- Adds support for Follow packs

- Enables top filter by pack as well.

amethyst/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -29,6 +29,7 @@ import com.vitorpamplona.amethyst.Amethyst
 import com.vitorpamplona.amethyst.BuildConfig
 import com.vitorpamplona.amethyst.commons.richtext.MediaUrlImage
 import com.vitorpamplona.amethyst.commons.richtext.RichTextParser
+import com.vitorpamplona.amethyst.model.Account.Companion.APP_SPECIFIC_DATA_D_TAG
 import com.vitorpamplona.amethyst.service.checkNotInMainThread
 import com.vitorpamplona.amethyst.service.location.LocationState
 import com.vitorpamplona.amethyst.service.ots.OtsResolverBuilder
@@ -140,6 +141,7 @@ import com.vitorpamplona.quartz.nip47WalletConnect.Nip47WalletConnect
 import com.vitorpamplona.quartz.nip47WalletConnect.Response
 import com.vitorpamplona.quartz.nip50Search.SearchRelayListEvent
 import com.vitorpamplona.quartz.nip51Lists.BookmarkListEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.GeneralListEvent
 import com.vitorpamplona.quartz.nip51Lists.MuteListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
@@ -194,6 +196,7 @@ import kotlinx.coroutines.flow.emitAll
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.flow.toSet
 import kotlinx.coroutines.flow.transformLatest
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
@@ -697,9 +700,11 @@ class Account(
                 LiveFollowList(authorsPlusMe = setOf(signer.pubKey))
             }
         } else {
-            val peopleList = noteState.note.event as? GeneralListEvent
+            val noteEvent = noteState.note.event
-            if (peopleList != null) {
+            if (noteEvent is GeneralListEvent) {
-                waitToDecrypt(peopleList) ?: LiveFollowList(authorsPlusMe = setOf(signer.pubKey))
+                waitToDecrypt(noteEvent) ?: LiveFollowList(authorsPlusMe = setOf(signer.pubKey))
+            } else if (noteEvent is FollowListEvent) {
+                LiveFollowList(authors = noteEvent.pubKeys().toSet(), authorsPlusMe = setOf(signer.pubKey) + noteEvent.pubKeys())
             } else {
                 LiveFollowList(authorsPlusMe = setOf(signer.pubKey))
             }
@@ -3622,10 +3627,15 @@ class Account(
     fun getAllPeopleLists(pubkey: HexKey): List<AddressableNote> =
         LocalCache.addressables
             .filter { _, addressableNote ->
-                val event = (addressableNote.event as? PeopleListEvent)
+                val noteEvent = addressableNote.event
-                event != null &&
+
-                    event.pubKey == pubkey &&
+                if (noteEvent is PeopleListEvent) {
-                    (event.hasAnyTaggedUser() || event.cachedPrivateTags()?.isNotEmpty() == true)
+                    noteEvent.pubKey == pubkey && (noteEvent.hasAnyTaggedUser() || noteEvent.cachedPrivateTags()?.isNotEmpty() == true)
+                } else if (noteEvent is FollowListEvent) {
+                    noteEvent.pubKey == pubkey && noteEvent.hasAnyTaggedUser()
+                } else {
+                    false
+                }
             }
 
     fun markAsRead(

amethyst/src/main/java/com/vitorpamplona/amethyst/model/LocalCache.kt

@@ -109,6 +109,7 @@ import com.vitorpamplona.quartz.nip47WalletConnect.LnZapPaymentRequestEvent
 import com.vitorpamplona.quartz.nip47WalletConnect.LnZapPaymentResponseEvent
 import com.vitorpamplona.quartz.nip50Search.SearchRelayListEvent
 import com.vitorpamplona.quartz.nip51Lists.BookmarkListEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.MuteListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import com.vitorpamplona.quartz.nip51Lists.PinListEvent
@@ -828,6 +829,13 @@ object LocalCache : ILocalCache {
         consumeBaseReplaceable(event, relay)
     }
 
+    fun consume(
+        event: FollowListEvent,
+        relay: Relay?,
+    ) {
+        consumeBaseReplaceable(event, relay)
+    }
+
     private fun consume(
         event: AdvertisedRelayListEvent,
         relay: Relay?,
@@ -2622,6 +2630,7 @@ object LocalCache : ILocalCache {
                 is FileServersEvent -> consume(event, relay)
                 is FileStorageEvent -> consume(event, relay)
                 is FileStorageHeaderEvent -> consume(event, relay)
+                is FollowListEvent -> consume(event, relay)
                 is GiftWrapEvent -> consume(event, relay)
                 is GitIssueEvent -> consume(event, relay)
                 is GitReplyEvent -> consume(event, relay)

amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/account/AccountFilterAssembler.kt

