Adjusts the roudabout way of making the chat screen

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/chat/NestChatPanel.kt

@@ -45,13 +45,11 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.viewmodels.NestViewModel
-import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.ui.navigation.navs.BouncingIntentNav
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.chats.feed.ChatroomMessageCompose
 import com.vitorpamplona.amethyst.ui.stringRes
-import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import androidx.lifecycle.viewmodel.compose.viewModel as composeViewModel
 
@@ -112,6 +110,7 @@ internal fun ColumnScope.NestChatPanel(
                     accountViewModel = accountViewModel,
                     nav = nav,
                     onWantsToReply = nestScreenModel::reply,
+                    onWantsToEditDraft = nestScreenModel::editFromDraft,
                 )
             }
         }
@@ -129,11 +128,12 @@ internal fun ColumnScope.NestChatPanel(
 
 @Composable
 private fun NestChatMessageList(
-    messages: List<LiveActivitiesChatMessageEvent>,
+    messages: List<Note>,
     routeForLastRead: String,
     accountViewModel: AccountViewModel,
     nav: BouncingIntentNav,
     onWantsToReply: (Note) -> Unit,
+    onWantsToEditDraft: (Note) -> Unit,
 ) {
     val listState = rememberLazyListState()
 
@@ -150,33 +150,23 @@ private fun NestChatMessageList(
         }
     }
 
-    // viewModel.chat is sorted ascending by created_at (oldest first).
-    // reverseLayout=true puts index 0 at the bottom, so reverse the
-    // list here to keep newest-at-bottom rendering — same behavior
-    // LiveStream chat ships in ChatFeedLoaded.
-    val reversed = remember(messages) { messages.asReversed() }
-
     LazyColumn(
         modifier = Modifier.fillMaxSize(),
         state = listState,
         reverseLayout = true,
     ) {
         items(
-            items = reversed,
-            key = { it.id },
-            contentType = { it.kind },
-        ) { event ->
-            val note = remember(event.id) { LocalCache.getOrCreateNote(event.id) }
+            items = messages,
+            key = { it.idHex },
+        ) { note ->
             ChatroomMessageCompose(
                 baseNote = note,
                 routeForLastRead = routeForLastRead,
                 accountViewModel = accountViewModel,
                 nav = nav,
                 onWantsToReply = onWantsToReply,
-                onWantsToEditDraft = NEST_CHAT_NO_OP_NOTE,
+                onWantsToEditDraft = onWantsToEditDraft,
             )
         }
     }
 }
-
-private val NEST_CHAT_NO_OP_NOTE: (Note) -> Unit = {}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/lifecycle/NestRoomEventCollectors.kt

@@ -111,8 +111,8 @@ private fun ChatCollector(
                 kinds = listOf(LiveActivitiesChatMessageEvent.KIND),
                 tags = mapOf("a" to listOf(roomATag)),
             )
-        LocalCache.observeEvents<LiveActivitiesChatMessageEvent>(filter).collect { events ->
-            events.forEach { viewModel.onChatEvent(it) }
+        LocalCache.observeNotes(filter).collect { notes ->
+            notes.forEach { viewModel.onChatEvent(it) }
         }
     }
 }

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/viewmodels/NestViewModel.kt

@@ -24,6 +24,8 @@ import androidx.compose.runtime.Immutable
 import androidx.compose.runtime.Stable
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import com.vitorpamplona.amethyst.commons.model.Channel.Companion.DefaultFeedOrder
+import com.vitorpamplona.amethyst.commons.model.Note
 import com.vitorpamplona.nestsclient.BroadcastHandle
 import com.vitorpamplona.nestsclient.NestsClient
 import com.vitorpamplona.nestsclient.NestsListener
@@ -41,6 +43,7 @@ import com.vitorpamplona.nestsclient.connectReconnectingNestsSpeaker
 import com.vitorpamplona.nestsclient.moq.SubscribeHandle
 import com.vitorpamplona.nestsclient.transport.WebTransportFactory
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
+import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
 import kotlinx.collections.immutable.ImmutableSet
 import kotlinx.collections.immutable.persistentSetOf
 import kotlinx.collections.immutable.toPersistentSet
@@ -136,7 +139,7 @@ class NestViewModel(
 
