(vision) SCS/DDD

composeApp/src/commonMain/kotlin/at/mocode/App.kt

@@ -12,20 +12,48 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import at.mocode.config.AppServiceConfiguration
+import at.mocode.config.ThemeService
+import at.mocode.di.ServiceRegistry
+import at.mocode.di.resolve
 import org.jetbrains.compose.ui.tooling.preview.Preview
 
 @Composable
 @Preview
 fun App() {
-    MaterialTheme(
-        colors = lightColors(
-            primary = Color(0xFF2E7D32),
-            primaryVariant = Color(0xFF1B5E20),
-            secondary = Color(0xFF8BC34A),
-            background = Color(0xFFF1F8E9)
-        )
-    ) {
-        HomePage()
+    // State to track if services are initialized
+    var servicesInitialized by remember { mutableStateOf(false) }
+
+    // Initialize services when the app starts
+    LaunchedEffect(Unit) {
+        AppServiceConfiguration.configureAppServices()
+        servicesInitialized = true
+    }
+
+    // Only show the app content after services are initialized
+    if (servicesInitialized) {
+        // Get theme service to demonstrate ServiceLocator usage
+        val themeService: ThemeService = ServiceRegistry.serviceLocator.resolve()
+        val currentTheme by remember { mutableStateOf(themeService.getCurrentTheme()) }
+
+        MaterialTheme(
+            colors = lightColors(
+                primary = Color(0xFF2E7D32),
+                primaryVariant = Color(0xFF1B5E20),
+                secondary = Color(0xFF8BC34A),
+                background = Color(0xFFF1F8E9)
+            )
+        ) {
+            HomePage()
+        }
+    } else {
+        // Show loading state while services are being initialized
+        Box(
+            modifier = Modifier.fillMaxSize(),
+            contentAlignment = Alignment.Center
+        ) {
+            CircularProgressIndicator()
+        }
     }
 }
 
@@ -44,7 +72,7 @@ fun HomePage() {
         }
 
         item {
-            // Welcome Card
+            // Welcome, Card
             WelcomeCard()
         }
 

composeApp/src/commonMain/kotlin/at/mocode/config/AppServiceConfiguration.kt

@@ -0,0 +1,88 @@
+package at.mocode.config
+
+import at.mocode.di.ServiceRegistry
+import at.mocode.di.register
+
+/**
+ * Service configuration for the Compose application.
+ * Demonstrates how to use the ServiceLocator pattern in the frontend.
+ */
+object AppServiceConfiguration {
+
+    /**
+     * Initialize services for the compose application
+     */
+    fun configureAppServices() {
+        val serviceLocator = ServiceRegistry.serviceLocator
+
+        // Register frontend-specific services
+        registerUIServices(serviceLocator)
+
+        // Register API clients or other services as needed
+        // registerApiServices(serviceLocator)
+    }
+
+    /**
+     * Register UI-related services
+     */
+    private fun registerUIServices(serviceLocator: at.mocode.di.ServiceLocator) {
+        // Example: Register a theme service
+        serviceLocator.register<ThemeService> { DefaultThemeService() }
+
+        // Example: Register a navigation service
+        serviceLocator.register<NavigationService> { DefaultNavigationService() }
+
+        // Add more UI services as needed
+    }
+
+    /**
+     * Clear all registered services (useful for testing)
+     */
+    fun clearAppServices() {
+        ServiceRegistry.serviceLocator.clear()
+    }
+}
+
+/**
+ * Example theme service interface
+ */
+interface ThemeService {
+    fun getCurrentTheme(): String
+    fun setTheme(theme: String)
+}
+
+/**
+ * Default implementation of ThemeService
+ */
+class DefaultThemeService : ThemeService {
+    private var currentTheme = "light"
+
+    override fun getCurrentTheme(): String = currentTheme
+
+    override fun setTheme(theme: String) {
+        currentTheme = theme
+    }
+}
+
+/**
+ * Example navigation service interface
+ */
+interface NavigationService {
+    fun navigateTo(route: String)
+    fun goBack()
+}
+
+/**
+ * Default implementation of NavigationService
+ */
+class DefaultNavigationService : NavigationService {
+    override fun navigateTo(route: String) {
+        // Implementation for navigation
+        println("Navigating to: $route")
+    }
+
+    override fun goBack() {
+        // Implementation for going back
+        println("Going back")
+    }
+}