refactor: add CompositeMediaRepository to switch between offline/online based on user session

Extract AppContentRepository interface from MediaRepository for home/library-specific features.
CompositeMediaRepository delegates to OfflineMediaRepository or AppContentRepository based on
UserSessionRepository.isOfflineMode, allowing content ViewModels to use a single MediaRepository
interface that automatically switches data source.

feature/shared/src/main/java/hu/bbara/purefin/feature/shared/content/episode/EpisodeScreenViewModel.kt

@@ -12,7 +12,6 @@ import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.launch
 import org.jellyfin.sdk.model.UUID
 import javax.inject.Inject
 
@@ -31,10 +30,6 @@ class EpisodeScreenViewModel @Inject constructor(
         id?.let { episodesMap[it] }
     }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), null)
 
-    init {
-        viewModelScope.launch { mediaRepository.ensureReady() }
-    }
-
     fun onBack() {
         navigationManager.pop()
     }

feature/shared/src/main/java/hu/bbara/purefin/feature/shared/content/series/SeriesViewModel.kt

@@ -15,7 +15,6 @@ import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.flatMapLatest
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.stateIn
-import kotlinx.coroutines.launch
 import org.jellyfin.sdk.model.UUID
 import javax.inject.Inject
 
@@ -34,20 +33,14 @@ class SeriesViewModel @Inject constructor(
         }
         .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), null)
 
-    init {
-        viewModelScope.launch { mediaRepository.ensureReady() }
-    }
-
-    fun onSelectEpisode(seriesId: UUID, seasonId:UUID, episodeId: UUID) {
-        viewModelScope.launch {
-            navigationManager.navigate(Route.EpisodeRoute(
-                EpisodeDto(
-                    id = episodeId,
-                    seasonId = seasonId,
-                    seriesId = seriesId
-                )
-            ))
-        }
+    fun onSelectEpisode(seriesId: UUID, seasonId: UUID, episodeId: UUID) {
+        navigationManager.navigate(Route.EpisodeRoute(
+            EpisodeDto(
+                id = episodeId,
+                seasonId = seasonId,
+                seriesId = seriesId
+            )
+        ))
     }
 
     fun onBack() {

feature/shared/src/main/java/hu/bbara/purefin/feature/shared/home/HomePageViewModel.kt

@@ -3,7 +3,7 @@ package hu.bbara.purefin.feature.shared.home
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
-import hu.bbara.purefin.core.data.MediaRepository
+import hu.bbara.purefin.core.data.AppContentRepository
 import hu.bbara.purefin.core.data.domain.usecase.RefreshHomeDataUseCase
 import hu.bbara.purefin.core.data.navigation.EpisodeDto
 import hu.bbara.purefin.core.data.navigation.LibraryDto
@@ -25,7 +25,7 @@ import javax.inject.Inject
 
 @HiltViewModel
 class HomePageViewModel @Inject constructor(
-    private val mediaRepository: MediaRepository,
+    private val appContentRepository: AppContentRepository,
     private val userSessionRepository: UserSessionRepository,
     private val navigationManager: NavigationManager,
     private val refreshHomeDataUseCase: RefreshHomeDataUseCase
@@ -37,7 +37,7 @@ class HomePageViewModel @Inject constructor(
         initialValue = ""
     )
 
-    val libraries = mediaRepository.libraries.map { libraries ->
+    val libraries = appContentRepository.libraries.map { libraries ->
         libraries.map {
             LibraryItem(
                 id = it.id,
@@ -45,8 +45,8 @@ class HomePageViewModel @Inject constructor(
                 type = it.type,
                 posterUrl = it.posterUrl,
                 isEmpty = when(it.type) {
-                    CollectionType.MOVIES -> mediaRepository.movies.value.isEmpty()
-                    CollectionType.TVSHOWS -> mediaRepository.series.value.isEmpty()
+                    CollectionType.MOVIES -> appContentRepository.movies.value.isEmpty()
+                    CollectionType.TVSHOWS -> appContentRepository.series.value.isEmpty()
                     else -> true
                 }
             )
@@ -60,9 +60,9 @@ class HomePageViewModel @Inject constructor(
     )
 
     val continueWatching = combine(
-        mediaRepository.continueWatching,
-        mediaRepository.movies,
-        mediaRepository.episodes
+        appContentRepository.continueWatching,
+        appContentRepository.movies,
+        appContentRepository.episodes
     ) { list, moviesMap, episodesMap ->
         list.mapNotNull { media ->
             when (media) {
@@ -82,8 +82,8 @@ class HomePageViewModel @Inject constructor(
     )
 
     val nextUp = combine(
-        mediaRepository.nextUp,
-        mediaRepository.episodes
+        appContentRepository.nextUp,
+        appContentRepository.episodes
     ) { list, episodesMap ->
         list.mapNotNull { media ->
             when (media) {
@@ -100,10 +100,10 @@ class HomePageViewModel @Inject constructor(
     )
 
     val latestLibraryContent = combine(
-        mediaRepository.latestLibraryContent,
-        mediaRepository.movies,
-        mediaRepository.series,
-        mediaRepository.episodes
+        appContentRepository.latestLibraryContent,
+        appContentRepository.movies,
+        appContentRepository.series,
+        appContentRepository.episodes
     ) { libraryMap, moviesMap, seriesMap, episodesMap ->
         libraryMap.mapValues { (_, items) ->
             items.mapNotNull { media ->
@@ -131,7 +131,7 @@ class HomePageViewModel @Inject constructor(
     )
 
     init {
-        viewModelScope.launch { mediaRepository.ensureReady() }
+        viewModelScope.launch { appContentRepository.ensureReady() }
     }
 
     fun onLibrarySelected(id: UUID, name: String) {

feature/shared/src/main/java/hu/bbara/purefin/feature/shared/library/LibraryViewModel.kt

@@ -4,7 +4,7 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import hu.bbara.purefin.feature.shared.home.PosterItem
-import hu.bbara.purefin.core.data.MediaRepository
+import hu.bbara.purefin.core.data.AppContentRepository
 import hu.bbara.purefin.core.data.navigation.MovieDto
 import hu.bbara.purefin.core.data.navigation.NavigationManager
 import hu.bbara.purefin.core.data.navigation.Route
@@ -22,13 +22,13 @@ import javax.inject.Inject
 
 @HiltViewModel
 class LibraryViewModel @Inject constructor(
-    private val mediaRepository: MediaRepository,
+    private val appContentRepository: AppContentRepository,
     private val navigationManager: NavigationManager
 ) : ViewModel() {
 
     private val selectedLibrary = MutableStateFlow<UUID?>(null)
 
-    val contents: StateFlow<List<PosterItem>> = combine(selectedLibrary, mediaRepository.libraries) {
+    val contents: StateFlow<List<PosterItem>> = combine(selectedLibrary, appContentRepository.libraries) {
         libraryId, libraries ->
         if (libraryId == null) {
             return@combine emptyList()
@@ -46,7 +46,7 @@ class LibraryViewModel @Inject constructor(
     }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyList())
 
     init {
-        viewModelScope.launch { mediaRepository.ensureReady() }
+        viewModelScope.launch { appContentRepository.ensureReady() }
     }
 
     fun onMovieSelected(movieId: UUID) {