Merge pull request #2069 from vitorpamplona/claude/nip-53-compliance-mh5pD

Add support for NIP-53 Meeting Spaces and Meeting Rooms

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

@@ -163,6 +163,9 @@ import com.vitorpamplona.quartz.nip52Calendar.appt.time.CalendarTimeSlotEvent
 import com.vitorpamplona.quartz.nip52Calendar.calendar.CalendarEvent
 import com.vitorpamplona.quartz.nip52Calendar.rsvp.CalendarRSVPEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.presence.MeetingRoomPresenceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.nip54Wiki.WikiNoteEvent
 import com.vitorpamplona.quartz.nip56Reports.ReportEvent
@@ -2623,6 +2626,9 @@ object LocalCache : ILocalCache, ICacheProvider {
                 is LabeledBookmarkListEvent -> consumeBaseReplaceable(event, relay, wasVerified)
                 is LiveActivitiesEvent -> consume(event, relay, wasVerified)
                 is LiveActivitiesChatMessageEvent -> consume(event, relay, wasVerified)
+                is MeetingSpaceEvent -> consumeBaseReplaceable(event, relay, wasVerified)
+                is MeetingRoomEvent -> consumeBaseReplaceable(event, relay, wasVerified)
+                is MeetingRoomPresenceEvent -> consumeBaseReplaceable(event, relay, wasVerified)
                 is LnZapEvent -> consume(event, relay, wasVerified)
                 is LnZapRequestEvent -> consume(event, relay, wasVerified)
                 is NIP90StatusEvent -> consumeRegularEvent(event, relay, wasVerified)

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

@@ -138,6 +138,8 @@ import com.vitorpamplona.amethyst.ui.note.types.RenderLiveChessChallenge
 import com.vitorpamplona.amethyst.ui.note.types.RenderLiveChessGameEnd
 import com.vitorpamplona.amethyst.ui.note.types.RenderLnZap
 import com.vitorpamplona.amethyst.ui.note.types.RenderLongFormContent
+import com.vitorpamplona.amethyst.ui.note.types.RenderMeetingRoomEvent
+import com.vitorpamplona.amethyst.ui.note.types.RenderMeetingSpaceEvent
 import com.vitorpamplona.amethyst.ui.note.types.RenderMintRecommendation
 import com.vitorpamplona.amethyst.ui.note.types.RenderNIP90ContentDiscoveryResponse
 import com.vitorpamplona.amethyst.ui.note.types.RenderNIP90Status
@@ -251,6 +253,8 @@ import com.vitorpamplona.quartz.nip51Lists.relaySets.RelaySetEvent
 import com.vitorpamplona.quartz.nip52Calendar.appt.day.CalendarDateSlotEvent
 import com.vitorpamplona.quartz.nip52Calendar.appt.time.CalendarTimeSlotEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.nip54Wiki.WikiNoteEvent
 import com.vitorpamplona.quartz.nip56Reports.ReportEvent
@@ -987,6 +991,14 @@ private fun RenderNoteRow(
             RenderLiveActivityEvent(baseNote, accountViewModel, nav)
         }
 
+        is MeetingSpaceEvent -> {
+            RenderMeetingSpaceEvent(baseNote, accountViewModel, nav)
+        }
+
+        is MeetingRoomEvent -> {
+            RenderMeetingRoomEvent(baseNote, accountViewModel, nav)
+        }
+
         is GitRepositoryEvent -> {
             RenderGitRepositoryEvent(baseNote, accountViewModel, nav)
         }

