refactor: simplify PlayerViewModel initialization by loading record via DI

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

@@ -29,18 +29,18 @@ import fr.ajaury.gwenedeg.player.ui.viewmodel.PlayerViewModel
 import fr.ajaury.gwenedeg.subtitle.domain.SubtitleLine
 import fr.ajaury.gwenedeg.theme.GwenedegTheme
 import org.koin.compose.viewmodel.koinViewModel
+import org.koin.core.parameter.parametersOf
 import kotlin.time.Duration.Companion.milliseconds
 
 @Composable
 fun PlayerScreen(
     recordId: Int,
     onBackClicked: () -> Unit = {},
-    viewModel: PlayerViewModel = koinViewModel(),
+    viewModel: PlayerViewModel = koinViewModel(key = "$recordId") { parametersOf(recordId) },
 ) {
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
 
-    DisposableEffect(recordId) {
-        viewModel.loadRecord(recordId = recordId)
+    DisposableEffect(Unit) {
         onDispose {
             viewModel.stop()
         }

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

@@ -13,13 +13,14 @@ import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.WhileSubscribed
 import kotlinx.coroutines.flow.combine
-import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onStart
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
 import kotlin.time.Duration.Companion.milliseconds
 import kotlin.time.Duration.Companion.seconds
 
 class PlayerViewModel(
+    private val recordId: Int,
     private val recordRepository: RecordRepository,
     private val playbackRepository: PlaybackRepository,
     private val audioSessionManager: AudioSessionManager,
@@ -27,6 +28,8 @@ class PlayerViewModel(
 ) : ViewModel() {
     private val recordTitle = MutableStateFlow("")
 
+    private var recordLoaded = false
+
     val uiState: StateFlow<PlayerUiState> = combine(
         recordTitle,
         playbackRepository.playbackState,
@@ -41,17 +44,26 @@ class PlayerViewModel(
             subtitleLines = subtitle.lines,
             currentSubtitleIndex = currentSubtitleIndex,
         )
-    }.stateIn(
-        scope = viewModelScope,
-        started = SharingStarted.WhileSubscribed(5.seconds),
-        initialValue = PlayerUiState(),
-    )
+    }
+        .onStart { loadRecord() }
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5.seconds),
+            initialValue = PlayerUiState(),
+        )
 
     init {
         audioSessionManager.activate()
     }
 
-    fun loadRecord(recordId: Int) {
+    private fun loadRecord() {
+        logger.debug("Loading record $recordId")
+        if (recordLoaded) {
+            logger.debug("Record $recordId already loaded")
+            return
+        }
+        recordLoaded = true
+
         viewModelScope.launch {
             val record = recordRepository.getRecord(id = recordId)
             if (record == null) {