dajks

.claude/settings.local.json

@@ -9,7 +9,9 @@
       "WebFetch(domain:central.sonatype.com)",
       "WebFetch(domain:gitlab.com)",
       "Bash(JAVA_HOME=/nix/store/3xf2cjni3xqn10xnsa0cyvjmnd8sqg7b-openjdk-17.0.18+8 jar tf:*)",
-      "Bash(unzip:*)"
+      "Bash(unzip:*)",
+      "WebFetch(domain:raw.githubusercontent.com)",
+      "Bash(export TERM=dumb:*)"
     ]
   }
 }

.idea/misc.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
   <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

AGENTS.md

@@ -0,0 +1,191 @@
+# Fluffytrix Agent Guidelines
+
+## Project Overview
+
+Fluffytrix is an Android Matrix chat client with a Discord-like UI. Built with Kotlin, targeting Android 14+ (minSdk 34, targetSdk 36, compileSdk 36).
+
+**Package**: `com.example.fluffytrix`  
+**Build system**: Gradle with Kotlin DSL, version catalog at `gradle/libs.versions.toml`  
+**Container/DI**: Koin  
+**State management**: Jetpack Compose StateFlow, ViewModel  
+**UI framework**: Jetpack Compose with Material 3 (Dynamic Colors)  
+**Protocol**: Trixnity SDK for Matrix  
+**Storage**: Room Database, DataStore Preferences  
+**Async**: Kotlin Coroutines  
+
+---
+
+## Build Commands
+
+```bash
+./gradlew assembleDebug          # Build debug APK (minified for performance)
+./gradlew assembleRelease        # Build release APK
+./gradlew test                   # Run unit tests
+./gradlew connectedAndroidTest   # Run instrumented tests on device/emulator
+./gradlew testDebugUnitTest --tests "com.example.fluffytrix.ExampleUnitTest"  # Run single test
+```
+
+**Notes**:
+- Debug builds use R8 with `isDebuggable = true` but strip material-icons-extended and optimize Compose for performance
+- Use `--tests` with Gradle test tasks to run a single test class
+- Instrumented tests require a connected device or emulator
+
+---
+
+## Testing
+
+**Unit tests**: Located in `app/src/test/java/`, run with `./gradlew test`  
+**Instrumented tests**: Located in `app/src/androidTest/java/`, run with `./gradlew connectedAndroidTest`
+
+**Single test execution**:
+```bash
+./gradlew testDebugUnitTest --tests "com.example.fluffytrix.*"
+./gradlew app:testDebugUnitTest --tests "ExampleUnitTest"
+```
+
+---
+
+## Code Style Guidelines
+
+### Kotlin Conventions
+
+- **Android Official Kotlin style** (`kotlin.code.style=official` in gradle.properties)
+- File naming: `PascalCase.kt` (e.g., `MainViewModel.kt`)
+- Class naming: `PascalCase` (e.g., `MainViewModel`, `AuthRepository`)
+- Function/property naming: `camelCase` (e.g., `sendMessage`, `selectedChannel`)
+- Constant naming: `PascalCase` for top-level constants
+- **Never use underscores in variable names**
+
+### Imports
+
+- Explicit imports only (no wildcard imports)
+- Group imports: Android/X → Kotlin → Javax/Java → Third-party → Same package
+- Example:
+  ```kotlin
+  import android.os.Bundle
+  import androidx.compose.material3.Text
+  import kotlinx.coroutines.flow.StateFlow
+  import net.folivo.trixnity.client.MatrixClient
+  import com.example.fluffytrix.ui.theme.FluffytrixTheme
+  ```
+
+### Types
+
+- Prefer `val` over `var` (immutable data)
+- Use `StateFlow<T>` for observable state in ViewModels
+- Use `Flow<T>` for read-only data streams
+- Use `suspend` functions for async operations
+- Use `Result<T>` for operations that can fail
+
+### Error Handling
+
+- Prefer `try-catch` with silent failure or `?` operators where appropriate
+- In ViewModels, use `catch (_: Exception) { }` or `?:` for graceful degradation
+- Expose error state via `StateFlow<AuthState>` where users need feedback
+- **Never crash the app on recoverable errors**
+
+### Compose UI
+
+- Use `@Composable` for all UI functions