@@ -53,6 +53,7 @@ import com.vitorpamplona.quartz.nip38UserStatus.StatusEvent
 import com.vitorpamplona.quartz.nip47WalletConnect.LnZapPaymentResponseEvent
 import com.vitorpamplona.quartz.nip50Search.SearchRelayListEvent
 import com.vitorpamplona.quartz.nip51Lists.BookmarkListEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.MuteListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import com.vitorpamplona.quartz.nip52Calendar.CalendarDateSlotEvent
@@ -135,6 +136,7 @@ class AccountFilterAssembler(
                     kinds =
                         listOf(
                             PeopleListEvent.KIND,
+                            FollowListEvent.KIND,
                             MuteListEvent.KIND,
                             BadgeProfilesEvent.KIND,
                             EmojiPackSelectionEvent.KIND,

amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/searchCommand/SearchFilterAssembler.kt

@@ -55,6 +55,7 @@ import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelCreateEvent
 import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelMetadataEvent
 import com.vitorpamplona.quartz.nip30CustomEmoji.pack.EmojiPackEvent
 import com.vitorpamplona.quartz.nip51Lists.BookmarkListEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import com.vitorpamplona.quartz.nip51Lists.PinListEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
@@ -226,6 +227,7 @@ class SearchFilterAssembler(
                                         listOf(
                                             InteractiveStoryPrologueEvent.KIND,
                                             InteractiveStorySceneEvent.KIND,
+                                            FollowListEvent.KIND,
                                         ),
                                     search = mySearchString,
                                     limit = 100,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/navigation/FeedFilterSpinner.kt

@@ -70,6 +70,7 @@ import com.vitorpamplona.amethyst.ui.stringRes
 import com.vitorpamplona.amethyst.ui.theme.Size20Modifier
 import com.vitorpamplona.amethyst.ui.theme.StdHorzSpacer
 import com.vitorpamplona.amethyst.ui.theme.placeholderText
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import kotlinx.collections.immutable.ImmutableList
 
@@ -252,7 +253,15 @@ fun RenderOption(option: Name) {
             ) {
                 val noteState by observeNote(option.note)
 
-                val name = (noteState?.note?.event as? PeopleListEvent)?.nameOrTitle() ?: option.note.dTag() ?: ""
+                val noteEvent = noteState.note.event
+                val name =
+                    if (noteEvent is PeopleListEvent) {
+                        noteEvent.nameOrTitle() ?: option.note.dTag()
+                    } else if (noteEvent is FollowListEvent) {
+                        noteEvent.nameOrTitle() ?: option.note.dTag()
+                    } else {
+                        option.note.dTag()
+                    }
 
                 Text(text = name, color = MaterialTheme.colorScheme.onSurface)
             }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/NoteCompose.kt

@@ -80,6 +80,7 @@ import com.vitorpamplona.amethyst.ui.note.elements.ShowForkInformation
 import com.vitorpamplona.amethyst.ui.note.elements.TimeAgo
 import com.vitorpamplona.amethyst.ui.note.types.BadgeDisplay
 import com.vitorpamplona.amethyst.ui.note.types.DisplayDMRelayList
+import com.vitorpamplona.amethyst.ui.note.types.DisplayFollowList
 import com.vitorpamplona.amethyst.ui.note.types.DisplayNIP65RelayList
 import com.vitorpamplona.amethyst.ui.note.types.DisplayPeopleList
 import com.vitorpamplona.amethyst.ui.note.types.DisplayRelaySet
@@ -181,6 +182,7 @@ import com.vitorpamplona.quartz.nip35Torrents.TorrentCommentEvent
 import com.vitorpamplona.quartz.nip35Torrents.TorrentEvent
 import com.vitorpamplona.quartz.nip37Drafts.DraftEvent
 import com.vitorpamplona.quartz.nip50Search.SearchRelayListEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import com.vitorpamplona.quartz.nip51Lists.PinListEvent
 import com.vitorpamplona.quartz.nip51Lists.RelaySetEvent
@@ -624,6 +626,7 @@ private fun RenderNoteRow(
         is BadgeAwardEvent -> RenderBadgeAward(baseNote, backgroundColor, accountViewModel, nav)
         is FhirResourceEvent -> RenderFhirResource(baseNote, accountViewModel, nav)
         is PeopleListEvent -> DisplayPeopleList(baseNote, backgroundColor, accountViewModel, nav)
+        is FollowListEvent -> DisplayFollowList(baseNote, backgroundColor, accountViewModel, nav)
         is RelaySetEvent -> DisplayRelaySet(baseNote, backgroundColor, accountViewModel, nav)
         is ChatMessageRelayListEvent -> DisplayDMRelayList(baseNote, backgroundColor, accountViewModel, nav)
         is AdvertisedRelayListEvent -> DisplayNIP65RelayList(baseNote, backgroundColor, accountViewModel, nav)

