationContext,
+        )
+    }
+
+    fun NotificationManager.sendNotification(
+        id: String,
+        messageBody: String,
+        messageTitle: String,
+        pictureUrl: String?,
+        uri: String,
+        channelId: String,
+        notificationGroupKey: String,
+        applicationContext: Context,
+    ) {
+        if (pictureUrl != null) {
+            val request = ImageRequest.Builder(applicationContext).data(pictureUrl).build()
+
+            val imageLoader = ImageLoader(applicationContext)
+            val imageResult = imageLoader.executeBlocking(request)
+            sendNotification(
+                id = id,
+                messageBody = messageBody,
+                messageTitle = messageTitle,
+                picture = imageResult.drawable as? BitmapDrawable,
+                uri = uri,
+                channelId,
+                notificationGroupKey,
+                applicationContext = applicationContext,
+            )
+        } else {
+            sendNotification(
+                id = id,
+                messageBody = messageBody,
+                messageTitle = messageTitle,
+                picture = null,
+                uri = uri,
+                channelId,
+                notificationGroupKey,
+                applicationContext = applicationContext,
+            )
+        }
+    }
+
+    private fun NotificationManager.sendNotification(
+        id: String,
+        messageBody: String,
+        messageTitle: String,
+        picture: BitmapDrawable?,
+        uri: String,
+        channelId: String,
+        notificationGroupKey: String,
+        applicationContext: Context,
+    ) {
+        val notId = id.hashCode()
+
+        // dont notify twice
+        val notifications: Array<StatusBarNotification> = getActiveNotifications()
+        for (notification in notifications) {
+            if (notification.id == notId) {
+                return
+            }
+        }
+
+        val contentIntent =
+            Intent(applicationContext, MainActivity::class.java).apply { data = Uri.parse(uri) }
+
+        val contentPendingIntent =
+            PendingIntent.getActivity(
+                applicationContext,
+                notId,
+                contentIntent,
+                PendingIntent.FLAG_MUTABLE,
+            )
+
+        // Build the notification
+        val builderPublic =
+            NotificationCompat
+                .Builder(
+                    applicationContext,
+                    channelId,
+                ).setSmallIcon(R.drawable.amethyst)
+                .setContentTitle(messageTitle)
+                .setContentText(stringRes(applicationContext, R.string.app_notification_private_message))
+                .setLargeIcon(picture?.bitmap)
+                // .setGroup(messageTitle)
+                // .setGroup(notificationGroupKey) //-> Might need a Group summary as well before we
+                // activate this
+                .setContentIntent(contentPendingIntent)
+                .setPriority(NotificationCompat.PRIORITY_HIGH)
+                .setAutoCancel(true)
+
+        // Build the notification
+        val builder =
+            NotificationCompat
+                .Builder(
+                    applicationContext,
+                    channelId,
+                ).setSmallIcon(R.drawable.amethyst)
+                .setContentTitle(messageTitle)
+                .setContentText(messageBody)
+                .setLargeIcon(picture?.bitmap)
+                // .setGroup(messageTitle)
+                // .setGroup(notificationGroupKey)  //-> Might need a Group summary as well before we
+                // activate this
+                .setContentIntent(contentPendingIntent)
+                .setPublicVersion(builderPublic.build())
+                .setPriority(NotificationCompat.PRIORITY_HIGH)
+                .setAutoCancel(true)
+
+        notify(notId, builder.build())
+    }
+
+    /** Cancels all notifications. */
+    fun NotificationManager.cancelNotifications() {
+        cancelAll()
+    }
+}
@@ -0,0 +1,185 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.util.Log
+import com.vitorpamplona.amethyst.AccountInfo
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.amethyst.LocalPreferences
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.events.AdvertisedRelayListEvent
+import com.vitorpamplona.quartz.events.ChatMessageRelayListEvent
+import com.vitorpamplona.quartz.events.RelayAuthEvent
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.async
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.joinAll
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlinx.coroutines.withContext
+import kotlinx.coroutines.withTimeoutOrNull
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.toRequestBody
+import kotlin.coroutines.resume
+
+class RegisterAccounts(
+    private val accounts: List<AccountInfo>,
+) {
+    val tag =
+        if (BuildConfig.FLAVOR == "play") {
+            "RegisterAccounts FirebaseMsgService"
+        } else {
+            "RegisterAccounts UnifiedPushService"
+        }
+
+    private suspend fun signAllAuths(
+        notificationToken: String,
+        remainingTos: List<Pair<Account, String>>,
+        output: MutableList<RelayAuthEvent>,
+        onReady: (List<RelayAuthEvent>) -> Unit,
+    ) {
+        if (remainingTos.isEmpty()) {
+            onReady(output)
+            return
+        }
+
+        coroutineScope {
+            val jobs =
+                remainingTos.map { accountRelayPair ->
+                    async {
+                        val result =
+                            withTimeoutOrNull(10000) {
+                                suspendCancellableCoroutine { continuation ->
+                                    accountRelayPair.first.createAuthEvent(accountRelayPair.second, notificationToken) { result ->
+                                        continuation.resume(result)
+                                    }
+                                }
+                            }
+
+                        if (result != null) {
+                            output.add(result)
+                        }
+                    }
+                }
+
+            // runs in parallel to avoid overcrowding Amber.
