✨ Auth モジュールを Compose Multiplatform 化

app/android/src/main/java/club/nito/app/NitoNavHost.kt

@@ -10,9 +10,9 @@ import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
 import androidx.navigation.navOptions
 import club.nito.core.model.AuthStatus
-import club.nito.feature.auth.navigateToSignIn
-import club.nito.feature.auth.signInNavigationRoute
-import club.nito.feature.auth.signInScreen
+import club.nito.feature.auth.loginNavigationRoute
+import club.nito.feature.auth.loginScreen
+import club.nito.feature.auth.navigateToLogin
 import club.nito.feature.schedule.navigateToSchedule
 import club.nito.feature.schedule.scheduleScreen
 import club.nito.feature.settings.navigateToSettings
@@ -45,11 +45,11 @@ fun NitoNavHost(
             onScheduleListClick = navController::navigateToSchedule,
             onSettingsClick = navController::navigateToSettings,
         )
-        signInScreen(
-            onSignedIn = {
+        loginScreen(
+            onLoggedIn = {
                 navController.navigateToTop(
                     navOptions = navOptions {
-                        popUpTo(signInNavigationRoute) {
+                        popUpTo(loginNavigationRoute) {
                             inclusive = true
                         }
                     },
@@ -59,7 +59,7 @@ fun NitoNavHost(
         scheduleScreen()
         settingsScreen(
             onSignedOut = {
-                navController.navigateToSignIn(
+                navController.navigateToLogin(
                     navOptions = navOptions {
                         popUpTo(topNavigationRoute) {
                             inclusive = true
@@ -77,7 +77,7 @@ private fun NavGraphBuilder.root(
 ) = composable(rootNavigationRoute) {
     LaunchedEffect(authStatus) {
         when (authStatus) {
-            AuthStatus.NotAuthenticated -> navController.navigateToSignIn(
+            AuthStatus.NotAuthenticated -> navController.navigateToLogin(
                 navOptions = navOptions {
                     popUpTo(rootNavigationRoute) {
                         inclusive = true

app/android/src/main/java/club/nito/app/di/FeatureModules.kt

@@ -1,10 +1,12 @@
 package club.nito.app.di
 
+import club.nito.feature.auth.di.authFeatureModule
 import club.nito.feature.schedule.di.scheduleFeatureModule
 import club.nito.feature.top.di.topFeatureModule
 import org.koin.core.module.Module
 
 val featureModules: List<Module> = listOf(
+    authFeatureModule,
     topFeatureModule,
     scheduleFeatureModule,
 )

feature/auth/build.gradle.kts

@@ -18,6 +18,9 @@ kotlin {
                 implementation(projects.core.designsystem)
 
                 implementation(libs.kotlinxCoroutinesCore)
+
+                implementation(libs.koin)
+                implementation(libs.koinCompose)
             }
         }
         androidMain {

feature/auth/src/androidMain/kotlin/club/nito/feature/auth/LoginNavigation.android.kt

@@ -0,0 +1,24 @@
+package club.nito.feature.auth
+
+import androidx.navigation.NavController
+import androidx.navigation.NavGraphBuilder
+import androidx.navigation.NavOptions
+import androidx.navigation.compose.composable
+
+fun NavController.navigateToLogin(navOptions: NavOptions? = null) {
+    this.navigate(loginNavigationRoute, navOptions)
+}
+
+fun NavGraphBuilder.loginScreen(
+    onLoggedIn: () -> Unit = {},
+    onRegisterClick: () -> Unit = {},
+) {
+    composable(
+        route = loginNavigationRoute,
+    ) {
+        LoginRoute(
+            onLoggedIn = onLoggedIn,
+            onRegisterClick = onRegisterClick,
+        )
+    }
+}

feature/auth/src/commonMain/kotlin/club/nito/feature/auth/LoginNavigation.kt

@@ -0,0 +1,25 @@
+package club.nito.feature.auth
+
+import moe.tlaster.precompose.navigation.NavOptions
+import moe.tlaster.precompose.navigation.Navigator
+import moe.tlaster.precompose.navigation.RouteBuilder
+
+const val loginNavigationRoute = "login_route"
+
+fun Navigator.navigateToLogin(navOptions: NavOptions? = null) {
+    this.navigate(loginNavigationRoute, navOptions)
+}
+
+fun RouteBuilder.loginScreen(
+    onLoggedIn: () -> Unit = {},
+    onRegisterClick: () -> Unit = {},
+) {
+    scene(
+        route = loginNavigationRoute,
+    ) {
+        LoginRoute(
+            onLoggedIn = onLoggedIn,
+            onRegisterClick = onRegisterClick,
+        )
+    }
+}

feature/auth/src/androidMain/kotlin/club/nito/feature/auth/SignInScreen.kt → feature/auth/src/commonMain/kotlin/club/nito/feature/auth/LoginScreen.kt

