- Upgrades NIP-72 communities to NIP-22 comments

- Adds moderation queue feed
- Adds in-app approval procedures
- Adds drafts for community posts
- Redesigns About us section of communities.

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

@@ -186,6 +186,8 @@ import com.vitorpamplona.quartz.nip68Picture.pictureIMeta
 import com.vitorpamplona.quartz.nip71Video.VideoMeta
 import com.vitorpamplona.quartz.nip71Video.VideoNormalEvent
 import com.vitorpamplona.quartz.nip71Video.VideoShortEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.nip90Dvms.NIP90ContentDiscoveryRequestEvent
 import com.vitorpamplona.quartz.nip92IMeta.IMetaTag
 import com.vitorpamplona.quartz.nip92IMeta.imetas
@@ -863,6 +865,24 @@ class Account(
 
     suspend fun unfollowGeohash(geohash: String) = sendMyPublicAndPrivateOutbox(geohashList.unfollow(geohash))
 
+    suspend fun approveCommunityPost(
+        post: Note,
+        community: AddressableNote,
+    ) {
+        val commEvent = community.event as? CommunityDefinitionEvent ?: return
+        val postHint = post.toEventHint<Event>() ?: return
+        val communityHint = community.toEventHint<CommunityDefinitionEvent>() ?: return
+
+        val template = CommunityPostApprovalEvent.build(postHint, communityHint)
+
+        val signedEvent = signer.sign(template)
+
+        val relays = outboxRelays.flow.value + commEvent.relayUrls() + community.relays + (post.author?.inboxRelays() ?: emptyList())
+
+        cache.justConsumeMyOwnEvent(signedEvent)
+        client.send(signedEvent, relays)
+    }
+
     fun sendAutomatic(events: List<Event>) = events.forEach { sendAutomatic(it) }
 
     fun sendAutomatic(event: Event?) {

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

@@ -1453,6 +1453,8 @@ object LocalCache : ILocalCache {
             // Counts the replies
             repliesTo.forEach { it.addBoost(note) }
 
+            eventsApproved.forEach { it.addBoost(note) }
+
             event.containedPost()?.let {
                 checkDeletionAndConsume(it, relay, false)
             }

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

@@ -50,6 +50,7 @@ import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
 import com.vitorpamplona.quartz.nip19Bech32.entities.NAddress
 import com.vitorpamplona.quartz.nip19Bech32.entities.NEvent
 import com.vitorpamplona.quartz.nip22Comments.CommentEvent
+import com.vitorpamplona.quartz.nip28PublicChat.base.IsInPublicChatChannel
 import com.vitorpamplona.quartz.nip28PublicChat.message.ChannelMessageEvent
 import com.vitorpamplona.quartz.nip36SensitiveContent.isSensitiveOrNSFW
 import com.vitorpamplona.quartz.nip37Drafts.DraftWrapEvent
@@ -64,6 +65,7 @@ import com.vitorpamplona.quartz.nip57Zaps.LnZapEvent
 import com.vitorpamplona.quartz.nip57Zaps.LnZapRequestEvent
 import com.vitorpamplona.quartz.nip59Giftwrap.WrappedEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.utils.TimeUtils
 import com.vitorpamplona.quartz.utils.anyAsync
 import com.vitorpamplona.quartz.utils.containsAny
@@ -201,6 +203,16 @@ open class Note(
     }
 
     fun relayHintUrl(): NormalizedRelayUrl? {
+        val noteEvent = event
+        val communityPostRelays =
+            when (noteEvent) {
+                is CommunityDefinitionEvent -> noteEvent.relayUrls().ifEmpty { null }?.toSet()
+                is IsInPublicChatChannel -> LocalCache.getAnyChannel(this)?.relays()
+                else -> null
+            }
+
+        if (!communityPostRelays.isNullOrEmpty()) return communityPostRelays.firstOrNull()
+
         val currentOutbox = author?.outboxRelays()?.toSet()
 
         return if (relays.isNotEmpty()) {

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

@@ -36,12 +36,14 @@ class ThreadAssembler {
     ): Note? {
         if (note.replyTo == null || note.replyTo?.isEmpty() == true) return note
 
-        if (note.event is RepostEvent || note.event is GenericRepostEvent) return note
+        val noteEvent = note.event
+
+        if (noteEvent is RepostEvent || noteEvent is GenericRepostEvent) return note
 
         testedNotes.add(note)
 
         val markedAsRoot =
-            note.event
+            noteEvent
                 ?.tags
                 ?.firstOrNull { it[0] == "e" && it.size > 3 && it[3] == "root" }
                 ?.getOrNull(1)
@@ -52,7 +54,10 @@ class ThreadAssembler {
             }
         }
 
-        val hasNoReplyTo = note.replyTo?.reversed()?.firstOrNull { it.replyTo?.isEmpty() == true }
+        val hasNoReplyTo =
+            note.replyTo?.lastOrNull {
+                it.replyTo?.isEmpty() == true
+            }
         if (hasNoReplyTo != null) return hasNoReplyTo
 
         // recursive

amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/event/EventObservers.kt

@@ -29,6 +29,11 @@ import com.vitorpamplona.amethyst.model.NoteState
 import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.quartz.nip01Core.core.Event
+import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
+import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.isForCommunity
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.FlowPreview
@@ -356,3 +361,49 @@ fun observeNoteEdits(
         .stateFlow
         .collectAsStateWithLifecycle()
 }
+
+@Composable
+fun observeCommunityApprovalNeedStatus(
+    note: Note,
+    community: Note,
+    accountViewModel: AccountViewModel,
+): State<Boolean?> {
+    // Subscribe in the relay for changes in this note.
+    EventFinderFilterAssemblerSubscription(note, accountViewModel)
+
+    // Subscribe in the LocalCache for changes that arrive in the device
+    val flow =
+        remember(note, community) {
+            combine(
+                community.flow().metadata.stateFlow,
+                note.flow().boosts.stateFlow,
+            ) { communityMetadata, boosts ->
+                (communityMetadata.note.event as? CommunityDefinitionEvent)?.let { communityDefEvent ->
+                    val moderators = communityDefEvent.moderatorKeys().toSet()
+
+                    if (note.author?.pubkeyHex in moderators) {
+                        false
+                    } else {
+                        val isModerator = accountViewModel.account.userProfile().pubkeyHex in moderators
+
+                        if (isModerator) {
+                            val wasAlreadyApproved =
+                                note.boosts.any {
+                                    val approvalEvent = it.event
+                                    (approvalEvent is CommunityPostApprovalEvent || approvalEvent is RepostEvent || approvalEvent is GenericRepostEvent) &&
+                                        approvalEvent.pubKey in moderators &&
+                                        approvalEvent.isForCommunity(community.idHex)
+                                }
+                            !wasAlreadyApproved
+                        } else {
+                            false
+                        }
+                    }
+                }
+            }.distinctUntilChanged()
+                .flowOn(Dispatchers.Default)
+        }
+
+    // Subscribe in the LocalCache for changes that arrive in the device
+    return flow.collectAsStateWithLifecycle(false)
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/event/watchers/FilterRepliesAndReactionsToAddresses.kt

@@ -29,6 +29,7 @@ import com.vitorpamplona.quartz.nip09Deletions.DeletionEvent
 import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
 import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
 import com.vitorpamplona.quartz.nip25Reactions.ReactionEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
 import com.vitorpamplona.quartz.nip56Reports.ReportEvent
@@ -45,6 +46,7 @@ val RepliesAndReactionsToAddressesKinds1 =
         ReportEvent.KIND,
         LnZapEvent.KIND,
         PollNoteEvent.KIND,
+        CommentEvent.KIND,
     )
 
 val PostsAndChatMessagesToAddresses =

amethyst/src/main/java/com/vitorpamplona/amethyst/service/relayClient/reqCommand/event/watchers/FilterRepliesAndReactionsToNotes.kt

@@ -31,6 +31,7 @@ import com.vitorpamplona.quartz.nip09Deletions.DeletionEvent
 import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
 import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
 import com.vitorpamplona.quartz.nip25Reactions.ReactionEvent
 import com.vitorpamplona.quartz.nip34Git.reply.GitReplyEvent
 import com.vitorpamplona.quartz.nip35Torrents.TorrentCommentEvent
@@ -51,7 +52,7 @@ val RepliesAndReactionsKinds =
         PollNoteEvent.KIND,
         OtsEvent.KIND,
         TextNoteModificationEvent.KIND,
-        GitReplyEvent.KIND,
+        CommentEvent.KIND,
     )
 
 val RepliesAndReactionsKinds2 =
@@ -60,6 +61,7 @@ val RepliesAndReactionsKinds2 =
         NIP90ContentDiscoveryResponseEvent.KIND,
         NIP90StatusEvent.KIND,
         TorrentCommentEvent.KIND,
+        GitReplyEvent.KIND,
     )
 
 fun filterRepliesAndReactionsToNotes(
@@ -108,7 +110,7 @@ fun filterRepliesAndReactionsToNotes(
                     relay = relay,
                     filter =
                         Filter(
-                            kinds = listOf(TextNoteEvent.KIND),
+                            kinds = listOf(TextNoteEvent.KIND, CommentEvent.KIND),
                             tags = mapOf("q" to sortedList),
                             since = since,
                             limit = 1000,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/SensitivityWarning.kt

@@ -56,6 +56,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.stringRes
 import com.vitorpamplona.amethyst.ui.theme.ButtonBorder
 import com.vitorpamplona.amethyst.ui.theme.ButtonPadding
+import com.vitorpamplona.amethyst.ui.theme.PaddingHorizontal12Modifier
 import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip36SensitiveContent.isSensitiveOrNSFW
 
@@ -113,7 +114,7 @@ fun SensitivityWarning(
 @Composable
 fun ContentWarningNote(onDismiss: () -> Unit) {
     Column {
-        Row(modifier = Modifier.padding(horizontal = 12.dp)) {
+        Row(modifier = PaddingHorizontal12Modifier) {
             Column(modifier = Modifier.padding(start = 10.dp)) {
                 Row(Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.Center) {
                     Box(

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/feeds/FeedLoaded.kt

@@ -29,7 +29,6 @@ import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.vitorpamplona.amethyst.ui.navigation.navs.INav
@@ -49,8 +48,6 @@ fun FeedLoaded(
 ) {
     val items by loaded.feed.collectAsStateWithLifecycle()
 
-    val scope = rememberCoroutineScope()
-
     LazyColumn(
         contentPadding = FeedPadding,
         state = listState,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/layouts/DisappearingScaffold.kt

@@ -64,9 +64,10 @@ fun DisappearingScaffold(
     bottomBar: (@Composable () -> Unit)? = null,
     floatingButton: (@Composable () -> Unit)? = null,
     accountViewModel: AccountViewModel,
+    isActive: () -> Boolean = { true },
     mainContent: @Composable (padding: PaddingValues) -> Unit,
 ) {
-    val shouldShow = remember { mutableStateOf(true) }
+    val shouldShow = remember { mutableStateOf(isActive()) }
 
     val modifier =
         if (accountViewModel.settings.automaticallyHideNavigationBars == BooleanType.ALWAYS) {
@@ -80,6 +81,13 @@ fun DisappearingScaffold(
                             available: Offset,
                             source: NestedScrollSource,
                         ): Offset {
+                            if (!isActive()) {
+                                if (!shouldShow.value) {
+                                    shouldShow.value = true
+                                }
+                                return Offset.Zero
+                            }
+
                             val newOffset = bottomBarOffsetHeightPx.floatValue + available.y
 
                             if (accountViewModel.settings.automaticallyHideNavigationBars == BooleanType.ALWAYS) {

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

@@ -28,9 +28,11 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.defaultMinSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
@@ -56,6 +58,7 @@ import com.vitorpamplona.amethyst.model.FeatureSetType
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.nip28PublicChats.PublicChatChannel
 import com.vitorpamplona.amethyst.service.relayClient.reqCommand.channel.observeChannelPicture
+import com.vitorpamplona.amethyst.service.relayClient.reqCommand.event.observeCommunityApprovalNeedStatus
 import com.vitorpamplona.amethyst.service.relayClient.reqCommand.event.observeNoteEdits
 import com.vitorpamplona.amethyst.service.relayClient.reqCommand.event.observeNoteEvent
 import com.vitorpamplona.amethyst.ui.components.GenericLoadable
@@ -139,7 +142,9 @@ import com.vitorpamplona.amethyst.ui.theme.HalfPadding
 import com.vitorpamplona.amethyst.ui.theme.HalfStartPadding
 import com.vitorpamplona.amethyst.ui.theme.RowColSpacing10dp
 import com.vitorpamplona.amethyst.ui.theme.RowColSpacing5dp
+import com.vitorpamplona.amethyst.ui.theme.Size10dp
 import com.vitorpamplona.amethyst.ui.theme.Size25dp
+import com.vitorpamplona.amethyst.ui.theme.Size30dp
 import com.vitorpamplona.amethyst.ui.theme.Size34dp
 import com.vitorpamplona.amethyst.ui.theme.Size55Modifier
 import com.vitorpamplona.amethyst.ui.theme.Size55dp
@@ -164,7 +169,6 @@ import com.vitorpamplona.quartz.experimental.medical.FhirResourceEvent
 import com.vitorpamplona.quartz.experimental.nip95.header.FileStorageHeaderEvent
 import com.vitorpamplona.quartz.experimental.publicMessages.PublicMessageEvent
 import com.vitorpamplona.quartz.experimental.zapPolls.PollNoteEvent
-import com.vitorpamplona.quartz.nip01Core.tags.addressables.isTaggedAddressableKind
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geoHashOrScope
 import com.vitorpamplona.quartz.nip04Dm.messages.PrivateDmEvent
 import com.vitorpamplona.quartz.nip10Notes.BaseThreadedEvent
@@ -212,7 +216,9 @@ import com.vitorpamplona.quartz.nip71Video.VideoNormalEvent
 import com.vitorpamplona.quartz.nip71Video.VideoShortEvent
 import com.vitorpamplona.quartz.nip71Video.VideoVerticalEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.communityAddress
 import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.isACommunityPost
 import com.vitorpamplona.quartz.nip84Highlights.HighlightEvent
 import com.vitorpamplona.quartz.nip89AppHandlers.definition.AppDefinitionEvent
 import com.vitorpamplona.quartz.nip90Dvms.NIP90ContentDiscoveryResponseEvent
@@ -552,6 +558,8 @@ fun InnerNoteWithReactions(
                 accountViewModel = accountViewModel,
                 nav = nav,
             )
+
+            RenderApprovalIfNeeded(baseNote, accountViewModel, nav)
         }
     }
 
