封装BaseViewModel

composeApp/src/commonMain/kotlin/com/taskttl/data/viewmodel/OnboardingViewModel.kt

@@ -1,13 +1,12 @@
 package com.taskttl.data.viewmodel
 
-import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import com.taskttl.core.viewmodel.BaseViewModel
 import com.taskttl.data.repository.CategoryRepository
 import com.taskttl.data.repository.OnboardingRepository
-import com.taskttl.data.state.OnboardingEvent
-import kotlinx.coroutines.channels.Channel
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.receiveAsFlow
+import com.taskttl.data.state.OnboardingEffect
+import com.taskttl.data.state.OnboardingIntent
+import com.taskttl.data.state.OnboardingState
 import kotlinx.coroutines.launch
 
 /**
@@ -20,30 +19,37 @@ import kotlinx.coroutines.launch
  */
 class OnboardingViewModel(
     private val onboardingRepository: OnboardingRepository,
-    private val categoryRepository: CategoryRepository
-) : ViewModel() {
+    private val categoryRepository: CategoryRepository,
+) : BaseViewModel<OnboardingState, OnboardingIntent, OnboardingEffect>(initialState = OnboardingState()) {
 
-    private val _events = Channel<OnboardingEvent>()
-    val events: Flow<OnboardingEvent> = _events.receiveAsFlow()
+    override fun handleIntent(intent: OnboardingIntent) {
+        when (intent) {
+            is OnboardingIntent.NextPage -> nextPage()
+            is OnboardingIntent.MarkOnboardingCompleted -> markOnboardingCompleted()
+        }
+    }
 
     /**
-     * 发送事件 - 提供统一的事件发送机制
-     * @param event 事件
+     * 下一页
      */
-    fun sendEvent(event: OnboardingEvent) {
-        viewModelScope.launch {
-            _events.trySend(event)
-        }
+    private fun nextPage() {
+        sendEvent(OnboardingEffect.NextPage)
     }
 
     /**
      * 标记引导完成
      */
-    fun markOnboardingCompleted() {
+    private fun markOnboardingCompleted() {
         viewModelScope.launch {
-            categoryRepository.initializeDefaultCategories()
-            onboardingRepository.markLaunched()
-            _events.trySend(OnboardingEvent.NavMain)
+            try {
+                if (state.value.isProcessing) return@launch
+                updateState { copy(isLoading = false, isProcessing = true) }
+                categoryRepository.initializeDefaultCategories()
+                onboardingRepository.markLaunched()
+                sendEvent(OnboardingEffect.NavMain)
+            } finally {
+                updateState { copy(isLoading = false, isProcessing = false) }
+            }
         }
     }
-}
+}