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/types/FollowList.kt

@@ -0,0 +1,134 @@
+/**
+ * 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.note.types
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.derivedStateOf
+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.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.ui.components.ShowMoreButton
+import com.vitorpamplona.amethyst.ui.navigation.INav
+import com.vitorpamplona.amethyst.ui.note.UserCompose
+import com.vitorpamplona.amethyst.ui.note.getGradient
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.amethyst.ui.theme.DividerThickness
+import com.vitorpamplona.quartz.nip01Core.tags.people.taggedUserIds
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.persistentListOf
+
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+fun DisplayFollowList(
+    baseNote: Note,
+    backgroundColor: MutableState<Color>,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    val noteEvent = baseNote.event as? FollowListEvent ?: return
+
+    var members by remember { mutableStateOf<ImmutableList<User>>(persistentListOf()) }
+
+    var expanded by remember { mutableStateOf(false) }
+
+    val toMembersShow =
+        if (expanded) {
+            members
+        } else {
+            members.take(3)
+        }
+
+    val name by remember { derivedStateOf { "#${noteEvent.nameOrTitle() ?: noteEvent.dTag()}" } }
+
+    Text(
+        text = name,
+        fontWeight = FontWeight.Bold,
+        maxLines = 1,
+        overflow = TextOverflow.Ellipsis,
+        modifier =
+            Modifier
+                .fillMaxWidth()
+                .padding(5.dp),
+        textAlign = TextAlign.Center,
+    )
+
+    LaunchedEffect(Unit) {
+        accountViewModel.loadUsers(noteEvent.taggedUserIds()) {
+            members = it
+        }
+    }
+
+    Box {
+        FlowRow(modifier = Modifier.padding(top = 5.dp)) {
+            toMembersShow.forEach { user ->
+                Column(modifier = Modifier.fillMaxWidth()) {
+                    UserCompose(
+                        user,
+                        accountViewModel = accountViewModel,
+                        nav = nav,
+                    )
+
+                    HorizontalDivider(
+                        thickness = DividerThickness,
+                    )
+                }
+            }
+        }
+
+        if (members.size > 3 && !expanded) {
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.Center,
+                modifier =
+                    Modifier
+                        .align(Alignment.BottomCenter)
+                        .fillMaxWidth()
+                        .background(getGradient(backgroundColor)),
+            ) {
+                ShowMoreButton { expanded = !expanded }
+            }
+        }
+    }
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/FollowListState.kt

@@ -45,6 +45,7 @@ import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
 import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
 import com.vitorpamplona.quartz.nip23LongContent.LongTextNoteEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.MuteListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import com.vitorpamplona.quartz.nip51Lists.PinListEvent
@@ -135,6 +136,7 @@ class FollowListState(
                     (
                         (
                             noteEvent is PeopleListEvent ||
+                                noteEvent is FollowListEvent ||
                                 noteEvent is MuteListEvent ||
                                 noteEvent is ContactListEvent
                         ) ||
@@ -288,13 +290,22 @@ class ResourceName(
 class PeopleListName(
     val note: AddressableNote,
 ) : Name() {
-    override fun name() = (note.event as? PeopleListEvent)?.nameOrTitle() ?: note.dTag() ?: ""
+    override fun name(): String {
+        val noteEvent = note.event
+        return if (noteEvent is PeopleListEvent) {
+            noteEvent.nameOrTitle() ?: note.dTag()
+        } else if (noteEvent is FollowListEvent) {
+            noteEvent.nameOrTitle() ?: note.dTag()
+        } else {
+            note.dTag()
+        }
+    }
 }
 
 class CommunityName(
     val note: AddressableNote,
 ) : Name() {
-    override fun name() = "/n/${(note.dTag() ?: "")}"
+    override fun name() = "/n/${(note.dTag())}"
 }
 