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

@@ -0,0 +1,328 @@
+/*
+ * 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.note.types
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+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.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.service.relayClient.reqCommand.event.observeNote
+import com.vitorpamplona.amethyst.ui.actions.CrossfadeIfEnabled
+import com.vitorpamplona.amethyst.ui.navigation.navs.INav
+import com.vitorpamplona.amethyst.ui.navigation.routes.routeFor
+import com.vitorpamplona.amethyst.ui.note.ClickableUserPicture
+import com.vitorpamplona.amethyst.ui.note.UsernameDisplay
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.publicChannels.nip53LiveActivities.LiveFlag
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.publicChannels.nip53LiveActivities.ScheduledFlag
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.home.CrossfadeCheckIfVideoIsOnline
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.equalImmutableLists
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.amethyst.ui.theme.SmallBorder
+import com.vitorpamplona.amethyst.ui.theme.StdHorzSpacer
+import com.vitorpamplona.amethyst.ui.theme.placeholderText
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.ParticipantTag
+import com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.StatusTag
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.persistentListOf
+import java.util.Locale
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.tags.StatusTag as MeetingSpaceStatusTag
+
+@Composable
+fun RenderMeetingSpaceEvent(
+    baseNote: Note,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    Row(modifier = Modifier.padding(top = 5.dp)) {
+        Column(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalAlignment = Alignment.CenterHorizontally,
+        ) {
+            RenderMeetingSpaceEventInner(baseNote = baseNote, accountViewModel, nav)
+        }
+    }
+}
+
+@Composable
+fun RenderMeetingSpaceEventInner(
+    baseNote: Note,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    val noteEvent = baseNote.event as? MeetingSpaceEvent ?: return
+
+    val eventUpdates by observeNote(baseNote, accountViewModel)
+
+    val roomName = remember(eventUpdates) { noteEvent.room() }
+    val summary = remember(eventUpdates) { noteEvent.summary() }
+    val status = remember(eventUpdates) { noteEvent.status() }
+    val participants = remember(eventUpdates) { noteEvent.participants() }
+
+    Row(
+        verticalAlignment = Alignment.CenterVertically,
+        modifier =
+            Modifier
+                .padding(vertical = 5.dp)
+                .fillMaxWidth(),
+    ) {
+        roomName?.let {
+            Text(
+                text = it,
+                fontWeight = FontWeight.Bold,
+                maxLines = 3,
+                overflow = TextOverflow.Ellipsis,
+                modifier = Modifier.weight(1f),
+            )
+        }
+
+        Spacer(modifier = StdHorzSpacer)
+
+        CrossfadeIfEnabled(targetState = status, label = "MeetingSpaceStatus", accountViewModel = accountViewModel) {
+            when (it) {
+                MeetingSpaceStatusTag.STATUS.OPEN -> {
+                    MeetingSpaceOpenFlag()
+                }
+
+                MeetingSpaceStatusTag.STATUS.PRIVATE -> {
+                    MeetingSpacePrivateFlag()
+                }
+
+                MeetingSpaceStatusTag.STATUS.CLOSED -> {
+                    MeetingSpaceClosedFlag()
+                }
+
+                null -> {}
+            }
+        }
+    }
+
+    summary?.let {
+        Text(
+            text = it,
+            maxLines = 3,
+            overflow = TextOverflow.Ellipsis,
+            color = MaterialTheme.colorScheme.placeholderText,
+            modifier =
+                Modifier
+                    .fillMaxWidth()
+                    .padding(vertical = 5.dp),
+        )
+    }
+
+    RenderParticipants(participants, accountViewModel, nav)
+}
+
+@Composable
+fun RenderMeetingRoomEvent(
+    baseNote: Note,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    Row(modifier = Modifier.padding(top = 5.dp)) {
+        Column(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalAlignment = Alignment.CenterHorizontally,
+        ) {
+            RenderMeetingRoomEventInner(baseNote = baseNote, accountViewModel, nav)
+        }
+    }
+}
+
+@Composable
+fun RenderMeetingRoomEventInner(
+    baseNote: Note,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    val noteEvent = baseNote.event as? MeetingRoomEvent ?: return
