detail: fix broken playing state updates

app/src/main/java/org/oxycblt/auxio/detail/AlbumDetailFragment.kt

@@ -143,6 +143,8 @@ class AlbumDetailFragment : DetailFragment<Album, Song>() {
         binding.detailShuffleButton?.setOnClickListener {
             playbackModel.shuffle(unlikelyToBeNull(detailModel.currentAlbum.value))
         }
+        updatePlayback(
+            playbackModel.song.value, playbackModel.parent.value, playbackModel.isPlaying.value)
     }
 
     private fun updateList(list: List<Item>) {

app/src/main/java/org/oxycblt/auxio/detail/ArtistDetailFragment.kt

@@ -166,6 +166,8 @@ class ArtistDetailFragment : DetailFragment<Artist, Music>() {
         binding.detailShuffleButton?.setOnClickListener {
             playbackModel.shuffle(unlikelyToBeNull(detailModel.currentArtist.value))
         }
+        updatePlayback(
+            playbackModel.song.value, playbackModel.parent.value, playbackModel.isPlaying.value)
     }
 
     private fun updateList(list: List<Item>) {

app/src/main/java/org/oxycblt/auxio/detail/GenreDetailFragment.kt

@@ -135,6 +135,8 @@ class GenreDetailFragment : DetailFragment<Genre, Music>() {
         binding.detailShuffleButton?.setOnClickListener {
             playbackModel.shuffle(unlikelyToBeNull(detailModel.currentGenre.value))
         }
+        updatePlayback(
+            playbackModel.song.value, playbackModel.parent.value, playbackModel.isPlaying.value)
     }
 
     private fun updateList(list: List<Item>) {

app/src/main/java/org/oxycblt/auxio/detail/PlaylistDetailFragment.kt

@@ -237,6 +237,8 @@ class PlaylistDetailFragment :
                 playbackModel.shuffle(unlikelyToBeNull(detailModel.currentPlaylist.value))
             }
         }
+        updatePlayback(
+            playbackModel.song.value, playbackModel.parent.value, playbackModel.isPlaying.value)
     }
 
     private fun updateList(list: List<Item>) {

app/src/main/java/org/oxycblt/auxio/home/HomeGenerator.kt

@@ -158,8 +158,7 @@ private class HomeGeneratorImpl(
             } else {
                 sorted
             }
-        }
+        } ?: emptyList()
-            ?: emptyList()
 
     override fun genres() =
         musicRepository.deviceLibrary?.let { listSettings.genreSort.genres(it.genres) }

app/src/main/java/org/oxycblt/auxio/music/service/Indexer.kt

@@ -29,6 +29,7 @@ import org.oxycblt.auxio.BuildConfig
 import org.oxycblt.auxio.ForegroundListener
 import org.oxycblt.auxio.ForegroundServiceNotification
 import org.oxycblt.auxio.music.IndexingState
+import org.oxycblt.auxio.music.MusicParent
 import org.oxycblt.auxio.music.MusicRepository
 import org.oxycblt.auxio.music.MusicSettings
 import org.oxycblt.auxio.playback.state.PlaybackStateManager
@@ -155,6 +156,8 @@ private constructor(
         playbackManager.toSavedState()?.let { savedState ->
             playbackManager.applySavedState(
                 savedState.copy(
+                    parent =
+                        savedState.parent?.let { musicRepository.find(it.uid) as? MusicParent? },
                     heap =
                         savedState.heap.map { song ->
                             song?.let { deviceLibrary.findSong(it.uid) }

app/src/main/java/org/oxycblt/auxio/playback/service/ExoPlaybackStateHolder.kt

@@ -371,6 +371,7 @@ class ExoPlaybackStateHolder(
     ) {
         var sendNewPlaybackEvent = false
         var shouldSeek = false
+        L.d("invalidating parent ${this.parent?.songs} ${parent?.songs}")
         if (this.parent != parent) {
             this.parent = parent
             sendNewPlaybackEvent = true

app/src/main/java/org/oxycblt/auxio/widgets/WidgetProvider.kt

@@ -157,7 +157,8 @@ class WidgetProvider : AppWidgetProvider() {
     fun reset(context: Context, uiSettings: UISettings) {
         L.d("Using default layout")
         val layout = newDefaultLayout(context, uiSettings)
-        AppWidgetManager.getInstance(context).updateAppWidget(ComponentName(context, this::class.java), layout)
+        AppWidgetManager.getInstance(context)
+            .updateAppWidget(ComponentName(context, this::class.java), layout)
     }
 
     // --- INTERNAL METHODS ---