+            withTimeoutOrNull(15000) {
+                jobs.joinAll()
+            }
+        }
+
+        onReady(output)
+    }
+
+    // creates proof that it controls all accounts
+    private suspend fun signEventsToProveControlOfAccounts(
+        accounts: List<AccountInfo>,
+        notificationToken: String,
+        onReady: (List<RelayAuthEvent>) -> Unit,
+    ) {
+        val readyToSend =
+            accounts
+                .map {
+                    Log.d(tag, "Register Account ${it.npub}")
+
+                    val acc = LocalPreferences.loadCurrentAccountFromEncryptedStorage(it.npub)
+
+                    if (acc != null && acc.isWriteable()) {
+                        val nip65Read =
+                            (
+                                LocalCache
+                                    .getAddressableNoteIfExists(
+                                        AdvertisedRelayListEvent.createAddressTag(acc.userProfile().pubkeyHex),
+                                    )?.event as? AdvertisedRelayListEvent
+                            )?.readRelays() ?: acc.backupNIP65RelayList?.readRelays() ?: emptyList<String>()
+
+                        Log.d(tag, "Register Account ${acc.userProfile().toBestDisplayName()} NIP65 Reads ${nip65Read.joinToString(", ")}")
+
+                        val nip17Read =
+                            (
+                                LocalCache
+                                    .getAddressableNoteIfExists(
+                                        ChatMessageRelayListEvent.createAddressTag(acc.userProfile().pubkeyHex),
+                                    )?.event as? ChatMessageRelayListEvent
+                            )?.relays() ?: acc.backupDMRelayList?.relays() ?: emptyList<String>()
+
+                        Log.d(tag, "Register Account ${acc.userProfile().toBestDisplayName()} NIP17 Reads ${nip17Read.joinToString(", ")}")
+
+                        val kind3Relays = (acc.userProfile().latestContactList?.relays() ?: acc.backupContactList?.relays())
+                        val readKind3Relays = kind3Relays?.mapNotNull { if (it.value.read) it.key else null } ?: emptyList<String>()
+
+                        Log.d(tag, "Register Account ${acc.userProfile().toBestDisplayName()} Kind3 Reads ${readKind3Relays.joinToString(", ")}")
+
+                        (nip65Read + nip17Read + readKind3Relays).map {
+                            Pair(acc, it)
+                        }
+                    } else {
+                        emptyList<Pair<Account, String>>()
+                    }
+                }.flatten()
+
+        val listOfAuthEvents = mutableListOf<RelayAuthEvent>()
+        signAllAuths(
+            notificationToken,
+            readyToSend,
+            listOfAuthEvents,
+            onReady,
+        )
+    }
+
+    fun postRegistrationEvent(events: List<RelayAuthEvent>) {
+        try {
+            val jsonObject =
+                """{
+                "events": [ ${events.joinToString(", ") { it.toJson() }} ]
+            }
+            """
+
+            val mediaType = "application/json; charset=utf-8".toMediaType()
+            val body = jsonObject.toRequestBody(mediaType)
+
+            val request =
+                Request
+                    .Builder()
+                    .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                    .url("https://push.amethyst.social/register")
+                    .post(body)
+                    .build()
+
+            val client = HttpClientManager.getHttpClient()
+
+            val isSucess = client.newCall(request).execute().use { it.isSuccessful }
+        } catch (e: java.lang.Exception) {
+            if (e is CancellationException) throw e
+            Log.e(tag, "Unable to register with push server", e)
+        }
+    }
+
+    suspend fun go(notificationToken: String) =
+        withContext(Dispatchers.IO) {
+            signEventsToProveControlOfAccounts(accounts, notificationToken) { postRegistrationEvent(it) }
+
+            PushNotificationUtils.hasInit = true
+        }
+}
@@ -0,0 +1,103 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.ots
+
+import android.util.Log
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.ots.BitcoinExplorer
+import com.vitorpamplona.quartz.ots.BlockHeader
+import com.vitorpamplona.quartz.ots.exceptions.UrlException
+import okhttp3.Request
+
+class OkHttpBlockstreamExplorer : BitcoinExplorer {
+    /**
+     * Retrieve the block information from the block hash.
+     *
+     * @param hash Hash of the block.
+     * @return the blockheader of the hash
+     * @throws Exception desc
+     */
+    override fun block(hash: String): BlockHeader {
+        val client = HttpClientManager.getHttpClient()
+        val url = "$BLOCKSTREAM_API_URL/block/$hash"
+
+        val request =
+            Request.Builder()
+                .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                .header("Accept", "application/json")
+                .url(url)
+                .get()
+                .build()
+
+        client.newCall(request).execute().use {
+            if (it.isSuccessful) {
+                val jsonObject = jacksonObjectMapper().readTree(it.body.string())
+
+                val blockHeader = BlockHeader()
+                blockHeader.merkleroot = jsonObject["merkle_root"].asText()
+                blockHeader.setTime(jsonObject["timestamp"].asInt().toString())
+                blockHeader.blockHash = hash
+                Log.d("OkHttpBlockstreamExplorer", "$BLOCKSTREAM_API_URL/block/$hash")
+                return blockHeader
+            } else {
+                throw UrlException("Couldn't open $url: " + it.message + " " + it.code)
+            }
+        }
+    }
+
+    /**
+     * Retrieve the block hash from the block height.
+     *
+     * @param height Height of the block.
+     * @return the hash of the block at height height
+     * @throws Exception desc
+     */
+    @Throws(Exception::class)
+    override fun blockHash(height: Int): String {
+        val client = HttpClientManager.getHttpClient()
+
+        val url = "$BLOCKSTREAM_API_URL/block-height/$height"
+
+        val request =
+            Request.Builder()
+                .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                .url(url)
+                .get()
+                .build()
+
+        client.newCall(request).execute().use {
+            if (it.isSuccessful) {
+                val blockHash = it.body.string()
+
+                Log.d("OkHttpBlockstreamExplorer", "$url $blockHash")
+                return blockHash
+            } else {
+                throw UrlException(it.message)
+            }
+        }
+    }
+
+    companion object {
+        private const val BLOCKSTREAM_API_URL = "https://blockstream.info/api"
+    }
+}
@@ -0,0 +1,136 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.ots
+
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.ots.ICalendar
+import com.vitorpamplona.quartz.ots.StreamDeserializationContext
+import com.vitorpamplona.quartz.ots.Timestamp
+import com.vitorpamplona.quartz.ots.exceptions.CommitmentNotFoundException
+import com.vitorpamplona.quartz.ots.exceptions.DeserializationException
+import com.vitorpamplona.quartz.ots.exceptions.ExceededSizeException
+import com.vitorpamplona.quartz.ots.exceptions.UrlException
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.RequestBody.Companion.toRequestBody
+
+/**
+ * Class representing remote calendar server interface.