+
+    val eventUpdates by observeNote(baseNote, accountViewModel)
+
+    val subject = remember(eventUpdates) { noteEvent.title() }
+    val media = remember(eventUpdates) { noteEvent.streaming() }
+    val status = remember(eventUpdates) { noteEvent.status() }
+    val starts = remember(eventUpdates) { noteEvent.starts() }
+    val participants = remember(eventUpdates) { noteEvent.participants() }
+
+    Row(
+        verticalAlignment = Alignment.CenterVertically,
+        modifier =
+            Modifier
+                .padding(vertical = 5.dp)
+                .fillMaxWidth(),
+    ) {
+        subject?.let {
+            Text(
+                text = it,
+                fontWeight = FontWeight.Bold,
+                maxLines = 3,
+                overflow = TextOverflow.Ellipsis,
+                modifier = Modifier.weight(1f),
+            )
+        }
+
+        Spacer(modifier = StdHorzSpacer)
+
+        CrossfadeIfEnabled(targetState = status, label = "MeetingRoomStatus", accountViewModel = accountViewModel) {
+            when (it) {
+                StatusTag.STATUS.LIVE -> {
+                    media?.let {
+                        CrossfadeCheckIfVideoIsOnline(it, accountViewModel) {
+                            LiveFlag()
+                        }
+                    } ?: LiveFlag()
+                }
+
+                StatusTag.STATUS.PLANNED -> {
+                    ScheduledFlag(starts)
+                }
+
+                StatusTag.STATUS.ENDED -> {}
+
+                null -> {}
+            }
+        }
+    }
+
+    RenderParticipants(participants, accountViewModel, nav)
+}
+
+@Composable
+private fun RenderParticipants(
+    participants: List<ParticipantTag>,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    var participantUsers by remember {
+        mutableStateOf<ImmutableList<Pair<ParticipantTag, User>>>(
+            persistentListOf(),
+        )
+    }
+
+    LaunchedEffect(key1 = participants) {
+        accountViewModel.loadParticipants(participants) { newParticipantUsers ->
+            if (!equalImmutableLists(newParticipantUsers, participantUsers)) {
+                participantUsers = newParticipantUsers
+            }
+        }
+    }
+
+    participantUsers.forEach {
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            modifier =
+                Modifier
+                    .padding(vertical = 5.dp)
+                    .clickable { nav.nav(routeFor(it.second)) },
+        ) {
+            ClickableUserPicture(it.second, 25.dp, accountViewModel)
+            Spacer(StdHorzSpacer)
+            UsernameDisplay(it.second, Modifier.weight(1f), accountViewModel = accountViewModel)
+            Spacer(StdHorzSpacer)
+            it.first.role?.let {
+                Text(
+                    text =
+                        it.replaceFirstChar {
+                            if (it.isLowerCase()) it.titlecase(Locale.getDefault()) else it.toString()
+                        },
+                    color = MaterialTheme.colorScheme.placeholderText,
+                    maxLines = 1,
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun MeetingSpaceOpenFlag() {
+    Text(
+        text = stringRes(id = R.string.meeting_space_open_tag),
+        color = Color.White,
+        fontWeight = FontWeight.Bold,
+        fontSize = 16.sp,
+        modifier =
+            remember {
+                Modifier
+                    .clip(SmallBorder)
+                    .background(Color(0xFF4CAF50))
+                    .padding(horizontal = 5.dp)
+            },
+    )
+}
+
+@Composable
+fun MeetingSpacePrivateFlag() {
+    Text(
+        text = stringRes(id = R.string.meeting_space_private_tag),
+        color = Color.White,
+        fontWeight = FontWeight.Bold,
+        fontSize = 16.sp,
+        modifier =
+            remember {
+                Modifier
+                    .clip(SmallBorder)
+                    .background(Color(0xFFFF9800))
+                    .padding(horizontal = 5.dp)
+            },
+    )
+}
+
+@Composable
+fun MeetingSpaceClosedFlag() {
+    Text(
+        text = stringRes(id = R.string.meeting_space_closed_tag),
+        color = Color.White,
+        fontWeight = FontWeight.Bold,
+        fontSize = 16.sp,
+        modifier =
+            remember {
+                Modifier
+                    .clip(SmallBorder)
+                    .background(Color.Black)
+                    .padding(horizontal = 5.dp)
+            },
+    )
+}

