Merge pull request #1627 from greenart7c3/payto_part1

Payment targets - part 1

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/experimental/nipA3/PaymentTarget.kt

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2025 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.experimental.nipA3
+
+class PaymentTarget(
+    val type: String,
+    val authority: String,
+)

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/experimental/nipA3/PaymentTargetTag.kt

@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2025 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.experimental.nipA3
+
+import com.vitorpamplona.quartz.nip01Core.core.has
+import com.vitorpamplona.quartz.utils.ensure
+
+class PaymentTargetTag {
+    companion object {
+        const val TAG_NAME = "payto"
+
+        fun match(tag: Array<String>) = tag.has(1) && tag[0] == TAG_NAME && tag[1].isNotEmpty()
+
+        fun notMatch(tag: Array<String>) = !(tag.has(0) && tag[0] == TAG_NAME)
+
+        fun parse(tag: Array<String>): PaymentTarget? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(tag[1].isNotEmpty()) { return null }
+            ensure(tag[2].isNotEmpty()) { return null }
+
+            val paymentTarget = PaymentTarget(tag[1], tag[2])
+
+            return paymentTarget
+        }
+
+        fun assemble(paymentTarget: PaymentTarget) = arrayOf(TAG_NAME, paymentTarget.type, paymentTarget.authority)
+    }
+}

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/experimental/nipA3/PaymentTargetsEvent.kt

@@ -0,0 +1,62 @@
+/**
+ * Copyright (c) 2025 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.experimental.nipA3
+
+import com.vitorpamplona.quartz.nip01Core.core.BaseReplaceableEvent
+import com.vitorpamplona.quartz.nip01Core.core.HexKey
+import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
+import com.vitorpamplona.quartz.utils.TimeUtils
+
+class PaymentTargetsEvent(
+    id: HexKey,
+    pubKey: HexKey,
+    createdAt: Long,
+    tags: Array<Array<String>>,
+    content: String,
+    sig: HexKey,
+) : BaseReplaceableEvent(id, pubKey, createdAt, KIND, tags, content, sig) {
+    companion object {
+        const val KIND = 10133
+
+        suspend fun updatePaymentTargets(
+            earlierVersion: PaymentTargetsEvent,
+            targets: List<PaymentTarget>,
+            signer: NostrSigner,
+            createdAt: Long = TimeUtils.now(),
+        ): PaymentTargetsEvent {
+            val tags =
+                earlierVersion.tags
+                    .filter(PaymentTargetTag::notMatch)
+                    .plus(targets.map { PaymentTargetTag.assemble(it) })
+                    .toTypedArray()
+
+            return signer.sign(createdAt, KIND, tags, earlierVersion.content)
+        }
+
+        fun createPaymentTargets(targets: List<PaymentTarget>) = targets.map { PaymentTargetTag.assemble(it) }.toTypedArray()
+
+        suspend fun create(
+            targets: List<PaymentTarget>,
+            signer: NostrSigner,
+            createdAt: Long = TimeUtils.now(),
+        ): PaymentTargetsEvent = signer.sign(createdAt, KIND, createPaymentTargets(targets), "")
+    }
+}

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/utils/EventFactory.kt

@@ -31,6 +31,7 @@ import com.vitorpamplona.quartz.experimental.interactiveStories.InteractiveStory
 import com.vitorpamplona.quartz.experimental.medical.FhirResourceEvent
 import com.vitorpamplona.quartz.experimental.nip95.data.FileStorageEvent
 import com.vitorpamplona.quartz.experimental.nip95.header.FileStorageHeaderEvent
+import com.vitorpamplona.quartz.experimental.nipA3.PaymentTargetsEvent
 import com.vitorpamplona.quartz.experimental.nns.NNSEvent
 import com.vitorpamplona.quartz.experimental.profileGallery.ProfileGalleryEntryEvent
 import com.vitorpamplona.quartz.experimental.publicMessages.PublicMessageEvent
@@ -272,6 +273,7 @@ class EventFactory {
                 NIP90UserDiscoveryRequestEvent.KIND -> NIP90UserDiscoveryRequestEvent(id, pubKey, createdAt, tags, content, sig)
                 NIP90UserDiscoveryResponseEvent.KIND -> NIP90UserDiscoveryResponseEvent(id, pubKey, createdAt, tags, content, sig)
                 OtsEvent.KIND -> OtsEvent(id, pubKey, createdAt, tags, content, sig)
+                PaymentTargetsEvent.KIND -> PaymentTargetsEvent(id, pubKey, createdAt, tags, content, sig)
                 PeopleListEvent.KIND -> PeopleListEvent(id, pubKey, createdAt, tags, content, sig)
                 PictureEvent.KIND -> PictureEvent(id, pubKey, createdAt, tags, content, sig)
                 PinListEvent.KIND -> PinListEvent(id, pubKey, createdAt, tags, content, sig)