@@ -577,6 +585,47 @@ fun InnerNoteWithReactions(
     }
 }
 
+@Composable
+private fun RenderApprovalIfNeeded(
+    baseNote: Note,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    if (baseNote.isNewThread()) {
+        val communityAddress =
+            remember(baseNote) {
+                baseNote.event?.communityAddress()
+            }
+        communityAddress?.let {
+            LoadAddressableNote(it, accountViewModel) { community ->
+                if (community != null) {
+                    val showApproveButton by observeCommunityApprovalNeedStatus(baseNote, community, accountViewModel)
+                    if (showApproveButton == true) {
+                        RenderApproveButton(baseNote, community, accountViewModel)
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun RenderApproveButton(
+    post: Note,
+    community: AddressableNote,
+    accountViewModel: AccountViewModel,
+) {
+    OutlinedButton(
+        modifier = Modifier.fillMaxWidth().defaultMinSize(minWidth = Size10dp, minHeight = Size30dp),
+        contentPadding = PaddingValues(0.dp),
+        onClick = {
+            accountViewModel.approveCommunityPost(post, community)
+        },
+    ) {
+        Text("Approve")
+    }
+}
+
 @Composable
 fun NoteBody(
     baseNote: Note,
@@ -1090,14 +1139,7 @@ fun FirstUserInfoRow(
 ) {
     Row(verticalAlignment = CenterVertically, modifier = UserNameRowHeight) {
         val isRepost = baseNote.event is RepostEvent || baseNote.event is GenericRepostEvent
-
-        val isCommunityPost by
-            remember(baseNote) {
-                derivedStateOf {
-                    baseNote.event?.isTaggedAddressableKind(CommunityDefinitionEvent.KIND) == true
-                }
-            }
-
+        val isDraft = baseNote.isDraft()
         val textColor = if (isRepost) MaterialTheme.colorScheme.grayText else Color.Unspecified
 
         if (showAuthorPicture) {
@@ -1108,10 +1150,28 @@ fun FirstUserInfoRow(
             NoteUsernameDisplay(baseNote, Modifier.weight(1f), textColor = textColor, accountViewModel = accountViewModel)
         }
 
-        if (isCommunityPost) {
-            DisplayFollowingCommunityInPost(baseNote, accountViewModel, nav)
+        if (isDraft) {
+            ObserveDraftEvent(baseNote, accountViewModel) { draftNote ->
+                val isCommunityPost by remember(draftNote) {
+                    derivedStateOf { draftNote.event?.isACommunityPost() == true }
+                }
+
+                if (isCommunityPost) {
+                    DisplayFollowingCommunityInPost(draftNote, accountViewModel, nav)
+                } else {
+                    DisplayFollowingHashtagsInPost(draftNote, accountViewModel, nav)
+                }
+            }
         } else {
-            DisplayFollowingHashtagsInPost(baseNote, accountViewModel, nav)
+            val isCommunityPost by remember(baseNote) {
+                derivedStateOf { baseNote.event?.isACommunityPost() == true }
+            }
+
+            if (isCommunityPost) {
+                DisplayFollowingCommunityInPost(baseNote, accountViewModel, nav)
+            } else {
+                DisplayFollowingHashtagsInPost(baseNote, accountViewModel, nav)
+            }
         }
 
         if (isRepost) {
@@ -1120,7 +1180,7 @@ fun FirstUserInfoRow(
 
         CheckAndDisplayEditStatus(editState)
 
-        if (baseNote.isDraft()) {
+        if (isDraft) {
             DisplayDraft()
         }
 
@@ -1192,7 +1252,7 @@ fun observeEdits(
 }
 
 @Composable
-private fun BadgeBox(
+fun BadgeBox(
     baseNote: Note,
     accountViewModel: AccountViewModel,
     nav: INav,
@@ -1207,7 +1267,7 @@ private fun BadgeBox(
 }
 
 @Composable
-private fun RenderAuthorImages(
+fun RenderAuthorImages(
     baseNote: Note,
     nav: INav,
     accountViewModel: AccountViewModel,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/elements/DisplayCommunity.kt

@@ -34,9 +34,8 @@ import com.vitorpamplona.amethyst.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.ui.navigation.routes.Route
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.theme.HalfStartPadding
-import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
-import com.vitorpamplona.quartz.nip01Core.tags.addressables.getTagOfAddressableKind
-import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip01Core.tags.addressables.Address
+import com.vitorpamplona.quartz.nip72ModCommunities.communityAddress
 
 @Composable
 fun DisplayFollowingCommunityInPost(
@@ -55,11 +54,15 @@ private fun DisplayCommunity(
     nav: INav,
 ) {
     val communityTag =
-        remember(note) { note.event?.getTagOfAddressableKind(CommunityDefinitionEvent.KIND) } ?: return
+        remember(note) { note.event?.communityAddress() } ?: return
 
     val displayTag =
         remember(note) {
-            buildLinkString(getCommunityShortName(communityTag)) { nav.nav(Route.Community(communityTag.kind, communityTag.pubKeyHex, communityTag.dTag)) }
+            buildLinkString(
+                getCommunityShortName(communityTag),
+            ) {
+                nav.nav(Route.Community(communityTag.kind, communityTag.pubKeyHex, communityTag.dTag))
+            }
         }
 
     Text(
@@ -75,12 +78,12 @@ private fun DisplayCommunity(
     )
 }
 
-private fun getCommunityShortName(communityTag: ATag): String {
+fun getCommunityShortName(communityAddress: Address): String {
     val name =
-        if (communityTag.dTag.length > 10) {
-            communityTag.dTag.take(10) + "..."
+        if (communityAddress.dTag.length > 10) {
+            communityAddress.dTag.take(10) + "..."
         } else {
-            communityTag.dTag.take(10)
+            communityAddress.dTag.take(10)
         }
 
     return "/n/$name"

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/nip22Comments/CommentPostViewModel.kt

@@ -86,6 +86,7 @@ import com.vitorpamplona.quartz.nip37Drafts.DraftWrapEvent
 import com.vitorpamplona.quartz.nip57Zaps.splits.zapSplits
 import com.vitorpamplona.quartz.nip57Zaps.zapraiser.zapraiser
 import com.vitorpamplona.quartz.nip57Zaps.zapraiser.zapraiserAmount
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.nip73ExternalIds.ExternalId
 import com.vitorpamplona.quartz.nip73ExternalIds.scope
 import com.vitorpamplona.quartz.nip92IMeta.IMetaTagBuilder
@@ -252,8 +253,7 @@ open class CommentPostViewModel :
     }
 
     private fun loadFromDraft(draftEvent: CommentEvent) {
-        val scope = draftEvent.scope() ?: return
-        this.externalIdentity = scope
+        this.externalIdentity = draftEvent.scope()
 
         canAddInvoice = accountViewModel.userProfile().info?.lnAddress() != null
         canAddZapRaiser = accountViewModel.userProfile().info?.lnAddress() != null
@@ -278,8 +278,14 @@ open class CommentPostViewModel :
             zapRaiserAmount.value = zapraiser
         }
 
-        draftEvent.replyingTo()?.let {
-            replyingTo = LocalCache.getOrCreateNote(it)
+        val replyAddress = draftEvent.replyAddress()
+
+        if (replyAddress.isNotEmpty()) {
+            replyingTo = LocalCache.getOrCreateAddressableNote(replyAddress.first())
+        } else {
+            draftEvent.replyingTo()?.let {
+                replyingTo = LocalCache.getOrCreateNote(it)
+            }
         }
 
         wantsToAddGeoHash = draftEvent.hasGeohashes()
@@ -356,6 +362,7 @@ open class CommentPostViewModel :
         val contentWarningReason = if (wantsToMarkAsSensitive) "" else null
 
         val replyingTo = replyingTo
+        val replyingToEvent = replyingTo?.event
 
         val template =
             if (replyingTo != null) {
@@ -365,7 +372,22 @@ open class CommentPostViewModel :
                     msg = tagger.message,
                     replyingTo = eventHint,
                 ) {
-                    tagger.pTags?.let { pTagList -> notify(pTagList.map { it.toPTag() }) }
+                    val notifyPTags = tagger.pTags?.let { pTagList -> pTagList.map { it.toPTag() } } ?: emptyList()
+
+                    val extraNotificationAuthors =
+                        if (replyingToEvent is CommunityDefinitionEvent) {
+                            replyingToEvent.moderatorKeys().mapNotNull {
+                                if (it != replyingToEvent.pubKey) {
+                                    accountViewModel.checkGetOrCreateUser(it)?.toPTag()
+                                } else {
+                                    null
+                                }
+                            }
+                        } else {
+                            emptyList()
+                        }
+
+                    notify((notifyPTags + extraNotificationAuthors).distinctBy { it.pubKey })
 
                     hashtags(findHashtags(tagger.message))
                     references(findURLs(tagger.message))

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

@@ -20,16 +20,27 @@
  */
 package com.vitorpamplona.amethyst.ui.note.types
 
+import android.R.attr.onClick
+import android.content.Intent
+import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Share
 import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.FilledTonalButton
+import androidx.compose.material3.FilledTonalIconButton
+import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -37,14 +48,18 @@ import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
 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.layout.ContentScale
+import androidx.compose.ui.platform.LocalContext
+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 androidx.compose.ui.unit.sp
+import androidx.core.content.ContextCompat
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.AddressableNote
@@ -52,8 +67,11 @@ import com.vitorpamplona.amethyst.model.FeatureSetType
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.service.relayClient.reqCommand.event.observeNoteEvent
+import com.vitorpamplona.amethyst.ui.components.MyAsyncImage
+import com.vitorpamplona.amethyst.ui.components.RichTextViewer
 import com.vitorpamplona.amethyst.ui.components.RobohashFallbackAsyncImage
 import com.vitorpamplona.amethyst.ui.components.TranslatableRichTextViewer
+import com.vitorpamplona.amethyst.ui.navigation.navs.EmptyNav.nav
 import com.vitorpamplona.amethyst.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.ui.navigation.routes.routeFor
 import com.vitorpamplona.amethyst.ui.note.ClickableUserPicture
@@ -62,9 +80,10 @@ import com.vitorpamplona.amethyst.ui.note.NoteAuthorPicture
 import com.vitorpamplona.amethyst.ui.note.NoteUsernameDisplay
 import com.vitorpamplona.amethyst.ui.note.UsernameDisplay
 import com.vitorpamplona.amethyst.ui.note.ZapReaction
+import com.vitorpamplona.amethyst.ui.note.elements.DefaultImageHeader
+import com.vitorpamplona.amethyst.ui.note.elements.DefaultImageHeaderBackground
 import com.vitorpamplona.amethyst.ui.note.elements.DisplayUncitedHashtags
-import com.vitorpamplona.amethyst.ui.note.elements.MoreOptionsButton
-import com.vitorpamplona.amethyst.ui.note.elements.NormalTimeAgo
+import com.vitorpamplona.amethyst.ui.note.externalLinkForNote
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.equalImmutableLists
 import com.vitorpamplona.amethyst.ui.stringRes
@@ -74,6 +93,7 @@ import com.vitorpamplona.amethyst.ui.theme.DoubleHorzSpacer
 import com.vitorpamplona.amethyst.ui.theme.HeaderPictureModifier
 import com.vitorpamplona.amethyst.ui.theme.RowColSpacing
 import com.vitorpamplona.amethyst.ui.theme.Size10dp
+import com.vitorpamplona.amethyst.ui.theme.Size18Modifier
 import com.vitorpamplona.amethyst.ui.theme.Size25dp
 import com.vitorpamplona.amethyst.ui.theme.Size35dp
 import com.vitorpamplona.amethyst.ui.theme.Size5dp
@@ -81,12 +101,12 @@ import com.vitorpamplona.amethyst.ui.theme.StdHorzSpacer
 import com.vitorpamplona.amethyst.ui.theme.innerPostModifier
 import com.vitorpamplona.quartz.nip01Core.tags.hashtags.hasHashtags
 import com.vitorpamplona.quartz.nip02FollowList.EmptyTagList
-import com.vitorpamplona.quartz.nip14Subject.subject
+import com.vitorpamplona.quartz.nip02FollowList.toImmutableListOfLists
 import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.definition.tags.ModeratorTag
 import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.persistentListOf
-import java.util.Locale
+import kotlinx.collections.immutable.toImmutableList
 
 @Composable
 fun RenderCommunity(
@@ -110,6 +130,16 @@ fun RenderCommunity(
     }
 }
 
+@Composable
+fun Title(title: String) {
+    Text(
+        text = title,
+        fontSize = 16.sp,
+        fontWeight = FontWeight.W600,
+        textAlign = TextAlign.Start,
+    )
+}
+
 @Composable
 fun LongCommunityHeader(
     baseNote: AddressableNote,
@@ -118,142 +148,169 @@ fun LongCommunityHeader(
     nav: INav,
 ) {
     val noteEvent by observeNoteEvent<CommunityDefinitionEvent>(baseNote, accountViewModel)
+    val callbackUri = baseNote.toNostrUri()
 