 @Immutable

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/dal/DiscoverChatFeedFilter.kt

@@ -67,7 +67,7 @@ open class DiscoverChatFeedFilter(
     override fun applyFilter(collection: Set<Note>): Set<Note> = innerApplyFilter(collection)
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             userHex = account.userProfile().pubkeyHex,
             selectedListName = account.settings.defaultDiscoveryFollowList.value,
             followLists = account.liveDiscoveryFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/dal/DiscoverCommunityFeedFilter.kt

@@ -44,7 +44,7 @@ open class DiscoverCommunityFeedFilter(
 
     override fun feed(): List<Note> {
         val filterParams =
-            FilterByListParams.Companion.create(
+            FilterByListParams.create(
                 userHex = account.userProfile().pubkeyHex,
                 selectedListName = account.settings.defaultDiscoveryFollowList.value,
                 followLists = account.liveDiscoveryFollowLists.value,
@@ -73,7 +73,7 @@ open class DiscoverCommunityFeedFilter(
     protected open fun innerApplyFilter(collection: Collection<Note>): Set<Note> {
         // here, we need to look for CommunityDefinition in new collection AND new CommunityDefinition from Post Approvals
         val filterParams =
-            FilterByListParams.Companion.create(
+            FilterByListParams.create(
                 userHex = account.userProfile().pubkeyHex,
                 selectedListName = account.settings.defaultDiscoveryFollowList.value,
                 followLists = account.liveDiscoveryFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/dal/DiscoverLiveFeedFilter.kt

@@ -55,7 +55,7 @@ open class DiscoverLiveFeedFilter(
 
     protected open fun innerApplyFilter(collection: Collection<Note>): Set<Note> {
         val filterParams =
-            FilterByListParams.Companion.create(
+            FilterByListParams.create(
                 userHex = account.userProfile().pubkeyHex,
                 selectedListName = account.settings.defaultDiscoveryFollowList.value,
                 followLists = account.liveDiscoveryFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/dal/DiscoverMarketplaceFeedFilter.kt

@@ -55,7 +55,7 @@ open class DiscoverMarketplaceFeedFilter(
     override fun applyFilter(collection: Set<Note>): Set<Note> = innerApplyFilter(collection)
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             account.userProfile().pubkeyHex,
             account.settings.defaultDiscoveryFollowList.value,
             account.liveDiscoveryFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/dal/DiscoverNIP89FeedFilter.kt

@@ -56,7 +56,7 @@ open class DiscoverNIP89FeedFilter(
     override fun applyFilter(collection: Set<Note>): Set<Note> = innerApplyFilter(collection)
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             account.userProfile().pubkeyHex,
             account.settings.defaultDiscoveryFollowList.value,
             account.liveDiscoveryFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/dvms/dal/NIP90ContentDiscoveryResponseFilter.kt

@@ -43,8 +43,8 @@ open class NIP90ContentDiscoveryResponseFilter(
     open fun followList(): String = account.settings.defaultDiscoveryFollowList.value
 
     override fun showHiddenKey(): Boolean =
-        followList() == PeopleListEvent.Companion.blockListFor(account.userProfile().pubkeyHex) ||
+        followList() == PeopleListEvent.blockListFor(account.userProfile().pubkeyHex) ||
-            followList() == MuteListEvent.Companion.blockListFor(account.userProfile().pubkeyHex)
+            followList() == MuteListEvent.blockListFor(account.userProfile().pubkeyHex)
 
     fun acceptableEvent(note: Note): Boolean {
         val noteEvent = note.event
@@ -72,7 +72,7 @@ open class NIP90ContentDiscoveryResponseFilter(
     override fun applyFilter(collection: Set<Note>): Set<Note> = innerApplyFilter(collection)
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             account.userProfile().pubkeyHex,
             account.settings.defaultDiscoveryFollowList.value,
             account.liveDiscoveryFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/dal/HomeConversationsFeedFilter.kt

