feat: quick login implementation (#118)

* feat: quick login implementation

* chore: update from PR feedback

core-api/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/core/api/provider/DefaultServiceProvider.kt

@@ -62,8 +62,10 @@ internal class DefaultServiceProvider : ServiceProvider {
     }
 
     override fun changeInstance(value: String) {
-        currentInstance = value
+        if (currentInstance != value) {
-        reinitialize()
+            currentInstance = value
+            reinitialize()
+        }
     }
 
     private fun reinitialize() {

core-commonui/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/core/commonui/drawer/ModalDrawerContent.kt

@@ -18,6 +18,7 @@ import androidx.compose.material.ExperimentalMaterialApi
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowDropDown
 import androidx.compose.material.icons.filled.Bookmarks
+import androidx.compose.material.icons.filled.Clear
 import androidx.compose.material.icons.filled.ManageAccounts
 import androidx.compose.material.pullrefresh.PullRefreshIndicator
 import androidx.compose.material.pullrefresh.pullRefresh
@@ -131,7 +132,13 @@ object ModalDrawerContent : Tab {
                 user = uiState.user,
                 instance = uiState.instance,
                 autoLoadImages = uiState.autoLoadImages,
-                onOpenChangeInstance = {
+                onOpenChangeInstance = rememberCallback(model) {
+                    // suggests current instance
+                    model.reduce(
+                        ModalDrawerMviModel.Intent.ChangeInstanceName(
+                            uiState.instance.orEmpty()
+                        )
+                    )
                     changeInstanceDialogOpen = true
                 },
             )
@@ -432,6 +439,19 @@ private fun ChangeInstanceDialog(
                         )
                     }
                 },
+                trailingIcon = {
+                    if (instanceName.isNotEmpty()) {
+                        Icon(
+                            modifier = Modifier.onClick(
+                                rememberCallback {
+                                    onChangeInstanceName?.invoke("")
+                                },
+                            ),
+                            imageVector = Icons.Default.Clear,
+                            contentDescription = null,
+                        )
+                    }
+                },
             )
 
             Button(

core-commonui/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/core/commonui/drawer/ModalDrawerViewModel.kt

@@ -12,6 +12,7 @@ import com.github.diegoberaldin.raccoonforlemmy.domain.lemmy.repository.SiteRepo
 import com.github.diegoberaldin.raccoonforlemmy.resources.MR
 import dev.icerock.moko.resources.desc.desc
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.FlowPreview
 import kotlinx.coroutines.IO
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.debounce
@@ -34,6 +35,7 @@ class ModalDrawerViewModel(
 ) : ModalDrawerMviModel,
     MviModel<ModalDrawerMviModel.Intent, ModalDrawerMviModel.UiState, ModalDrawerMviModel.Effect> by mvi {
 
+    @OptIn(FlowPreview::class)
     override fun onStarted() {
         mvi.onStarted()
         mvi.scope?.launch(Dispatchers.Main) {

domain-identity/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/domain/identity/di/IdentityModule.kt

@@ -19,6 +19,7 @@ val coreIdentityModule = module {
     single<ApiConfigurationRepository> {
         DefaultApiConfigurationRepository(
             serviceProvider = get(named("default")),
+            keyStore = get(),
         )
     }
     single<IdentityRepository> {

domain-identity/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/domain/identity/repository/DefaultApiConfigurationRepository.kt

@@ -1,6 +1,7 @@
 package com.github.diegoberaldin.raccoonforlemmy.domain.identity.repository
 
 import com.github.diegoberaldin.raccoonforlemmy.core.api.provider.ServiceProvider
+import com.github.diegoberaldin.raccoonforlemmy.core.preferences.TemporaryKeyStore
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.delay
@@ -10,12 +11,21 @@ import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.isActive
 