+ */
+class OkHttpCalendar(
+    val url: String,
+) : ICalendar {
+    /**
+     * Submitting a digest to remote calendar. Returns a com.eternitywall.ots.Timestamp committing to that digest.
+     *
+     * @param digest The digest hash to send.
+     * @return the Timestamp received from the calendar.
+     * @throws ExceededSizeException if response is too big.
+     * @throws UrlException          if url is not reachable.
+     * @throws DeserializationException    if the data is corrupt
+     */
+    @Throws(ExceededSizeException::class, UrlException::class, DeserializationException::class)
+    override fun submit(digest: ByteArray): Timestamp {
+        try {
+            val client = HttpClientManager.getHttpClient()
+            val url = "$url/digest"
+
+            val mediaType = "application/x-www-form-urlencoded; charset=utf-8".toMediaType()
+            val requestBody = digest.toRequestBody(mediaType)
+
+            val request =
+                okhttp3.Request
+                    .Builder()
+                    .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                    .header("Accept", "application/vnd.opentimestamps.v1")
+                    .header("Content-Type", "application/x-www-form-urlencoded")
+                    .url(url)
+                    .post(requestBody)
+                    .build()
+
+            client.newCall(request).execute().use {
+                if (it.isSuccessful) {
+                    val ctx = StreamDeserializationContext(it.body.bytes())
+                    return Timestamp.deserialize(ctx, digest)
+                } else {
+                    throw UrlException("Failed to open $url")
+                }
+            }
+        } catch (e: ExceededSizeException) {
+            throw e
+        } catch (e: DeserializationException) {
+            throw e
+        } catch (e: Exception) {
+            throw UrlException(e.message)
+        }
+    }
+
+    /**
+     * Get a timestamp for a given commitment.
+     *
+     * @param commitment The digest hash to send.
+     * @return the Timestamp from the calendar server (with blockchain information if already written).
+     * @throws ExceededSizeException       if response is too big.
+     * @throws UrlException                if url is not reachable.
+     * @throws CommitmentNotFoundException if commit is not found.
+     * @throws DeserializationException    if the data is corrupt
+     */
+    @Throws(
+        DeserializationException::class,
+        ExceededSizeException::class,
+        CommitmentNotFoundException::class,
+        UrlException::class,
+    )
+    override fun getTimestamp(commitment: ByteArray): Timestamp {
+        try {
+            val client = HttpClientManager.getHttpClient()
+            val url = url + "/timestamp/" + Hex.encode(commitment)
+
+            val request =
+                okhttp3.Request
+                    .Builder()
+                    .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                    .header("Accept", "application/vnd.opentimestamps.v1")
+                    .header("Content-Type", "application/x-www-form-urlencoded")
+                    .url(url)
+                    .get()
+                    .build()
+
+            client.newCall(request).execute().use {
+                if (it.isSuccessful) {
+                    val ctx = StreamDeserializationContext(it.body.bytes())
+                    return Timestamp.deserialize(ctx, commitment)
+                } else {
+                    throw CommitmentNotFoundException("Calendar response a status code != 200: " + it.code)
+                }
+            }
+        } catch (e: DeserializationException) {
+            throw e
+        } catch (e: ExceededSizeException) {
+            throw e
+        } catch (e: CommitmentNotFoundException) {
+            throw e
+        } catch (e: Exception) {
+            throw UrlException(e.message)
+        }
+    }
+}
@@ -0,0 +1,73 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.ots
+
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import com.vitorpamplona.quartz.ots.ICalendarAsyncSubmit
+import com.vitorpamplona.quartz.ots.StreamDeserializationContext
+import com.vitorpamplona.quartz.ots.Timestamp
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.RequestBody.Companion.toRequestBody
+import java.util.Optional
+import java.util.concurrent.BlockingQueue
+
+/**
+ * For making async calls to a calendar server
+ */
+class OkHttpCalendarAsyncSubmit(private val url: String, private val digest: ByteArray) : ICalendarAsyncSubmit {
+    private var queue: BlockingQueue<Optional<Timestamp>>? = null
+
+    fun setQueue(queue: BlockingQueue<Optional<Timestamp>>?) {
+        this.queue = queue
+    }
+
+    @Throws(Exception::class)
+    override fun call(): Optional<Timestamp> {
+        val client = HttpClientManager.getHttpClient()
+        val url = "$url/digest"
+
+        val mediaType = "application/x-www-form-urlencoded; charset=utf-8".toMediaType()
+        val requestBody = digest.toRequestBody(mediaType)
+
+        val request =
+            okhttp3.Request.Builder()
+                .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                .header("Accept", "application/vnd.opentimestamps.v1")
+                .header("Content-Type", "application/x-www-form-urlencoded")
+                .url(url)
+                .post(requestBody)
+                .build()
+
+        client.newCall(request).execute().use {
+            if (it.isSuccessful) {
+                val ctx = StreamDeserializationContext(it.body.bytes())
+                val timestamp = Timestamp.deserialize(ctx, digest)
+                val of = Optional.of(timestamp)
+                queue!!.add(of)
+                return of
+            } else {
+                queue!!.add(Optional.empty())
+                return Optional.empty()
+            }
+        }
+    }
+}
@@ -0,0 +1,38 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.ots
+
+import com.vitorpamplona.quartz.ots.CalendarBuilder
+import com.vitorpamplona.quartz.ots.ICalendar
+import com.vitorpamplona.quartz.ots.ICalendarAsyncSubmit
+
+class OkHttpCalendarBuilder : CalendarBuilder {
+    override fun newSyncCalendar(url: String): ICalendar {
+        return OkHttpCalendar(url)
+    }
+
+    override fun newAsyncCalendar(
+        url: String,
+        digest: ByteArray,
+    ): ICalendarAsyncSubmit {
+        return OkHttpCalendarAsyncSubmit(url, digest)
+    }
+}
@@ -0,0 +1,63 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.playback
+
+import androidx.media3.common.MediaItem
+import androidx.media3.common.util.UnstableApi
+import androidx.media3.datasource.okhttp.OkHttpDataSource
+import androidx.media3.exoplayer.drm.DrmSessionManagerProvider
+import androidx.media3.exoplayer.source.DefaultMediaSourceFactory
+import androidx.media3.exoplayer.source.MediaSource
+import androidx.media3.exoplayer.upstream.LoadErrorHandlingPolicy
+import com.vitorpamplona.amethyst.Amethyst
+import com.vitorpamplona.ammolite.service.HttpClientManager
+
+/**
+ * HLS LiveStreams cannot use cache.