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

@@ -46,6 +46,8 @@ import com.vitorpamplona.amethyst.ui.theme.StdPadding
 import com.vitorpamplona.quartz.nip23LongContent.LongTextNoteEvent
 import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelCreateEvent
 import com.vitorpamplona.quartz.nip51Lists.followList.FollowListEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.nip89AppHandlers.definition.AppDefinitionEvent
@@ -149,6 +151,8 @@ fun InnerChannelCardWithReactions(
 ) {
     when (baseNote.event) {
         is LiveActivitiesEvent -> InnerCardRow(baseNote, accountViewModel, nav)
+        is MeetingSpaceEvent -> InnerCardRow(baseNote, accountViewModel, nav)
+        is MeetingRoomEvent -> InnerCardRow(baseNote, accountViewModel, nav)
         is CommunityDefinitionEvent -> InnerCardRow(baseNote, accountViewModel, nav)
         is ChannelCreateEvent -> InnerCardRow(baseNote, accountViewModel, nav)
         is ClassifiedsEvent -> InnerCardBox(baseNote, accountViewModel, nav)
@@ -202,6 +206,8 @@ private fun RenderNoteRow(
 ) {
     when (baseNote.event) {
         is LiveActivitiesEvent -> RenderLiveActivityThumb(baseNote, accountViewModel, nav)
+        is MeetingSpaceEvent -> RenderLiveActivityThumb(baseNote, accountViewModel, nav)
+        is MeetingRoomEvent -> RenderLiveActivityThumb(baseNote, accountViewModel, nav)
         is CommunityDefinitionEvent -> RenderCommunitiesThumb(baseNote, accountViewModel, nav)
         is ChannelCreateEvent -> RenderPublicChatChannelThumb(baseNote, accountViewModel, nav)
         is AppDefinitionEvent -> RenderContentDVMThumb(baseNote, accountViewModel, nav)

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/nip53LiveActivities/DiscoverLiveFeedFilter.kt

@@ -35,6 +35,8 @@ import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.muted.MutedAuthors
 import com.vitorpamplona.amethyst.service.OnlineChecker
 import com.vitorpamplona.amethyst.ui.dal.AdditiveFeedFilter
 import com.vitorpamplona.amethyst.ui.dal.FilterByListParams
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.StatusTag
 
@@ -75,7 +77,8 @@ open class DiscoverLiveFeedFilter(
 
         return collection.filterTo(HashSet()) {
             val noteEvent = it.event
-            noteEvent is LiveActivitiesEvent && filterParams.match(noteEvent, it.relays)
+            (noteEvent is LiveActivitiesEvent || noteEvent is MeetingSpaceEvent || noteEvent is MeetingRoomEvent) &&
+                filterParams.match(noteEvent, it.relays)
         }
     }
 
@@ -106,33 +109,61 @@ open class DiscoverLiveFeedFilter(
         return items
             .sortedWith(
                 compareBy(
-                    { convertStatusToOrder((it.event as? LiveActivitiesEvent)) },
+                    { convertStatusToOrder(it.event) },
                     { participantCounts[it] },
                     { allParticipants[it] },
-                    { (it.event as? LiveActivitiesEvent)?.starts() ?: it.createdAt() },
+                    {
+                        when (val e = it.event) {
+                            is LiveActivitiesEvent -> e.starts() ?: it.createdAt()
+                            is MeetingRoomEvent -> e.starts() ?: it.createdAt()
+                            else -> it.createdAt()
+                        }
+                    },
                     { it.idHex },
                 ),
             ).reversed()
     }
 
-    fun convertStatusToOrder(event: LiveActivitiesEvent?): Int {
+    fun convertStatusToOrder(event: com.vitorpamplona.quartz.nip01Core.core.Event?): Int {
         if (event == null) return 0
-        val url = event.streaming() ?: return 0
+        return when (event) {
-        return when (event.status()) {
+            is LiveActivitiesEvent -> {
-            StatusTag.STATUS.LIVE -> {
+                val url = event.streaming() ?: return 0
-                if (OnlineChecker.isCachedAndOffline(url)) {
+                when (event.status()) {
-                    0
+                    StatusTag.STATUS.LIVE -> {
-                } else {
+                        if (OnlineChecker.isCachedAndOffline(url)) 0 else 2
-                    2
+                    }
+
+                    StatusTag.STATUS.PLANNED -> {
+                        1
+                    }
+
+                    StatusTag.STATUS.ENDED -> {
+                        0
+                    }
+
+                    else -> {
+                        0
+                    }
                 }
             }
 
