[Jetcaster]: Make player speed part of EpisodePlayerState (#1356)

So that the player speed can be reflected on the UI as it changes.So
that the player speed can be reflected on the UI as it changes.So that
the player speed can be reflected on the UI as it changes.

Author: arriolac

Jetcaster/core/src/main/java/com/example/jetcaster/core/player/EpisodePlayer.kt

@@ -20,9 +20,11 @@ import com.example.jetcaster.core.model.PlayerEpisode
 import java.time.Duration
 import kotlinx.coroutines.flow.StateFlow
 
+val DefaultPlaybackSpeed = Duration.ofSeconds(1)
 data class EpisodePlayerState(
     val currentEpisode: PlayerEpisode? = null,
     val queue: List<PlayerEpisode> = emptyList(),
+    val playbackSpeed: Duration = DefaultPlaybackSpeed,
     val isPlaying: Boolean = false,
     val timeElapsed: Duration = Duration.ZERO,
 )

Jetcaster/core/src/main/java/com/example/jetcaster/core/player/MockEpisodePlayer.kt

@@ -41,6 +41,7 @@ class MockEpisodePlayer(
     private val queue = MutableStateFlow<List<PlayerEpisode>>(emptyList())
     private val isPlaying = MutableStateFlow(false)
     private val timeElapsed = MutableStateFlow(Duration.ZERO)
+    private val _playerSpeed = MutableStateFlow(DefaultPlaybackSpeed)
     private val coroutineScope = CoroutineScope(mainDispatcher)
 
     private var timerJob: Job? = null
@@ -52,13 +53,15 @@ class MockEpisodePlayer(
                 _currentEpisode,
                 queue,
                 isPlaying,
-                timeElapsed
-            ) { currentEpisode, queue, isPlaying, timeElapsed ->
+                timeElapsed,
+                _playerSpeed
+            ) { currentEpisode, queue, isPlaying, timeElapsed, playerSpeed ->
                 EpisodePlayerState(
                     currentEpisode = currentEpisode,
                     queue = queue,
                     isPlaying = isPlaying,
-                    timeElapsed = timeElapsed
+                    timeElapsed = timeElapsed,
+                    playbackSpeed = playerSpeed
                 )
             }.catch {
                 // TODO handle error state
@@ -69,7 +72,7 @@ class MockEpisodePlayer(
         }
     }
 
-    override var playerSpeed: Duration = Duration.ofSeconds(1)
+    override var playerSpeed: Duration = _playerSpeed.value
 
     override val playerState: StateFlow<EpisodePlayerState> = _playerState.asStateFlow()