restructure

android/src/main/java/com/rssuper/viewmodel/FeedViewModel.kt

@@ -0,0 +1,67 @@
+package com.rssuper.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.rssuper.repository.FeedRepository
+import com.rssuper.state.State
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.launch
+
+class FeedViewModel(
+    private val feedRepository: FeedRepository
+) : ViewModel() {
+    
+    private val _feedState = MutableStateFlow<State<List<com.rssuper.database.entities.FeedItemEntity>>>(State.Idle)
+    val feedState: StateFlow<State<List<com.rssuper.database.entities.FeedItemEntity>>> = _feedState.asStateFlow()
+    
+    private val _unreadCount = MutableStateFlow<State<Int>>(State.Idle)
+    val unreadCount: StateFlow<State<Int>> = _unreadCount.asStateFlow()
+    
+    fun loadFeedItems(subscriptionId: String? = null) {
+        viewModelScope.launch {
+            feedRepository.getFeedItems(subscriptionId).collect { state ->
+                _feedState.value = state
+            }
+        }
+    }
+    
+    fun loadUnreadCount(subscriptionId: String? = null) {
+        viewModelScope.launch {
+            _unreadCount.value = State.Loading
+            try {
+                val count = feedRepository.getUnreadCount(subscriptionId)
+                _unreadCount.value = State.Success(count)
+            } catch (e: Exception) {
+                _unreadCount.value = State.Error("Failed to load unread count", e)
+            }
+        }
+    }
+    
+    fun markAsRead(id: String, isRead: Boolean) {
+        viewModelScope.launch {
+            try {
+                feedRepository.markAsRead(id, isRead)
+                loadUnreadCount()
+            } catch (e: Exception) {
+                _unreadCount.value = State.Error("Failed to update read state", e)
+            }
+        }
+    }
+    
+    fun markAsStarred(id: String, isStarred: Boolean) {
+        viewModelScope.launch {
+            try {
+                feedRepository.markAsStarred(id, isStarred)
+            } catch (e: Exception) {
+                _feedState.value = State.Error("Failed to update starred state", e)
+            }
+        }
+    }
+    
+    fun refreshFeed(subscriptionId: String? = null) {
+        loadFeedItems(subscriptionId)
+        loadUnreadCount(subscriptionId)
+    }
+}