@@ -57,7 +57,7 @@ class HomeConversationsFeedFilter(
     override fun applyFilter(collection: Set<Note>): Set<Note> = innerApplyFilter(collection)
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             userHex = account.userProfile().pubkeyHex,
             selectedListName = account.settings.defaultHomeFollowList.value,
             followLists = account.liveHomeFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/dal/HomeNewThreadFeedFilter.kt

@@ -51,7 +51,7 @@ class HomeNewThreadFeedFilter(
             account.settings.defaultHomeFollowList.value == MuteListEvent.blockListFor(account.userProfile().pubkeyHex)
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             userHex = account.userProfile().pubkeyHex,
             selectedListName = account.settings.defaultHomeFollowList.value,
             followLists = account.liveHomeFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/notifications/dal/NotificationFeedFilter.kt

@@ -57,12 +57,12 @@ class NotificationFeedFilter(
 
     override fun showHiddenKey(): Boolean =
         account.settings.defaultNotificationFollowList.value ==
-            PeopleListEvent.Companion.blockListFor(account.userProfile().pubkeyHex) ||
+            PeopleListEvent.blockListFor(account.userProfile().pubkeyHex) ||
             account.settings.defaultNotificationFollowList.value ==
-            MuteListEvent.Companion.blockListFor(account.userProfile().pubkeyHex)
+            MuteListEvent.blockListFor(account.userProfile().pubkeyHex)
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             userHex = account.userProfile().pubkeyHex,
             selectedListName = account.settings.defaultNotificationFollowList.value,
             followLists = account.liveNotificationFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/profile/datasource/UserProfileFilterAssembler.kt

@@ -41,6 +41,7 @@ import com.vitorpamplona.quartz.nip23LongContent.LongTextNoteEvent
 import com.vitorpamplona.quartz.nip35Torrents.TorrentCommentEvent
 import com.vitorpamplona.quartz.nip35Torrents.TorrentEvent
 import com.vitorpamplona.quartz.nip51Lists.BookmarkListEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import com.vitorpamplona.quartz.nip51Lists.PinListEvent
 import com.vitorpamplona.quartz.nip54Wiki.WikiNoteEvent
@@ -179,6 +180,7 @@ class UserProfileFilterAssembler(
                             listOf(
                                 BookmarkListEvent.KIND,
                                 PeopleListEvent.KIND,
+                                FollowListEvent.KIND,
                                 AppRecommendationEvent.KIND,
                             ),
                         authors = listOf(state.user.pubkeyHex),

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/profile/gallery/dal/UserProfileGalleryFeedFilter.kt

@@ -40,8 +40,8 @@ class UserProfileGalleryFeedFilter(
     override fun feedKey(): String = account.userProfile().pubkeyHex + "-" + "ProfileGallery"
 
     override fun showHiddenKey(): Boolean =
-        account.settings.defaultStoriesFollowList.value == PeopleListEvent.Companion.blockListFor(account.userProfile().pubkeyHex) ||
+        account.settings.defaultStoriesFollowList.value == PeopleListEvent.blockListFor(account.userProfile().pubkeyHex) ||
-            account.settings.defaultStoriesFollowList.value == MuteListEvent.Companion.blockListFor(account.userProfile().pubkeyHex)
+            account.settings.defaultStoriesFollowList.value == MuteListEvent.blockListFor(account.userProfile().pubkeyHex)
 
     override fun feed(): List<Note> {
         val params = buildFilterParams(account)
@@ -77,7 +77,7 @@ class UserProfileGalleryFeedFilter(
     }
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             userHex = account.userProfile().pubkeyHex,
             selectedListName = account.settings.defaultStoriesFollowList.value,
             followLists = account.liveStoriesFollowLists.value,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/threadview/ThreadFeedView.kt