+private const val KEY_LAST_INSTANCE = "lastInstance"
+
 internal class DefaultApiConfigurationRepository(
     private val serviceProvider: ServiceProvider,
+    private val keyStore: TemporaryKeyStore,
 ) : ApiConfigurationRepository {
 
     private val scope = CoroutineScope(SupervisorJob())
 
+    init {
+        val instance = keyStore[KEY_LAST_INSTANCE, ""]
+            .takeIf { it.isNotEmpty() } ?: serviceProvider.currentInstance
+        changeInstance(instance)
+    }
+
     override val instance = channelFlow {
         while (isActive) {
             val value = serviceProvider.currentInstance
@@ -30,5 +40,6 @@ internal class DefaultApiConfigurationRepository(
 
     override fun changeInstance(value: String) {
         serviceProvider.changeInstance(value)
+        keyStore.save(KEY_LAST_INSTANCE, value)
     }
 }

feature-profile/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/feature/profile/di/ProfileModule.kt

@@ -27,6 +27,7 @@ val profileTabModule = module {
             identityRepository = get(),
             siteRepository = get(),
             communityRepository = get(),
+            apiConfigurationRepository = get(),
         )
     }
     factory<ProfileLoggedMviModel> {

feature-profile/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/feature/profile/login/LoginBottomSheet.kt

@@ -13,6 +13,7 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Clear
 import androidx.compose.material.icons.filled.HelpOutline
 import androidx.compose.material.icons.filled.Visibility
 import androidx.compose.material.icons.filled.VisibilityOff
@@ -53,6 +54,7 @@ import com.github.diegoberaldin.raccoonforlemmy.core.commonui.di.getNavigationCo
 import com.github.diegoberaldin.raccoonforlemmy.core.persistence.di.getSettingsRepository
 import com.github.diegoberaldin.raccoonforlemmy.core.utils.onClick
 import com.github.diegoberaldin.raccoonforlemmy.core.utils.rememberCallback
+import com.github.diegoberaldin.raccoonforlemmy.core.utils.rememberCallbackArgs
 import com.github.diegoberaldin.raccoonforlemmy.feature.profile.di.getLoginBottomSheetViewModel
 import com.github.diegoberaldin.raccoonforlemmy.resources.MR
 import dev.icerock.moko.resources.compose.localized
@@ -145,6 +147,7 @@ class LoginBottomSheet : Screen {
                 val passwordFocusRequester = remember { FocusRequester() }
                 val tokenFocusRequester = remember { FocusRequester() }
 
+                // instance name
                 TextField(
                     modifier = Modifier.focusRequester(instanceFocusRequester),
                     label = {
@@ -163,7 +166,7 @@ class LoginBottomSheet : Screen {
                         autoCorrect = false,
                         imeAction = ImeAction.Next,
                     ),
-                    onValueChange = { value ->
+                    onValueChange = rememberCallbackArgs(model) { value ->
                         model.reduce(LoginBottomSheetMviModel.Intent.SetInstanceName(value))
                     },
                     supportingText = {
@@ -174,8 +177,24 @@ class LoginBottomSheet : Screen {
                             )
                         }
                     },
+                    trailingIcon = {
+                        if (uiState.instanceName.isNotEmpty()) {
+                            Icon(
+                                modifier = Modifier.onClick(
+                                    rememberCallback(model) {
+                                        model.reduce(
+                                            LoginBottomSheetMviModel.Intent.SetInstanceName("")
+                                        )
+                                    },
+                                ),
+                                imageVector = Icons.Default.Clear,
+                                contentDescription = null,
+                            )
+                        }
+                    },
                 )
 
+                // user name
                 TextField(
                     modifier = Modifier.focusRequester(usernameFocusRequester),
                     label = {
@@ -194,7 +213,7 @@ class LoginBottomSheet : Screen {
                         autoCorrect = false,
                         imeAction = ImeAction.Next,
                     ),
-                    onValueChange = { value ->
+                    onValueChange = rememberCallbackArgs(model) { value ->
                         model.reduce(LoginBottomSheetMviModel.Intent.SetUsername(value))
                     },
                     supportingText = {
@@ -207,6 +226,7 @@ class LoginBottomSheet : Screen {
                     },
                 )
 