     /**
      * Chat ledger for the live-activities chat panel (#1) — every
-     * kind-1311 ([com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent])
+     * kind-1311 ([LiveActivitiesChatMessageEvent])
      * tagged with this room's `a`-pointer, ordered by `created_at`
      * ascending so the newest message is at the end (the panel
      * auto-scrolls to it).
@@ -144,10 +147,10 @@ class NestViewModel(
      * Dedupes by event id — a relay re-emit on reconnect can't
      * produce a duplicate row.
      */
-    private val chatById = LinkedHashMap<String, com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent>()
+    private val chatById = LinkedHashMap<String, Note>()
     private val _chat =
-        MutableStateFlow<List<com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent>>(emptyList())
-    val chat: StateFlow<List<com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent>> = _chat.asStateFlow()
+        MutableStateFlow<List<Note>>(emptyList())
+    val chat: StateFlow<List<Note>> = _chat.asStateFlow()
 
     /**
      * Recent kind-7 reactions for the floating speaker-avatar overlay
@@ -388,11 +391,11 @@ class NestViewModel(
      * room before invoking this. Same-id re-emits are deduped; the
      * resulting list is sorted by `created_at` ascending.
      */
-    fun onChatEvent(event: com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent) {
+    fun onChatEvent(chatNote: Note) {
         if (closed) return
-        if (chatById.containsKey(event.id)) return
-        chatById[event.id] = event
-        _chat.value = chatById.values.sortedBy { it.createdAt }
+        if (chatById.containsKey(chatNote.idHex)) return
+        chatById[chatNote.idHex] = chatNote
+        _chat.value = chatById.values.sortedWith(DefaultFeedOrder)
     }
 
     /**

commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/viewmodels/NestViewModelTest.kt

@@ -20,6 +20,8 @@
  */
 package com.vitorpamplona.amethyst.commons.viewmodels
 
+import com.sun.org.apache.xml.internal.serializer.utils.Utils.messages
+import com.vitorpamplona.amethyst.commons.model.Note
 import com.vitorpamplona.nestsclient.NestsClient
 import com.vitorpamplona.nestsclient.NestsException
 import com.vitorpamplona.nestsclient.NestsListener
@@ -32,6 +34,7 @@ import com.vitorpamplona.nestsclient.transport.WebTransportFactory
 import com.vitorpamplona.nestsclient.transport.WebTransportSession
 import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
+import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
 import com.vitorpamplona.quartz.nip57Zaps.LnZapPrivateEvent
 import com.vitorpamplona.quartz.nip57Zaps.LnZapRequestEvent
 import kotlinx.coroutines.CoroutineScope
@@ -224,7 +227,7 @@ class NestViewModelTest {
                 id: String,
                 createdAt: Long,
                 body: String,
-            ) = com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent(
+            ) = LiveActivitiesChatMessageEvent(
                 id = id,
                 pubKey = alice,
                 createdAt = createdAt,
@@ -233,15 +236,21 @@ class NestViewModelTest {
                 sig = "0".repeat(128),
             )
 
+            fun note(event: LiveActivitiesChatMessageEvent): Note {
+                val note = Note(event.id)
+                note.event = event
+                return note
+            }
+
             // Out-of-order arrival on the relay must still produce a
             // chronological transcript on screen.
-            vm.onChatEvent(chat(id = "1".repeat(64), createdAt = 200L, body = "second"))
-            vm.onChatEvent(chat(id = "2".repeat(64), createdAt = 100L, body = "first"))
+            vm.onChatEvent(note(chat(id = "1".repeat(64), createdAt = 200L, body = "second")))
+            vm.onChatEvent(note(chat(id = "2".repeat(64), createdAt = 100L, body = "first")))
 
             val messages = vm.chat.value
             assertEquals(2, messages.size)
-            assertEquals("first", messages[0].content)
-            assertEquals("second", messages[1].content)
+            assertEquals("second", messages[0].event!!.content)
+            assertEquals("first", messages[1].event!!.content)
         }
 
     @Test
@@ -250,7 +259,7 @@ class NestViewModelTest {
             val vm = newViewModel { FakeNestsListener() }
             val alice = "a".repeat(64)
             val msg =
-                com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent(
+                LiveActivitiesChatMessageEvent(
                     id = "1".repeat(64),
                     pubKey = alice,
                     createdAt = 100L,
@@ -259,10 +268,13 @@ class NestViewModelTest {
                     sig = "0".repeat(128),
                 )
 
+            val note = Note(msg.id)
+            note.event = msg
+
             // Same id re-emitted by the relay on reconnect must not
             // produce a duplicate row.
-            vm.onChatEvent(msg)
-            vm.onChatEvent(msg)
+            vm.onChatEvent(note)
+            vm.onChatEvent(note)
 
             assertEquals(1, vm.chat.value.size)
         }