+ */
+@UnstableApi
+class CustomMediaSourceFactory : MediaSource.Factory {
+    private var cachingFactory: MediaSource.Factory =
+        DefaultMediaSourceFactory(Amethyst.instance.videoCache.get(HttpClientManager.getHttpClient()))
+    private var nonCachingFactory: MediaSource.Factory =
+        DefaultMediaSourceFactory(OkHttpDataSource.Factory(HttpClientManager.getHttpClient()))
+
+    override fun setDrmSessionManagerProvider(drmSessionManagerProvider: DrmSessionManagerProvider): MediaSource.Factory {
+        cachingFactory.setDrmSessionManagerProvider(drmSessionManagerProvider)
+        nonCachingFactory.setDrmSessionManagerProvider(drmSessionManagerProvider)
+        return this
+    }
+
+    override fun setLoadErrorHandlingPolicy(loadErrorHandlingPolicy: LoadErrorHandlingPolicy): MediaSource.Factory {
+        cachingFactory.setLoadErrorHandlingPolicy(loadErrorHandlingPolicy)
+        nonCachingFactory.setLoadErrorHandlingPolicy(loadErrorHandlingPolicy)
+        return this
+    }
+
+    override fun getSupportedTypes(): IntArray = nonCachingFactory.supportedTypes
+
+    override fun createMediaSource(mediaItem: MediaItem): MediaSource {
+        if (mediaItem.mediaId.contains(".m3u8", true)) {
+            return nonCachingFactory.createMediaSource(mediaItem)
+        }
+        return cachingFactory.createMediaSource(mediaItem)
+    }
+}
@@ -0,0 +1,184 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.playback
+
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.util.LruCache
+import androidx.core.net.toUri
+import androidx.media3.common.C
+import androidx.media3.common.Player
+import androidx.media3.common.Player.PositionInfo
+import androidx.media3.common.Player.STATE_IDLE
+import androidx.media3.common.Player.STATE_READY
+import androidx.media3.exoplayer.ExoPlayer
+import androidx.media3.session.MediaSession
+import com.vitorpamplona.amethyst.ui.MainActivity
+import kotlinx.coroutines.DelicateCoroutinesApi
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import kotlin.math.abs
+
+class MultiPlayerPlaybackManager(
+    private val dataSourceFactory: androidx.media3.exoplayer.source.MediaSource.Factory? = null,
+    private val cachedPositions: VideoViewedPositionCache,
+) {
+    // protects from LruCache killing playing sessions
+    private val playingMap = mutableMapOf<String, MediaSession>()
+
+    private val cache =
+        object : LruCache<String, MediaSession>(10) { // up to 10 videos in the screen at the same time
+            override fun entryRemoved(
+                evicted: Boolean,
+                key: String?,
+                oldValue: MediaSession?,
+                newValue: MediaSession?,
+            ) {
+                super.entryRemoved(evicted, key, oldValue, newValue)
+
+                if (!playingMap.contains(key)) {
+                    oldValue?.let {
+                        it.player.release()
+                        it.release()
+                    }
+                }
+            }
+        }
+
+    private fun getCallbackIntent(
+        callbackUri: String,
+        applicationContext: Context,
+    ): PendingIntent =
+        PendingIntent.getActivity(
+            applicationContext,
+            0,
+            Intent(Intent.ACTION_VIEW, callbackUri.toUri(), applicationContext, MainActivity::class.java),
+            PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
+        )
+
+    @androidx.annotation.OptIn(androidx.media3.common.util.UnstableApi::class)
+    fun getMediaSession(
+        id: String,
+        uri: String,
+        callbackUri: String?,
+        context: Context,
+        applicationContext: Context,
+    ): MediaSession {
+        val existingSession = playingMap.get(id) ?: cache.get(id)
+        if (existingSession != null) return existingSession
+
+        val player =
+            ExoPlayer.Builder(context).run {
+                dataSourceFactory?.let { setMediaSourceFactory(it) }
+                build()
+            }
+
+        player.apply {
+            repeatMode = Player.REPEAT_MODE_ALL
+            videoScalingMode = C.VIDEO_SCALING_MODE_SCALE_TO_FIT
+            volume = 0f
+        }
+
+        val mediaSession =
+            MediaSession.Builder(context, player).run {
+                callbackUri?.let { setSessionActivity(getCallbackIntent(it, applicationContext)) }
+                setId(id)
+                build()
+            }
+
+        player.addListener(
+            object : Player.Listener {
+                // avoids saving positions for live streams otherwise caching goes crazy
+                val mustCachePositions = !uri.contains(".m3u8", true)
+
+                override fun onIsPlayingChanged(isPlaying: Boolean) {
+                    if (isPlaying) {
+                        player.setWakeMode(C.WAKE_MODE_NETWORK)
+                        playingMap.put(id, mediaSession)
+                    } else {
+                        player.setWakeMode(C.WAKE_MODE_NONE)
+                        if (mustCachePositions) {
+                            cachedPositions.add(uri, player.currentPosition)
+                        }
+                        cache.put(id, mediaSession)
+                        playingMap.remove(id, mediaSession)
+                    }
+                }
+
+                override fun onPlaybackStateChanged(playbackState: Int) {
+                    when (playbackState) {
+                        STATE_IDLE -> {
+                            // only saves if it wqs playing
+                            if (mustCachePositions && abs(player.currentPosition) > 1) {
+                                cachedPositions.add(uri, player.currentPosition)
+                            }
+                        }
+                        STATE_READY -> {
+                            if (mustCachePositions) {
+                                cachedPositions.get(uri)?.let { lastPosition ->
+                                    if (abs(player.currentPosition - lastPosition) > 5 * 60) {
+                                        player.seekTo(lastPosition)
+                                    }
+                                }
+                            }
+                        }
+                        else -> {
