feat(settings): add SettingsScreen and integrate settings management

core/src/main/java/hu/bbara/purefin/feature/browse/home/AppViewModel.kt

@@ -256,6 +256,10 @@ class AppViewModel @Inject constructor(
         navigationManager.navigate(Route.HomeSearchRoute)
     }
 
+    fun openSettings() {
+        navigationManager.navigate(Route.SettingsRoute)
+    }
+
     fun logout() {
         viewModelScope.launch {
             userSessionRepository.setLoggedIn(false)

core/src/main/java/hu/bbara/purefin/feature/settings/SettingsViewModel.kt

@@ -0,0 +1,47 @@
+package hu.bbara.purefin.feature.settings
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import dagger.hilt.android.lifecycle.HiltViewModel
+import hu.bbara.purefin.navigation.NavigationManager
+import hu.bbara.purefin.settings.BooleanSetting
+import hu.bbara.purefin.settings.NumberSetting
+import hu.bbara.purefin.settings.SettingsRepository
+import hu.bbara.purefin.settings.StringSetting
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class SettingsViewModel @Inject constructor(
+    private val settingsRepository: SettingsRepository,
+    private val navigationManager: NavigationManager,
+) : ViewModel() {
+
+    fun value(option: NumberSetting) = settingsRepository.value(option)
+
+    fun value(option: BooleanSetting) = settingsRepository.value(option)
+
+    fun value(option: StringSetting) = settingsRepository.value(option)
+
+    fun set(option: NumberSetting, value: Double) {
+        viewModelScope.launch {
+            settingsRepository.set(option, value)
+        }
+    }
+
+    fun set(option: BooleanSetting, value: Boolean) {
+        viewModelScope.launch {
+            settingsRepository.set(option, value)
+        }
+    }
+
+    fun set(option: StringSetting, value: String) {
+        viewModelScope.launch {
+            settingsRepository.set(option, value)
+        }
+    }
+
+    fun onBack() {
+        navigationManager.pop()
+    }
+}

core/src/main/java/hu/bbara/purefin/navigation/Route.kt

@@ -26,6 +26,9 @@ sealed interface Route : NavKey {
     @Serializable
     data object LoginRoute : Route
 
+    @Serializable
+    data object SettingsRoute : Route
+
     @Serializable
     data class PlayerRoute(val mediaId: String) : Route
 }

core/src/main/java/hu/bbara/purefin/settings/SettingOption.kt

@@ -2,20 +2,50 @@ package hu.bbara.purefin.settings
 
 sealed interface SettingOption<T> {
     val key: String
+    val title: String
     val defaultValue: T
 }
 
 data class NumberSetting(
     override val key: String,
-    override val defaultValue: Double
+    override val title: String,
+    override val defaultValue: Double,
+    val valueRange: ClosedFloatingPointRange<Double> = 0.0..100.0,
 ) : SettingOption<Double>
 
 data class BooleanSetting(
     override val key: String,
+    override val title: String,
     override val defaultValue: Boolean
 ) : SettingOption<Boolean>
 
 data class StringSetting(
     override val key: String,
+    override val title: String,
     override val defaultValue: String
 ) : SettingOption<String>
+
+object SettingsOptions {
+    val defaultPlaybackSpeed = NumberSetting(
+        key = "default_playback_speed",
+        title = "Default playback speed",
+        defaultValue = 1.0,
+        valueRange = 0.5..2.0
+    )
+
+    val confirmMobileDataPlayback = BooleanSetting(
+        key = "confirm_mobile_data_playback",
+        title = "Confirm mobile data playback",
+        defaultValue = true
+    )
+
+    val preferredAudioLanguage = StringSetting(
+        key = "preferred_audio_language",
+        title = "Preferred audio language",
+        defaultValue = "English"
+    )
+
+    val numberSettings = listOf(defaultPlaybackSpeed)
+    val booleanSettings = listOf(confirmMobileDataPlayback)
+    val stringSettings = listOf(preferredAudioLanguage)
+}