+                // password
                 var transformation: VisualTransformation by remember {
                     mutableStateOf(PasswordVisualTransformation())
                 }
@@ -227,7 +247,7 @@ class LoginBottomSheet : Screen {
                         keyboardType = KeyboardType.Password,
                         imeAction = ImeAction.Next,
                     ),
-                    onValueChange = { value ->
+                    onValueChange = rememberCallbackArgs(model) { value ->
                         model.reduce(LoginBottomSheetMviModel.Intent.SetPassword(value))
                     },
                     visualTransformation = transformation,
@@ -262,6 +282,7 @@ class LoginBottomSheet : Screen {
                     },
                 )
 
+                // TOTP 2FA token
                 TextField(
                     modifier = Modifier.focusRequester(tokenFocusRequester),
                     label = {
@@ -282,7 +303,7 @@ class LoginBottomSheet : Screen {
                         keyboardType = KeyboardType.Password,
                         imeAction = ImeAction.Done,
                     ),
-                    onValueChange = { value ->
+                    onValueChange = rememberCallbackArgs(model) { value ->
                         model.reduce(LoginBottomSheetMviModel.Intent.SetTotp2faToken(value))
                     },
                     visualTransformation = PasswordVisualTransformation(),
@@ -290,7 +311,7 @@ class LoginBottomSheet : Screen {
                 Spacer(modifier = Modifier.height(Spacing.m))
                 Button(
                     modifier = Modifier.align(Alignment.CenterHorizontally),
-                    onClick = {
+                    onClick = rememberCallback(model) {
                         model.reduce(LoginBottomSheetMviModel.Intent.Confirm)
                     },
                 ) {

feature-profile/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/feature/profile/login/LoginBottomSheetViewModel.kt

@@ -3,6 +3,7 @@ package com.github.diegoberaldin.raccoonforlemmy.feature.profile.login
 import com.github.diegoberaldin.raccoonforlemmy.core.architecture.DefaultMviModel
 import com.github.diegoberaldin.raccoonforlemmy.core.architecture.MviModel
 import com.github.diegoberaldin.raccoonforlemmy.core.persistence.repository.AccountRepository
+import com.github.diegoberaldin.raccoonforlemmy.domain.identity.repository.ApiConfigurationRepository
 import com.github.diegoberaldin.raccoonforlemmy.domain.identity.repository.IdentityRepository
 import com.github.diegoberaldin.raccoonforlemmy.domain.identity.usecase.LoginUseCase
 import com.github.diegoberaldin.raccoonforlemmy.domain.lemmy.data.SearchResultType
@@ -17,6 +18,7 @@ import kotlinx.coroutines.launch
 class LoginBottomSheetViewModel(
     private val mvi: DefaultMviModel<LoginBottomSheetMviModel.Intent, LoginBottomSheetMviModel.UiState, LoginBottomSheetMviModel.Effect>,
     private val login: LoginUseCase,
+    private val apiConfigurationRepository: ApiConfigurationRepository,
     private val identityRepository: IdentityRepository,
     private val accountRepository: AccountRepository,
     private val siteRepository: SiteRepository,
@@ -24,6 +26,14 @@ class LoginBottomSheetViewModel(
 ) : LoginBottomSheetMviModel,
     MviModel<LoginBottomSheetMviModel.Intent, LoginBottomSheetMviModel.UiState, LoginBottomSheetMviModel.Effect> by mvi {
 