+                            // only saves if it wqs playing
+                            if (mustCachePositions && abs(player.currentPosition) > 1) {
+                                cachedPositions.add(uri, player.currentPosition)
+                            }
+                        }
+                    }
+                }
+
+                override fun onPositionDiscontinuity(
+                    oldPosition: PositionInfo,
+                    newPosition: PositionInfo,
+                    reason: Int,
+                ) {
+                    if (mustCachePositions && player.playbackState != STATE_IDLE) {
+                        cachedPositions.add(uri, newPosition.positionMs)
+                    }
+                }
+            },
+        )
+
+        cache.put(id, mediaSession)
+
+        return mediaSession
+    }
+
+    @OptIn(DelicateCoroutinesApi::class)
+    fun releaseAppPlayers() {
+        GlobalScope.launch(Dispatchers.Main) {
+            cache.evictAll()
+            playingMap.forEach {
+                it.value.player.release()
+                it.value.release()
+            }
+            playingMap.clear()
+        }
+    }
+
+    fun playingContent(): Collection<MediaSession> = playingMap.values
+}
@@ -0,0 +1,77 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.playback
+
+import android.content.ComponentName
+import android.content.Context
+import android.os.Bundle
+import android.util.Log
+import android.util.LruCache
+import androidx.media3.session.MediaController
+import androidx.media3.session.SessionToken
+import kotlinx.coroutines.CancellationException
+import java.util.concurrent.Executors
+
+object PlaybackClientController {
+    var executorService = Executors.newCachedThreadPool()
+    val cache = LruCache<Int, SessionToken>(1)
+
+    fun prepareController(
+        controllerID: String,
+        videoUri: String,
+        callbackUri: String?,
+        context: Context,
+        onReady: (MediaController) -> Unit,
+    ) {
+        try {
+            // creating a bundle object
+            // creating a bundle object
+            val bundle = Bundle()
+            bundle.putString("id", controllerID)
+            bundle.putString("uri", videoUri)
+            bundle.putString("callbackUri", callbackUri)
+
+            var session = cache.get(context.hashCode())
+            if (session == null) {
+                session = SessionToken(context, ComponentName(context, PlaybackService::class.java))
+                cache.put(context.hashCode(), session)
+            }
+
+            val controllerFuture =
+                MediaController.Builder(context, session).setConnectionHints(bundle).buildAsync()
+
+            controllerFuture.addListener(
+                {
+                    try {
+                        onReady(controllerFuture.get())
+                    } catch (e: Exception) {
+                        if (e is CancellationException) throw e
+                        Log.e("Playback Client", "Failed to load Playback Client for $videoUri", e)
+                    }
+                },
+                executorService,
+            )
+        } catch (e: Exception) {
+            if (e is CancellationException) throw e
+            Log.e("Playback Client", "Failed to load Playback Client for $videoUri", e)
+        }
+    }
+}
@@ -0,0 +1,122 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.playback
+
+import android.content.Intent
+import android.util.Log
+import androidx.annotation.OptIn
+import androidx.media3.common.util.UnstableApi
+import androidx.media3.session.MediaSession
+import androidx.media3.session.MediaSessionService
+import com.vitorpamplona.ammolite.service.HttpClientManager
+
+class PlaybackService : MediaSessionService() {
+    private var videoViewedPositionCache = VideoViewedPositionCache()
+
+    private var managerAllInOne: MultiPlayerPlaybackManager? = null
+
+    @OptIn(UnstableApi::class)
+    fun lazyDS(): MultiPlayerPlaybackManager {
+        managerAllInOne?.let {
+            return it
+        }
+
+        val newInstance = MultiPlayerPlaybackManager(CustomMediaSourceFactory(), videoViewedPositionCache)
+        managerAllInOne = newInstance
+        return newInstance
+    }
+
+    // Create your Player and MediaSession in the onCreate lifecycle event
+    @OptIn(UnstableApi::class)
+    override fun onCreate() {
+        super.onCreate()
+
+        Log.d("Lifetime Event", "PlaybackService.onCreate")
+
+        // Stop all videos and recreates all managers when the proxy changes.
+        HttpClientManager.proxyChangeListeners.add(this@PlaybackService::onProxyUpdated)
+    }
+
+    @OptIn(UnstableApi::class)
+    private fun onProxyUpdated() {
+        val toDestroyAllInOne = managerAllInOne
+
+        managerAllInOne = MultiPlayerPlaybackManager(CustomMediaSourceFactory(), videoViewedPositionCache)
+
+        toDestroyAllInOne?.releaseAppPlayers()
+    }
+
+    override fun onTaskRemoved(rootIntent: Intent?) {
+        super.onTaskRemoved(rootIntent)
+
+        Log.d("Lifetime Event", "onTaskRemoved")
+    }
+
+    override fun onDestroy() {
+        Log.d("Lifetime Event", "PlaybackService.onDestroy")
+
+        HttpClientManager.proxyChangeListeners.remove(this@PlaybackService::onProxyUpdated)
+
+        managerAllInOne?.releaseAppPlayers()
+
+        super.onDestroy()
+    }
+
+    override fun onUpdateNotification(
+        session: MediaSession,
+        startInForegroundRequired: Boolean,
+    ) {
+        // Updates any new player ready
+        super.onUpdateNotification(session, startInForegroundRequired)
+
+        // Overrides the notification with any player actually playing
+        managerAllInOne?.playingContent()?.forEach {
+            if (it.player.isPlaying) {
+                super.onUpdateNotification(it, startInForegroundRequired)
+            }
+        }
+
+        // Overrides again with playing with audio
+        managerAllInOne?.playingContent()?.forEach {
+            if (it.player.isPlaying && it.player.volume > 0) {
+                super.onUpdateNotification(it, startInForegroundRequired)
+            }
+        }
+    }
+
+    // Return a MediaSession to link with the MediaController that is making
+    // this request.
