Store, Navigation

composeApp/build.gradle.kts

@@ -1,5 +1,4 @@
 import org.jetbrains.compose.desktop.application.dsl.TargetFormat
-import org.jetbrains.compose.ExperimentalComposeLibrary
 
 plugins {
     alias(libs.plugins.kotlinMultiplatform)
@@ -15,9 +14,9 @@ kotlin {
             }
         }
     }
-    
+
     jvm("desktop")
-    
+
     listOf(
         iosX64(),
         iosArm64(),
@@ -28,29 +27,18 @@ kotlin {
             isStatic = true
         }
     }
-    
+
     sourceSets {
         val desktopMain by getting
-
-        androidMain.dependencies {
-            implementation(libs.compose.ui)
-            implementation(libs.compose.ui.tooling.preview)
-            implementation(libs.androidx.activity.compose)
-        }
+
         desktopMain.dependencies {
             implementation(compose.desktop.currentOs)
         }
+
         commonMain.dependencies {
             implementation(project(":core:core"))
             implementation(project(":core:ui"))
             implementation(project(":feature:home"))
-
-            implementation(projects.shared)
-            implementation(compose.runtime)
-            implementation(compose.foundation)
-            implementation(compose.material)
-            @OptIn(ExperimentalComposeLibrary::class)
-            implementation(compose.components.resources)
         }
     }
 }

composeApp/src/commonMain/kotlin/App.kt

@@ -1,9 +1,36 @@
 import androidx.compose.runtime.Composable
+import com.stslex.core.core.coreModule
 import com.stslex.core.ui.theme.AppTheme
+import com.stslex.feature.home.di.homeModule
+import di.appModule
+import org.koin.compose.KoinApplication
+import org.koin.dsl.KoinAppDeclaration
 
 @Composable
 fun App() {
-    AppTheme {
-        InitialApp()
+    SetupKoin {
+        AppTheme {
+            InitialApp()
+        }
     }
 }
+
+@Composable
+fun SetupKoin(
+    content: @Composable () -> Unit
+) {
+    KoinApplication(
+        application = setupModules(),
+        content = content
+    )
+}
+
+private fun setupModules(): KoinAppDeclaration = {
+    modules(
+        listOf(
+            appModule,
+            coreModule,
+            homeModule,
+        )
+    )
+}

composeApp/src/commonMain/kotlin/AppNavigatorImpl.kt

@@ -0,0 +1,19 @@
+import cafe.adriel.voyager.navigator.Navigator
+import com.stslex.core.ui.navigation.AppNavigator
+import com.stslex.core.ui.navigation.AppScreen
+import com.stslex.feature.home.ui.HomeScreen
+import com.stslex.feature.home.ui.SecondScreen
+
+class AppNavigatorImpl(
+    private val navigator: Lazy<Navigator>
+) : AppNavigator {
+
+    override fun navigate(
+        screen: AppScreen
+    ) {
+        when (screen) {
+            AppScreen.Home -> navigator.value.push(HomeScreen)
+            is AppScreen.SecondScreen -> navigator.value.push(SecondScreen(screen.text))
+        }
+    }
+}

composeApp/src/commonMain/kotlin/InitialApp.kt

@@ -1,7 +1,28 @@
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
 import androidx.compose.runtime.Composable
-import com.stslex.feature.home.HomeScreen
+import androidx.compose.ui.Modifier
+import cafe.adriel.voyager.navigator.Navigator
+import com.stslex.feature.home.ui.HomeScreen
 
