Add option to override user profile settings for audio & subtitle languages (#1680)

## Description
Adds settings under the "User profile settings" section which allows for
specifying preferred languages for audio and subtitles and the preferred
subtitle mode.

By default (matching existing Wholphin behavior), the preferred
languages and subtitle mode are derived from the user's profile settings
provided by the server which can be set on the WebUI:
User->Settings->Playback or Subtitles. However, this isn't well
understood and Wholphin doesn't display these values anywhere, so many
users were confused.

The preferred languages and subtitle mode can now be configured from
within Wholphin. Setting these will **not** update the server. The
settings are **only** used locally.

### Related issues
Related to #319
Closes #790

### Testing
Emulator manually changing some settings, added additional unit tests to
ensure the overrides are respected when choosing tracks

## Screenshots
### Settings page
<img width="1280" height="720" alt="settings_01 Large"
src="https://github.com/user-attachments/assets/28cc2f6b-3a60-42a4-b268-48695086d566"
/>

### Clicking into "More user profile settings"
<img width="1280" height="720" alt="settings_02 Large"
src="https://github.com/user-attachments/assets/6c3be3aa-c177-4d44-8060-b76d15fb10d7"
/>

### Language choice dialog

Can filter languages by typing in the search box at the top

<img width="1280" height="720" alt="settings_03 Large"
src="https://github.com/user-attachments/assets/c014d0ba-8d5b-4201-a6ee-4876b478148c"
/>


## AI or LLM usage
None

app/src/main/java/com/github/damontecres/wholphin/data/AppDatabase.kt

@@ -49,7 +49,7 @@ import java.util.UUID
         SeerrUser::class,
         RememberedTab::class,
     ],
-    version = 34,
+    version = 35,
     exportSchema = true,
     autoMigrations = [
         AutoMigration(3, 4),
@@ -67,6 +67,7 @@ import java.util.UUID
         AutoMigration(31, 32),
         AutoMigration(32, 33),
         AutoMigration(33, 34),
+        AutoMigration(34, 35),
     ],
 )
 @TypeConverters(Converters::class)

app/src/main/java/com/github/damontecres/wholphin/data/JellyfinServerDao.kt

@@ -9,6 +9,7 @@ import androidx.room.Update
 import com.github.damontecres.wholphin.data.model.JellyfinServer
 import com.github.damontecres.wholphin.data.model.JellyfinServerUsers
 import com.github.damontecres.wholphin.data.model.JellyfinUser
+import kotlinx.coroutines.flow.Flow
 import java.util.UUID
 
 @Dao
@@ -56,6 +57,12 @@ interface JellyfinServerDao {
         userId: UUID,
     ): JellyfinUser?
 
+    @Query("SELECT * FROM users WHERE serverId = :serverId AND id = :userId")
+    fun getUserFlow(
+        serverId: UUID,
+        userId: UUID,
+    ): Flow<JellyfinUser?>
+
     @Query("DELETE FROM servers WHERE id = :serverId")
     fun deleteServer(serverId: UUID)
 

app/src/main/java/com/github/damontecres/wholphin/data/ServerRepository.kt

@@ -12,9 +12,12 @@ import com.github.damontecres.wholphin.ui.toServerString
 import com.github.damontecres.wholphin.util.WholphinDispatchers
 import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.withContext
@@ -57,7 +60,18 @@ class ServerRepository
         val currentServer: JellyfinServer? get() = _current.value?.server
         val currentServerFlow: Flow<JellyfinServer?> get() = _current.map { it?.server }
         val currentUser: JellyfinUser? get() = _current.value?.user
-        val currentUserFlow: Flow<JellyfinUser?> get() = _current.map { it?.user }
+
+        @OptIn(ExperimentalCoroutinesApi::class)
+        val currentUserFlow: Flow<JellyfinUser?>
+            get() =
+                _current
+                    .flatMapLatest { user ->
+                        if (user?.user != null) {
+                            serverDao.getUserFlow(user.user.serverId, user.user.id)
+                        } else {
+                            flow { emit(null) }
+                        }
+                    }
 
         /**
          * Adds a server to the app database and updated the [ApiClient] to the server's URL

app/src/main/java/com/github/damontecres/wholphin/data/model/JellyfinServer.kt

@@ -11,6 +11,8 @@ import androidx.room.Index
 import androidx.room.PrimaryKey
 import androidx.room.Relation
 import com.github.damontecres.wholphin.data.ZonedDateTimeSerializer
+import com.github.damontecres.wholphin.preferences.SubtitleModePreference
+import com.github.damontecres.wholphin.preferences.UserProfileSettings
 import com.github.damontecres.wholphin.ui.isNotNullOrBlank
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.UseSerializers
@@ -65,11 +67,15 @@ data class JellyfinUser(
     val requireLogin: Boolean = false,
     val lastUsed: ZonedDateTime? = null,
     val uiLanguage: String? = null,
+    @Embedded val appPreferences: JellyfinUserPreferences = JellyfinUserPreferences(),
 ) {
     val hasPin: Boolean get() = pin.isNotNullOrBlank()
 
     override fun toString(): String =
-        "JellyfinUser(rowId=$rowId, id=$id, name=$name, serverId=$serverId, lastUsed=$lastUsed, accessToken?=${accessToken.isNotNullOrBlank()}, pin?=${pin.isNotNullOrBlank()})"
+        "JellyfinUser(rowId=$rowId, id=$id, name=$name, serverId=$serverId, lastUsed=$lastUsed, " +
+            "accessToken?=${accessToken.isNotNullOrBlank()}, pin?=${pin.isNotNullOrBlank()}), " +
+            "requireLogin=$requireLogin, lastUsed=$lastUsed, uiLanguage=$uiLanguage, " +
+            "appPreferences=$appPreferences"
 }
 
 /**
@@ -83,3 +89,13 @@ data class JellyfinServerUsers(
     )
     val users: List<JellyfinUser>,
 )
+
+@Serializable
+data class JellyfinUserPreferences(
+    @ColumnInfo(defaultValue = "")
+    val preferredAudioLanguage: String = UserProfileSettings.USE_USER_PROFILE,
+    @ColumnInfo(defaultValue = "")
+    val preferredSubtitleLanguage: String = UserProfileSettings.USE_USER_PROFILE,
+    @ColumnInfo(defaultValue = "USE_USER_PROFILE")
+    val subtitleMode: SubtitleModePreference = SubtitleModePreference.USE_USER_PROFILE,
+)