+    override fun onGetSession(controllerInfo: MediaSession.ControllerInfo): MediaSession? {
+        val id = controllerInfo.connectionHints.getString("id") ?: return null
+        val uri = controllerInfo.connectionHints.getString("uri") ?: return null
+        val callbackUri = controllerInfo.connectionHints.getString("callbackUri")
+
+        val manager = lazyDS()
+
+        return manager.getMediaSession(
+            id,
+            uri,
+            callbackUri,
+            context = this,
+            applicationContext = applicationContext,
+        )
+    }
+}
@@ -0,0 +1,76 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.playback
+
+import android.annotation.SuppressLint
+import android.content.Context
+import androidx.media3.database.StandaloneDatabaseProvider
+import androidx.media3.datasource.cache.CacheDataSource
+import androidx.media3.datasource.cache.LeastRecentlyUsedCacheEvictor
+import androidx.media3.datasource.cache.SimpleCache
+import androidx.media3.datasource.okhttp.OkHttpDataSource
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import okhttp3.OkHttpClient
+import java.io.File
+
+@SuppressLint("UnsafeOptInUsageError")
+class VideoCache {
+    var exoPlayerCacheSize: Long = 150 * 1024 * 1024 // 90MB
+
+    var leastRecentlyUsedCacheEvictor = LeastRecentlyUsedCacheEvictor(exoPlayerCacheSize)
+
+    lateinit var exoDatabaseProvider: StandaloneDatabaseProvider
+    lateinit var simpleCache: SimpleCache
+
+    lateinit var cacheDataSourceFactory: CacheDataSource.Factory
+
+    suspend fun initFileCache(context: Context) {
+        exoDatabaseProvider = StandaloneDatabaseProvider(context)
+
+        withContext(Dispatchers.IO) {
+            simpleCache =
+                SimpleCache(
+                    File(context.cacheDir, "exoplayer"),
+                    leastRecentlyUsedCacheEvictor,
+                    exoDatabaseProvider,
+                )
+        }
+    }
+
+    // This method should be called when proxy setting changes.
+    fun renewCacheFactory(client: OkHttpClient) {
+        cacheDataSourceFactory =
+            CacheDataSource.Factory()
+                .setCache(simpleCache)
+                .setUpstreamDataSourceFactory(
+                    OkHttpDataSource.Factory(client),
+                )
+                .setFlags(CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR)
+    }
+
+    fun get(client: OkHttpClient): CacheDataSource.Factory {
+        // Renews the factory because OkHttpMight have changed.
+        renewCacheFactory(client)
+
+        return cacheDataSourceFactory
+    }
+}
@@ -0,0 +1,38 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.playback
+
+import android.util.LruCache
+
+class VideoViewedPositionCache {
+    val cachedPosition = LruCache<String, Long>(100)
+
+    fun add(
+        uri: String,
+        position: Long,
+    ) {
+        cachedPosition.put(uri, position)
+    }
+
+    fun get(uri: String): Long? {
+        return cachedPosition.get(uri)
+    }
+}
@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.playback
+
+import okhttp3.WebSocket
+import okhttp3.WebSocketListener
+import okio.ByteString
+import java.util.concurrent.ConcurrentSkipListSet
+
+class WssDataStreamCollector : WebSocketListener() {
+    private val wssData = ConcurrentSkipListSet<ByteString>()
+
+    override fun onMessage(
+        webSocket: WebSocket,
+        bytes: ByteString,
+    ) {
+        wssData.add(bytes)
+    }
+
+    override fun onClosing(
+        webSocket: WebSocket,
+        code: Int,
+        reason: String,
+    ) {
+        super.onClosing(webSocket, code, reason)
+        wssData.removeAll(wssData)
+    }
+
+    fun canStream(): Boolean {
+        return wssData.size > 0
+    }
+
+    fun getNextStream(): ByteString {
+        return wssData.pollFirst()
+    }
+}
@@ -0,0 +1,112 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.playback
+
+import android.net.Uri
+import androidx.annotation.OptIn
+import androidx.media3.common.util.UnstableApi
+import androidx.media3.datasource.BaseDataSource
+import androidx.media3.datasource.DataSource
+import androidx.media3.datasource.DataSpec
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.WebSocket
+import kotlin.math.min
+
+@OptIn(UnstableApi::class)
+class WssStreamDataSource(val httpClient: OkHttpClient) : BaseDataSource(true) {
+    val dataStreamCollector: WssDataStreamCollector = WssDataStreamCollector()
+    var webSocketClient: WebSocket? = null
+
+    private var currentByteStream: ByteArray? = null
+    private var currentPosition = 0
+    private var remainingBytes = 0
+
+    override fun open(dataSpec: DataSpec): Long {
+        // Form the request and open the socket.
+        // Provide the listener
+        // which collects the data for us (Previous class).
+        webSocketClient =
+            httpClient.newWebSocket(
+                Request.Builder().apply {
+                    dataSpec.httpRequestHeaders.forEach { entry ->
+                        addHeader(entry.key, entry.value)
+                    }
+                }.url(dataSpec.uri.toString()).build(),
+                dataStreamCollector,
+            )
+
+        return -1 // Return -1 as the size is unknown (streaming)
+    }
+
+    override fun getUri(): Uri? {
+        webSocketClient?.request()?.url?.let {
+            return Uri.parse(it.toString())
+        }
+
+        return null
+    }
+
+    override fun read(
+        target: ByteArray,
+        offset: Int,
+        length: Int,
+    ): Int {
+        // return 0 (nothing read) when no data present...
+        if (currentByteStream == null && !dataStreamCollector.canStream()) {
+            return 0
+        }
+
+        // parse one (data) ByteString at a time.
