add settings viewmodel

composeApp/src/androidMain/kotlin/su/reya/coop/App.kt

@@ -39,6 +39,7 @@ import androidx.navigation3.ui.NavDisplay
 import kotlinx.coroutines.launch
 import su.reya.coop.repository.AccountRepository
 import su.reya.coop.repository.ChatRepository
+import su.reya.coop.repository.SettingsRepository
 import su.reya.coop.screens.ContactListScreen
 import su.reya.coop.screens.HomeScreen
 import su.reya.coop.screens.ImportScreen
@@ -56,11 +57,16 @@ import su.reya.coop.viewmodel.AccountViewModel
 import su.reya.coop.viewmodel.ChatScreenViewModel
 import su.reya.coop.viewmodel.ChatViewModel
 import su.reya.coop.viewmodel.ProfileCache
+import su.reya.coop.viewmodel.SettingsViewModel
 
 val LocalProfileCache = staticCompositionLocalOf<ProfileCache> {
     error("No ProfileCache provided")
 }
 
+val LocalSettings = staticCompositionLocalOf<Settings> {
+    error("No Settings provided")
+}
+
 val LocalSnackbarHostState = staticCompositionLocalOf<SnackbarHostState> {
     error("No SnackbarHostState provided")
 }
@@ -79,6 +85,7 @@ fun App(
     profileCache: ProfileCache,
     accountRepository: AccountRepository,
     chatRepository: ChatRepository,
+    settingsRepository: SettingsRepository,
 ) {
     val viewModelFactory = remember {
         object : ViewModelProvider.Factory {
@@ -92,6 +99,10 @@ fun App(
                         accountRepository
                     )
 
+                    modelClass.isAssignableFrom(SettingsViewModel::class.java) -> SettingsViewModel(
+                        settingsRepository
+                    )
+
                     else -> throw IllegalArgumentException("Unknown ViewModel class")
                 }
                 @Suppress("UNCHECKED_CAST")
@@ -102,6 +113,7 @@ fun App(
 
     val accountViewModel: AccountViewModel = viewModel(factory = viewModelFactory)
     val chatViewModel: ChatViewModel = viewModel(factory = viewModelFactory)
+    val settingsViewModel: SettingsViewModel = viewModel(factory = viewModelFactory)
 
     val context = LocalContext.current
     val activity = context as? ComponentActivity
@@ -113,19 +125,24 @@ fun App(
     val accountState by accountViewModel.state.collectAsStateWithLifecycle()
     val signerRequired = accountState.signerRequired
 
+    // Get the settings
+    val settings by settingsViewModel.settings.collectAsStateWithLifecycle()
+
     // Snackbar
     val snackbarHostState = remember { SnackbarHostState() }
 
     // Check if dark theme enabled
-    val darkMode = isSystemInDarkTheme()
+    val darkMode = when (settings.theme) {
+        Theme.Light -> false
+        Theme.Dark -> true
+        Theme.System -> isSystemInDarkTheme()
+    }
 
     // Enabled the dynamic color scheme
     val colorScheme = when {
         // Enable the dynamic color scheme for Android 12+
-        Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
-            if (isSystemInDarkTheme()) dynamicDarkColorScheme(context) else dynamicLightColorScheme(
-                context
-            )
+        settings.dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            if (darkMode) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
         }
         // When dark mode is enabled, use the dark color scheme
         darkMode -> darkColorScheme()
@@ -190,11 +207,11 @@ fun App(
     ) {
         CompositionLocalProvider(
             LocalProfileCache provides profileCache,
+            LocalSettings provides settings,
             LocalSnackbarHostState provides snackbarHostState,
             LocalNavigator provides navigator,
             LocalScanResult provides qrScanResult,
         ) {
-
             NavDisplay(
                 backStack = backStack,
                 onBack = {

composeApp/src/androidMain/kotlin/su/reya/coop/MainActivity.kt

@@ -14,6 +14,7 @@ import su.reya.coop.nostr.NostrManager
 import su.reya.coop.repository.AccountRepository
 import su.reya.coop.repository.ChatRepository
 import su.reya.coop.repository.MediaRepository
+import su.reya.coop.repository.SettingsRepository
 import su.reya.coop.viewmodel.ProfileCache
 import kotlin.system.exitProcess
 
@@ -25,16 +26,28 @@ class MainActivity : ComponentActivity() {
     private val profileCache by lazy { ProfileCache(NostrManager.instance) }
     private val scope = MainScope()
 
+    private val settingsRepository by lazy {
+        val storage = AppStore(this@MainActivity)
+        SettingsRepository(storage, scope)
+    }
+
     private val accountRepository by lazy {
         val storage = AppStore(this@MainActivity)
-        val mediaRepository = MediaRepository()
+        val mediaRepository = MediaRepository(settingsRepository)
         val androidSigner = AndroidExternalSigner(this@MainActivity, externalSignerLauncher)
-        AccountRepository(NostrManager.instance, storage, mediaRepository, scope, androidSigner)
+        AccountRepository(
+            NostrManager.instance,
+            storage,
+            mediaRepository,
+            settingsRepository,
+            scope,
+            androidSigner
+        )
     }
 
     private val chatRepository by lazy {
-        val mediaRepository = MediaRepository()
-        ChatRepository(NostrManager.instance, mediaRepository, scope)
+        val mediaRepository = MediaRepository(settingsRepository)
+        ChatRepository(NostrManager.instance, mediaRepository, settingsRepository, scope)
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -82,6 +95,7 @@ class MainActivity : ComponentActivity() {
                 profileCache = profileCache,
                 accountRepository = accountRepository,
                 chatRepository = chatRepository,
+                settingsRepository = settingsRepository,
             )
         }
     }