+- Follow Discord-like layout: space sidebar → channel list → message area → member list
+- Use `MaterialTheme` for consistent theming
+- Prefer `Modifier.padding()` over nested `Box` with margins
+- Use `wrapContentWidth()` and `fillMaxWidth()` appropriately
+- For columnar layouts: `Column(horizontalAlignment = Alignment.CenterHorizontally, verticalArrangement = Arrangement.spacedBy(12.dp))`
+
+### ViewModels
+
+- Inject dependencies via constructor (Koin)
+- Use `viewModelScope` for coroutines
+- Expose state via `StateFlow` (e.g., `val messages: StateFlow<List<MessageItem>>`)
+- Use `MutableStateFlow` for internal state, expose as read-only `StateFlow`
+
+### Coroutines
+
+- Use `Dispatchers.Default` for CPU-intensive work (parsing, filtering)
+- Use `Dispatchers.IO` for file/network operations
+- Always cancel jobs on ViewModel cleanup: `job?.cancel()`
+- Use `withContext(Dispatchers.Default)` to switch threads explicitly
+
+### Data Layer
+
+- Use Room for persistent storage (Trixnity uses Room internally)
+- Use DataStore Preferences for small key-value data
+- Prefer Flow-based APIs for reactive data streams
+- Cache expensive operations in ViewModel (e.g., `messageCache`, `memberCache`)
+
+### Naming Conventions
+
+- State Flow properties: `_name` (private) / `name` (public)
+- Repository class: `AuthService`, `AuthRepository`
+- ViewModel class: `MainViewModel`, `LoginViewModel`
+- UI composable: `MainScreen`, `ChannelList`, `MessageItem`
+- Model data class: `MessageItem`, `ChannelItem`, `SpaceItem`
+- Use `full` property for Matrix IDs (e.g., `userId.full`, `roomId.full`)
+
+---
+
+## Architecture Patterns
+
+**Layered Architecture**:
+```
+ui/          — ViewModels, Screens, Navigation
+data/        — Repositories, local storage, models
+di/          — Koin modules
+ui/theme/    — Material 3 Theme (colors, typography)
+```
+
+**Dependency Injection**: Koin with two modules:
+- `appModule`: ViewModels (`viewModel { MainViewModel(...) }`)
+- `dataModule`: singleton services (`single { AuthRepository(...) }`)
+
+**UI Flow**:
+1. `FluffytrixNavigation` handles nav graph and session restoration
+2. `MainActivity` hosts the NavHost with `FluffytrixTheme`
+3. ViewModels expose state via StateFlow
+4. Screens observe state with `collectAsState()`
+
+---
+
+## Key Dependencies (from libs.versions.toml)
+
+- **Compose BOM**: `2025.06.00`
+- **Kotlin**: `2.2.10`
+- **AGP**: `9.0.1`
+- **Koin**: `4.1.1`
+- **Trixnity**: `4.22.7`
+- **Ktor**: `3.3.0`
+- **Coroutines**: `1.10.2`
+- **DataStore**: `1.1.7`
+- **Coil**: `3.2.0`
+- **Media3**: `1.6.0`
+
+---
+
+## Special Notes
+
+1. **Matrix IDs**: Use `RoomId`, `UserId` types from Trixnity; access `.full` for string representation
+
+2. **MXC URLs**: Convert with `MxcUrlHelper.mxcToDownloadUrl()` and `mxcToThumbnailUrl()`
+
+3. **Build Performance**: Debug builds use R8 minification with `isDebuggable = true` to balance speed and debuggability
+
+4. **Channel Reordering**: Channel order is saved per-space in DataStore and restored on navigation
+
+5. **Encrypted Rooms**: Handle decryption state—messages may appear as `Unable to decrypt` until keys arrive
+
+6. **Theme**: Material 3 with Discord-inspired color scheme (primary: `#5865F2`)
+
+---
+
+## Running Lint/Checks
+
+```bash
+./gradlew lintDebug
+./gradlew spotlessCheck
+```
+
+## CI/CD
+
+- All builds use Gradle wrapper (`./gradlew`)
+- No manual Gradle installation required (project uses Gradle 9.1.0)

app/build.gradle.kts

@@ -103,6 +103,8 @@ dependencies {
     // Coil (image loading)
     implementation(libs.coil.compose)
     implementation(libs.coil.network.okhttp)
+    implementation(libs.coil.gif)
+    implementation(libs.coil.video)
 