+        // reset the current position and remaining bytes
+        // for every new data
+        if (currentByteStream == null) {
+            currentByteStream = dataStreamCollector.getNextStream().toByteArray()
+            currentPosition = 0
+            remainingBytes = currentByteStream?.size ?: 0
+        }
+
+        val readSize = min(length, remainingBytes)
+
+        currentByteStream?.copyInto(target, offset, currentPosition, currentPosition + readSize)
+        currentPosition += readSize
+        remainingBytes -= readSize
+
+        // once the data is read set currentByteStream to null
+        // so the next data would be collected to process in next
+        // iteration.
+        if (remainingBytes == 0) {
+            currentByteStream = null
+        }
+
+        return readSize
+    }
+
+    override fun close() {
+        // close the socket and relase the resources
+        webSocketClient?.cancel()
+    }
+
+    // Factory class for DataSource
+    class Factory(val okHttpClient: OkHttpClient) : DataSource.Factory {
+        override fun createDataSource(): DataSource = WssStreamDataSource(okHttpClient)
+    }
+}
@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.previews
+
+import kotlinx.coroutines.CancellationException
+
+class BahaUrlPreview(val url: String, var callback: IUrlPreviewCallback?) {
+    suspend fun fetchUrlPreview(timeOut: Int = 30000) =
+        try {
+            fetch(timeOut)
+        } catch (t: Throwable) {
+            if (t is CancellationException) throw t
+            callback?.onFailed(t)
+        }
+
+    private suspend fun fetch(timeOut: Int = 30000) {
+        callback?.onComplete(getDocument(url, timeOut))
+    }
+
+    fun cleanUp() {
+        callback = null
+    }
+}
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.previews
+
+interface IUrlPreviewCallback {
+    suspend fun onComplete(urlInfo: UrlInfoItem)
+
+    suspend fun onFailed(throwable: Throwable)
+}
@@ -0,0 +1,50 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.previews
+
+import androidx.compose.runtime.Immutable
+import okhttp3.MediaType
+import java.net.URL
+
+@Immutable
+class UrlInfoItem(
+    val url: String = "",
+    val title: String = "",
+    val description: String = "",
+    val image: String = "",
+    val mimeType: MediaType,
+) {
+    val verifiedUrl = kotlin.runCatching { URL(url) }.getOrNull()
+    val imageUrlFullPath =
+        if (image.startsWith("/")) {
+            URL(verifiedUrl, image).toString()
+        } else {
+            image
+        }
+
+    fun fetchComplete(): Boolean {
+        return url.isNotEmpty() && image.isNotEmpty()
+    }
+
+    fun allFetchComplete(): Boolean {
+        return title.isNotEmpty() && description.isNotEmpty() && image.isNotEmpty()
+    }
+}
@@ -0,0 +1,239 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.previews
+
+import com.vitorpamplona.amethyst.commons.preview.MetaTag
+import com.vitorpamplona.amethyst.commons.preview.MetaTagsParser
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.ammolite.service.HttpClientManager
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import okhttp3.MediaType
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.Request
+import okio.BufferedSource
+import okio.ByteString.Companion.decodeHex
+import okio.Options
+import java.nio.charset.Charset
+
+private const val ATTRIBUTE_VALUE_PROPERTY = "property"
+private const val ATTRIBUTE_VALUE_NAME = "name"
+private const val ATTRIBUTE_VALUE_ITEMPROP = "itemprop"
+private const val ATTRIBUTE_VALUE_CHARSET = "charset"
+private const val ATTRIBUTE_VALUE_HTTP_EQUIV = "http-equiv"
+
+// for <meta itemprop=... to get title
+private val META_X_TITLE =
+    arrayOf(
+        "og:title",
+        "twitter:title",
+        "title",
+    )
+
+// for <meta itemprop=... to get description
+private val META_X_DESCRIPTION =
+    arrayOf(
+        "og:description",
+        "twitter:description",
+        "description",
+    )
+
+// for <meta itemprop=... to get image
+private val META_X_IMAGE =
+    arrayOf(
+        "og:image",
+        "twitter:image",
+        "image",
+    )
+
+private const val CONTENT = "content"
+
+suspend fun getDocument(
+    url: String,
+    timeOut: Int = 30000,
+): UrlInfoItem =
+    withContext(Dispatchers.IO) {
+        val request: Request = Request.Builder().url(url).get().build()
+        HttpClientManager.getHttpClient().newCall(request).execute().use {
+            checkNotInMainThread()
+            if (it.isSuccessful) {
+                val mimeType =
+                    it.headers["Content-Type"]?.toMediaType()
+                        ?: throw IllegalArgumentException(
+                            "Website returned unknown mimetype: ${it.headers["Content-Type"]}",
+                        )
+                if (mimeType.type == "text" && mimeType.subtype == "html") {
+                    parseHtml(url, it.body.source(), mimeType)
+                } else if (mimeType.type == "image") {
+                    UrlInfoItem(url, image = url, mimeType = mimeType)
+                } else if (mimeType.type == "video") {
+                    UrlInfoItem(url, image = url, mimeType = mimeType)
+                } else {
+                    throw IllegalArgumentException(
+                        "Website returned unknown encoding for previews: $mimeType",
+                    )
+                }
+            } else {
+                throw IllegalArgumentException("Website returned: " + it.code)
+            }
+        }
+    }
+
+suspend fun parseHtml(
+    url: String,
+    source: BufferedSource,
+    type: MediaType,
+): UrlInfoItem =
+    withContext(Dispatchers.IO) {
+        // sniff charset from Content-Type header or BOM
+        val sniffedCharset = type.charset() ?: source.readBomAsCharset()
+        if (sniffedCharset != null) {