@@ -118,6 +118,7 @@ import com.vitorpamplona.amethyst.ui.note.types.AudioHeader
 import com.vitorpamplona.amethyst.ui.note.types.AudioTrackHeader
 import com.vitorpamplona.amethyst.ui.note.types.BadgeDisplay
 import com.vitorpamplona.amethyst.ui.note.types.DisplayDMRelayList
+import com.vitorpamplona.amethyst.ui.note.types.DisplayFollowList
 import com.vitorpamplona.amethyst.ui.note.types.DisplayNIP65RelayList
 import com.vitorpamplona.amethyst.ui.note.types.DisplayPeopleList
 import com.vitorpamplona.amethyst.ui.note.types.DisplayRelaySet
@@ -196,6 +197,7 @@ import com.vitorpamplona.quartz.nip35Torrents.TorrentCommentEvent
 import com.vitorpamplona.quartz.nip35Torrents.TorrentEvent
 import com.vitorpamplona.quartz.nip37Drafts.DraftEvent
 import com.vitorpamplona.quartz.nip50Search.SearchRelayListEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import com.vitorpamplona.quartz.nip51Lists.PinListEvent
 import com.vitorpamplona.quartz.nip51Lists.RelaySetEvent
@@ -531,6 +533,8 @@ private fun FullBleedNoteCompose(
                     FileStorageHeaderDisplay(baseNote, roundedCorner = true, ContentScale.FillWidth, accountViewModel = accountViewModel)
                 } else if (noteEvent is PeopleListEvent) {
                     DisplayPeopleList(baseNote, backgroundColor, accountViewModel, nav)
+                } else if (noteEvent is FollowListEvent) {
+                    DisplayFollowList(baseNote, backgroundColor, accountViewModel, nav)
                 } else if (noteEvent is AudioTrackEvent) {
                     AudioTrackHeader(noteEvent, baseNote, ContentScale.FillWidth, accountViewModel, nav)
                 } else if (noteEvent is AudioHeaderEvent) {

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/video/dal/VideoFeedFilter.kt

@@ -45,8 +45,8 @@ class VideoFeedFilter(
     override fun feedKey(): String = account.userProfile().pubkeyHex + "-" + account.settings.defaultStoriesFollowList.value
 
     override fun showHiddenKey(): Boolean =
-        account.settings.defaultStoriesFollowList.value == PeopleListEvent.Companion.blockListFor(account.userProfile().pubkeyHex) ||
+        account.settings.defaultStoriesFollowList.value == PeopleListEvent.blockListFor(account.userProfile().pubkeyHex) ||
-            account.settings.defaultStoriesFollowList.value == MuteListEvent.Companion.blockListFor(account.userProfile().pubkeyHex)
+            account.settings.defaultStoriesFollowList.value == MuteListEvent.blockListFor(account.userProfile().pubkeyHex)
 
     override fun feed(): List<Note> {
         val params = buildFilterParams(account)
@@ -120,7 +120,7 @@ class VideoFeedFilter(
     }
 
     fun buildFilterParams(account: Account): FilterByListParams =
-        FilterByListParams.Companion.create(
+        FilterByListParams.create(
             userHex = account.userProfile().pubkeyHex,
             selectedListName = account.settings.defaultStoriesFollowList.value,
             followLists = account.liveStoriesFollowLists.value,

quartz/src/main/java/com/vitorpamplona/quartz/EventFactory.kt

@@ -70,10 +70,12 @@ import com.vitorpamplona.quartz.nip35Torrents.TorrentEvent
 import com.vitorpamplona.quartz.nip37Drafts.DraftEvent
 import com.vitorpamplona.quartz.nip38UserStatus.StatusEvent
 import com.vitorpamplona.quartz.nip42RelayAuth.RelayAuthEvent
+import com.vitorpamplona.quartz.nip46RemoteSigner.NostrConnectEvent
 import com.vitorpamplona.quartz.nip47WalletConnect.LnZapPaymentRequestEvent
 import com.vitorpamplona.quartz.nip47WalletConnect.LnZapPaymentResponseEvent
 import com.vitorpamplona.quartz.nip50Search.SearchRelayListEvent
 import com.vitorpamplona.quartz.nip51Lists.BookmarkListEvent
+import com.vitorpamplona.quartz.nip51Lists.FollowListEvent
 import com.vitorpamplona.quartz.nip51Lists.MuteListEvent
 import com.vitorpamplona.quartz.nip51Lists.PeopleListEvent
 import com.vitorpamplona.quartz.nip51Lists.PinListEvent
@@ -197,6 +199,7 @@ class EventFactory {
                 FileStorageEvent.KIND -> FileStorageEvent(id, pubKey, createdAt, tags, content, sig)
                 FileStorageHeaderEvent.KIND -> FileStorageHeaderEvent(id, pubKey, createdAt, tags, content, sig)
                 FhirResourceEvent.KIND -> FhirResourceEvent(id, pubKey, createdAt, tags, content, sig)
+                FollowListEvent.KIND -> FollowListEvent(id, pubKey, createdAt, tags, content, sig)
                 GenericRepostEvent.KIND -> GenericRepostEvent(id, pubKey, createdAt, tags, content, sig)
                 GiftWrapEvent.KIND -> GiftWrapEvent(id, pubKey, createdAt, tags, content, sig)
                 GitIssueEvent.KIND -> GitIssueEvent(id, pubKey, createdAt, tags, content, sig)
@@ -220,9 +223,7 @@ class EventFactory {
                 MetadataEvent.KIND -> MetadataEvent(id, pubKey, createdAt, tags, content, sig)
                 MuteListEvent.KIND -> MuteListEvent(id, pubKey, createdAt, tags, content, sig)
                 NNSEvent.KIND -> NNSEvent(id, pubKey, createdAt, tags, content, sig)
-                com.vitorpamplona.quartz.nip46RemoteSigner.NostrConnectEvent.KIND ->
+                NostrConnectEvent.KIND -> NostrConnectEvent(id, pubKey, createdAt, tags, content, sig)
-                    com.vitorpamplona.quartz.nip46RemoteSigner
-                        .NostrConnectEvent(id, pubKey, createdAt, tags, content, sig)
                 NIP90StatusEvent.KIND -> NIP90StatusEvent(id, pubKey, createdAt, tags, content, sig)
                 NIP90ContentDiscoveryRequestEvent.KIND -> NIP90ContentDiscoveryRequestEvent(id, pubKey, createdAt, tags, content, sig)
                 NIP90ContentDiscoveryResponseEvent.KIND -> NIP90ContentDiscoveryResponseEvent(id, pubKey, createdAt, tags, content, sig)