+    override fun onStarted() {
+        mvi.onStarted()
+        val instance = apiConfigurationRepository.instance.value
+        mvi.updateState {
+            it.copy(instanceName = instance)
+        }
+    }
+
     override fun reduce(intent: LoginBottomSheetMviModel.Intent) {
         when (intent) {
             LoginBottomSheetMviModel.Intent.Confirm -> submit()

shared/src/commonMain/kotlin/com/github/diegoberaldin/raccoonforlemmy/App.kt

@@ -85,7 +85,7 @@ fun App() {
         val currentSettings = settingsRepository.getSettings(accountId)
         settingsRepository.changeCurrentSettings(currentSettings)
         val lastActiveAccount = accountRepository.getActive()
-        val lastInstance = lastActiveAccount?.instance
+        val lastInstance = lastActiveAccount?.instance?.takeIf { it.isNotEmpty() }
         if (lastInstance != null) {
             apiConfigurationRepository.changeInstance(lastInstance)
         }
@@ -134,41 +134,39 @@ fun App() {
     val uiFontScale by themeRepository.uiFontScale.collectAsState()
     val navigationCoordinator = remember { getNavigationCoordinator() }
     LaunchedEffect(navigationCoordinator) {
-        navigationCoordinator.deepLinkUrl
+        navigationCoordinator.deepLinkUrl.debounce(750).onEach { url ->
-            .debounce(750)
+            val community = getCommunityFromUrl(url)
-            .onEach { url ->
+            val user = getUserFromUrl(url)
-                val community = getCommunityFromUrl(url)
+            val postAndInstance = getPostFromUrl(url)
-                val user = getUserFromUrl(url)
+            val newScreen = when {
-                val postAndInstance = getPostFromUrl(url)
+                community != null -> {
-                val newScreen = when {
+                    CommunityDetailScreen(
-                    community != null -> {
+                        community = community,
-                        CommunityDetailScreen(
+                        otherInstance = community.host,
-                            community = community,
+                    )
-                            otherInstance = community.host,
-                        )
-                    }
-
-                    user != null -> {
-                        UserDetailScreen(
-                            user = user,
-                            otherInstance = user.host,
-                        )
-                    }
-
-                    postAndInstance != null -> {
-                        val (post, otherInstance) = postAndInstance
-                        PostDetailScreen(
-                            post = post,
-                            otherInstance = otherInstance,
-                        )
-                    }
-
-                    else -> null
                 }
-                if (newScreen != null) {
+
-                    navigationCoordinator.getRootNavigator()?.push(newScreen)
+                user != null -> {
+                    UserDetailScreen(
+                        user = user,
+                        otherInstance = user.host,
+                    )
                 }
-            }.launchIn(this)
+
+                postAndInstance != null -> {
+                    val (post, otherInstance) = postAndInstance
+                    PostDetailScreen(
+                        post = post,
+                        otherInstance = otherInstance,
+                    )
+                }
+
+                else -> null
+            }
+            if (newScreen != null) {
+                navigationCoordinator.getRootNavigator()?.push(newScreen)
+            }
+        }.launchIn(this)
     }
 
     val drawerState = rememberDrawerState(initialValue = DrawerValue.Closed)
@@ -224,8 +222,7 @@ fun App() {
         ) {
             BottomSheetNavigator(
                 sheetShape = RoundedCornerShape(
-                    topStart = CornerSize.xl,
+                    topStart = CornerSize.xl, topEnd = CornerSize.xl
-                    topEnd = CornerSize.xl
                 ),
                 sheetBackgroundColor = MaterialTheme.colorScheme.background,
             ) { bottomNavigator ->
@@ -240,13 +237,10 @@ fun App() {
                         }
                     },
                 ) {
-                    Navigator(
+                    Navigator(screen = MainScreen, onBackPressed = {
-                        screen = MainScreen,
+                        val callback = navigationCoordinator.getCanGoBackCallback()
-                        onBackPressed = {
+                        callback?.let { it() } ?: true
-                            val callback = navigationCoordinator.getCanGoBackCallback()
+                    }) { navigator ->
-                            callback?.let { it() } ?: true
-                        }
-                    ) { navigator ->
                         LaunchedEffect(Unit) {
                             navigationCoordinator.setRootNavigator(navigator)
                         }