@@ -20,23 +20,23 @@ import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.text.input.PasswordVisualTransformation
 import androidx.compose.ui.unit.dp
-import androidx.hilt.navigation.compose.hiltViewModel
 import club.nito.core.designsystem.component.CenterAlignedTopAppBar
 import club.nito.core.designsystem.component.Scaffold
 import club.nito.core.designsystem.component.Text
+import club.nito.core.ui.koinStateMachine
 import club.nito.core.ui.message.SnackbarMessageEffect
 
 @Composable
-fun SignInRoute(
-    viewModel: SignInViewModel = hiltViewModel(),
-    onSignedIn: () -> Unit = {},
+fun LoginRoute(
+    viewModel: LoginScreenStateMachine = koinStateMachine(),
+    onLoggedIn: () -> Unit = {},
     onRegisterClick: () -> Unit = {},
 ) {
     viewModel.event.collectAsState(initial = null).value?.let {
         LaunchedEffect(it.hashCode()) {
             when (it) {
-                SignInEvent.NavigateToRegister -> onRegisterClick()
-                SignInEvent.SignedIn -> onSignedIn()
+                LoginScreenEvent.NavigateToRegister -> onRegisterClick()
+                LoginScreenEvent.LoggedIn -> onLoggedIn()
             }
             viewModel.consume(it)
         }
@@ -50,7 +50,7 @@ fun SignInRoute(
         userMessageStateHolder = viewModel.userMessageStateHolder,
     )
 
-    SignInScreen(
+    LoginScreen(
         uiState = uiState,
         snackbarHostState = snackbarHostState,
         dispatch = viewModel::dispatch,
@@ -59,10 +59,10 @@ fun SignInRoute(
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-private fun SignInScreen(
-    uiState: SignInScreenUiState,
+private fun LoginScreen(
+    uiState: LoginScreenUiState,
     snackbarHostState: SnackbarHostState,
-    dispatch: (SignInIntent) -> Unit = {},
+    dispatch: (LoginScreenIntent) -> Unit = {},
 ) {
     Scaffold(
         topBar = {
@@ -85,7 +85,7 @@ private fun SignInScreen(
             ) {
                 OutlinedTextField(
                     value = uiState.email,
-                    onValueChange = { dispatch(SignInIntent.ChangeInputEmail(it)) },
+                    onValueChange = { dispatch(LoginScreenIntent.ChangeInputEmail(it)) },
                     modifier = Modifier.fillMaxWidth(),
                     label = { Text(text = "Email") },
                     placeholder = { Text(text = "[email protected]") },
@@ -97,7 +97,7 @@ private fun SignInScreen(
                 )
                 OutlinedTextField(
                     value = uiState.password,
-                    onValueChange = { dispatch(SignInIntent.ChangeInputPassword(it)) },
+                    onValueChange = { dispatch(LoginScreenIntent.ChangeInputPassword(it)) },
                     modifier = Modifier.fillMaxWidth(),
                     label = { Text(text = "Password") },
                     placeholder = { Text(text = "password") },
@@ -111,7 +111,7 @@ private fun SignInScreen(
                 Button(
                     modifier = Modifier
                         .fillMaxWidth(),
-                    onClick = { dispatch(SignInIntent.ClickSignIn) },
+                    onClick = { dispatch(LoginScreenIntent.ClickSignIn) },
                     enabled = uiState.isSignInButtonEnabled,
                 ) {
                     Text(

feature/auth/src/commonMain/kotlin/club/nito/feature/auth/LoginScreenEvent.kt

@@ -0,0 +1,6 @@
+package club.nito.feature.auth
+
+sealed class LoginScreenEvent {
+    data object LoggedIn : LoginScreenEvent()
+    data object NavigateToRegister : LoginScreenEvent()
+}

feature/auth/src/commonMain/kotlin/club/nito/feature/auth/LoginScreenIntent.kt

@@ -0,0 +1,8 @@
+package club.nito.feature.auth
+
+sealed class LoginScreenIntent {
+    data class ChangeInputEmail(val email: String) : LoginScreenIntent()
+    data class ChangeInputPassword(val password: String) : LoginScreenIntent()
+    data object ClickSignIn : LoginScreenIntent()
+    data object ClickRegister : LoginScreenIntent()
+}

feature/auth/src/androidMain/kotlin/club/nito/feature/auth/SignInViewModel.kt → feature/auth/src/commonMain/kotlin/club/nito/feature/auth/LoginScreenStateMachine.kt