-    Row(
-        lineModifier,
-    ) {
-        val rulesLabel = stringRes(id = R.string.rules)
-        val summary =
-            remember(noteEvent) {
-                val subject = noteEvent?.subject()?.ifEmpty { null }
-                val body = noteEvent?.description()?.ifBlank { null }
-                val rules = noteEvent?.rules()?.ifBlank { null }
+    val defaultBackground = MaterialTheme.colorScheme.background
+    val background = remember { mutableStateOf(defaultBackground) }
 
-                if (!subject.isNullOrBlank() && body?.split("\n")?.get(0)?.contains(subject) == false) {
-                    if (rules == null) {
-                        "### $subject\n$body"
-                    } else {
-                        "### $subject\n$body\n\n### $rulesLabel\n\n$rules"
-                    }
-                } else {
-                    if (rules == null) {
-                        body
-                    } else {
-                        "$body\n\n$rulesLabel\n$rules"
-                    }
+    val description = noteEvent?.description()?.ifBlank { null }
+    val guidelines = noteEvent?.rules()?.ifBlank { null }
+    val image = noteEvent?.image()?.imageUrl
+    val tagList = noteEvent?.tags?.toImmutableListOfLists() ?: EmptyTagList
+
+    Column(Modifier.verticalScroll(rememberScrollState())) {
+        Box(contentAlignment = Alignment.TopEnd) {
+            image?.let {
+                MyAsyncImage(
+                    imageUrl = it,
+                    contentDescription =
+                        stringRes(
+                            R.string.preview_card_image_for,
+                            it,
+                        ),
+                    contentScale = ContentScale.FillWidth,
+                    mainImageModifier = Modifier,
+                    loadedImageModifier = Modifier.fillMaxWidth(),
+                    accountViewModel = accountViewModel,
+                    onLoadingBackground = { DefaultImageHeaderBackground(baseNote, accountViewModel) },
+                    onError = { DefaultImageHeader(baseNote, accountViewModel) },
+                )
+            } ?: run {
+                DefaultImageHeader(baseNote, accountViewModel)
+            }
+            Box(
+                modifier = Modifier.padding(5.dp),
+            ) {
+                LongCommunityActionOptions(baseNote, accountViewModel, nav)
+            }
+        }
+
+        Column(lineModifier) {
+            Spacer(modifier = Modifier.height(8.dp))
+            Text(
+                text = noteEvent?.name() ?: baseNote.dTag(),
+                fontSize = 20.sp,
+                fontWeight = FontWeight.W600,
+                textAlign = TextAlign.Center,
+                modifier = Modifier.fillMaxWidth(),
+            )
+
+            Spacer(modifier = Modifier.height(8.dp))
+            Spacer(modifier = Modifier.height(8.dp))
+            Title(title = stringRes(R.string.about_us))
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Column(Modifier.padding(16.dp, 0.dp, 16.dp, 0.dp)) {
+                TranslatableRichTextViewer(
+                    content = description ?: stringRes(id = R.string.community_no_descriptor),
+                    id = baseNote.idHex + "description",
+                    accountViewModel = accountViewModel,
+                ) {
+                    RichTextViewer(
+                        it,
+                        modifier = Modifier.fillMaxWidth(),
+                        canPreview = false,
+                        quotesLeft = 1,
+                        tags = tagList,
+                        backgroundColor = background,
+                        callbackUri = callbackUri,
+                        accountViewModel = accountViewModel,
+                        nav = nav,
+                    )
                 }
             }
 
-        Column(
-            Modifier.weight(1f),
-        ) {
-            Row(verticalAlignment = Alignment.CenterVertically) {
-                val defaultBackground = MaterialTheme.colorScheme.background
-                val background = remember { mutableStateOf(defaultBackground) }
+            guidelines?.let {
+                Spacer(modifier = Modifier.height(24.dp))
+                Title(title = stringRes(R.string.guidelines))
+                Spacer(modifier = Modifier.height(16.dp))
 
-                TranslatableRichTextViewer(
-                    content = summary ?: stringRes(id = R.string.community_no_descriptor),
-                    canPreview = false,
-                    quotesLeft = 1,
-                    tags = EmptyTagList,
-                    backgroundColor = background,
-                    id = baseNote.idHex,
-                    accountViewModel = accountViewModel,
-                    nav = nav,
-                )
+                Column(Modifier.padding(16.dp, 0.dp, 16.dp, 0.dp)) {
+                    TranslatableRichTextViewer(
+                        content = guidelines,
+                        id = baseNote.idHex + "guidelines",
+                        accountViewModel = accountViewModel,
+                    ) {
+                        RichTextViewer(
+                            it,
+                            modifier = Modifier.fillMaxWidth(),
+                            canPreview = false,
+                            quotesLeft = 1,
+                            tags = tagList,
+                            backgroundColor = background,
+                            callbackUri = callbackUri,
+                            accountViewModel = accountViewModel,
+                            nav = nav,
+                        )
+                    }
+                }
             }
 
             noteEvent?.let {
                 if (it.hasHashtags()) {
                     DisplayUncitedHashtags(
                         event = it,
-                        content = summary ?: "",
+                        content = description ?: "",
                         accountViewModel = accountViewModel,
                         nav = nav,
                     )
                 }
             }
-        }
 
-        Column {
-            Row {
+            Spacer(modifier = Modifier.height(24.dp))
+            Title(title = stringRes(R.string.owner))
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Row(
+                Modifier.fillMaxWidth().padding(horizontal = 16.dp),
+                verticalAlignment = Alignment.CenterVertically,
+            ) {
+                NoteAuthorPicture(baseNote, Size25dp, accountViewModel = accountViewModel, nav = nav)
                 Spacer(DoubleHorzSpacer)
-                LongCommunityActionOptions(baseNote, accountViewModel, nav)
+                NoteUsernameDisplay(baseNote, Modifier.weight(1f), accountViewModel = accountViewModel)
             }
-        }
-    }
 
-    Row(
-        lineModifier,
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        Text(
-            text = stringRes(id = R.string.owner),
-            maxLines = 1,
-            overflow = TextOverflow.Ellipsis,
-            modifier = Modifier.width(75.dp),
-        )
-        Spacer(DoubleHorzSpacer)
-        NoteAuthorPicture(baseNote, Size25dp, accountViewModel = accountViewModel, nav = nav)
-        Spacer(DoubleHorzSpacer)
-        NoteUsernameDisplay(baseNote, Modifier.weight(1f), accountViewModel = accountViewModel)
-    }
+            var participantUsers by
+                remember(baseNote) {
+                    mutableStateOf<ImmutableList<Pair<ModeratorTag, User>>>(
+                        persistentListOf(),
+                    )
+                }
 
-    var participantUsers by
-        remember(baseNote) {
-            mutableStateOf<ImmutableList<Pair<ModeratorTag, User>>>(
-                persistentListOf(),
-            )
-        }
+            LaunchedEffect(key1 = noteEvent) {
+                val participants = noteEvent?.moderators()
 
-    LaunchedEffect(key1 = noteEvent) {
-        val participants = noteEvent?.moderators()
-
-        if (participants != null) {
-            accountViewModel.loadParticipants(participants) { newParticipantUsers ->
-                if (!equalImmutableLists(newParticipantUsers, participantUsers)) {
-                    participantUsers = newParticipantUsers
+                if (participants != null) {
+                    accountViewModel.loadParticipants(participants) { newParticipantUsers ->
+                        val noOwner = newParticipantUsers.filter { it.second != baseNote.author }.toImmutableList()
+                        if (!equalImmutableLists(noOwner, participantUsers)) {
+                            participantUsers = noOwner
+                        }
+                    }
                 }
             }
-        }
-    }
 
-    participantUsers.forEach {
-        Row(
-            lineModifier.clickable { nav.nav(routeFor(it.second)) },
-            verticalAlignment = Alignment.CenterVertically,
-        ) {
-            it.first.role?.let { it1 ->
-                Text(
-                    text =
-                        it1.replaceFirstChar {
-                            if (it.isLowerCase()) it.titlecase(Locale.getDefault()) else it.toString()
-                        },
-                    maxLines = 1,
-                    overflow = TextOverflow.Ellipsis,
-                    modifier = Modifier.width(75.dp),
-                )
+            if (participantUsers.isNotEmpty()) {
+                Spacer(modifier = Modifier.height(24.dp))
+                Title(title = stringRes(R.string.moderators))
+                Spacer(modifier = Modifier.height(16.dp))
+
+                participantUsers.forEach {
+                    Column(Modifier.padding(vertical = 5.dp).clickable { nav.nav(routeFor(it.second)) }) {
+                        Row(
+                            Modifier.fillMaxWidth().padding(horizontal = 16.dp),
+                            verticalAlignment = Alignment.CenterVertically,
+                        ) {
+                            ClickableUserPicture(it.second, Size25dp, accountViewModel)
+                            Spacer(DoubleHorzSpacer)
+                            UsernameDisplay(it.second, Modifier.weight(1f), accountViewModel = accountViewModel)
+                        }
+                    }
+                }
             }
-            Spacer(DoubleHorzSpacer)
-            ClickableUserPicture(it.second, Size25dp, accountViewModel)
-            Spacer(DoubleHorzSpacer)
-            UsernameDisplay(it.second, Modifier.weight(1f), accountViewModel = accountViewModel)
-        }
-    }
 
-    Row(
-        lineModifier,
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        Text(
-            text = stringRes(id = R.string.created_at),
-            maxLines = 1,
-            overflow = TextOverflow.Ellipsis,
-            modifier = Modifier.width(75.dp),
-        )
-        Spacer(DoubleHorzSpacer)
-        NormalTimeAgo(baseNote = baseNote, Modifier.weight(1f))
-        MoreOptionsButton(baseNote, null, accountViewModel, nav)
+            Spacer(modifier = Modifier.height(15.dp))
+        }
     }
 }
 
@@ -308,7 +365,47 @@ fun ShortCommunityHeader(
 }
 
 @Composable
-private fun ShortCommunityActionOptions(
+fun ShortCommunityHeaderNoActions(
+    baseNote: AddressableNote,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    val noteEvent by observeNoteEvent<CommunityDefinitionEvent>(baseNote, accountViewModel)
+
+    Row(verticalAlignment = Alignment.CenterVertically) {
+        noteEvent?.image()?.let {
+            RobohashFallbackAsyncImage(
+                robot = baseNote.idHex,
+                model = it.imageUrl,
+                contentDescription = stringRes(R.string.profile_image),
+                contentScale = ContentScale.Crop,
+                modifier = HeaderPictureModifier,
+                loadProfilePicture = accountViewModel.settings.showProfilePictures.value,
+                loadRobohash = accountViewModel.settings.featureSet != FeatureSetType.PERFORMANCE,
+            )
+        }
+
+        Column(
+            modifier =
+                Modifier
+                    .padding(start = 10.dp)
+                    .height(Size35dp)
+                    .weight(1f),
+            verticalArrangement = Arrangement.Center,
+        ) {
+            Row(verticalAlignment = Alignment.CenterVertically) {
+                Text(
+                    text = noteEvent?.name() ?: baseNote.dTag(),
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun ShortCommunityActionOptions(
     note: AddressableNote,
     accountViewModel: AccountViewModel,
     nav: INav,
@@ -346,9 +443,12 @@ private fun LongCommunityActionOptions(
     accountViewModel: AccountViewModel,
     nav: INav,
 ) {
-    WatchAddressableNoteFollows(note, accountViewModel) { isFollowing ->
-        if (isFollowing) {
-            LeaveCommunityButton(accountViewModel, note, nav)
+    Row {
+        ShareCommunityButton(accountViewModel, note, nav)
+        WatchAddressableNoteFollows(note, accountViewModel) { isFollowing ->
+            if (isFollowing) {
+                LeaveCommunityButton(accountViewModel, note, nav)
+            }
         }
     }
 }
@@ -388,18 +488,48 @@ fun LeaveCommunityButton(
     note: AddressableNote,
     nav: INav,
 ) {
-    val scope = rememberCoroutineScope()
-
-    Button(
+    FilledTonalButton(
         modifier = Modifier.padding(horizontal = 3.dp),
         onClick = { accountViewModel.unfollow(note) },
-        shape = ButtonBorder,
-        colors =
-            ButtonDefaults.buttonColors(
-                containerColor = MaterialTheme.colorScheme.primary,
-            ),
         contentPadding = ButtonPadding,
     ) {
-        Text(text = stringRes(R.string.leave), color = Color.White)
+        Text(text = stringRes(R.string.leave))
+    }
+}
+
+@Composable
+fun ShareCommunityButton(
+    accountViewModel: AccountViewModel,
+    note: AddressableNote,
+    nav: INav,
+) {
+    val actContext = LocalContext.current
+
+    FilledTonalIconButton(
+        onClick = {
+            val sendIntent =
+                Intent().apply {
+                    action = Intent.ACTION_SEND
+                    type = "text/plain"
+                    putExtra(
+                        Intent.EXTRA_TEXT,
+                        externalLinkForNote(note),
+                    )
+                    putExtra(
+                        Intent.EXTRA_TITLE,
+                        stringRes(actContext, R.string.quick_action_share_browser_link),
+                    )
+                }
+
+            val shareIntent =
+                Intent.createChooser(sendIntent, stringRes(actContext, R.string.quick_action_share))
+            ContextCompat.startActivity(actContext, shareIntent, null)
+        },
+    ) {
+        Icon(
+            imageVector = Icons.Default.Share,
+            modifier = Size18Modifier,
+            contentDescription = stringRes(R.string.quick_action_share),
+        )
     }
 }