     // Media3 (video playback)
     implementation(libs.media3.exoplayer)

app/src/main/java/com/example/fluffytrix/FluffytrixApplication.kt

@@ -6,6 +6,8 @@ import coil3.SingletonImageLoader
 import coil3.disk.DiskCache
 import coil3.disk.directory
 import coil3.memory.MemoryCache
+import coil3.gif.AnimatedImageDecoder
+import coil3.video.VideoFrameDecoder
 import coil3.network.okhttp.OkHttpNetworkFetcherFactory
 import com.example.fluffytrix.data.repository.AuthRepository
 import com.example.fluffytrix.di.appModule
@@ -45,6 +47,8 @@ class FluffytrixApplication : Application(), SingletonImageLoader.Factory {
         return ImageLoader.Builder(context)
             .components {
                 add(OkHttpNetworkFetcherFactory(callFactory = { okHttpClient }))
+                add(AnimatedImageDecoder.Factory())
+                add(VideoFrameDecoder.Factory())
             }
             .memoryCache {
                 MemoryCache.Builder()

app/src/main/java/com/example/fluffytrix/di/AppModule.kt

@@ -1,17 +1,19 @@
 package com.example.fluffytrix.di
 
+import android.app.Application
 import com.example.fluffytrix.data.local.PreferencesManager
 import com.example.fluffytrix.data.repository.AuthRepository
 import com.example.fluffytrix.ui.screens.login.LoginViewModel
 import com.example.fluffytrix.ui.screens.main.MainViewModel
 import com.example.fluffytrix.ui.screens.verification.VerificationViewModel
+import org.koin.android.ext.koin.androidApplication
 import org.koin.core.module.dsl.viewModel
 import org.koin.dsl.module
 
 val appModule = module {
+    viewModel { MainViewModel(androidApplication(), get(), get()) }
     viewModel { LoginViewModel(get()) }
     viewModel { VerificationViewModel(get()) }
-    viewModel { MainViewModel(get(), get()) }
 }
 
 val dataModule = module {

app/src/main/java/com/example/fluffytrix/ui/screens/main/MainScreen.kt

@@ -55,6 +55,7 @@ fun MainScreen(
                     messages = messages,
                     onToggleMemberList = { viewModel.toggleMemberList() },
                     onSendMessage = { viewModel.sendMessage(it) },
+                    onSendFile = { viewModel.sendFile(it) },
                     modifier = Modifier.weight(1f),
                     contentPadding = padding,
                 )

app/src/main/java/com/example/fluffytrix/ui/screens/main/MainViewModel.kt

@@ -1,5 +1,8 @@
 package com.example.fluffytrix.ui.screens.main
 
+import android.app.Application
+import android.net.Uri
+import android.provider.OpenableColumns
 import androidx.compose.runtime.Immutable
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
@@ -21,7 +24,12 @@ import kotlinx.coroutines.flow.firstOrNull
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import net.folivo.trixnity.client.room
+import net.folivo.trixnity.client.room.message.file
+import net.folivo.trixnity.client.room.message.image
 import net.folivo.trixnity.client.room.message.text
+import net.folivo.trixnity.client.room.message.video
+import io.ktor.http.ContentType
+import kotlinx.coroutines.flow.flowOf
 import net.folivo.trixnity.client.store.Room
 import net.folivo.trixnity.client.store.isEncrypted
 import net.folivo.trixnity.client.user
@@ -32,10 +40,13 @@ import net.folivo.trixnity.core.model.events.m.room.Membership
 import net.folivo.trixnity.core.model.events.m.room.RoomMessageEventContent
 import net.folivo.trixnity.core.model.events.m.space.ChildEventContent
 
