Basic sync lyric support

app/src/main/java/com/github/damontecres/wholphin/MainActivity.kt

@@ -87,6 +87,8 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import okhttp3.OkHttpClient
 import org.jellyfin.sdk.model.api.BaseItemKind
+import org.jellyfin.sdk.model.api.CollectionType
+import org.jellyfin.sdk.model.serializer.toUUID
 import org.jellyfin.sdk.model.serializer.toUUIDOrNull
 import timber.log.Timber
 import javax.inject.Inject
@@ -321,7 +323,13 @@ class MainActivity : AppCompatActivity() {
                                                             server = current.server,
                                                             startDestination =
                                                                 requestedDestination
-                                                                    ?: Destination.Home(),
+//                                                                    ?: Destination.Home(),
+                                                                    // TODO undo
+                                                                    ?: Destination.MediaItem(
+                                                                        itemId = "7e64e319-657a-9516-ec78-490da03edccb".toUUID(),
+                                                                        type = BaseItemKind.COLLECTION_FOLDER,
+                                                                        collectionType = CollectionType.MUSIC,
+                                                                    ),
                                                             navigationManager = navigationManager,
                                                             preferences = preferences,
                                                             modifier = Modifier.fillMaxSize(),

app/src/main/java/com/github/damontecres/wholphin/data/model/AudioItem.kt

@@ -14,6 +14,7 @@ data class AudioItem(
     val artistNames: String?,
     val runtime: Duration?,
     val imageUrl: String?,
+    val hasLyrics: Boolean,
 ) {
     companion object {
         fun from(
@@ -28,6 +29,7 @@ data class AudioItem(
                 artistNames = item.data.albumArtist,
                 runtime = item.data.runTimeTicks?.ticks,
                 imageUrl = imageUrl,
+                hasLyrics = item.data.hasLyrics == true,
             )
     }
 }

app/src/main/java/com/github/damontecres/wholphin/ui/detail/music/LyricsContent.kt

@@ -0,0 +1,73 @@
+package com.github.damontecres.wholphin.ui.detail.music
+
+import androidx.compose.animation.animateColorAsState
+import androidx.compose.animation.core.LinearEasing
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.relocation.BringIntoViewRequester
+import androidx.compose.foundation.relocation.bringIntoViewRequester
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.tv.material3.MaterialTheme
+import androidx.tv.material3.Text
+import com.github.damontecres.wholphin.ui.ifElse
+import org.jellyfin.sdk.model.api.LyricDto
+import org.jellyfin.sdk.model.api.LyricLine
+
+@Composable
+fun LyricsContent(
+    lyrics: LyricDto?,
+    currentLyricPosition: Int?,
+    onClick: (LyricLine) -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    val listState = rememberLazyListState(currentLyricPosition ?: 0)
+    val bringIntoViewRequester = remember { BringIntoViewRequester() }
+    LaunchedEffect(currentLyricPosition) {
+        if (currentLyricPosition != null) {
+            bringIntoViewRequester.bringIntoView()
+        }
+    }
+    Column(modifier) {
+        LazyColumn(
+            state = listState,
+            contentPadding = PaddingValues(),
+            verticalArrangement = Arrangement.spacedBy(16.dp),
+            modifier = Modifier.fillMaxSize(),
+        ) {
+            if (lyrics?.lyrics?.isNotEmpty() == true) {
+                itemsIndexed(lyrics.lyrics) { index, lyric ->
+                    val color by animateColorAsState(
+                        if (index == currentLyricPosition || currentLyricPosition == null) {
+                            MaterialTheme.colorScheme.onSurface
+                        } else {
+                            MaterialTheme.colorScheme.onSurface.copy(alpha = .5f)
+                        },
+                        animationSpec = tween(durationMillis = 500, easing = LinearEasing),
+                    )
+
+                    Text(
+                        text = lyric.text,
+                        style = MaterialTheme.typography.bodyLarge,
+                        color = color,
+                        modifier =
+                            Modifier.ifElse(
+                                index == currentLyricPosition,
+                                Modifier.bringIntoViewRequester(bringIntoViewRequester),
+                            ),
+                    )
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/github/damontecres/wholphin/ui/detail/music/NowPlayingOverlay.kt