quartz/src/main/java/com/vitorpamplona/quartz/nip51Lists/FollowListEvent.kt

@@ -0,0 +1,142 @@
+/**
+ * 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.nip51Lists
+
+import androidx.compose.runtime.Immutable
+import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent
+import com.vitorpamplona.quartz.nip01Core.core.HexKey
+import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
+import com.vitorpamplona.quartz.nip01Core.tags.people.PTag
+import com.vitorpamplona.quartz.nip31Alts.AltTag
+import com.vitorpamplona.quartz.nip51Lists.tags.DescriptionTag
+import com.vitorpamplona.quartz.nip51Lists.tags.ImageTag
+import com.vitorpamplona.quartz.nip51Lists.tags.ImageTag.Companion.parse
+import com.vitorpamplona.quartz.nip51Lists.tags.NameTag
+import com.vitorpamplona.quartz.nip51Lists.tags.TitleTag
+import com.vitorpamplona.quartz.utils.TimeUtils
+
+@Immutable
+class FollowListEvent(
+    id: HexKey,
+    pubKey: HexKey,
+    createdAt: Long,
+    tags: Array<Array<String>>,
+    content: String,
+    sig: HexKey,
+) : BaseAddressableEvent(id, pubKey, createdAt, KIND, tags, content, sig) {
+    fun pubKeys() = tags.mapNotNull(PTag::parseKey)
+
+    fun pubKeyHints() = tags.mapNotNull(PTag::parseAsHint)
+
+    fun name() = tags.firstNotNullOfOrNull(NameTag::parse)
+
+    fun title() = tags.firstNotNullOfOrNull(TitleTag::parse)
+
+    fun description() = tags.firstNotNullOfOrNull(DescriptionTag::parse)
+
+    fun nameOrTitle() = name() ?: title()
+
+    fun image() = tags.firstNotNullOfOrNull(ImageTag::parse)
+
+    companion object {
+        const val KIND = 39089
+        const val ALT = "List of people to follow"
+
+        fun createListWithUser(
+            name: String,
+            pubKeyHex: String,
+            signer: NostrSigner,
+            createdAt: Long = TimeUtils.now(),
+            onReady: (FollowListEvent) -> Unit,
+        ) {
+            create(
+                content = "",
+                tags = arrayOf(arrayOf("d", name), arrayOf("p", pubKeyHex)),
+                signer = signer,
+                createdAt = createdAt,
+                onReady = onReady,
+            )
+        }
+
+        fun addUsers(
+            earlierVersion: FollowListEvent,
+            listPubKeyHex: List<String>,
+            signer: NostrSigner,
+            createdAt: Long = TimeUtils.now(),
+            onReady: (FollowListEvent) -> Unit,
+        ) {
+            create(
+                content = earlierVersion.content,
+                tags =
+                    earlierVersion.tags.plus(
+                        listPubKeyHex.map { arrayOf("p", it) },
+                    ),
+                signer = signer,
+                createdAt = createdAt,
+                onReady = onReady,
+            )
+        }
+
+        fun addUser(
+            earlierVersion: FollowListEvent,
+            pubKeyHex: String,
+            signer: NostrSigner,
+            createdAt: Long = TimeUtils.now(),
+            onReady: (FollowListEvent) -> Unit,
+        ) = addUsers(earlierVersion, listOf(pubKeyHex), signer, createdAt, onReady)
+
+        fun removeUser(
+            earlierVersion: FollowListEvent,
+            pubKeyHex: String,
+            signer: NostrSigner,
+            createdAt: Long = TimeUtils.now(),
+            onReady: (FollowListEvent) -> Unit,
+        ) {
+            create(
+                content = earlierVersion.content,
+                tags =
+                    earlierVersion.tags
+                        .filter { it.size > 1 && !(it[0] == "p" && it[1] == pubKeyHex) }
+                        .toTypedArray(),
+                signer = signer,
+                createdAt = createdAt,
+                onReady = onReady,
+            )
+        }
+
+        fun create(
+            content: String,
+            tags: Array<Array<String>>,
+            signer: NostrSigner,
+            createdAt: Long = TimeUtils.now(),
+            onReady: (FollowListEvent) -> Unit,
+        ) {
+            val newTags =
+                if (tags.any { it.size > 1 && it[0] == "alt" }) {
+                    tags
+                } else {
+                    tags + AltTag.assemble(ALT)
+                }
+
+            signer.sign(createdAt, KIND, newTags, content, onReady)
+        }
+    }
+}