+enum class UnreadStatus { NONE, UNREAD, MENTIONED }
+
 data class SpaceItem(
     val id: RoomId,
     val name: String,
     val avatarUrl: String?,
+    val unreadStatus: UnreadStatus = UnreadStatus.NONE,
 )
 
 data class ChannelItem(
@@ -43,16 +54,19 @@ data class ChannelItem(
     val name: String,
     val isEncrypted: Boolean,
     val avatarUrl: String? = null,
+    val unreadStatus: UnreadStatus = UnreadStatus.NONE,
 )
 
 sealed interface MessageContent {
     data class Text(val body: String, val urls: List<String> = emptyList()) : MessageContent
     data class Image(val body: String, val url: String, val width: Int? = null, val height: Int? = null) : MessageContent
+    data class Gif(val body: String, val url: String, val width: Int? = null, val height: Int? = null) : MessageContent
     data class Video(val body: String, val url: String? = null, val thumbnailUrl: String? = null, val width: Int? = null, val height: Int? = null) : MessageContent
     data class File(val body: String, val fileName: String? = null, val size: Long? = null) : MessageContent
 }
 
 private val urlRegex = Regex("""https?://[^\s<>"{}|\\^`\[\]]+""")
+private val gifUrlRegex = Regex("""https?://(tenor\.com|giphy\.com|gfycat\.com|media\d*\.giphy\.com)/""", RegexOption.IGNORE_CASE)
 
 @Immutable
 data class MessageItem(
@@ -71,6 +85,7 @@ data class MemberItem(
 )
 
 class MainViewModel(
+    private val application: Application,
     private val authRepository: AuthRepository,
     private val preferencesManager: PreferencesManager,
 ) : ViewModel() {
@@ -110,6 +125,9 @@ class MainViewModel(
     private val _allChannelRooms = MutableStateFlow<List<ChannelItem>>(emptyList())
     private val _spaceChildren = MutableStateFlow<Set<RoomId>?>(null)
 
+    private val _roomUnreadStatus = MutableStateFlow<Map<RoomId, UnreadStatus>>(emptyMap())
+    private val _spaceChildrenMap = MutableStateFlow<Map<RoomId, Set<RoomId>>>(emptyMap())
+
     // Per-room caches
     private val messageCache = mutableMapOf<RoomId, MutableList<MessageItem>>()
     private val messageIds = mutableMapOf<RoomId, MutableSet<String>>()
@@ -178,31 +196,49 @@ class MainViewModel(
                         cachedRoomData = allResolved
                         val joinedRooms = allResolved.values.filter { it.membership == Membership.JOIN }
 
+                        // Derive per-room unread status from server-provided counts
+                        val syncUnread = mutableMapOf<RoomId, UnreadStatus>()
+                        for (room in joinedRooms) {
+                            if (room.roomId == _selectedChannel.value) continue
+                            val count = room.unreadMessageCount ?: 0
+                            if (count > 0) syncUnread[room.roomId] = UnreadStatus.UNREAD
+                        }
+                        _roomUnreadStatus.value = syncUnread
+
                         val allSpaces = joinedRooms
                             .filter { it.createEventContent?.type is RoomType.Space }
 
                         // Collect child space IDs so we only show top-level spaces
                         val childSpaceIds = mutableSetOf<RoomId>()
                         val allSpaceIds = allSpaces.map { it.roomId }.toSet()
+                        val spaceChildMap = mutableMapOf<RoomId, Set<RoomId>>()
                         coroutineScope {
                             allSpaces.map { space ->
                                 async {
                                     try {
                                         val children = client.room.getAllState(space.roomId, ChildEventContent::class)
                                             .firstOrNull()?.keys?.map { RoomId(it) } ?: emptyList()
-                                        children.filter { it in allSpaceIds }
-                                    } catch (_: Exception) { emptyList() }
+                                        space.roomId to children
+                                    } catch (_: Exception) { space.roomId to emptyList() }
                                 }
-                            }.awaitAll().forEach { childSpaceIds.addAll(it) }
+                            }.awaitAll().forEach { (spaceId, children) ->
+                                spaceChildMap[spaceId] = children.toSet()
+                                childSpaceIds.addAll(children.filter { it in allSpaceIds })
                             }
+                        }
+                        _spaceChildrenMap.value = spaceChildMap
 