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

@@ -33,6 +33,7 @@ import com.vitorpamplona.amethyst.ui.actions.CrossfadeIfEnabled
 import com.vitorpamplona.amethyst.ui.feeds.FeedContentState
 import com.vitorpamplona.amethyst.ui.feeds.FeedEmpty
 import com.vitorpamplona.amethyst.ui.feeds.FeedError
+import com.vitorpamplona.amethyst.ui.feeds.FeedLoaded
 import com.vitorpamplona.amethyst.ui.feeds.FeedState
 import com.vitorpamplona.amethyst.ui.feeds.LoadingFeed
 import com.vitorpamplona.amethyst.ui.feeds.RefresheableBox
@@ -102,8 +103,7 @@ fun RenderFeedState(
     nav: INav,
     routeForLastRead: String?,
     onLoaded: @Composable (FeedState.Loaded) -> Unit = {
-        com.vitorpamplona.amethyst.ui.feeds
-            .FeedLoaded(it, listState, routeForLastRead, accountViewModel, nav)
+        FeedLoaded(it, listState, routeForLastRead, accountViewModel, nav)
     },
     onEmpty: @Composable () -> Unit = { FeedEmpty { viewModel.invalidateData() } },
     onError: @Composable (String) -> Unit = { FeedError(it) { viewModel.invalidateData() } },

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

@@ -44,6 +44,7 @@ import com.vitorpamplona.quartz.nip09Deletions.DeletionEvent
 import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
 import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
 import com.vitorpamplona.quartz.nip23LongContent.LongTextNoteEvent
 import com.vitorpamplona.quartz.nip51Lists.PinListEvent
 import com.vitorpamplona.quartz.nip51Lists.followList.FollowListEvent
@@ -123,36 +124,40 @@ class FollowListState(
 
     val livePeopleListsFlow = MutableStateFlow(emptyList<FeedDefinition>())
 
+    fun hasItemInNoteList(notes: Set<Note>): Boolean =
+        notes.any { it ->
+            val noteEvent = it.event
+
+            noteEvent?.pubKey == account.userProfile().pubkeyHex &&
+                (
+                    (
+                        noteEvent is PeopleListEvent ||
+                            noteEvent is FollowListEvent ||
+                            noteEvent is MuteListEvent ||
+                            noteEvent is ContactListEvent
+                    ) ||
+                        (
+                            noteEvent is DeletionEvent &&
+                                (
+                                    noteEvent.deleteEventIds().any { LocalCache.getNoteIfExists(it)?.event is PeopleListEvent } ||
+                                        noteEvent.deleteAddresses().any { it.kind == PeopleListEvent.KIND }
+                                )
+                        )
+                )
+        }
+
+    fun deleteFromFeed(deletedNotes: Set<Note>) {
+        checkNotInMainThread()
+
+        if (hasItemInNoteList(deletedNotes)) {
+            livePeopleListsFlow.tryEmit(getPeopleLists())
+        }
+    }
+
     fun updateFeedWith(newNotes: Set<Note>) {
         checkNotInMainThread()
 
-        val hasNewList =
-            newNotes.any { it ->
-                val noteEvent = it.event
-
-                noteEvent?.pubKey == account.userProfile().pubkeyHex &&
-                    (
-                        (
-                            noteEvent is PeopleListEvent ||
-                                noteEvent is FollowListEvent ||
-                                noteEvent is MuteListEvent ||
-                                noteEvent is ContactListEvent
-                        ) ||
-                            (
-                                noteEvent is DeletionEvent &&
-                                    (
-                                        noteEvent.deleteEventIds().any {
-                                            LocalCache.getNoteIfExists(it)?.event is PeopleListEvent
-                                        } ||
-                                            noteEvent.deleteAddresses().any {
-                                                it.kind == PeopleListEvent.KIND
-                                            }
-                                    )
-                            )
-                    )
-            }
-
-        if (hasNewList) {
+        if (hasItemInNoteList(newNotes)) {
             livePeopleListsFlow.tryEmit(getPeopleLists())
         }
     }
@@ -163,7 +168,7 @@ class FollowListState(
             checkNotInMainThread()
 
             val communities =
-                communityList.mapNotNull {
+                communityList.map {
                     LocalCache.getOrCreateAddressableNote(it.address).let { communityNote ->
                         TagFeedDefinition(
                             "Community/${communityNote.idHex}",
@@ -377,6 +382,7 @@ val DEFAULT_FEED_KINDS =
 val DEFAULT_COMMUNITY_FEEDS =
     listOf(
         TextNoteEvent.KIND,
+        CommentEvent.KIND,
         LongTextNoteEvent.KIND,
         ClassifiedsEvent.KIND,
         HighlightEvent.KIND,

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

@@ -774,6 +774,11 @@ class AccountViewModel(
         }
     }
 
+    fun approveCommunityPost(
+        post: Note,
+        community: AddressableNote,
+    ) = runIOCatching { account.approveCommunityPost(post, community) }
+
     fun follow(community: AddressableNote) = runIOCatching { account.follow(community) }
 
     fun follow(channel: PublicChatChannel) = runIOCatching { account.follow(channel) }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/communities/CommunityScreen.kt

@@ -20,29 +20,56 @@
  */
 package com.vitorpamplona.amethyst.ui.screen.loggedIn.communities
 
+import android.R.attr.onClick
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.consumeWindowInsets
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.verticalScroll
+import androidx.compose.foundation.pager.HorizontalPager
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextFieldDefaults.contentPadding
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Tab
+import androidx.compose.material3.TabRow
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
+import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.AddressableNote
 import com.vitorpamplona.amethyst.ui.feeds.WatchLifecycleAndUpdateModel
+import com.vitorpamplona.amethyst.ui.feeds.rememberForeverPagerState
 import com.vitorpamplona.amethyst.ui.layouts.DisappearingScaffold
 import com.vitorpamplona.amethyst.ui.navigation.navs.INav
-import com.vitorpamplona.amethyst.ui.navigation.topbars.TopBarExtensibleWithBackButton
+import com.vitorpamplona.amethyst.ui.navigation.topbars.ShorterTopAppBar
+import com.vitorpamplona.amethyst.ui.navigation.topbars.TitleIconModifier
+import com.vitorpamplona.amethyst.ui.note.ArrowBackIcon
 import com.vitorpamplona.amethyst.ui.note.LoadAddressableNote
 import com.vitorpamplona.amethyst.ui.note.types.LongCommunityHeader
-import com.vitorpamplona.amethyst.ui.note.types.ShortCommunityHeader
+import com.vitorpamplona.amethyst.ui.note.types.ShortCommunityActionOptions
+import com.vitorpamplona.amethyst.ui.note.types.ShortCommunityHeaderNoActions
 import com.vitorpamplona.amethyst.ui.screen.RefresheableFeedView
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.communities.dal.CommunityFeedViewModel
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.communities.dal.CommunityModerationFeedViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.communities.datasource.CommunityFilterAssemblerSubscription
-import com.vitorpamplona.amethyst.ui.theme.BottomTopHeight
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.amethyst.ui.theme.Size35dp
+import com.vitorpamplona.amethyst.ui.theme.TabRowHeight
+import com.vitorpamplona.amethyst.ui.theme.isLight
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.Address
+import kotlinx.coroutines.launch
 
 @Composable
 fun CommunityScreen(
@@ -77,61 +104,116 @@ fun PrepareViewModelsCommunityScreen(
                 ),
         )
 
-    CommunityScreen(note, followsFeedViewModel, accountViewModel, nav)
+    val modFeedViewModel: CommunityModerationFeedViewModel =
+        viewModel(
+            key = note.idHex + "CommunityModerationFeedViewModel",
+            factory =
+                CommunityModerationFeedViewModel.Factory(
+                    note,
+                    accountViewModel.account,
+                ),
+        )
+
+    CommunityScreen(note, followsFeedViewModel, modFeedViewModel, accountViewModel, nav)
 }
 
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun CommunityScreen(
     note: AddressableNote,
     feedViewModel: CommunityFeedViewModel,
+    modFeedViewModel: CommunityModerationFeedViewModel,
     accountViewModel: AccountViewModel,
     nav: INav,
 ) {
     WatchLifecycleAndUpdateModel(feedViewModel)
+    WatchLifecycleAndUpdateModel(modFeedViewModel)
     CommunityFilterAssemblerSubscription(note, accountViewModel.dataSources().community)
 
+    val pagerState = rememberForeverPagerState(note.idHex + "CommunityScreenPagerState") { 2 }
+    val expanded = remember { mutableStateOf(false) }
+
     DisappearingScaffold(
         isInvertedLayout = false,
+        isActive = { !expanded.value },
         topBar = {
-            CommunityTopBar(note.address, accountViewModel, nav)
+            Column(
+                Modifier.clickable { expanded.value = !expanded.value },
+            ) {
+                ShorterTopAppBar(
+                    title = {
+                        ShortCommunityHeaderNoActions(note, accountViewModel, nav)
+                    },
+                    navigationIcon = {
+                        Row(TitleIconModifier, verticalAlignment = Alignment.CenterVertically) {
+                            IconButton(onClick = nav::popBack) { ArrowBackIcon() }
+                        }
+                    },
+                    actions = {
+                        Row(
+                            modifier =
+                                Modifier
+                                    .height(Size35dp)
+                                    .padding(start = 5.dp),
+                            verticalAlignment = Alignment.CenterVertically,
+                        ) {
+                            ShortCommunityActionOptions(note, accountViewModel, nav)
+                        }
+                    },
+                )
+
+                if (expanded.value) {
+                    val elevation = if (MaterialTheme.colorScheme.isLight) 1.dp else 10.dp
+                    Surface(modifier = Modifier.fillMaxWidth(), tonalElevation = elevation) {
+                        LongCommunityHeader(baseNote = note, accountViewModel = accountViewModel, nav = nav)
+                    }
+                }
+            }
+
+            TabRow(
+                containerColor = Color.Transparent,
+                contentColor = MaterialTheme.colorScheme.onBackground,
+                modifier = TabRowHeight,
+                selectedTabIndex = pagerState.currentPage,
+            ) {
+                val coroutineScope = rememberCoroutineScope()
+                Tab(
+                    selected = pagerState.currentPage == 0,
+                    text = { Text(text = stringRes(R.string.feed)) },
+                    onClick = { coroutineScope.launch { pagerState.animateScrollToPage(0) } },
+                )
+                Tab(
+                    selected = pagerState.currentPage == 1,
+                    text = { Text(text = stringRes(R.string.mod_queue)) },
+                    onClick = { coroutineScope.launch { pagerState.animateScrollToPage(1) } },
+                )
+            }
         },
         floatingButton = {
             NewCommunityNoteButton(note.idHex, accountViewModel, nav)
         },
         accountViewModel = accountViewModel,
     ) {
-        Column(
-            modifier = Modifier.padding(it).consumeWindowInsets(it),
-        ) {
-            RefresheableFeedView(
-                feedViewModel,
-                null,
-                accountViewModel = accountViewModel,
-                nav = nav,
-            )
-        }
-    }
-}
-
-@Composable
-fun CommunityTopBar(
-    id: Address,
-    accountViewModel: AccountViewModel,
-    nav: INav,
-) {
-    LoadAddressableNote(id, accountViewModel) { baseNote ->
-        if (baseNote != null) {
-            TopBarExtensibleWithBackButton(
-                title = { ShortCommunityHeader(baseNote, accountViewModel, nav) },
-                extendableRow = {
-                    Column(Modifier.verticalScroll(rememberScrollState())) {
-                        LongCommunityHeader(baseNote = baseNote, accountViewModel = accountViewModel, nav = nav)
-                    }
-                },
-                popBack = nav::popBack,
-            )
-        } else {
-            Spacer(BottomTopHeight)
+        HorizontalPager(
+            contentPadding = it,
+            state = pagerState,
+        ) { page ->
+            when (page) {
+                0 ->
+                    RefresheableFeedView(
+                        feedViewModel,
+                        null,
+                        accountViewModel = accountViewModel,
+                        nav = nav,
+                    )
+                1 ->
+                    RefresheableFeedView(
+                        modFeedViewModel,
+                        null,
+                        accountViewModel = accountViewModel,
+                        nav = nav,
+                    )
+            }
         }
     }
 }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/communities/NewCommunityNoteButton.kt

@@ -57,8 +57,8 @@ fun NewCommunityNoteButton(
     FloatingActionButton(
         onClick = {
             val route =
-                Route.NewShortNote(
-                    baseReplyTo = note.idHex,
+                Route.GenericCommentPost(
+                    replyTo = note.idHex,
                 )
             nav.nav(route)
         },

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/communities/dal/CommunityFeedFilter.kt

@@ -26,21 +26,28 @@ import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.ui.dal.AdditiveFeedFilter
 import com.vitorpamplona.amethyst.ui.dal.DefaultFeedOrder
-import com.vitorpamplona.quartz.nip01Core.core.HexKey
-import com.vitorpamplona.quartz.nip01Core.tags.addressables.isTaggedAddressableNote
+import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.isForCommunity
+import kotlin.collections.toSet
 
 class CommunityFeedFilter(
-    val note: AddressableNote,
+    val communityDefNote: AddressableNote,
     val account: Account,
 ) : AdditiveFeedFilter<Note>() {
-    override fun feedKey(): String = account.userProfile().pubkeyHex + "-" + note.idHex
+    val communityDefEvent = communityDefNote.event as? CommunityDefinitionEvent
+    val moderators = communityDefEvent?.moderatorKeys()?.toSet() ?: emptySet()
+
+    override fun feedKey(): String = account.userProfile().pubkeyHex + "-" + communityDefNote.idHex
 
     override fun feed(): List<Note> {
-        val myPubKey = account.userProfile().pubkeyHex
+        if (communityDefEvent == null) return emptyList()
+
         val result =
             LocalCache.notes.mapFlattenIntoSet { _, it ->
-                filterMap(it, myPubKey)
+                filterMap(it)
             }
 
         return sort(result)
@@ -49,35 +56,39 @@ class CommunityFeedFilter(
     override fun applyFilter(newItems: Set<Note>): Set<Note> = innerApplyFilter(newItems)
 
     private fun innerApplyFilter(collection: Collection<Note>): Set<Note> {
-        val myPubKey = account.userProfile().pubkeyHex
+        if (communityDefEvent == null) return emptySet()
 
         return collection
             .mapNotNull {
-                filterMap(it, myPubKey)
+                filterMap(it)
             }.flatten()
             .toSet()
     }
 