+            val metaTags = MetaTagsParser.parse(source.readByteArray().toString(sniffedCharset))
+            return@withContext extractUrlInfo(url, metaTags, type)
+        }
+
+        // if sniffing was failed, detect charset from content
+        val bodyBytes = source.readByteArray()
+        val charset = detectCharset(bodyBytes)
+        val metaTags = MetaTagsParser.parse(bodyBytes.toString(charset))
+        return@withContext extractUrlInfo(url, metaTags, type)
+    }
+
+// taken from okhttp
+private val UNICODE_BOMS =
+    Options.of(
+        // UTF-8
+        "efbbbf".decodeHex(),
+        // UTF-16BE
+        "feff".decodeHex(),
+        // UTF-16LE
+        "fffe".decodeHex(),
+        // UTF-32BE
+        "0000ffff".decodeHex(),
+        // UTF-32LE
+        "ffff0000".decodeHex(),
+    )
+
+private fun BufferedSource.readBomAsCharset(): Charset? {
+    return when (select(UNICODE_BOMS)) {
+        0 -> Charsets.UTF_8
+        1 -> Charsets.UTF_16BE
+        2 -> Charsets.UTF_16LE
+        3 -> Charsets.UTF_32BE
+        4 -> Charsets.UTF_32LE
+        -1 -> null
+        else -> throw AssertionError()
+    }
+}
+
+private val RE_CONTENT_TYPE_CHARSET = Regex("""charset=([^;]+)""")
+
+private fun detectCharset(bodyBytes: ByteArray): Charset {
+    // try to detect charset from meta tags parsed from first 1024 bytes of body
+    val firstPart = String(bodyBytes, 0, 1024, Charset.forName("utf-8"))
+    val metaTags = MetaTagsParser.parse(firstPart)
+    metaTags.forEach { meta ->
+        val charsetAttr = meta.attr(ATTRIBUTE_VALUE_CHARSET)
+        if (charsetAttr.isNotEmpty()) {
+            runCatching { Charset.forName(charsetAttr) }.getOrNull()?.let {
+                return it
+            }
+        }
+        if (meta.attr(ATTRIBUTE_VALUE_HTTP_EQUIV).lowercase() == "content-type") {
+            RE_CONTENT_TYPE_CHARSET.find(meta.attr(CONTENT))
+                ?.let {
+                    runCatching { Charset.forName(it.groupValues[1]) }.getOrNull()
+                }?.let {
+                    return it
+                }
+        }
+    }
+    // defaults to UTF-8
+    return Charset.forName("utf-8")
+}
+
+private fun extractUrlInfo(
+    url: String,
+    metaTags: Sequence<MetaTag>,
+    type: MediaType,
+): UrlInfoItem {
+    var title: String = ""
+    var description: String = ""
+    var image: String = ""
+
+    metaTags.forEach {
+        when (it.attr(ATTRIBUTE_VALUE_PROPERTY)) {
+            in META_X_TITLE ->
+                if (title.isEmpty()) {
+                    title = it.attr(CONTENT)
+                }
+
+            in META_X_DESCRIPTION ->
+                if (description.isEmpty()) {
+                    description = it.attr(CONTENT)
+                }
+
+            in META_X_IMAGE ->
+                if (image.isEmpty()) {
+                    image = it.attr(CONTENT)
+                }
+        }
+
+        when (it.attr(ATTRIBUTE_VALUE_NAME)) {
+            in META_X_TITLE ->
+                if (title.isEmpty()) {
+                    title = it.attr(CONTENT)
+                }
+
+            in META_X_DESCRIPTION ->
+                if (description.isEmpty()) {
+                    description = it.attr(CONTENT)
+                }
+
+            in META_X_IMAGE ->
+                if (image.isEmpty()) {
+                    image = it.attr(CONTENT)
+                }
+        }
+
+        when (it.attr(ATTRIBUTE_VALUE_ITEMPROP)) {
+            in META_X_TITLE ->
+                if (title.isEmpty()) {
+                    title = it.attr(CONTENT)
+                }
+
+            in META_X_DESCRIPTION ->
+                if (description.isEmpty()) {
+                    description = it.attr(CONTENT)
+                }
+
+            in META_X_IMAGE ->
+                if (image.isEmpty()) {
+                    image = it.attr(CONTENT)
+                }
+        }
+
+        if (title.isNotEmpty() && description.isNotEmpty() && image.isNotEmpty()) {
+            return UrlInfoItem(url, title, description, image, type)
+        }
+    }
+    return UrlInfoItem(url, title, description, image, type)
+}
@@ -0,0 +1,77 @@
+/**
+ * Copyright (c) 2024 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.service.relays
+
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.ammolite.relays.EOSETime
+
+class EOSERelayList(var relayList: Map<String, EOSETime> = emptyMap()) {
+    fun addOrUpdate(
+        relayUrl: String,
+        time: Long,
+    ) {
+        val eose = relayList[relayUrl]
+        if (eose == null) {
+            relayList = relayList + Pair(relayUrl, EOSETime(time))
+        } else {
+            eose.time = time
+        }
+    }
+}
+
+class EOSEFollowList(var followList: Map<String, EOSERelayList> = emptyMap()) {
+    fun addOrUpdate(
+        listCode: String,
+        relayUrl: String,
+        time: Long,
+    ) {
+        val relayList = followList[listCode]
+        if (relayList == null) {
+            val newList = EOSERelayList()
+            newList.addOrUpdate(relayUrl, time)
+            followList = followList + mapOf(listCode to newList)
+        } else {
+            relayList.addOrUpdate(relayUrl, time)
+        }
+    }
+}
+
+class EOSEAccount(var users: Map<User, EOSEFollowList> = emptyMap()) {
+    fun addOrUpdate(
+        user: User,
+        listCode: String,
+        relayUrl: String,
+        time: Long,
+    ) {
+        val followList = users[user]
+        if (followList == null) {
+            val newList = EOSEFollowList()
+            newList.addOrUpdate(listCode, relayUrl, time)
+            users = users + mapOf(user to newList)
+        } else {
+            followList.addOrUpdate(listCode, relayUrl, time)
+        }
+    }
+
+    fun removeDataFor(user: User) {
+        users = users.minus(user)
+    }
+}
--- a/Show More
+++ b/Show More