                         _spaces.value = allSpaces
                             .filter { it.roomId !in childSpaceIds }
                             .map { room ->
+                                val childRooms = spaceChildMap[room.roomId] ?: emptySet()
+                                val spaceUnread = childRooms.mapNotNull { syncUnread[it] }
+                                    .maxByOrNull { it.ordinal } ?: UnreadStatus.NONE
                                 SpaceItem(
                                     id = room.roomId,
                                     name = room.name?.explicitName ?: room.roomId.full,
                                     avatarUrl = mxcToThumbnailUrl(baseUrl, room.avatarUrl, 96),
+                                    unreadStatus = spaceUnread,
                                 )
                             }
 
@@ -223,14 +259,23 @@ class MainViewModel(
 
     private fun observeSpaceFiltering() {
         viewModelScope.launch {
-            combine(_allChannelRooms, _spaceChildren, _selectedSpace, _channelOrderMap) { allChannels, children, spaceId, orderMap ->
+            combine(_allChannelRooms, _spaceChildren, _selectedSpace, _channelOrderMap, _roomUnreadStatus) { args ->
+                val allChannels = args[0] as List<ChannelItem>
+                val children = args[1] as Set<RoomId>?
+                val spaceId = args[2] as RoomId?
+                val orderMap = args[3] as Map<String, List<String>>
+                val unreadMap = args[4] as Map<RoomId, UnreadStatus>
                 val filtered = if (children == null) allChannels
                     else allChannels.filter { it.id in children }
+                val withUnread = filtered.map { ch ->
+                    val status = unreadMap[ch.id] ?: UnreadStatus.NONE
+                    if (status != ch.unreadStatus) ch.copy(unreadStatus = status) else ch
+                }
                 val savedOrder = spaceId?.let { orderMap[it.full] }
                 if (savedOrder != null) {
                     val indexMap = savedOrder.withIndex().associate { (i, id) -> id to i }
-                    filtered.sortedBy { indexMap[it.id.full] ?: Int.MAX_VALUE }
-                } else filtered
+                    withUnread.sortedBy { indexMap[it.id.full] ?: Int.MAX_VALUE }
+                } else withUnread
             }.collect { _channels.value = it }
         }
     }
@@ -361,19 +406,29 @@ class MainViewModel(
 
     private fun resolveContent(content: net.folivo.trixnity.core.model.events.RoomEventContent, baseUrl: String): MessageContent? {
         return when (content) {
-            is RoomMessageEventContent.FileBased.Image -> MessageContent.Image(
-                body = content.body,
-                url = mxcToDownloadUrl(baseUrl, content.url) ?: return null,
-                width = content.info?.width?.toInt(),
-                height = content.info?.height?.toInt(),
+            is RoomMessageEventContent.FileBased.Image -> {
+                val isGif = content.info?.mimeType == "image/gif"
+                val url = mxcToDownloadUrl(baseUrl, content.url) ?: return null
+                if (isGif) MessageContent.Gif(
+                    body = content.body, url = url,
+                    width = content.info?.width?.toInt(), height = content.info?.height?.toInt(),
+                ) else MessageContent.Image(
+                    body = content.body, url = url,
+                    width = content.info?.width?.toInt(), height = content.info?.height?.toInt(),
                 )
-            is RoomMessageEventContent.FileBased.Video -> MessageContent.Video(
-                body = content.body,
-                url = mxcToDownloadUrl(baseUrl, content.url),
-                thumbnailUrl = mxcToThumbnailUrl(baseUrl, content.info?.thumbnailUrl, 300),
-                width = content.info?.width?.toInt(),
-                height = content.info?.height?.toInt(),
+            }
+            is RoomMessageEventContent.FileBased.Video -> {
+                val isGif = content.info?.mimeType == "image/gif" || gifUrlRegex.containsMatchIn(content.body)
+                val url = mxcToDownloadUrl(baseUrl, content.url)
+                if (isGif && url != null) MessageContent.Gif(
+                    body = content.body, url = url,
+                    width = content.info?.width?.toInt(), height = content.info?.height?.toInt(),
+                ) else MessageContent.Video(
+                    body = content.body, url = url,
+                    thumbnailUrl = mxcToThumbnailUrl(baseUrl, content.info?.thumbnailUrl, 300) ?: url,
+                    width = content.info?.width?.toInt(), height = content.info?.height?.toInt(),
                 )
+            }
             is RoomMessageEventContent.FileBased.Audio -> MessageContent.File(
                 body = content.body,
                 fileName = content.fileName ?: content.body,
@@ -490,6 +545,53 @@ class MainViewModel(
         }
     }
 