-            StatusTag.STATUS.PLANNED -> {
+            is MeetingRoomEvent -> {
-                1
+                when (event.status()) {
+                    StatusTag.STATUS.LIVE -> 2
+                    StatusTag.STATUS.PLANNED -> 1
+                    StatusTag.STATUS.ENDED -> 0
+                    else -> 0
+                }
             }
 
-            StatusTag.STATUS.ENDED -> {
+            is MeetingSpaceEvent -> {
-                0
+                when (event.status()) {
+                    com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.tags.StatusTag.STATUS.OPEN -> 2
+                    com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.tags.StatusTag.STATUS.PRIVATE -> 1
+                    com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.tags.StatusTag.STATUS.CLOSED -> 0
+                    else -> 0
+                }
             }
 
             else -> {

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/nip53LiveActivities/LiveActivityCard.kt

@@ -69,6 +69,8 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.equalImmutabl
 import com.vitorpamplona.amethyst.ui.theme.DoubleVertSpacer
 import com.vitorpamplona.amethyst.ui.theme.QuoteBorder
 import com.vitorpamplona.quartz.nip01Core.core.Address
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.ParticipantTag
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.StatusTag
@@ -98,19 +100,69 @@ fun RenderLiveActivityThumb(
     nav: INav,
 ) {
     val card by observeNoteAndMap(baseNote, accountViewModel) {
-        val noteEvent = it.event as? LiveActivitiesEvent
+        when (val noteEvent = it.event) {
+            is LiveActivitiesEvent -> {
+                LiveActivityCard(
+                    id = noteEvent.address(),
+                    name = noteEvent.dTag(),
+                    cover = noteEvent.image()?.ifBlank { null },
+                    media = noteEvent.streaming(),
+                    subject = noteEvent.title()?.ifBlank { null },
+                    content = noteEvent.summary(),
+                    participants = noteEvent.participants().toImmutableList(),
+                    status = noteEvent.status(),
+                    starts = noteEvent.starts(),
+                )
+            }
 
-        LiveActivityCard(
+            is MeetingRoomEvent -> {
-            id = noteEvent?.address(),
+                LiveActivityCard(
-            name = noteEvent?.dTag() ?: "",
+                    id = noteEvent.address(),
-            cover = noteEvent?.image()?.ifBlank { null },
+                    name = noteEvent.dTag(),
-            media = noteEvent?.streaming(),
+                    cover = noteEvent.image()?.ifBlank { null },
-            subject = noteEvent?.title()?.ifBlank { null },
+                    media = noteEvent.streaming(),
-            content = noteEvent?.summary(),
+                    subject = noteEvent.title()?.ifBlank { null },
-            participants = noteEvent?.participants()?.toImmutableList() ?: persistentListOf(),
+                    content = noteEvent.summary(),
-            status = noteEvent?.status(),
+                    participants = noteEvent.participants().toImmutableList(),
-            starts = noteEvent?.starts(),
+                    status = noteEvent.status(),
-        )
+                    starts = noteEvent.starts(),
+                )
+            }
+
+            is MeetingSpaceEvent -> {
+                LiveActivityCard(
+                    id = noteEvent.address(),
+                    name = noteEvent.dTag(),
+                    cover = noteEvent.image()?.ifBlank { null },
+                    media = null,
+                    subject = noteEvent.room()?.ifBlank { null },
+                    content = noteEvent.summary(),
+                    participants = noteEvent.participants().toImmutableList(),
+                    status =
+                        when (noteEvent.status()) {
+                            com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.tags.StatusTag.STATUS.OPEN -> StatusTag.STATUS.LIVE
+                            com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.tags.StatusTag.STATUS.PRIVATE -> StatusTag.STATUS.PLANNED
+                            com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.tags.StatusTag.STATUS.CLOSED -> StatusTag.STATUS.ENDED
+                            else -> null
+                        },
+                    starts = null,
+                )
+            }
+
+            else -> {
+                LiveActivityCard(
+                    id = null,
+                    name = "",
+                    cover = null,
+                    media = null,
+                    subject = null,
+                    content = null,
+                    participants = persistentListOf(),
+                    status = null,
+                    starts = null,
+                )
+            }
+        }
     }
 