@@ -24,8 +24,8 @@ import androidx.media3.ui.compose.state.rememberPlayPauseButtonState
 import androidx.media3.ui.compose.state.rememberPreviousButtonState
 import androidx.tv.material3.Text
 import com.github.damontecres.wholphin.data.model.AudioItem
-import com.github.damontecres.wholphin.services.MusicServiceState
 import com.github.damontecres.wholphin.ui.playback.ControllerViewState
+import com.github.damontecres.wholphin.ui.playback.PlaybackAction
 import com.github.damontecres.wholphin.ui.playback.PlaybackButtons
 import com.github.damontecres.wholphin.ui.playback.SeekBar
 import com.github.damontecres.wholphin.ui.roundSeconds
@@ -36,7 +36,7 @@ import kotlin.time.Duration.Companion.seconds
 @OptIn(UnstableApi::class)
 @Composable
 fun NowPlayingOverlay(
-    state: MusicServiceState,
+    state: NowPlayingState,
     player: Player,
     current: AudioItem?,
     queue: List<AudioItem>,
@@ -79,7 +79,23 @@ fun NowPlayingOverlay(
                 player = player,
                 initialFocusRequester = focusRequester,
                 onControllerInteraction = { controllerViewState.pulseControls() },
-                onPlaybackActionClick = {},
+                onPlaybackActionClick = {
+                    when (it) {
+                        PlaybackAction.Next -> {
+                            nextState.onClick()
+                        }
+
+                        PlaybackAction.Previous -> {
+                            previousState.onClick()
+                        }
+
+                        is PlaybackAction.ToggleCaptions -> {
+                            TODO()
+                        }
+
+                        else -> {}
+                    }
+                },
                 showPlay = playPauseState.showPlay,
                 previousEnabled = previousState.isEnabled,
                 nextEnabled = nextState.isEnabled,

app/src/main/java/com/github/damontecres/wholphin/ui/detail/music/NowPlayingPage.kt

@@ -1,82 +1,40 @@
 package com.github.damontecres.wholphin.ui.detail.music
 
-import android.content.Context
+import androidx.activity.compose.BackHandler
 import androidx.annotation.OptIn
 import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.expandHorizontally
+import androidx.compose.animation.shrinkHorizontally
 import androidx.compose.foundation.focusable
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
 import androidx.compose.ui.focus.focusRequester
 import androidx.compose.ui.input.key.onPreviewKeyEvent
 import androidx.compose.ui.unit.dp
 import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
-import androidx.lifecycle.ViewModel
 import androidx.media3.common.util.UnstableApi
 import coil3.compose.AsyncImage
-import com.github.damontecres.wholphin.preferences.AppPreference
 import com.github.damontecres.wholphin.preferences.AppPreferences
 import com.github.damontecres.wholphin.preferences.UserPreferences
 import com.github.damontecres.wholphin.preferences.skipBackOnResume
-import com.github.damontecres.wholphin.services.BackdropService
-import com.github.damontecres.wholphin.services.FavoriteWatchManager
-import com.github.damontecres.wholphin.services.ImageUrlService
-import com.github.damontecres.wholphin.services.MusicService
-import com.github.damontecres.wholphin.services.NavigationManager
-import com.github.damontecres.wholphin.services.UserPreferencesService
 import com.github.damontecres.wholphin.services.rememberQueue
-import com.github.damontecres.wholphin.ui.playback.ControllerViewState
 import com.github.damontecres.wholphin.ui.playback.PlaybackKeyHandler
 import com.github.damontecres.wholphin.ui.tryRequestFocus
-import dagger.assisted.AssistedFactory
-import dagger.assisted.AssistedInject
-import dagger.hilt.android.lifecycle.HiltViewModel
-import dagger.hilt.android.qualifiers.ApplicationContext
-import org.jellyfin.sdk.api.client.ApiClient
 import kotlin.time.Duration.Companion.milliseconds
 
-@HiltViewModel(assistedFactory = NowPlayingViewModel.Factory::class)
-class NowPlayingViewModel
-    @AssistedInject
-    constructor(
-        private val api: ApiClient,
-        @param:ApplicationContext private val context: Context,
-        private val navigationManager: NavigationManager,
-        private val favoriteWatchManager: FavoriteWatchManager,
-        private val backdropService: BackdropService,
-        private val imageUrlService: ImageUrlService,
-        private val musicService: MusicService,
-        val userPreferencesService: UserPreferencesService,
-    ) : ViewModel() {
-        @AssistedFactory
-        interface Factory {
-            fun create(): NowPlayingViewModel
-        }
-
-        val controllerViewState =
-            ControllerViewState(
-                AppPreference.ControllerTimeout.defaultValue,
-                true,
-            )
-
-        val state get() = musicService.state
-        val player get() = musicService.player
-
-        init {
-        }
-
-        fun reportInteraction() {
-            controllerViewState.pulseControls()
-        }
-    }
-
 @OptIn(UnstableApi::class)
 @Composable
 fun NowPlayingPage(
@@ -88,8 +46,8 @@ fun NowPlayingPage(
 ) {
     val state by viewModel.state.collectAsState()
     val player = viewModel.player
-    val queue = rememberQueue(player, state.queueSize)
-    val current = queue.getOrNull(state.currentIndex)
+    val queue = rememberQueue(player, state.musicServiceState.queueSize)
+    val current = queue.getOrNull(state.musicServiceState.currentIndex)
 