+    fun sendFile(uri: Uri) {
+        val roomId = _selectedChannel.value ?: return
+        val client = authRepository.getClient() ?: return
+        viewModelScope.launch(Dispatchers.IO) {
+            try {
+                val contentResolver = application.contentResolver
+                val mimeType = contentResolver.getType(uri) ?: "application/octet-stream"
+                val fileName = contentResolver.query(uri, null, null, null, null)?.use { cursor ->
+                    if (cursor.moveToFirst()) {
+                        val idx = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+                        if (idx >= 0) cursor.getString(idx) else null
+                    } else null
+                } ?: "file"
+                val bytes = contentResolver.openInputStream(uri)?.use { it.readBytes() } ?: return@launch
+                val byteArrayFlow = flowOf(bytes)
+                val contentType = ContentType.parse(mimeType)
+                val size = bytes.size.toLong()
+
+                client.room.sendMessage(roomId) {
+                    when {
+                        mimeType.startsWith("image/") -> image(
+                            body = fileName,
+                            image = byteArrayFlow,
+                            type = contentType,
+                            size = size,
+                            fileName = fileName,
+                        )
+                        mimeType.startsWith("video/") -> video(
+                            body = fileName,
+                            video = byteArrayFlow,
+                            type = contentType,
+                            size = size,
+                            fileName = fileName,
+                        )
+                        else -> file(
+                            body = fileName,
+                            file = byteArrayFlow,
+                            type = contentType,
+                            size = size,
+                            fileName = fileName,
+                        )
+                    }
+                }
+            } catch (_: Exception) { }
+        }
+    }
+
     fun selectSpace(spaceId: RoomId) {
         if (_selectedSpace.value == spaceId) {
             _showChannelList.value = !_showChannelList.value
@@ -502,6 +604,23 @@ class MainViewModel(
 
     fun selectChannel(channelId: RoomId) {
         _selectedChannel.value = channelId
+        // Clear unread status for the opened room
+        if (_roomUnreadStatus.value.containsKey(channelId)) {
+            _roomUnreadStatus.value = _roomUnreadStatus.value - channelId
+            updateSpaceUnreadStatus()
+        }
+    }
+
+    private fun updateSpaceUnreadStatus() {
+        val unreadMap = _roomUnreadStatus.value
+        val childrenMap = _spaceChildrenMap.value
+        val baseUrl = authRepository.getBaseUrl() ?: return
+        _spaces.value = _spaces.value.map { space ->
+            val childRooms = childrenMap[space.id] ?: emptySet()
+            val spaceUnread = childRooms.mapNotNull { unreadMap[it] }
+                .maxByOrNull { it.ordinal } ?: UnreadStatus.NONE
+            if (spaceUnread != space.unreadStatus) space.copy(unreadStatus = spaceUnread) else space
+        }
     }
 
     fun toggleChannelList() {

app/src/main/java/com/example/fluffytrix/ui/screens/main/components/ChannelList.kt

@@ -5,6 +5,7 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.gestures.detectDragGesturesAfterLongPress
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
@@ -50,6 +51,7 @@ import androidx.compose.ui.unit.IntOffset
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.zIndex
 import com.example.fluffytrix.ui.screens.main.ChannelItem
+import com.example.fluffytrix.ui.screens.main.UnreadStatus
 import net.folivo.trixnity.core.model.RoomId
 import kotlin.math.roundToInt
 