 @Composable
-fun InitialApp() {
-    HomeScreen()
-}
+fun InitialApp(
+    modifier: Modifier = Modifier
+) {
+    Scaffold(
+        modifier = modifier
+            .fillMaxSize()
+            .background(MaterialTheme.colorScheme.background)
+    ) { paddingValues ->
+        Box(
+            modifier = Modifier.fillMaxSize()
+                .padding(paddingValues)
+        ) {
+            Navigator(HomeScreen)
+        }
+    }
+}

composeApp/src/commonMain/kotlin/di/appModule.kt

@@ -0,0 +1,13 @@
+package di
+
+import AppNavigatorImpl
+import com.stslex.core.ui.navigation.AppNavigator
+import org.koin.dsl.module
+
+val appModule = module {
+    single<AppNavigator> {
+        AppNavigatorImpl(
+            lazyOf(get())
+        )
+    }
+}

core/core/build.gradle.kts

@@ -14,7 +14,7 @@ kotlin {
     }
 
     jvm("desktop")
-    
+
     listOf(
         iosX64(),
         iosArm64(),
@@ -27,20 +27,16 @@ kotlin {
     }
 
     sourceSets {
-        val desktopMain by getting
-
         commonMain.dependencies {
             implementation(libs.kermit)
-            implementation(projects.shared)
             implementation(compose.runtime)
             implementation(compose.foundation)
+            api(libs.koin.core)
+            api(libs.koin.compose)
         }
         commonTest.dependencies {
             implementation(libs.kotlin.test)
         }
-        desktopMain.dependencies {
-            implementation(compose.desktop.currentOs)
-        }
     }
 }
 

core/core/src/commonMain/kotlin/com/stslex/core/core/CoreModule.kt

@@ -0,0 +1,8 @@
+package com.stslex.core.core
+
+import org.koin.core.module.dsl.singleOf
+import org.koin.dsl.module
+
+val coreModule = module {
+    singleOf<AppDispatcher>(::AppDispatcherImpl)
+}

core/ui/build.gradle.kts

@@ -31,21 +31,30 @@ kotlin {
     sourceSets {
         val desktopMain by getting
 
+        desktopMain.dependencies {
+            implementation(compose.desktop.currentOs)
+        }
+
         commonMain.dependencies {
             implementation(project(":core:core"))
 
-            implementation(projects.shared)
-            implementation(compose.runtime)
-            implementation(compose.foundation)
+            api(compose.runtime)
+            api(compose.foundation)
             implementation(compose.material)
+            api(compose.material3)
             @OptIn(ExperimentalComposeLibrary::class)
-            implementation(compose.components.resources)
+            api(compose.components.resources)
+            api(libs.bundles.voyager)
         }
         commonTest.dependencies {
             implementation(libs.kotlin.test)
         }
-        desktopMain.dependencies {
-            implementation(compose.desktop.currentOs)
+        androidMain.dependencies {
+            api(libs.compose.ui)
+            api(libs.compose.ui.tooling.preview)
+            api(libs.androidx.activity.compose)
+            api(libs.koin.android)
+            api(libs.koin.androidx.compose)
         }
     }
 }

core/ui/src/androidMain/kotlin/com/stslex/core/ui/base/ViewModel.android.kt

@@ -0,0 +1,27 @@
+package com.stslex.core.ui.base
+
+import androidx.compose.runtime.Composable
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.CoroutineScope
+import org.koin.androidx.compose.koinViewModel
+import org.koin.androidx.viewmodel.dsl.viewModel
+import org.koin.core.definition.Definition
+import org.koin.core.definition.KoinDefinition
+import org.koin.core.module.Module
+import org.koin.core.qualifier.Qualifier
+import com.stslex.core.ui.base.ViewModel as VM
+
+actual open class ViewModel : ViewModel() {
+
+    actual val scope: CoroutineScope
+        get() = viewModelScope
+}
+
+actual inline fun <reified T : VM> Module.viewModelDefinition(
+    qualifier: Qualifier?,
+    noinline definition: Definition<T>,
+): KoinDefinition<T> = viewModel(qualifier = qualifier, definition = definition)
+
+@Composable
+actual inline fun <reified T : VM> getViewModel(): T = koinViewModel()