@@ -1,15 +1,13 @@
 package club.nito.feature.auth
 
-import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
 import club.nito.core.domain.ObserveAuthStatusUseCase
 import club.nito.core.domain.SignInUseCase
 import club.nito.core.model.AuthStatus
 import club.nito.core.model.ExecuteResult
 import club.nito.core.model.FetchSingleResult
+import club.nito.core.ui.StateMachine
 import club.nito.core.ui.buildUiState
 import club.nito.core.ui.message.UserMessageStateHolder
-import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharingStarted
@@ -18,68 +16,66 @@ import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
-import javax.inject.Inject
 
-@HiltViewModel
-class SignInViewModel @Inject constructor(
+class LoginScreenStateMachine internal constructor(
     observeAuthStatusUseCase: ObserveAuthStatusUseCase,
     private val signInUseCase: SignInUseCase,
     val userMessageStateHolder: UserMessageStateHolder,
-) : ViewModel(),
+) : StateMachine(),
     UserMessageStateHolder by userMessageStateHolder {
 
     private val email = MutableStateFlow("")
     private val password = MutableStateFlow("")
     private val authStatus = observeAuthStatusUseCase().stateIn(
-        scope = viewModelScope,
+        scope = stateMachineScope,
         started = SharingStarted.WhileSubscribed(5_000),
         initialValue = FetchSingleResult.Loading,
     )
 
-    val uiState: StateFlow<SignInScreenUiState> = buildUiState(
+    val uiState: StateFlow<LoginScreenUiState> = buildUiState(
         email,
         password,
         authStatus,
     ) { email, password, authStatus ->
-        SignInScreenUiState(
+        LoginScreenUiState(
             email = email,
             password = password,
             isSignInning = authStatus is FetchSingleResult.Loading,
         )
     }
 
-    private val _events = MutableStateFlow<List<SignInEvent>>(emptyList())
-    val event: Flow<SignInEvent?> = _events.map { it.firstOrNull() }
+    private val _events = MutableStateFlow<List<LoginScreenEvent>>(emptyList())
+    val event: Flow<LoginScreenEvent?> = _events.map { it.firstOrNull() }
 
     init {
-        viewModelScope.launch {
+        stateMachineScope.launch {
             authStatus.collectLatest {
                 if (it is FetchSingleResult.Success && it.data is AuthStatus.Authenticated) {
-                    _events.emit(listOf(SignInEvent.SignedIn))
+                    _events.emit(listOf(LoginScreenEvent.LoggedIn))
                 }
             }
         }
     }
 
-    fun dispatch(intent: SignInIntent) {
-        viewModelScope.launch {
+    fun dispatch(intent: LoginScreenIntent) {
+        stateMachineScope.launch {
             when (intent) {
-                is SignInIntent.ChangeInputEmail -> email.emit(intent.email)
-                is SignInIntent.ChangeInputPassword -> password.emit(intent.password)
-                SignInIntent.ClickSignIn -> {
+                is LoginScreenIntent.ChangeInputEmail -> email.emit(intent.email)
+                is LoginScreenIntent.ChangeInputPassword -> password.emit(intent.password)
+                LoginScreenIntent.ClickSignIn -> {
                     val result = signInUseCase(email.value, password.value)
                     if (result is ExecuteResult.Failure) {
                         userMessageStateHolder.showMessage("ログインに失敗しました")
                     }
                 }
 
-                SignInIntent.ClickRegister -> {}
+                LoginScreenIntent.ClickRegister -> {}
             }
         }
     }
 
-    fun consume(event: SignInEvent) {
-        viewModelScope.launch {
+    fun consume(event: LoginScreenEvent) {
+        stateMachineScope.launch {
             _events.emit(_events.value.filterNot { it == event })
         }
     }

feature/auth/src/androidMain/kotlin/club/nito/feature/auth/SignInScreenUiState.kt → feature/auth/src/commonMain/kotlin/club/nito/feature/auth/LoginScreenUiState.kt

@@ -1,6 +1,6 @@
 package club.nito.feature.auth
 
-data class SignInScreenUiState(
+data class LoginScreenUiState(
     val email: String,
     val password: String,
     val isSignInning: Boolean,