-    private fun filterMap(
-        note: Note,
-        myPubKey: HexKey,
-    ): List<Note>? =
-        if (
+    private fun filterMap(note: Note): List<Note>? {
+        val noteEvent = note.event ?: return null
+
+        return if (
             // Only Approvals
-            note.event is CommunityPostApprovalEvent &&
-            // Of the given community
-            note.event?.isTaggedAddressableNote(this.note.idHex) == true
+            (noteEvent is TextNoteEvent || noteEvent is CommentEvent || noteEvent is CommunityPostApprovalEvent) &&
+            noteEvent.pubKey in moderators &&
+            noteEvent.isForCommunity(this.communityDefNote.idHex)
         ) {
-            // if it is my post, bring on
-            if (note.author?.pubkeyHex == myPubKey && note.isNewThread()) {
-                listOf(note)
+            if (noteEvent is CommunityPostApprovalEvent) {
+                note.replyTo?.filter {
+                    it.isNewThread()
+                }
             } else {
-                // brings the actual posts, not the approvals
-                note.replyTo?.filter { it.isNewThread() }
+                if (note.isNewThread()) {
+                    listOf(note)
+                } else {
+                    null
+                }
             }
         } else {
             null
         }
+    }
 
     override fun sort(items: Set<Note>): List<Note> = items.sortedWith(DefaultFeedOrder)
 }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/communities/dal/CommunityModerationFeedFilter.kt

@@ -0,0 +1,126 @@
+/**
+ * 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.amethyst.ui.screen.loggedIn.communities.dal
+
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.AddressableNote
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.ui.dal.AdditiveFeedFilter
+import com.vitorpamplona.amethyst.ui.dal.DefaultFeedOrder
+import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
+import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
+import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.isForCommunity
+
+class CommunityModerationFeedFilter(
+    val communityDefNote: AddressableNote,
+    val account: Account,
+) : AdditiveFeedFilter<Note>() {
+    val approvedFilter = CommunityFeedFilter(communityDefNote, account)
+
+    val communityDefEvent = communityDefNote.event as? CommunityDefinitionEvent
+    val moderators = communityDefEvent?.moderatorKeys()?.toSet() ?: emptySet()
+
+    override fun feedKey(): String = account.userProfile().pubkeyHex + "-" + communityDefNote.idHex
+
+    override fun feed(): List<Note> {
+        if (communityDefEvent == null) return emptyList()
+
+        val result =
+            LocalCache.notes.mapFlattenIntoSet { _, it ->
+                filterMap(it)
+            }
+
+        return sort(result)
+    }
+
+    override fun updateListWith(
+        oldList: List<Note>,
+        newItems: Set<Note>,
+    ): List<Note> {
+        val approved = approvedFilter.applyFilter(newItems)
+
+        val newOldList =
+            if (approved.isNotEmpty()) {
+                oldList - approved
+            } else {
+                oldList
+            }
+
+        val newItemsToBeAdded = applyFilter(newItems)
+        return if (newItemsToBeAdded.isNotEmpty()) {
+            val newList = newOldList.toSet() + newItemsToBeAdded
+            sort(newList).take(limit())
+        } else {
+            newOldList
+        }
+    }
+
+    override fun applyFilter(newItems: Set<Note>): Set<Note> = innerApplyFilter(newItems)
+
+    private fun innerApplyFilter(collection: Collection<Note>): Set<Note> {
+        if (communityDefEvent == null) return emptySet()
+
+        return collection
+            .mapNotNull {
+                filterMap(it)
+            }.flatten()
+            .toSet()
+    }
+
+    private fun wasApprovedByCommunity(note: Note): Boolean =
+        note.boosts.any {
+            val approvalEvent = it.event
+            (approvalEvent is CommunityPostApprovalEvent || approvalEvent is RepostEvent || approvalEvent is GenericRepostEvent) &&
+                approvalEvent.pubKey in moderators &&
+                approvalEvent.isForCommunity(this.communityDefNote.idHex)
+        }
+
+    private fun filterMap(note: Note): List<Note>? {
+        val noteEvent = note.event ?: return null
+
+        return if (
+            (noteEvent is TextNoteEvent || noteEvent is CommentEvent || noteEvent is CommunityPostApprovalEvent) &&
+            noteEvent.isForCommunity(this.communityDefNote.idHex) &&
+            noteEvent.pubKey !in moderators
+        ) {
+            if (noteEvent is CommunityPostApprovalEvent) {
+                note.replyTo?.filter {
+                    it.isNewThread() && !wasApprovedByCommunity(it)
+                }
+            } else {
+                if (note.isNewThread() && !wasApprovedByCommunity(note)) {
+                    listOf(note)
+                } else {
+                    null
+                }
+            }
+        } else {
+            null
+        }
+    }
+
+    override fun sort(items: Set<Note>): List<Note> = items.sortedWith(DefaultFeedOrder)
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/communities/dal/CommunityModerationFeedViewModel.kt

@@ -0,0 +1,40 @@
+/**
+ * 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.amethyst.ui.screen.loggedIn.communities.dal
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.AddressableNote
+import com.vitorpamplona.amethyst.ui.screen.FeedViewModel
+
+class CommunityModerationFeedViewModel(
+    val note: AddressableNote,
+    val account: Account,
+) : FeedViewModel(CommunityModerationFeedFilter(note, account)) {
+    class Factory(
+        val note: AddressableNote,
+        val account: Account,
+    ) : ViewModelProvider.Factory {
+        @Suppress("UNCHECKED_CAST")
+        override fun <T : ViewModel> create(modelClass: Class<T>): T = CommunityModerationFeedViewModel(note, account) as T
+    }
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/communities/datasource/CommunityFeedFilterSubAssembler.kt

@@ -26,6 +26,7 @@ import com.vitorpamplona.amethyst.service.relays.SincePerRelayMap
 import com.vitorpamplona.quartz.nip01Core.relay.client.NostrClient
 import com.vitorpamplona.quartz.nip01Core.relay.client.pool.RelayBasedFilter
 import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.utils.mapOfSet
 
 class CommunityFeedFilterSubAssembler(
     client: NostrClient,
@@ -40,14 +41,34 @@ class CommunityFeedFilterSubAssembler(
         return keys.flatMap {
             val commEvent = it.community.event
             if (commEvent is CommunityDefinitionEvent) {
-                val relays =
-                    commEvent.relayUrls().ifEmpty { null }
-                        ?: LocalCache.relayHints.hintsForAddress(commEvent.addressTag()).ifEmpty { null }
-                        ?: it.community.relayUrls()
+                val communityRelays =
+                    (
+                        commEvent.relayUrls().ifEmpty {
+                            LocalCache.relayHints.hintsForAddress(commEvent.addressTag())
+                        } + it.community.relayUrls()
+                    ).toSet()
 
-                relays.toSet().map {
-                    filterCommunityPosts(it, commEvent, since?.get(it)?.time)
-                }
+                val moderatorsOutbox =
+                    mapOfSet {
+                        commEvent.moderatorKeys().forEach { modKey ->
+                            // hits the relay of each moderator for approvals
+                            LocalCache.checkGetOrCreateUser(modKey)?.outboxRelays()?.forEach { relay ->
+                                add(relay, modKey)
+                            }
+
+                            // static relay hints from this community
+                            communityRelays.forEach { relay ->
+                                add(relay, modKey)
+                            }
+                        }
+                    }
+
+                moderatorsOutbox.map { (relay, authors) ->
+                    filterCommunityPostsFromModerators(relay, authors, commEvent, since?.get(relay)?.time)
+                } +
+                    communityRelays.map { relay ->
+                        filterCommunityPostsFromEverybody(relay, commEvent, since?.get(relay)?.time)
+                    }
             } else {
                 emptyList()
             }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/communities/datasource/FilterCommunityPosts.kt

@@ -20,11 +20,29 @@
  */
 package com.vitorpamplona.amethyst.ui.screen.loggedIn.communities.datasource
 
+import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.relay.client.pool.RelayBasedFilter
 import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
 import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
+import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
+import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
+import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
+import com.vitorpamplona.quartz.nip23LongContent.LongTextNoteEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip99Classifieds.ClassifiedsEvent
+
+val CommunityPostKinds =
+    listOf(
+        TextNoteEvent.KIND,
+        CommentEvent.KIND,
+        RepostEvent.KIND,
+        GenericRepostEvent.KIND,
+        ClassifiedsEvent.KIND,
+        LongTextNoteEvent.KIND,
+        CommunityPostApprovalEvent.KIND,
+    )
 
 fun filterCommunityPosts(
     relay: NormalizedRelayUrl,
@@ -35,10 +53,44 @@ fun filterCommunityPosts(
         relay = relay,
         filter =
             Filter(
-                authors = community.moderators().map { it.pubKey }.plus(community.pubKey),
+                authors = community.moderatorKeys(),
                 tags = mapOf("a" to listOf(community.addressTag())),
-                kinds = CommunityPostApprovalEvent.KIND_LIST,
+                kinds = CommunityPostKinds,
                 limit = 500,
                 since = since,
             ),
     )
+
+fun filterCommunityPostsFromModerators(
+    relay: NormalizedRelayUrl,
+    authors: Set<HexKey>,
+    community: CommunityDefinitionEvent,
+    since: Long?,
+): RelayBasedFilter =
+    RelayBasedFilter(
+        relay = relay,
+        filter =
+            Filter(
+                authors = authors.sorted(),
+                tags = mapOf("a" to listOf(community.addressTag())),
+                kinds = CommunityPostKinds,
+                limit = 100,
+                since = since,
+            ),
+    )
+
+fun filterCommunityPostsFromEverybody(
+    relay: NormalizedRelayUrl,
+    community: CommunityDefinitionEvent,
+    since: Long?,
+): RelayBasedFilter =
+    RelayBasedFilter(
+        relay = relay,
+        filter =
+            Filter(
+                tags = mapOf("a" to listOf(community.addressTag())),
+                kinds = CommunityPostKinds,
+                limit = 100,
+                since = since,
+            ),
+    )

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

@@ -33,8 +33,10 @@ import com.vitorpamplona.quartz.nip01Core.core.AddressableEvent
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.tags.people.isTaggedUser
 import com.vitorpamplona.quartz.nip10Notes.BaseThreadedEvent
+import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
 import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
 import com.vitorpamplona.quartz.nip25Reactions.ReactionEvent
 import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelCreateEvent
 import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelMetadataEvent
@@ -50,6 +52,8 @@ import com.vitorpamplona.quartz.nip57Zaps.LnZapRequestEvent
 import com.vitorpamplona.quartz.nip58Badges.BadgeDefinitionEvent
 import com.vitorpamplona.quartz.nip58Badges.BadgeProfilesEvent
 import com.vitorpamplona.quartz.nip59Giftwrap.wraps.GiftWrapEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.communityAddress
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.nip84Highlights.HighlightEvent
 import com.vitorpamplona.quartz.nip90Dvms.NIP90ContentDiscoveryRequestEvent
 import com.vitorpamplona.quartz.nip90Dvms.NIP90ContentDiscoveryResponseEvent
@@ -157,7 +161,26 @@ class NotificationFeedFilter(
         }
 
         if (event is BaseThreadedEvent) {
-            if (note.replyTo?.any { it.author?.pubkeyHex == authorHex } == true) return true
+            if (note.replyTo?.any { it.author?.pubkeyHex == authorHex } == true) {
+                return true
+            }
+
+            if ((event is TextNoteEvent || event is CommentEvent)) {
+                val community =
+                    event
+                        .communityAddress()
+                        ?.let {
+                            LocalCache.getAddressableNoteIfExists(it)
+                        }?.event as? CommunityDefinitionEvent
+                if (community != null) {
+                    val moderators = community.moderatorKeys().toSet()
+                    val isModerator = moderators.contains(authorHex)
+
+                    if (isModerator && event.pubKey !in moderators) {
+                        return true
+                    }
+                }
+            }
 
             val isAuthoredPostCited = event.findCitations().any { LocalCache.getNoteIfExists(it)?.author?.pubkeyHex == authorHex }
             val isAuthorDirectlyCited = event.citedUsers().contains(authorHex)

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/profile/newthreads/dal/UserProfileNewThreadFeedFilter.kt

@@ -35,6 +35,7 @@ import com.vitorpamplona.quartz.nip01Core.core.AddressableEvent
 import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
 import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
 import com.vitorpamplona.quartz.nip23LongContent.LongTextNoteEvent
 import com.vitorpamplona.quartz.nip35Torrents.TorrentEvent
 import com.vitorpamplona.quartz.nip54Wiki.WikiNoteEvent
@@ -70,6 +71,7 @@ class UserProfileNewThreadFeedFilter(
         it.author == user &&
             (
                 it.event is TextNoteEvent ||
+                    it.event is CommentEvent ||
                     it.event is ClassifiedsEvent ||
                     it.event is RepostEvent ||
                     it.event is GenericRepostEvent ||