     RenderLiveActivityThumb(

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/nip53LiveActivities/subassemblies/FilterLiveActivitiesByAllCommunities.kt

@@ -27,6 +27,8 @@ 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.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
 
@@ -47,7 +49,7 @@ fun filterLiveActivitiesAllCommunities(
                     tags =
                         mapOf(
                             "a" to communityList,
-                            "k" to listOf(LiveActivitiesChatMessageEvent.KIND.toString(), LiveActivitiesEvent.KIND.toString()),
+                            "k" to listOf(LiveActivitiesChatMessageEvent.KIND.toString(), LiveActivitiesEvent.KIND.toString(), MeetingSpaceEvent.KIND.toString(), MeetingRoomEvent.KIND.toString()),
                         ),
                     limit = 300,
                     since = since,
@@ -59,7 +61,7 @@ fun filterLiveActivitiesAllCommunities(
             filter =
                 Filter(
                     tags = mapOf("k" to listOf("5300"), "a" to communityList),
-                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND),
+                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND, MeetingSpaceEvent.KIND, MeetingRoomEvent.KIND),
                     limit = 300,
                     since = since,
                 ),

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/nip53LiveActivities/subassemblies/FilterLiveActivitiesByAuthors.kt

@@ -28,6 +28,8 @@ 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.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 
 fun filterLiveActivitiesAuthors(
@@ -42,7 +44,7 @@ fun filterLiveActivitiesAuthors(
             filter =
                 Filter(
                     authors = authorList,
-                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND),
+                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND, MeetingSpaceEvent.KIND, MeetingRoomEvent.KIND),
                     limit = 300,
                     since = since,
                 ),
@@ -53,7 +55,7 @@ fun filterLiveActivitiesAuthors(
             filter =
                 Filter(
                     tags = mapOf("p" to authorList),
-                    kinds = listOf(LiveActivitiesEvent.KIND),
+                    kinds = listOf(LiveActivitiesEvent.KIND, MeetingSpaceEvent.KIND, MeetingRoomEvent.KIND),
                     limit = 100,
                     since = since,
                 ),

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/nip53LiveActivities/subassemblies/FilterLiveActivitiesByCommunity.kt

@@ -26,6 +26,8 @@ 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.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.approval.CommunityPostApprovalEvent
 
@@ -47,7 +49,7 @@ fun filterLiveActivitiesByCommunity(
                     tags =
                         mapOf(
                             "a" to listOf(community),
-                            "k" to listOf(LiveActivitiesChatMessageEvent.KIND.toString(), LiveActivitiesEvent.KIND.toString()),
+                            "k" to listOf(LiveActivitiesChatMessageEvent.KIND.toString(), LiveActivitiesEvent.KIND.toString(), MeetingSpaceEvent.KIND.toString(), MeetingRoomEvent.KIND.toString()),
                         ),
                     limit = 300,
                     since = since,
@@ -60,7 +62,7 @@ fun filterLiveActivitiesByCommunity(
                 Filter(
                     authors = authors,
                     tags = mapOf("k" to listOf("5300"), "a" to listOf(community)),
-                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND),
+                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND, MeetingSpaceEvent.KIND, MeetingRoomEvent.KIND),
                     limit = 300,
                     since = since,
                 ),

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/nip53LiveActivities/subassemblies/FilterLiveActivitiesByGeohash.kt

@@ -26,6 +26,8 @@ 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.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 
 fun filterLiveActivitiesByGeohash(
@@ -42,7 +44,7 @@ fun filterLiveActivitiesByGeohash(
             relay = relay,
             filter =
                 Filter(
-                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND),
+                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND, MeetingSpaceEvent.KIND, MeetingRoomEvent.KIND),
                     tags = mapOf("g" to geoHashes),
                     limit = 300,
                     since = since,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/nip53LiveActivities/subassemblies/FilterLiveActivitiesByHashtag.kt