core/ui/src/commonMain/kotlin/com/stslex/core/ui/base/ViewModel.kt

@@ -0,0 +1,36 @@
+package com.stslex.core.ui.base
+
+import androidx.compose.runtime.Composable
+import cafe.adriel.voyager.navigator.LocalNavigator
+import cafe.adriel.voyager.navigator.currentOrThrow
+import kotlinx.coroutines.CoroutineScope
+import org.koin.compose.getKoin
+import org.koin.core.definition.Definition
+import org.koin.core.definition.KoinDefinition
+import org.koin.core.module.Module
+import org.koin.core.qualifier.Qualifier
+import org.koin.dsl.module
+
+expect open class ViewModel() {
+
+    val scope: CoroutineScope
+}
+
+expect inline fun <reified T : ViewModel> Module.viewModelDefinition(
+    qualifier: Qualifier? = null,
+    noinline definition: Definition<T>
+): KoinDefinition<T>
+
+@Composable
+expect inline fun <reified T : ViewModel> getViewModel(): T
+
+@Composable
+inline fun <reified VM : ViewModel> rememberStore(): VM {
+    val navigator = LocalNavigator.currentOrThrow
+    val module = module { single { navigator } }
+    getKoin().loadModules(
+        modules = listOf(module),
+        allowOverride = true,
+    )
+    return getViewModel()
+}

core/ui/src/commonMain/kotlin/com/stslex/core/ui/mvi/BaseStore.kt

@@ -3,11 +3,12 @@ package com.stslex.core.ui.mvi
 import com.stslex.core.core.AppDispatcher
 import com.stslex.core.core.Logger
 import com.stslex.core.core.coroutineExceptionHandler
-import com.stslex.core.ui.navigation.Router
+import com.stslex.core.ui.base.ViewModel
 import com.stslex.core.ui.mvi.Store.Action
 import com.stslex.core.ui.mvi.Store.Event
 import com.stslex.core.ui.mvi.Store.Navigation
 import com.stslex.core.ui.mvi.Store.State
+import com.stslex.core.ui.navigation.Router
 import kotlinx.coroutines.CoroutineExceptionHandler
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
@@ -26,15 +27,13 @@ abstract class BaseStore<S : State, E : Event, A : Action, N : Navigation>(
     private val router: Router<N>,
     private val appDispatcher: AppDispatcher,
     initialState: S
-) {
+) : Store, ViewModel() {
 
     abstract fun sendAction(action: A)
 
     private val _state: MutableStateFlow<S> = MutableStateFlow(initialState)
     val state: StateFlow<S> = _state.asStateFlow()
 
-    private val scope: CoroutineScope = CoroutineScope(appDispatcher.default)
-
     private fun exceptionHandler(
         onError: suspend (cause: Throwable) -> Unit = {},
     ) = CoroutineExceptionHandler { coroutineContext, throwable ->

core/ui/src/commonMain/kotlin/com/stslex/core/ui/navigation/AppNavigator.kt

@@ -0,0 +1,6 @@
+package com.stslex.core.ui.navigation
+
+interface AppNavigator {
+
+    fun navigate(screen: AppScreen)
+}

core/ui/src/commonMain/kotlin/com/stslex/core/ui/navigation/AppScreen.kt

@@ -0,0 +1,8 @@
+package com.stslex.core.ui.navigation
+
+sealed interface AppScreen {
+
+    data object Home : AppScreen
+
+    data class SecondScreen(val text: String) : AppScreen
+}

core/ui/src/commonMain/kotlin/com/stslex/core/ui/navigation/Router.kt

@@ -4,4 +4,5 @@ import com.stslex.core.ui.mvi.Store
 
 fun interface Router<in E : Store.Navigation> {
     operator fun invoke(event: E)
-}
+}
+

core/ui/src/commonMain/kotlin/com/stslex/core/ui/theme/AppTheme.kt

@@ -1,9 +1,9 @@
 package com.stslex.core.ui.theme
 
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.material.MaterialTheme
-import androidx.compose.material.darkColors
-import androidx.compose.material.lightColors
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
 
 @Composable
@@ -12,12 +12,12 @@ fun AppTheme(
     content: @Composable () -> Unit,
 ) {
     val colors = if (isDarkTheme) {
-        darkColors()
+        darkColorScheme()
     } else {
-        lightColors()
+        lightColorScheme()
     }
     MaterialTheme(
-        colors = colors,
+        colorScheme = colors,
         content = content
     )
 }