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

@@ -49,6 +49,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.MutableState
 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
@@ -75,6 +76,7 @@ import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.richtext.MediaUrlImage
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.service.relayClient.reqCommand.event.observeCommunityApprovalNeedStatus
 import com.vitorpamplona.amethyst.ui.components.AutoNonlazyGrid
 import com.vitorpamplona.amethyst.ui.components.GenericLoadable
 import com.vitorpamplona.amethyst.ui.components.LoadNote
@@ -96,7 +98,9 @@ import com.vitorpamplona.amethyst.ui.note.LongPressToQuickAction
 import com.vitorpamplona.amethyst.ui.note.NoteAuthorPicture
 import com.vitorpamplona.amethyst.ui.note.NoteCompose
 import com.vitorpamplona.amethyst.ui.note.NoteUsernameDisplay
+import com.vitorpamplona.amethyst.ui.note.ObserveDraftEvent
 import com.vitorpamplona.amethyst.ui.note.ReactionsRow
+import com.vitorpamplona.amethyst.ui.note.RenderApproveButton
 import com.vitorpamplona.amethyst.ui.note.RenderDraft
 import com.vitorpamplona.amethyst.ui.note.RenderRepost
 import com.vitorpamplona.amethyst.ui.note.WatchNoteEvent
@@ -168,6 +172,7 @@ import com.vitorpamplona.amethyst.ui.theme.DoubleVertSpacer
 import com.vitorpamplona.amethyst.ui.theme.EditFieldBorder
 import com.vitorpamplona.amethyst.ui.theme.EditFieldTrailingIconModifier
 import com.vitorpamplona.amethyst.ui.theme.FeedPadding
+import com.vitorpamplona.amethyst.ui.theme.PaddingHorizontal12Modifier
 import com.vitorpamplona.amethyst.ui.theme.Size55dp
 import com.vitorpamplona.amethyst.ui.theme.Size5dp
 import com.vitorpamplona.amethyst.ui.theme.StdHorzSpacer
@@ -189,7 +194,6 @@ import com.vitorpamplona.quartz.experimental.nip95.header.FileStorageHeaderEvent
 import com.vitorpamplona.quartz.experimental.publicMessages.PublicMessageEvent
 import com.vitorpamplona.quartz.experimental.zapPolls.PollNoteEvent
 import com.vitorpamplona.quartz.nip01Core.core.Event
-import com.vitorpamplona.quartz.nip01Core.tags.addressables.isTaggedAddressableKind
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.geoHashOrScope
 import com.vitorpamplona.quartz.nip04Dm.messages.PrivateDmEvent
 import com.vitorpamplona.quartz.nip13Pow.strongPoWOrNull
@@ -227,7 +231,8 @@ import com.vitorpamplona.quartz.nip65RelayList.AdvertisedRelayListEvent
 import com.vitorpamplona.quartz.nip68Picture.PictureEvent
 import com.vitorpamplona.quartz.nip71Video.VideoEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
-import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.communityAddress
+import com.vitorpamplona.quartz.nip72ModCommunities.isACommunityPost
 import com.vitorpamplona.quartz.nip84Highlights.HighlightEvent
 import com.vitorpamplona.quartz.nip89AppHandlers.definition.AppDefinitionEvent
 import com.vitorpamplona.quartz.nip94FileMetadata.FileHeaderEvent
@@ -435,6 +440,7 @@ private fun FullBleedNoteCompose(
 ) {
     val noteEvent = baseNote.event ?: return
 
+    val isDraft = baseNote.isDraft()
     val backgroundColor =
         calculateBackgroundColor(
             baseNote.createdAt(),
@@ -467,15 +473,28 @@ private fun FullBleedNoteCompose(
                 Row(verticalAlignment = Alignment.CenterVertically) {
                     NoteUsernameDisplay(baseNote, Modifier.weight(1f), accountViewModel = accountViewModel)
 
-                    val isCommunityPost =
-                        remember(baseNote) {
-                            baseNote.event?.isTaggedAddressableKind(CommunityDefinitionEvent.KIND) == true
+                    if (isDraft) {
+                        ObserveDraftEvent(baseNote, accountViewModel) { draftNote ->
+                            val isCommunityPost by remember(draftNote) {
+                                derivedStateOf { draftNote.event?.isACommunityPost() == true }
+                            }
+
+                            if (isCommunityPost) {
+                                DisplayFollowingCommunityInPost(draftNote, accountViewModel, nav)
+                            } else {
+                                DisplayFollowingHashtagsInPost(draftNote, accountViewModel, nav)
+                            }
+                        }
+                    } else {
+                        val isCommunityPost by remember(baseNote) {
+                            derivedStateOf { baseNote.event?.isACommunityPost() == true }
                         }
 
-                    if (isCommunityPost) {
-                        DisplayFollowingCommunityInPost(baseNote, accountViewModel, nav)
-                    } else {
-                        DisplayFollowingHashtagsInPost(baseNote, accountViewModel, nav)
+                        if (isCommunityPost) {
+                            DisplayFollowingCommunityInPost(baseNote, accountViewModel, nav)
+                        } else {
+                            DisplayFollowingHashtagsInPost(baseNote, accountViewModel, nav)
+                        }
                     }
 
                     CheckAndDisplayEditStatus(editState)
@@ -508,7 +527,7 @@ private fun FullBleedNoteCompose(
                         DisplayPoW(pow)
                     }
 
-                    if (baseNote.isDraft()) {
+                    if (isDraft) {
                         DisplayDraft()
                     }
 
@@ -527,9 +546,7 @@ private fun FullBleedNoteCompose(
         }
 
         Row(
-            modifier =
-                modifier
-                    .padding(horizontal = 12.dp),
+            modifier = PaddingHorizontal12Modifier,
         ) {
             Column {
                 if (noteEvent is ChannelCreateEvent) {
@@ -753,17 +770,43 @@ private fun FullBleedNoteCompose(
         val zapSplits = remember(noteEvent) { noteEvent.hasZapSplitSetup() }
         if (zapSplits) {
             Spacer(modifier = DoubleVertSpacer)
-            Row(
-                modifier = Modifier.padding(horizontal = 12.dp),
-            ) {
+            Row(PaddingHorizontal12Modifier) {
                 DisplayZapSplits(noteEvent, false, accountViewModel, nav)
             }
         }
 
+        RenderApprovalIfNeeded(baseNote, accountViewModel, nav)
+
         ReactionsRow(baseNote, showReactionDetail = true, addPadding = true, editState = editState, accountViewModel = accountViewModel, nav = nav)
     }
 }
 
+@Composable
+private fun RenderApprovalIfNeeded(
+    baseNote: Note,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    if (baseNote.isNewThread()) {
+        val communityAddress =
+            remember(baseNote) {
+                baseNote.event?.communityAddress()
+            }
+        communityAddress?.let {
+            LoadAddressableNote(it, accountViewModel) { community ->
+                if (community != null) {
+                    val showApproveButton by observeCommunityApprovalNeedStatus(baseNote, community, accountViewModel)
+                    if (showApproveButton == true) {
+                        Row(PaddingHorizontal12Modifier) {
+                            RenderApproveButton(baseNote, community, accountViewModel)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
 @Composable
 private fun RenderClassifiedsReaderForThread(
     noteEvent: ClassifiedsEvent,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/theme/Shape.kt

@@ -356,3 +356,5 @@ val BadgePictureModifier = Modifier.size(35.dp).clip(shape = CutCornerShape(20))
 val MaxWidthPaddingTop5dp = Modifier.fillMaxWidth().padding(top = 5.dp)
 
 val VoiceHeightModifier = Modifier.fillMaxWidth().height(100.dp)
+
+val PaddingHorizontal12Modifier = Modifier.padding(horizontal = 12.dp)

amethyst/src/main/res/values/strings.xml

@@ -175,6 +175,8 @@
     <string name="blocked_users">Blocked Users</string>
     <string name="new_threads">New Threads</string>
     <string name="conversations">Conversations</string>
+    <string name="feed">Feed</string>
+    <string name="mod_queue">Mod Queue</string>
     <string name="notes">Notes</string>
     <string name="replies">Replies</string>
     <string name="mutual">Yours</string>
@@ -806,6 +808,10 @@
     <string name="created_at">Created at</string>
     <string name="rules">Rules</string>
 
+    <string name="community_description">About Us</string>
+    <string name="guidelines">Guidelines</string>
+    <string name="moderators">Moderators</string>
+
     <string name="login_with_external_signer">Login with Amber</string>
 
     <string name="status_update">Update your status</string>

amethyst/src/play/java/com/vitorpamplona/amethyst/ui/components/TranslatableRichTextViewer.kt

@@ -81,50 +81,13 @@ fun TranslatableRichTextViewer(
     accountViewModel: AccountViewModel,
     nav: INav,
 ) {
-    var translatedTextState by translateAndWatchLanguageChanges(content, id, accountViewModel)
-
-    CrossfadeIfEnabled(targetState = translatedTextState, accountViewModel = accountViewModel) {
-        RenderText(
-            translatedTextState = it,
-            content = content,
-            canPreview = canPreview,
-            quotesLeft = quotesLeft,
-            modifier = modifier,
-            tags = tags,
-            backgroundColor = backgroundColor,
-            id = id,
-            callbackUri = callbackUri,
-            accountViewModel = accountViewModel,
-            nav = nav,
-        )
-    }
-}
-
-@Composable
-private fun RenderText(
-    translatedTextState: TranslationConfig,
-    content: String,
-    canPreview: Boolean,
-    quotesLeft: Int,
-    modifier: Modifier,
-    tags: ImmutableListOfLists<String>,
-    backgroundColor: MutableState<Color>,
-    id: String,
-    callbackUri: String? = null,
-    accountViewModel: AccountViewModel,
-    nav: INav,
-) {
-    var showOriginal by
-        remember(translatedTextState) { mutableStateOf(translatedTextState.showOriginal) }
-
-    val toBeViewed by
-        remember(translatedTextState) {
-            derivedStateOf { if (showOriginal) content else translatedTextState.result ?: content }
-        }
-
-    Column {
+    TranslatableRichTextViewer(
+        content = content,
+        id = id,
+        accountViewModel = accountViewModel,
+    ) {
         ExpandableRichTextViewer(
-            toBeViewed,
+            it,
             canPreview,
             quotesLeft,
             modifier,
@@ -135,6 +98,45 @@ private fun RenderText(
             accountViewModel,
             nav,
         )
+    }
+}
+
+@Composable
+fun TranslatableRichTextViewer(
+    content: String,
+    id: String,
+    accountViewModel: AccountViewModel,
+    displayText: @Composable (String) -> Unit,
+) {
+    var translatedTextState by translateAndWatchLanguageChanges(content, id, accountViewModel)
+
+    CrossfadeIfEnabled(targetState = translatedTextState, accountViewModel = accountViewModel) {
+        RenderTextWithTranslateOptions(
+            translatedTextState = it,
+            content = content,
+            accountViewModel = accountViewModel,
+            displayText = displayText,
+        )
+    }
+}
+
+@Composable
+private fun RenderTextWithTranslateOptions(
+    translatedTextState: TranslationConfig,
+    content: String,
+    accountViewModel: AccountViewModel,
+    displayText: @Composable (String) -> Unit,
+) {
+    var showOriginal by
+        remember(translatedTextState) { mutableStateOf(translatedTextState.showOriginal) }
+
+    val toBeViewed by
+        remember(translatedTextState) {
+            derivedStateOf { if (showOriginal) content else translatedTextState.result ?: content }
+        }
+
+    Column {
+        displayText(toBeViewed)
 
         if (
             translatedTextState.sourceLang != null &&
@@ -325,7 +327,7 @@ fun translateAndWatchLanguageChanges(
     id: String,
     accountViewModel: AccountViewModel,
 ): MutableState<TranslationConfig> {
-    var translatedTextState = remember(id) { mutableStateOf(TranslationsCache.get(content)) }
+    val translatedTextState = remember(id) { mutableStateOf(TranslationsCache.get(content)) }
 
     TranslateAndWatchLanguageChanges(
         content,

quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/tags/addressables/EventExt.kt

@@ -32,8 +32,12 @@ fun Event.isTaggedAddressableNotes(addressIds: Set<String>) = tags.isTaggedAddre
 
 fun Event.isTaggedAddressableKind(kind: Int) = tags.isTaggedAddressableKind(kind)
 
+fun Event.isTaggedAddressableKind(kindStr: String) = tags.isTaggedAddressableKind(kindStr)
+
 fun Event.getTagOfAddressableKind(kind: Int) = tags.getTagOfAddressableKind(kind)
 
+fun Event.getTagOfAddressableKind(kindStr: String) = tags.getTagOfAddressableKind(kindStr)
+
 fun Event.taggedATags() = tags.taggedATags()
 
 fun Event.firstTaggedATag() = tags.firstTaggedATag()

quartz/src/main/java/com/vitorpamplona/quartz/nip01Core/tags/addressables/TagArrayExt.kt

@@ -35,8 +35,12 @@ fun TagArray.isTaggedAddressableNotes(addressIds: Set<String>) = this.any(ATag::
 
 fun TagArray.isTaggedAddressableKind(kind: Int) = this.any(ATag::isTaggedWithKind, kind.toString())
 
+fun TagArray.isTaggedAddressableKind(kindStr: String) = this.any(ATag::isTaggedWithKind, kindStr)
+
 fun TagArray.getTagOfAddressableKind(kind: Int) = this.fastFirstNotNullOfOrNull(ATag::parseIfOfKind, kind.toString())
 
+fun TagArray.getTagOfAddressableKind(kindStr: String) = this.fastFirstNotNullOfOrNull(ATag::parseIfOfKind, kindStr.toString())
+
 fun TagArray.taggedATags() = this.mapNotNull(ATag::parse)
 
 fun TagArray.firstTaggedATag() = this.fastFirstNotNullOfOrNull(ATag::parse)

quartz/src/main/java/com/vitorpamplona/quartz/nip10Notes/BaseThreadedEvent.kt

@@ -72,16 +72,18 @@ open class BaseThreadedEvent(
         return newStyleReply ?: newStyleRoot ?: oldStylePositional
     }
 