@@ -27,6 +27,8 @@ import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
 import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
 import com.vitorpamplona.quartz.nip01Core.tags.hashtags.hashtagAlts
 import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 
 fun filterLiveActivitiesByHashtag(
@@ -43,7 +45,7 @@ fun filterLiveActivitiesByHashtag(
             relay = relay,
             filter =
                 Filter(
-                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND),
+                    kinds = listOf(LiveActivitiesChatMessageEvent.KIND, LiveActivitiesEvent.KIND, MeetingSpaceEvent.KIND, MeetingRoomEvent.KIND),
                     tags = mapOf("t" to hashtags),
                     limit = 300,
                     since = since,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/discover/nip53LiveActivities/subassemblies/FilterLiveActivitiesGlobal.kt

@@ -25,6 +25,8 @@ import com.vitorpamplona.amethyst.service.relays.SincePerRelayMap
 import com.vitorpamplona.quartz.nip01Core.relay.client.pool.RelayBasedFilter
 import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
 import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.utils.TimeUtils
 
@@ -43,7 +45,7 @@ fun filterLiveActivitiesGlobal(
                     relay = it.key,
                     filter =
                         Filter(
-                            kinds = listOf(LiveActivitiesEvent.KIND),
+                            kinds = listOf(LiveActivitiesEvent.KIND, MeetingSpaceEvent.KIND, MeetingRoomEvent.KIND),
                             limit = 30,
                             since = since ?: TimeUtils.oneWeekAgo(),
                         ),

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

@@ -919,6 +919,9 @@
 
     <string name="live_stream_is_offline">Livestream is Offline</string>
     <string name="live_stream_has_ended">Livestream Ended</string>
+    <string name="meeting_space_open_tag">OPEN</string>
+    <string name="meeting_space_private_tag">PRIVATE</string>
+    <string name="meeting_space_closed_tag">CLOSED</string>
     <string name="are_you_sure_you_want_to_log_out">Logging out deletes all your local information. Make sure to have your private keys backed up to avoid losing your account. Do you want to continue?</string>
     <string name="followed_tags">Followed Tags</string>
 

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/search/KindRegistry.kt

@@ -26,6 +26,8 @@ import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
 import com.vitorpamplona.quartz.nip23LongContent.LongTextNoteEvent
 import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelCreateEvent
 import com.vitorpamplona.quartz.nip28PublicChat.admin.ChannelMetadataEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.streaming.LiveActivitiesEvent
 import com.vitorpamplona.quartz.nip54Wiki.WikiNoteEvent
 import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
@@ -56,7 +58,7 @@ object KindRegistry {
             "repost" to listOf(RepostEvent.KIND),
             "profile" to listOf(MetadataEvent.KIND),
             "channel" to listOf(ChannelCreateEvent.KIND, ChannelMetadataEvent.KIND),
-            "live" to listOf(LiveActivitiesEvent.KIND),
+            "live" to listOf(LiveActivitiesEvent.KIND, MeetingSpaceEvent.KIND, MeetingRoomEvent.KIND),
             "community" to listOf(CommunityDefinitionEvent.KIND),
             "wiki" to listOf(WikiNoteEvent.KIND),
             "classified" to listOf(ClassifiedsEvent.KIND),

quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/nip53LiveActivities/streaming/tags/ParticipantTag.kt

@@ -37,6 +37,7 @@ enum class ROLE(
     HOST("host"),
     MODERATOR("moderator"),
     SPEAKER("speaker"),
+    PARTICIPANT("participant"),
 }
 
 @Immutable
@@ -58,7 +59,7 @@ data class ParticipantTag(
             ensure(tag.has(3)) { return false }
             ensure(tag[0] == TAG_NAME) { return false }
             ensure(tag[1].length == 64) { return false }
-            ensure(tag[3] == ROLE.HOST.code) { return false }
+            ensure(tag[3].equals(ROLE.HOST.code, ignoreCase = true)) { return false }
             return true
         }
 
@@ -76,7 +77,7 @@ data class ParticipantTag(
             ensure(tag.has(3)) { return null }
             ensure(tag[0] == TAG_NAME) { return null }
             ensure(tag[1].length == 64) { return null }
-            ensure(tag[3] == ROLE.HOST.code) { return null }
+            ensure(tag[3].equals(ROLE.HOST.code, ignoreCase = true)) { return null }
 
             val hint = RelayUrlNormalizer.normalizeOrNull(tag[2])