new: add PlayerViewModel to manage audio playback and session handling

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/player/ui/viewmodel/PlayerViewModel.kt

@@ -0,0 +1,33 @@
+package fr.ajaury.gwenedeg.player.ui.viewmodel
+
+import androidx.lifecycle.ViewModel
+import fr.ajaury.gwenedeg.player.AudioPlayer
+import fr.ajaury.gwenedeg.player.AudioSessionManager
+
+class PlayerViewModel(
+    private val audioPlayer: AudioPlayer,
+    private val audioSessionManager: AudioSessionManager,
+) : ViewModel() {
+    init {
+        audioSessionManager.activate()
+    }
+
+    fun play(filePath: String) {
+        audioPlayer.load(filePath = filePath)
+        audioPlayer.play()
+    }
+
+    fun pause() {
+        audioPlayer.pause()
+    }
+
+    fun stop() {
+        audioPlayer.stop()
+    }
+
+    override fun onCleared() {
+        super.onCleared()
+        audioSessionManager.deactivate()
+        audioPlayer.release()
+    }
+}