@@ -200,6 +202,20 @@ fun ChannelList(
                         )
                         Spacer(modifier = Modifier.width(4.dp))
                     }
+                    if (channel.unreadStatus != UnreadStatus.NONE) {
+                        Box(
+                            modifier = Modifier
+                                .size(8.dp)
+                                .background(
+                                    if (channel.unreadStatus == UnreadStatus.MENTIONED) androidx.compose.ui.graphics.Color.Red
+                                    else androidx.compose.ui.graphics.Color.Gray,
+                                    androidx.compose.foundation.shape.CircleShape,
+                                ),
+                        )
+                        Spacer(modifier = Modifier.width(4.dp))
+                    } else {
+                        Spacer(modifier = Modifier.width(12.dp))
+                    }
                     Icon(
                         imageVector = if (channel.isEncrypted) Icons.Default.Lock else Icons.Default.Tag,
                         contentDescription = null,

app/src/main/java/com/example/fluffytrix/ui/screens/main/components/MessageTimeline.kt

@@ -10,6 +10,7 @@ import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
@@ -43,6 +44,8 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import android.net.Uri
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.gestures.detectTransformGestures
 import com.mikepenz.markdown.m3.Markdown
@@ -116,6 +119,7 @@ fun MessageTimeline(
     messages: List<MessageItem>,
     onToggleMemberList: () -> Unit,
     onSendMessage: (String) -> Unit,
+    onSendFile: (Uri) -> Unit,
     modifier: Modifier = Modifier,
     contentPadding: PaddingValues = PaddingValues(),
 ) {
@@ -229,7 +233,7 @@ fun MessageTimeline(
                 }
 
                 HorizontalDivider(color = MaterialTheme.colorScheme.surfaceVariant)
-                MessageInput(channelName ?: "message", onSendMessage)
+                MessageInput(channelName ?: "message", onSendMessage, onSendFile)
             }
         }
     }
@@ -309,6 +313,7 @@ private fun MessageContentView(content: MessageContent) {
     when (content) {
         is MessageContent.Text -> TextContent(content)
         is MessageContent.Image -> ImageContent(content)
+        is MessageContent.Gif -> GifContent(content)
         is MessageContent.Video -> VideoContent(content)
         is MessageContent.File -> FileContent(content)
     }
@@ -346,6 +351,51 @@ private fun ImageContent(content: MessageContent.Image) {
     )
 }
 
+@Composable
+@androidx.annotation.OptIn(androidx.media3.common.util.UnstableApi::class)
+private fun GifContent(content: MessageContent.Gif) {
+    val context = LocalContext.current
+    val authRepository: AuthRepository = koinInject()
+    val aspectRatio = if (content.width != null && content.height != null && content.height > 0)
+        content.width.toFloat() / content.height.toFloat() else 16f / 9f
+
+    val exoPlayer = remember(content.url) {
+        val token = authRepository.getAccessToken()
+        val dataSourceFactory = DefaultHttpDataSource.Factory().apply {
+            if (token != null) {
+                setDefaultRequestProperties(mapOf("Authorization" to "Bearer $token"))
+            }
+        }
+        val mediaSource = ProgressiveMediaSource.Factory(dataSourceFactory)
+            .createMediaSource(MediaItem.fromUri(Uri.parse(content.url)))
+        ExoPlayer.Builder(context).build().apply {
+            setMediaSource(mediaSource)
+            prepare()
+            playWhenReady = true
+            repeatMode = ExoPlayer.REPEAT_MODE_ALL
+            volume = 0f
+        }
+    }
+
+    DisposableEffect(content.url) {
+        onDispose { exoPlayer.release() }
+    }
+
+    AndroidView(
+        factory = { ctx ->
+            PlayerView(ctx).apply {
+                player = exoPlayer
+                useController = false
+                setShowBuffering(PlayerView.SHOW_BUFFERING_NEVER)
+            }
+        },
+        modifier = Modifier
+            .width((200.dp * aspectRatio).coerceAtMost(400.dp))
+            .height(200.dp)
+            .clip(RoundedCornerShape(8.dp)),
+    )
+}
+
 @Composable
 private fun VideoContent(content: MessageContent.Video) {
     val onPlayVideo = LocalVideoPlayer.current
@@ -536,19 +586,30 @@ private fun formatFileSize(bytes: Long): String {
 }
 