shared/src/commonMain/kotlin/su/reya/coop/Settings.kt

@@ -0,0 +1,22 @@
+package su.reya.coop
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Settings(
+    val theme: Theme = Theme.System,
+    val dynamicColor: Boolean = true,
+    val media: Media = Media.AlwaysEnabled,
+    val screening: Boolean = true,
+    val blossomServer: String? = "https://blossom.band",
+)
+
+@Serializable
+enum class Theme {
+    Light, Dark, System
+}
+
+@Serializable
+enum class Media {
+    Disabled, DisabledForMobileData, AlwaysEnabled
+}

shared/src/commonMain/kotlin/su/reya/coop/repository/AccountRepository.kt

@@ -57,6 +57,7 @@ class AccountRepository(
     private val nostr: Nostr,
     private val storage: AppStorage,
     private val mediaRepository: MediaRepository,
+    private val settingsRepository: SettingsRepository,
     private val scope: CoroutineScope,
     private val externalSignerHandler: ExternalSignerHandler? = null,
     private val defaultDispatcher: CoroutineDispatcher = Dispatchers.Default,
@@ -75,9 +76,7 @@ class AccountRepository(
 
     @OptIn(ExperimentalCoroutinesApi::class)
     val currentUserProfile: StateFlow<Profile?> = nostr.signer.publicKeyFlow
-        .flatMapLatest { pubkey ->
-            if (pubkey != null) currentUserProfileFlow(pubkey) else flowOf(null)
-        }
+        .flatMapLatest { if (it != null) currentUserProfileFlow(it) else flowOf(null) }
         .stateIn(scope, SharingStarted.WhileSubscribed(5000), null)
 
     init {

shared/src/commonMain/kotlin/su/reya/coop/repository/ChatRepository.kt

@@ -36,6 +36,7 @@ data class ChatState(
 class ChatRepository(
     private val nostr: Nostr,
     private val mediaRepository: MediaRepository,
+    private val settingsRepository: SettingsRepository,
     private val scope: CoroutineScope,
     private val defaultDispatcher: CoroutineDispatcher = Dispatchers.Default,
 ) : ErrorHost by createErrorHost() {

shared/src/commonMain/kotlin/su/reya/coop/repository/MediaRepository.kt

@@ -8,7 +8,9 @@ import kotlinx.serialization.json.Json
 import rust.nostr.sdk.AsyncNostrSigner
 import su.reya.coop.blossom.BlossomClient
 
-class MediaRepository {
+class MediaRepository(
+    private val settingsRepository: SettingsRepository
+) {
     private val httpClient = HttpClient {
         install(ContentNegotiation) {
             json(Json {
@@ -25,12 +27,9 @@ class MediaRepository {
         contentType: String? = "image/jpeg"
     ): String? {
         return try {
-            val blossom = BlossomClient(url = "https://blossom.band", client = httpClient)
-            val descriptor = blossom.upload(
-                file = file,
-                contentType = contentType,
-                signer = signer,
-            )
+            val url = settingsRepository.settings.value.blossomServer ?: "https://blossom.band"
+            val blossom = BlossomClient(url, httpClient)
+            val descriptor = blossom.upload(file = file, contentType = contentType, signer = signer)
             descriptor?.url
         } catch (e: CancellationException) {
             throw e

shared/src/commonMain/kotlin/su/reya/coop/repository/SettingsRepository.kt

@@ -0,0 +1,61 @@
+package su.reya.coop.repository
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+import su.reya.coop.AppStorage
+import su.reya.coop.Settings
+
+class SettingsRepository(
+    private val storage: AppStorage,
+    private val scope: CoroutineScope
+) {
+    companion object {
+        private const val KEY_SETTINGS = "app_settings"
+    }
+
+    private val json = Json {
+        ignoreUnknownKeys = true
+        encodeDefaults = true
+    }
+
+    private val _settings = MutableStateFlow(Settings())
+    val settings: StateFlow<Settings> = _settings.asStateFlow()
+
+    init {
+        scope.launch {
+            _settings.value = load()
+        }
+    }
+
+    fun update(transform: (Settings) -> Settings) {
+        scope.launch {
+            val newSettings = transform(_settings.value)
+            _settings.value = newSettings
+            save(newSettings)
+        }
+    }
+
+    private suspend fun save(settings: Settings) {
+        val jsonString = json.encodeToString(settings)
+        storage.set(KEY_SETTINGS, jsonString)
+    }
+
+    private suspend fun load(): Settings {
+        val jsonString = storage.get(KEY_SETTINGS)
+        return if (jsonString != null) {
+            try {
+                json.decodeFromString<Settings>(jsonString)
+            } catch (_: Exception) {
+                Settings()
+            }
+        } else {
+            Settings()
+        }
+    }
+}

shared/src/commonMain/kotlin/su/reya/coop/viewmodel/SettingsViewModel.kt

@@ -0,0 +1,16 @@
+package su.reya.coop.viewmodel
+
+import androidx.lifecycle.ViewModel
+import kotlinx.coroutines.flow.StateFlow
+import su.reya.coop.Settings
+import su.reya.coop.repository.SettingsRepository
+
+class SettingsViewModel(
+    private val repository: SettingsRepository
+) : ViewModel() {
+    val settings: StateFlow<Settings> = repository.settings
+
+    fun update(transform: (Settings) -> Settings) {
+        repository.update(transform)
+    }
+}