quartz/src/main/java/com/vitorpamplona/quartz/nip51Lists/GeneralListEvent.kt

@@ -34,6 +34,8 @@ import com.vitorpamplona.quartz.nip01Core.tags.events.ETag
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geohashes
 import com.vitorpamplona.quartz.nip01Core.tags.hashtags.HashtagTag
 import com.vitorpamplona.quartz.nip01Core.tags.people.PTag
+import com.vitorpamplona.quartz.nip51Lists.tags.DescriptionTag
+import com.vitorpamplona.quartz.nip51Lists.tags.ImageTag
 import com.vitorpamplona.quartz.nip51Lists.tags.NameTag
 import com.vitorpamplona.quartz.nip51Lists.tags.TitleTag
 import kotlinx.collections.immutable.ImmutableSet
@@ -63,6 +65,10 @@ abstract class GeneralListEvent(
     @Deprecated("NIP-51 has deprecated Title. Use name instead", ReplaceWith("name()"))
     fun title() = tags.firstNotNullOfOrNull(TitleTag::parse)
 
+    fun description() = tags.firstNotNullOfOrNull(DescriptionTag::parse)
+
+    fun image() = tags.firstNotNullOfOrNull(ImageTag::parse)
+
     fun nameOrTitle() = name() ?: title()
 
     fun filterTagList(

quartz/src/main/java/com/vitorpamplona/quartz/nip51Lists/tags/DescriptionTag.kt

@@ -0,0 +1,36 @@
+/**
+ * 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.nip51Lists.tags
+
+class DescriptionTag {
+    companion object {
+        const val TAG_NAME = "description"
+
+        @JvmStatic
+        fun parse(tag: Array<String>): String? {
+            if (tag.size < 2 || tag[0] != TAG_NAME || tag[1].isEmpty()) return null
+            return tag[1]
+        }
+
+        @JvmStatic
+        fun assemble(name: String) = arrayOf(TAG_NAME, name)
+    }
+}

quartz/src/main/java/com/vitorpamplona/quartz/nip51Lists/tags/ImageTag.kt

@@ -0,0 +1,36 @@
+/**
+ * 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.nip51Lists.tags
+
+class ImageTag {
+    companion object {
+        const val TAG_NAME = "image"
+
+        @JvmStatic
+        fun parse(tag: Array<String>): String? {
+            if (tag.size < 2 || tag[0] != TAG_NAME || tag[1].isEmpty()) return null
+            return tag[1]
+        }
+
+        @JvmStatic
+        fun assemble(name: String) = arrayOf(TAG_NAME, name)
+    }
+}