 @Composable
-private fun MessageInput(channelName: String, onSendMessage: (String) -> Unit) {
+private fun MessageInput(channelName: String, onSendMessage: (String) -> Unit, onSendFile: (Uri) -> Unit) {
     var text by remember { mutableStateOf("") }
+    val filePickerLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.GetContent()
+    ) { uri: Uri? ->
+        if (uri != null) onSendFile(uri)
+    }
     Row(
         modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp, vertical = 8.dp),
-        verticalAlignment = Alignment.CenterVertically,
+        verticalAlignment = Alignment.Bottom,
         horizontalArrangement = Arrangement.spacedBy(8.dp),
     ) {
+        IconButton(onClick = { filePickerLauncher.launch("*/*") }) {
+            Icon(
+                Icons.Default.AttachFile, "Attach file",
+                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+        }
         TextField(
             value = text,
             onValueChange = { text = it },
             placeholder = { Text("Message #$channelName", color = MaterialTheme.colorScheme.onSurfaceVariant) },
-            modifier = Modifier.weight(1f).clip(RoundedCornerShape(8.dp)),
-            singleLine = true,
+            modifier = Modifier.weight(1f).clip(RoundedCornerShape(8.dp)).heightIn(max = 160.dp),
+            maxLines = 8,
             colors = TextFieldDefaults.colors(
                 unfocusedContainerColor = MaterialTheme.colorScheme.surfaceVariant,
                 focusedContainerColor = MaterialTheme.colorScheme.surfaceVariant,

app/src/main/java/com/example/fluffytrix/ui/screens/main/components/SpaceList.kt

@@ -34,6 +34,7 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import coil3.compose.AsyncImage
 import com.example.fluffytrix.ui.screens.main.SpaceItem
+import com.example.fluffytrix.ui.screens.main.UnreadStatus
 import net.folivo.trixnity.core.model.RoomId
 
 @Composable
@@ -89,6 +90,7 @@ fun SpaceList(
 
         items(spaces, key = { it.id.full }) { space ->
             val isSelected = space.id == selectedSpace
+            Box(modifier = Modifier.size(48.dp)) {
                 Box(
                     modifier = Modifier
                         .size(48.dp)
@@ -117,6 +119,19 @@ fun SpaceList(
                         SpaceInitial(space.name, isSelected)
                     }
                 }
+                if (space.unreadStatus != UnreadStatus.NONE) {
+                    Box(
+                        modifier = Modifier
+                            .size(8.dp)
+                            .align(Alignment.TopEnd)
+                            .background(
+                                if (space.unreadStatus == UnreadStatus.MENTIONED) androidx.compose.ui.graphics.Color.Red
+                                else androidx.compose.ui.graphics.Color.Gray,
+                                CircleShape,
+                            ),
+                    )
+                }
+            }
         }
     }
 }

gradle/libs.versions.toml

@@ -67,6 +67,8 @@ ktor-client-okhttp = { group = "io.ktor", name = "ktor-client-okhttp", version.r
 # Coil (image loading)
 coil-compose = { group = "io.coil-kt.coil3", name = "coil-compose", version.ref = "coil" }
 coil-network-okhttp = { group = "io.coil-kt.coil3", name = "coil-network-okhttp", version.ref = "coil" }
+coil-gif = { group = "io.coil-kt.coil3", name = "coil-gif", version.ref = "coil" }
+coil-video = { group = "io.coil-kt.coil3", name = "coil-video", version.ref = "coil" }
 
 # Media3 (ExoPlayer)
 media3-exoplayer = { group = "androidx.media3", name = "media3-exoplayer", version.ref = "media3" }