     val controllerViewState = viewModel.controllerViewState
     val preferences =
@@ -124,23 +82,51 @@ fun NowPlayingPage(
 
     val focusRequester = remember { FocusRequester() }
     LaunchedEffect(Unit) { focusRequester.tryRequestFocus() }
-
+    Box(modifier) {
         Box(
             modifier =
-            modifier
+                Modifier
+                    .fillMaxSize()
                     .onPreviewKeyEvent(keyHandler::onKeyEvent)
                     .focusRequester(focusRequester)
                     .focusable(),
         ) {
+            Row(
+                horizontalArrangement = Arrangement.spacedBy(16.dp),
+                modifier = Modifier.fillMaxSize(),
+            ) {
+                AnimatedVisibility(
+                    visible = state.lyrics != null && state.lyrics?.lyrics?.isNotEmpty() == true,
+                    enter = expandHorizontally(expandFrom = Alignment.Start),
+                    exit = shrinkHorizontally(shrinkTowards = Alignment.Start),
+                    modifier = Modifier,
+                ) {
+                    LyricsContent(
+                        lyrics = state.lyrics,
+                        currentLyricPosition = state.currentLyricIndex,
+                        onClick = {},
+                        modifier =
+                            Modifier
+                                .padding(vertical = 120.dp, horizontal = 32.dp)
+                                .fillMaxHeight()
+                                .width(320.dp),
+                    )
+                }
                 AsyncImage(
                     contentDescription = null,
                     model = current?.imageUrl,
                     modifier =
                         Modifier
                             .padding(80.dp)
-                    .fillMaxSize(),
+                            .fillMaxSize()
+                            .weight(1f),
                 )
+            }
+        }
 
+        BackHandler(controllerViewState.controlsVisible) {
+            controllerViewState.hideControls()
+        }
         AnimatedVisibility(controllerViewState.controlsVisible) {
             NowPlayingOverlay(
                 state = state,

app/src/main/java/com/github/damontecres/wholphin/ui/detail/music/NowPlayingState.kt

@@ -0,0 +1,12 @@
+package com.github.damontecres.wholphin.ui.detail.music
+
+import androidx.compose.runtime.Stable
+import com.github.damontecres.wholphin.services.MusicServiceState
+import org.jellyfin.sdk.model.api.LyricDto
+
+@Stable
+data class NowPlayingState(
+    val musicServiceState: MusicServiceState,
+    val lyrics: LyricDto? = null,
+    val currentLyricIndex: Int? = null,
+)

app/src/main/java/com/github/damontecres/wholphin/ui/detail/music/NowPlayingViewModel.kt