-    fun tagsWithoutCitations(): List<String> {
+    open fun tagsWithoutCitations(): List<String> {
         val certainRepliesTo = markedReplyTos()
         val uncertainRepliesTo = unmarkedReplyTos()
 
         val tagAddresses =
             taggedATags()
-                .filter {
-                    it.kind != CommunityDefinitionEvent.KIND && (kind != WikiNoteEvent.KIND || it.kind != WikiNoteEvent.KIND)
+                .filter { aTag ->
+                    aTag.kind != CommunityDefinitionEvent.KIND && (kind != WikiNoteEvent.KIND || aTag.kind != WikiNoteEvent.KIND)
                     // removes forks from itself.
-                }.map { it.toTag() }
+                }.map {
+                    it.toTag()
+                }
 
         if (certainRepliesTo.isEmpty() && uncertainRepliesTo.isEmpty() && tagAddresses.isEmpty()) return emptyList()
 

quartz/src/main/java/com/vitorpamplona/quartz/nip22Comments/CommentEvent.kt

@@ -25,6 +25,7 @@ import com.vitorpamplona.quartz.nip01Core.core.AddressableEvent
 import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder
+import com.vitorpamplona.quartz.nip01Core.core.any
 import com.vitorpamplona.quartz.nip01Core.hints.AddressHintProvider
 import com.vitorpamplona.quartz.nip01Core.hints.EventHintBundle
 import com.vitorpamplona.quartz.nip01Core.hints.EventHintProvider
@@ -33,6 +34,7 @@ import com.vitorpamplona.quartz.nip01Core.hints.types.AddressHint
 import com.vitorpamplona.quartz.nip01Core.hints.types.EventIdHint
 import com.vitorpamplona.quartz.nip01Core.hints.types.PubKeyHint
 import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate
+import com.vitorpamplona.quartz.nip01Core.tags.addressables.Address
 import com.vitorpamplona.quartz.nip01Core.tags.geohash.GeoHashTag
 import com.vitorpamplona.quartz.nip10Notes.BaseThreadedEvent
 import com.vitorpamplona.quartz.nip18Reposts.quotes.QTag
@@ -55,10 +57,12 @@ import com.vitorpamplona.quartz.nip22Comments.tags.RootIdentifierTag
 import com.vitorpamplona.quartz.nip22Comments.tags.RootKindTag
 import com.vitorpamplona.quartz.nip31Alts.alt
 import com.vitorpamplona.quartz.nip50Search.SearchableEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.nip73ExternalIds.ExternalId
 import com.vitorpamplona.quartz.nip73ExternalIds.location.GeohashId
 import com.vitorpamplona.quartz.utils.TimeUtils
 import com.vitorpamplona.quartz.utils.lastNotNullOfOrNull
+import kotlin.collections.mapNotNull
 
 @Immutable
 class CommentEvent(
@@ -126,6 +130,28 @@ class CommentEvent(
         return aHints + qHints + nip19Hints
     }
 
+    fun rootEventIds() = tags.mapNotNull(RootEventTag::parseKey)
+
+    fun replyEventIds() = tags.mapNotNull(ReplyEventTag::parseKey)
+
+    fun rootAddressIds() = tags.mapNotNull(RootAddressTag::parseAddressId)
+
+    fun hasRootAddress(addressId: String) = tags.any(RootAddressTag::isTagged, addressId)
+
+    fun hasReplyAddress(addressId: String) = tags.any(ReplyAddressTag::isTagged, addressId)
+
+    fun replyAddressIds() = tags.mapNotNull(ReplyAddressTag::parseAddressId)
+
+    fun replyAddress() = tags.mapNotNull(ReplyAddressTag::parseAddress)
+
+    fun rootScopes() = tags.filter { RootIdentifierTag.match(it) || RootAddressTag.match(it) || RootEventTag.match(it) }
+
+    fun rootKinds() = tags.filter(RootKindTag::match)
+
+    fun directReplies() = tags.filter { ReplyIdentifierTag.match(it) || ReplyAddressTag.match(it) || ReplyEventTag.match(it) }
+
+    fun directKinds() = tags.filter(ReplyKindTag::match)
+
     fun rootAuthor() = tags.firstNotNullOfOrNull(RootAuthorTag::parse)
 
     fun replyAuthor() = tags.firstNotNullOfOrNull(ReplyAuthorTag::parse)
@@ -142,14 +168,6 @@ class CommentEvent(
 
     fun replyAuthorHints() = tags.mapNotNull(ReplyAuthorTag::parseAsHint)
 
-    fun rootScopes() = tags.filter { RootIdentifierTag.match(it) || RootAddressTag.match(it) || RootEventTag.match(it) }
-
-    fun rootKinds() = tags.filter(RootKindTag::match)
-
-    fun directReplies() = tags.filter { ReplyIdentifierTag.match(it) || ReplyAddressTag.match(it) || ReplyEventTag.match(it) }
-
-    fun directKinds() = tags.filter(ReplyKindTag::match)
-
     /** root and reply scope search */
     fun isTaggedScope(scopeId: String) = tags.any { RootIdentifierTag.isTagged(it, scopeId) || ReplyIdentifierTag.isTagged(it, scopeId) }
 
@@ -164,9 +182,9 @@ class CommentEvent(
 
     fun isScoped(scopeTest: (String) -> Boolean) = tags.any { RootIdentifierTag.isTagged(it, scopeTest) || ReplyIdentifierTag.isTagged(it, scopeTest) }
 
-    fun hasRootScopeKind(kind: String) = tags.any { RootKindTag.isKind(it, kind) }
+    fun hasRootScopeKind(kind: String) = tags.any(RootKindTag::isKind, kind)
 
-    fun hasReplyScopeKind(kind: String) = tags.any { ReplyKindTag.isKind(it, kind) }
+    fun hasReplyScopeKind(kind: String) = tags.any(ReplyKindTag::isKind, kind)
 
     fun hasScopeKind(kind: String) = tags.any { RootKindTag.isKind(it, kind) || ReplyKindTag.isKind(it, kind) }
 
@@ -184,12 +202,31 @@ class CommentEvent(
         tags.lastNotNullOfOrNull(ReplyEventTag::parseKey)
             ?: tags.lastNotNullOfOrNull(RootEventTag::parseKey)
 
+    fun rootAddress() = tags.mapNotNull(RootAddressTag::parseAddress)
+
+    fun rootAddressId() = tags.mapNotNull(RootAddressTag::parseAddressId)
+
     fun replyingToAddressId(): String? =
-        tags.lastNotNullOfOrNull(RootAddressTag::parseAddressId)
-            ?: tags.lastNotNullOfOrNull(ReplyAddressTag::parseAddressId)
+        tags.lastNotNullOfOrNull(ReplyAddressTag::parseAddressId)
+            ?: tags.lastNotNullOfOrNull(RootAddressTag::parseAddressId)
 
     override fun replyingToAddressOrEvent(): HexKey? = replyingToAddressId() ?: replyingTo()
 
+    override fun tagsWithoutCitations(): List<String> {
+        val rootAddress = rootAddressIds()
+        val replyAddress = replyAddressIds()
+
+        if (
+            rootAddress.any { Address.isOfKind(it, CommunityDefinitionEvent.KIND_STR) } &&
+            replyAddress.any { Address.isOfKind(it, CommunityDefinitionEvent.KIND_STR) }
+        ) {
+            // this is the root of the community post
+            return emptyList()
+        }
+
+        return rootAddress + replyAddress + rootEventIds() + replyEventIds()
+    }
+
     companion object {
         const val KIND = 1111
         const val ALT = "Reply to "

quartz/src/main/java/com/vitorpamplona/quartz/nip22Comments/tags/ReplyAddressTag.kt

@@ -44,6 +44,12 @@ class ReplyAddressTag(
         @JvmStatic
         fun match(tag: Tag) = tag.has(1) && tag[0] == TAG_NAME && tag[1].isNotEmpty()
 
+        @JvmStatic
+        fun isTagged(
+            tag: Array<String>,
+            addressId: String,
+        ) = tag.has(1) && tag[0] == RootAddressTag.Companion.TAG_NAME && tag[1] == addressId
+
         @JvmStatic
         fun parse(tag: Array<String>): ReplyAddressTag? {
             ensure(tag.has(1)) { return null }
@@ -55,6 +61,15 @@ class ReplyAddressTag(
             return ReplyAddressTag(tag[1], relayHint)
         }
 
+        @JvmStatic
+        fun parseAddress(tag: Array<String>): Address? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(tag[1].isNotEmpty()) { return null }
+
+            return Address.parse(tag[1])
+        }
+
         @JvmStatic
         fun parseAddressId(tag: Array<String>): String? {
             ensure(tag.has(1)) { return null }

quartz/src/main/java/com/vitorpamplona/quartz/nip22Comments/tags/RootAddressTag.kt

@@ -67,6 +67,15 @@ class RootAddressTag(
             return RootAddressTag(tag[1], relayHint)
         }
 
+        @JvmStatic
+        fun parseAddress(tag: Array<String>): Address? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(tag[1].isNotEmpty()) { return null }
+
+            return Address.parse(tag[1])
+        }
+
         @JvmStatic
         fun parseValidAddress(tag: Array<String>): String? {
             ensure(tag.has(1)) { return null }

quartz/src/main/java/com/vitorpamplona/quartz/nip72ModCommunities/EventExt.kt

@@ -0,0 +1,58 @@
+/**
+ * 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.nip72ModCommunities
+
+import com.vitorpamplona.quartz.nip01Core.core.Event
+import com.vitorpamplona.quartz.nip01Core.core.any
+import com.vitorpamplona.quartz.nip01Core.core.fastFirstNotNullOfOrNull
+import com.vitorpamplona.quartz.nip01Core.tags.addressables.Address
+import com.vitorpamplona.quartz.nip22Comments.CommentEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.follow.tags.CommunityTag
+
+fun Event.isACommunityPost(): Boolean =
+    if (this is CommentEvent) {
+        this.isCommunityScoped()
+    } else {
+        this.tags.any(CommunityTag::isTaggedWithKind, CommunityDefinitionEvent.KIND_STR)
+    }
+
+fun Event.isForCommunity(communityAddressId: String): Boolean =
+    if (this is CommentEvent) {
+        this.hasRootAddress(communityAddressId)
+    } else {
+        tags.any(CommunityTag::isTagged, communityAddressId)
+    }
+
+fun Event.communityAddress(): Address? =
+    if (this is CommentEvent) {
+        this.rootAddress().firstNotNullOfOrNull {
+            if (it.kind == CommunityDefinitionEvent.KIND) it else null
+        }
+    } else {
+        this.tags.fastFirstNotNullOfOrNull(CommunityTag::parseAddress)
+    }
+
+fun CommentEvent.isCommunityScoped() = hasRootScopeKind(CommunityDefinitionEvent.KIND_STR)
+
+fun CommentEvent.communityScope() = this.tags.fastFirstNotNullOfOrNull(CommunityTag::parseAddress)
+
+fun CommentEvent.communityScopes() = this.tags.mapNotNull(CommunityTag::parseAddress)

quartz/src/main/java/com/vitorpamplona/quartz/nip72ModCommunities/approval/CommunityPostApprovalEvent.kt

@@ -25,22 +25,29 @@ import androidx.compose.runtime.Immutable
 import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder
+import com.vitorpamplona.quartz.nip01Core.core.any
 import com.vitorpamplona.quartz.nip01Core.hints.AddressHintProvider
 import com.vitorpamplona.quartz.nip01Core.hints.EventHintBundle
 import com.vitorpamplona.quartz.nip01Core.hints.EventHintProvider
 import com.vitorpamplona.quartz.nip01Core.hints.PubKeyHintProvider
 import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate
-import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag
-import com.vitorpamplona.quartz.nip01Core.tags.addressables.taggedATags
-import com.vitorpamplona.quartz.nip01Core.tags.addressables.taggedAddresses
-import com.vitorpamplona.quartz.nip01Core.tags.events.ETag
-import com.vitorpamplona.quartz.nip01Core.tags.events.taggedEvents
+import com.vitorpamplona.quartz.nip01Core.tags.addressables.ATag.Companion.isTagged
+import com.vitorpamplona.quartz.nip01Core.tags.addressables.Address
 import com.vitorpamplona.quartz.nip01Core.tags.kinds.kind
 import com.vitorpamplona.quartz.nip01Core.tags.people.PTag
-import com.vitorpamplona.quartz.nip18Reposts.quotes.QTag
 import com.vitorpamplona.quartz.nip31Alts.alt
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedAddressTag
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedAddressTag.Companion.parseAddress
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedAddressTag.Companion.parseAddressId
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedAddressTag.Companion.parseAsHint
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedEventTag
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedEventTag.Companion.parse
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedEventTag.Companion.parseAsHint
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedEventTag.Companion.parseId
 import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.nip72ModCommunities.follow.tags.CommunityTag
 import com.vitorpamplona.quartz.utils.TimeUtils
+import kotlin.collections.mapNotNull
 
 @Immutable
 class CommunityPostApprovalEvent(
@@ -54,13 +61,17 @@ class CommunityPostApprovalEvent(
     EventHintProvider,
     AddressHintProvider,
     PubKeyHintProvider {
-    override fun eventHints() = tags.mapNotNull(ETag::parseAsHint) + tags.mapNotNull(QTag::parseEventAsHint)
+    override fun eventHints() = tags.mapNotNull(ApprovedEventTag::parseAsHint)
 
-    override fun linkedEventIds() = tags.mapNotNull(ETag::parseId) + tags.mapNotNull(QTag::parseEventId)
+    override fun linkedEventIds() = tags.mapNotNull(ApprovedEventTag::parseId)
 
