feat: Add home screen music playback widget and some updates in Turkish localization (#98)

app/src/notquitemy/java/com/cappielloantonio/tempo/service/MediaService.kt

@@ -8,6 +8,8 @@ import android.content.Intent
 import android.os.Binder
 import android.os.Bundle
 import android.os.IBinder
+import android.os.Handler
+import android.os.Looper
 import androidx.media3.common.*
 import androidx.media3.common.util.UnstableApi
 import androidx.media3.exoplayer.DefaultLoadControl
@@ -23,6 +25,7 @@ import com.cappielloantonio.tempo.util.DownloadUtil
 import com.cappielloantonio.tempo.util.DynamicMediaSourceFactory
 import com.cappielloantonio.tempo.util.Preferences
 import com.cappielloantonio.tempo.util.ReplayGainUtil
+import com.cappielloantonio.tempo.widget.WidgetUpdateManager
 import com.google.common.collect.ImmutableList
 import com.google.common.util.concurrent.Futures
 import com.google.common.util.concurrent.ListenableFuture
@@ -39,6 +42,18 @@ class MediaService : MediaLibraryService() {
     lateinit var equalizerManager: EqualizerManager
 
     private var customLayout = ImmutableList.of<CommandButton>()
+    private val widgetUpdateHandler = Handler(Looper.getMainLooper())
+    private var widgetUpdateScheduled = false
+    private val widgetUpdateRunnable = object : Runnable {
+        override fun run() {
+            if (!player.isPlaying) {
+                widgetUpdateScheduled = false
+                return
+            }
+            updateWidget()
+            widgetUpdateHandler.postDelayed(this, WIDGET_UPDATE_INTERVAL_MS)
+        }
+    }
 
     inner class LocalBinder : Binder() {
         fun getEqualizerManager(): EqualizerManager {
@@ -80,6 +95,7 @@ class MediaService : MediaLibraryService() {
 
     override fun onDestroy() {
         equalizerManager.release()
+        stopWidgetUpdates()
         releasePlayer()
         super.onDestroy()
     }
@@ -260,6 +276,7 @@ class MediaService : MediaLibraryService() {
                 if (reason == Player.MEDIA_ITEM_TRANSITION_REASON_SEEK || reason == Player.MEDIA_ITEM_TRANSITION_REASON_AUTO) {
                     MediaManager.setLastPlayedTimestamp(mediaItem)
                 }
+                updateWidget()
             }
 
             override fun onTracksChanged(tracks: Tracks) {
@@ -282,6 +299,12 @@ class MediaService : MediaLibraryService() {
                 } else {
                     MediaManager.scrobble(player.currentMediaItem, false)
                 }
+                if (isPlaying) {
+                    scheduleWidgetUpdates()
+                } else {
+                    stopWidgetUpdates()
+                }
+                updateWidget()
             }
 
             override fun onPlaybackStateChanged(playbackState: Int) {
@@ -293,6 +316,7 @@ class MediaService : MediaLibraryService() {
                     MediaManager.scrobble(player.currentMediaItem, true)
                     MediaManager.saveChronology(player.currentMediaItem)
                 }
+                updateWidget()
             }
 
             override fun onPositionDiscontinuity(
@@ -326,6 +350,9 @@ class MediaService : MediaLibraryService() {
                 mediaLibrarySession.setCustomLayout(customLayout)
             }
         })
+        if (player.isPlaying) {
+            scheduleWidgetUpdates()
+        }
     }
 
     private fun setPlayer(player: Player) {
@@ -386,5 +413,48 @@ class MediaService : MediaLibraryService() {
             .build()
     }
 
+    private fun updateWidget() {
+        val mi = player.currentMediaItem
+        val title = mi?.mediaMetadata?.title?.toString()
+            ?: mi?.mediaMetadata?.extras?.getString("title")
+        val artist = mi?.mediaMetadata?.artist?.toString()
+            ?: mi?.mediaMetadata?.extras?.getString("artist")
+        val album = mi?.mediaMetadata?.albumTitle?.toString()
+            ?: mi?.mediaMetadata?.extras?.getString("album")
+        val coverId = mi?.mediaMetadata?.extras?.getString("coverArtId")
+        val position = player.currentPosition.takeIf { it != C.TIME_UNSET } ?: 0L
+        val duration = player.duration.takeIf { it != C.TIME_UNSET } ?: 0L
+        WidgetUpdateManager.updateFromState(
+            this,
+            title ?: "",
+            artist ?: "",
+            album ?: "",
+            coverId,
+            player.isPlaying,
+            player.shuffleModeEnabled,
+            player.repeatMode,
+            position,
+            duration
+        )
+    }
+
+    private fun scheduleWidgetUpdates() {
+        if (widgetUpdateScheduled) return
+        widgetUpdateHandler.postDelayed(widgetUpdateRunnable, WIDGET_UPDATE_INTERVAL_MS)
+        widgetUpdateScheduled = true
+    }
+
+    private fun stopWidgetUpdates() {
+        if (!widgetUpdateScheduled) return
+        widgetUpdateHandler.removeCallbacks(widgetUpdateRunnable)
+        widgetUpdateScheduled = false
+    }
+
+
     private fun getRenderersFactory() = DownloadUtil.buildRenderersFactory(this, false)
-}
+
+    private fun getMediaSourceFactory() =
+        DefaultMediaSourceFactory(this).setDataSourceFactory(DownloadUtil.getDataSourceFactory(this))
+}
+
+private const val WIDGET_UPDATE_INTERVAL_MS = 1000L