@@ -0,0 +1,163 @@
+package com.github.damontecres.wholphin.ui.detail.music
+
+import android.content.Context
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.media3.common.MediaItem
+import androidx.media3.common.Player
+import com.github.damontecres.wholphin.data.model.AudioItem
+import com.github.damontecres.wholphin.preferences.AppPreference
+import com.github.damontecres.wholphin.services.BackdropService
+import com.github.damontecres.wholphin.services.FavoriteWatchManager
+import com.github.damontecres.wholphin.services.ImageUrlService
+import com.github.damontecres.wholphin.services.MusicService
+import com.github.damontecres.wholphin.services.NavigationManager
+import com.github.damontecres.wholphin.services.UserPreferencesService
+import com.github.damontecres.wholphin.ui.launchDefault
+import com.github.damontecres.wholphin.ui.onMain
+import com.github.damontecres.wholphin.ui.playback.ControllerViewState
+import com.mayakapps.kache.InMemoryKache
+import dagger.assisted.AssistedFactory
+import dagger.assisted.AssistedInject
+import dagger.hilt.android.lifecycle.HiltViewModel
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.isActive
+import org.jellyfin.sdk.api.client.ApiClient
+import org.jellyfin.sdk.api.client.extensions.lyricsApi
+import org.jellyfin.sdk.model.api.LyricDto
+import org.jellyfin.sdk.model.extensions.ticks
+import timber.log.Timber
+import java.util.UUID
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.milliseconds
+
+@HiltViewModel(assistedFactory = NowPlayingViewModel.Factory::class)
+class NowPlayingViewModel
+    @AssistedInject
+    constructor(
+        private val api: ApiClient,
+        @param:ApplicationContext private val context: Context,
+        private val navigationManager: NavigationManager,
+        private val favoriteWatchManager: FavoriteWatchManager,
+        private val backdropService: BackdropService,
+        private val imageUrlService: ImageUrlService,
+        private val musicService: MusicService,
+        val userPreferencesService: UserPreferencesService,
+    ) : ViewModel(),
+        Player.Listener {
+        @AssistedFactory
+        interface Factory {
+            fun create(): NowPlayingViewModel
+        }
+
+        val controllerViewState =
+            ControllerViewState(
+                AppPreference.Companion.ControllerTimeout.defaultValue,
+                true,
+            )
+
+        val state = MutableStateFlow(NowPlayingState(musicService.state.value))
+        val player get() = musicService.player
+
+        private val lyricCache =
+            InMemoryKache<UUID, LyricDto>(20) {
+                creationScope = CoroutineScope(Dispatchers.IO)
+            }
+
+        init {
+            player.addListener(this)
+            addCloseable { player.removeListener(this) }
+            viewModelScope.launchDefault {
+                musicService.state.collectLatest { musicServiceState ->
+                    state.update { it.copy(musicServiceState = musicServiceState) }
+                }
+            }
+            playbackLoop()
+        }
+
+        fun reportInteraction() {
+            controllerViewState.pulseControls()
+        }
+
+        private suspend fun getCurrent(): AudioItem? {
+            val mediaItem =
+                onMain { player.currentMediaItemIndex.let { player.getMediaItemAt(it) } }
+            return mediaItem.localConfiguration?.tag as? AudioItem
+        }
+
+        private fun playbackLoop() {
+            viewModelScope.launchDefault {
+                while (isActive) {
+                    val position = onMain { player.currentPosition }.milliseconds
+//                    Timber.v("playbackLoop: %s", position)
+                    getCurrent()?.let { audio ->
+//                        Timber.v("Got current %s", audio.id)
+                        if (audio.hasLyrics) {
+                            val lyrics =
+                                lyricCache.getOrPut(audio.id) {
+                                    // TODO remote lyrics?
+                                    api.lyricsApi.getLyrics(audio.id).content
+                                }
+                            val lyricIndex =
+                                if (lyrics != null) {
+                                    val offset = lyrics.metadata.offset?.ticks ?: Duration.ZERO
+                                    val lyricPosition = offset + position
+                                    lyrics.lyrics
+                                        .indexOfLast {
+                                            it.start?.ticks?.let { lyricPosition >= it } == true
+                                        }.takeIf { it >= 0 }
+                                } else {
+                                    null
+                                }
+                            Timber.v("lyricIndex=$lyricIndex")
+                            state.update {
+                                it.copy(
+                                    lyrics = lyrics,
+                                    currentLyricIndex = lyricIndex,
+                                )
+                            }
+                        }
+                    }
+
+                    delay(250)
+                }
+            }
+        }
+
+        override fun onMediaItemTransition(
+            mediaItem: MediaItem?,
+            reason: Int,
+        ) {
+            viewModelScope.launchDefault {
+                val audio = mediaItem?.localConfiguration?.tag as? AudioItem
+                Timber.v("onMediaItemTransition to %s", audio?.id)
+                state.update {
+                    it.copy(
+                        lyrics = null,
+                        currentLyricIndex = null,
+                    )
+                }
+                audio?.let { audio ->
+                    if (audio.hasLyrics) {
+                        val lyrics =
+                            lyricCache.getOrPut(audio.id) {
+                                // TODO remote lyrics?
+                                api.lyricsApi.getLyrics(audio.id).content
+                            }
+                        Timber.d("Got lyrics for %s: %s", audio.id, lyrics != null)
+                        state.update {
+                            it.copy(
+                                lyrics = lyrics,
+                            )
+                        }
+                    }
+                }
+            }
+        }
+    }