-    override fun addressHints() = tags.mapNotNull(ATag::parseAsHint) + tags.mapNotNull(QTag::parseAddressAsHint)
+    override fun addressHints() =
+        tags.mapNotNull(ApprovedAddressTag::parseAsHint) +
+            tags.mapNotNull(CommunityTag::parseAsHint)
 
-    override fun linkedAddressIds() = tags.mapNotNull(ATag::parseAddressId) + tags.mapNotNull(QTag::parseAddressId)
+    override fun linkedAddressIds() =
+        tags.mapNotNull(ApprovedAddressTag::parseAddressId) +
+            tags.mapNotNull(CommunityTag::parseAddressId)
 
     override fun pubKeyHints() = tags.mapNotNull(PTag::parseAsHint)
 
@@ -77,15 +88,17 @@ class CommunityPostApprovalEvent(
             null
         }
 
-    fun communities() = taggedATags().filter { it.kind == CommunityDefinitionEvent.KIND }
+    fun isForCommunity(communityAddressId: String): Boolean = tags.any(CommunityTag::isTagged, communityAddressId)
 
-    fun communityAddresses() = taggedAddresses().filter { it.kind == CommunityDefinitionEvent.KIND }
+    fun isForCommunity(community: Address): Boolean = isForCommunity(community.toValue())
 
-    fun approvedEvents() = taggedEvents()
+    fun communities(): List<CommunityTag> = tags.mapNotNull(CommunityTag::parse)
 
-    fun approvedATags() = taggedATags().filter { it.kind != CommunityDefinitionEvent.KIND }
+    fun communityAddresses(): List<Address> = tags.mapNotNull(CommunityTag::parseAddress)
 
-    fun approvedAddresses() = taggedAddresses().filter { it.kind != CommunityDefinitionEvent.KIND }
+    fun approvedEvents(): List<HexKey> = tags.mapNotNull(ApprovedEventTag::parseId)
+
+    fun approvedAddresses(): List<Address> = tags.mapNotNull(ApprovedAddressTag::parseAddress)
 
     companion object {
         const val KIND = 4550

quartz/src/main/java/com/vitorpamplona/quartz/nip72ModCommunities/approval/tags/ApprovedAddressTag.kt

@@ -0,0 +1,142 @@
+/**
+ * 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.nip72ModCommunities.approval.tags
+
+import com.vitorpamplona.quartz.nip01Core.core.HexKey
+import com.vitorpamplona.quartz.nip01Core.core.has
+import com.vitorpamplona.quartz.nip01Core.hints.types.AddressHint
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer
+import com.vitorpamplona.quartz.nip01Core.tags.addressables.Address
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.utils.arrayOfNotNull
+import com.vitorpamplona.quartz.utils.bytesUsedInMemory
+import com.vitorpamplona.quartz.utils.ensure
+import com.vitorpamplona.quartz.utils.pointerSizeInBytes
+
+class ApprovedAddressTag(
+    val address: Address,
+    val relayHint: NormalizedRelayUrl? = null,
+) {
+    fun countMemory(): Long = 2 * pointerSizeInBytes + address.countMemory() + (relayHint?.url?.bytesUsedInMemory() ?: 0)
+
+    fun toTag() = Address.assemble(address.kind, address.pubKeyHex, address.dTag)
+
+    fun toTagArray() = assemble(address, relayHint)
+
+    fun toTagIdOnly() = assemble(address, null)
+
+    companion object {
+        const val TAG_NAME = "a"
+
+        @JvmStatic
+        fun isTagged(tag: Array<String>) = tag.has(1) && tag[0] == TAG_NAME && !Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)
+
+        @JvmStatic
+        fun isTagged(
+            tag: Array<String>,
+            addressId: String,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] == addressId
+
+        @JvmStatic
+        fun isTagged(
+            tag: Array<String>,
+            address: ApprovedAddressTag,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] == address.toTag()
+
+        @JvmStatic
+        fun isIn(
+            tag: Array<String>,
+            addressIds: Set<String>,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] in addressIds
+
+        @JvmStatic
+        fun parse(tag: Array<String>): ApprovedAddressTag? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(!Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
+
+            val address = Address.parse(tag[1]) ?: return null
+            val relayHint = tag.getOrNull(2)?.let { RelayUrlNormalizer.normalizeOrNull(it) }
+            return ApprovedAddressTag(address, relayHint)
+        }
+
+        @JvmStatic
+        fun parseValidAddress(tag: Array<String>): String? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(!Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
+            return Address.parse(tag[1])?.toValue()
+        }
+
+        @JvmStatic
+        fun parseAddress(tag: Array<String>): Address? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(tag[1].isNotEmpty()) { return null }
+            val address = Address.parse(tag[1]) ?: return null
+            ensure(address.kind != CommunityDefinitionEvent.KIND) { return null }
+            return address
+        }
+
+        @JvmStatic
+        fun parseAddressId(tag: Array<String>): String? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(!Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
+            return tag[1]
+        }
+
+        @JvmStatic
+        fun parseAsHint(tag: Array<String>): AddressHint? {
+            ensure(tag.has(2)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(!Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
+            ensure(tag[1].contains(':')) { return null }
+            ensure(tag[2].isNotEmpty()) { return null }
+
+            val relayHint = RelayUrlNormalizer.normalizeOrNull(tag[2])
+            ensure(relayHint != null) { return null }
+
+            return AddressHint(tag[1], relayHint)
+        }
+
+        @JvmStatic
+        fun assemble(
+            aTagId: HexKey,
+            relay: NormalizedRelayUrl?,
+        ) = arrayOfNotNull(TAG_NAME, aTagId, relay?.url)
+
+        @JvmStatic
+        fun assemble(
+            address: Address,
+            relay: NormalizedRelayUrl?,
+        ) = arrayOfNotNull(TAG_NAME, address.toValue(), relay?.url)
+
+        @JvmStatic
+        fun assemble(
+            kind: Int,
+            pubKey: String,
+            dTag: String,
+            relay: NormalizedRelayUrl?,
+        ) = assemble(Address.assemble(kind, pubKey, dTag), relay)
+    }
+}

quartz/src/main/java/com/vitorpamplona/quartz/nip72ModCommunities/approval/tags/ApprovedEventTag.kt

@@ -0,0 +1,109 @@
+/**
+ * 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.nip72ModCommunities.approval.tags
+
+import androidx.compose.runtime.Immutable
+import com.vitorpamplona.quartz.nip01Core.core.HexKey
+import com.vitorpamplona.quartz.nip01Core.core.Tag
+import com.vitorpamplona.quartz.nip01Core.core.has
+import com.vitorpamplona.quartz.nip01Core.hints.types.EventIdHint
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer
+import com.vitorpamplona.quartz.nip01Core.tags.events.EventReference
+import com.vitorpamplona.quartz.utils.Hex
+import com.vitorpamplona.quartz.utils.arrayOfNotNull
+import com.vitorpamplona.quartz.utils.ensure
+
+@Immutable
+class ApprovedEventTag(
+    val ref: EventReference,
+) {
+    constructor(eventId: String, relayHint: NormalizedRelayUrl?, pubkey: String?) : this(EventReference(eventId, pubkey, relayHint))
+
+    fun toTagArray() = assemble(ref)
+
+    companion object {
+        const val TAG_NAME = "e"
+
+        @JvmStatic
+        fun match(tag: Tag) = tag.has(1) && tag[0] == TAG_NAME && tag[1].isNotEmpty()
+
+        @JvmStatic
+        fun isTagged(
+            tag: Array<String>,
+            eventId: String,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] == eventId
+
+        @JvmStatic
+        fun isIn(
+            tag: Array<String>,
+            eventIds: Set<String>,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] in eventIds
+
+        @JvmStatic
+        fun parse(tag: Array<String>): ApprovedEventTag? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(tag[1].length == 64) { return null }
+            return ApprovedEventTag(tag[1], tag.getOrNull(2)?.let { RelayUrlNormalizer.normalizeOrNull(it) }, tag.getOrNull(3))
+        }
+
+        @JvmStatic
+        fun parseId(tag: Array<String>): String? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(tag[1].length == 64) { return null }
+            return tag[1]
+        }
+
+        @JvmStatic
+        fun parseValidId(tag: Array<String>): String? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(tag[1].length == 64) { return null }
+            ensure(Hex.isHex(tag[1])) { return null }
+            return tag[1]
+        }
+
+        @JvmStatic
+        fun parseAsHint(tag: Array<String>): EventIdHint? {
+            ensure(tag.has(2)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(tag[1].length == 64) { return null }
+            ensure(tag[2].isNotEmpty()) { return null }
+
+            val relayHint = RelayUrlNormalizer.normalizeOrNull(tag[2])
+            ensure(relayHint != null) { return null }
+
+            return EventIdHint(tag[1], relayHint)
+        }
+
+        @JvmStatic
+        fun assemble(
+            eventId: HexKey,
+            relay: NormalizedRelayUrl?,
+            pubkey: String?,
+        ) = arrayOfNotNull(TAG_NAME, eventId, relay?.url, pubkey)
+
+        @JvmStatic
+        fun assemble(ref: EventReference) = assemble(ref.eventId, ref.relayHint, ref.author)
+    }
+}

quartz/src/main/java/com/vitorpamplona/quartz/nip72ModCommunities/definition/CommunityDefinitionEvent.kt

@@ -80,7 +80,7 @@ class CommunityDefinitionEvent(
 
     fun moderators() = tags.mapNotNull(ModeratorTag::parse)
 
-    fun moderatorKeys() = tags.mapNotNull(ModeratorTag::parseKey)
+    fun moderatorKeys() = tags.mapNotNull(ModeratorTag::parseKey).plus(pubKey)
 
     fun relays() = tags.mapNotNull(RelayTag::parse)
 
@@ -88,6 +88,7 @@ class CommunityDefinitionEvent(
 
     companion object {
         const val KIND = 34550
+        const val KIND_STR = "34550"
         const val ALT_DESCRIPTION = "Community definition"
 
         fun build(

quartz/src/main/java/com/vitorpamplona/quartz/nip72ModCommunities/follow/tags/CommunityTag.kt

@@ -26,6 +26,7 @@ import com.vitorpamplona.quartz.nip01Core.hints.types.AddressHint
 import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
 import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer
 import com.vitorpamplona.quartz.nip01Core.tags.addressables.Address
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.utils.arrayOfNotNull
 import com.vitorpamplona.quartz.utils.bytesUsedInMemory
 import com.vitorpamplona.quartz.utils.ensure
@@ -47,7 +48,7 @@ class CommunityTag(
         const val TAG_NAME = "a"
 
         @JvmStatic
-        fun isTagged(tag: Array<String>) = tag.has(1) && tag[0] == TAG_NAME && tag[1].isNotEmpty()
+        fun isTagged(tag: Array<String>) = tag.has(1) && tag[0] == TAG_NAME && Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)
 
         @JvmStatic
         fun isTagged(
@@ -61,12 +62,6 @@ class CommunityTag(
             address: CommunityTag,
         ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] == address.toTag()
 
-        @JvmStatic
-        fun isIn(
-            tag: Array<String>,
-            addressIds: Set<String>,
-        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] in addressIds
-
         @JvmStatic
         fun isTaggedWithKind(
             tag: Array<String>,
@@ -74,26 +69,27 @@ class CommunityTag(
         ) = tag.has(1) && tag[0] == TAG_NAME && Address.isOfKind(tag[1], kind)
 
         @JvmStatic
-        fun parse(
-            aTagId: String,
-            relay: String?,
-        ) = Address.parse(aTagId)?.let {
-            CommunityTag(it, relay?.let { RelayUrlNormalizer.normalizeOrNull(it) })
-        }
+        fun isIn(
+            tag: Array<String>,
+            addressIds: Set<String>,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] in addressIds
 
         @JvmStatic
         fun parse(tag: Array<String>): CommunityTag? {
             ensure(tag.has(1)) { return null }
             ensure(tag[0] == TAG_NAME) { return null }
-            ensure(tag[1].isNotEmpty()) { return null }
-            return parse(tag[1], tag.getOrNull(2))
+            ensure(Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
+
+            val address = Address.parse(tag[1]) ?: return null
+            val relayHint = tag.getOrNull(2)?.let { RelayUrlNormalizer.normalizeOrNull(it) }
+            return CommunityTag(address, relayHint)
         }
 
         @JvmStatic
         fun parseValidAddress(tag: Array<String>): String? {
             ensure(tag.has(1)) { return null }
             ensure(tag[0] == TAG_NAME) { return null }
-            ensure(tag[1].isNotEmpty()) { return null }
+            ensure(Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
             return Address.parse(tag[1])?.toValue()
         }
 
@@ -102,14 +98,16 @@ class CommunityTag(
             ensure(tag.has(1)) { return null }
             ensure(tag[0] == TAG_NAME) { return null }
             ensure(tag[1].isNotEmpty()) { return null }
-            return Address.parse(tag[1])
+            val address = Address.parse(tag[1]) ?: return null
+            ensure(address.kind == CommunityDefinitionEvent.KIND) { return null }
+            return address
         }
 
         @JvmStatic
         fun parseAddressId(tag: Array<String>): String? {
             ensure(tag.has(1)) { return null }
             ensure(tag[0] == TAG_NAME) { return null }
-            ensure(tag[1].isNotEmpty()) { return null }
+            ensure(Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
             return tag[1]
         }
 
@@ -117,8 +115,7 @@ class CommunityTag(
         fun parseAsHint(tag: Array<String>): AddressHint? {
             ensure(tag.has(2)) { return null }
             ensure(tag[0] == TAG_NAME) { return null }
-            ensure(tag[1].isNotEmpty()) { return null }
-            ensure(tag[1].contains(':')) { return null }
+            ensure(Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
             ensure(tag[2].isNotEmpty()) { return null }
 
             val relayHint = RelayUrlNormalizer.normalizeOrNull(tag[2])