feat:更新编辑菜谱功能

lib/provider/food_provider.dart

@@ -66,6 +66,86 @@ class FoodProvider with ChangeNotifier {
     notifyListeners();
   }
 
+  void updateRecipeFormItem({
+    String? name,
+    String? category,
+    double? recommendRate,
+    String? remark,
+    bool? isShare,
+  }) {
+    if (name != null) recipeFormItem.name = name;
+    if (category != null) recipeFormItem.category = category;
+    if (recommendRate != null) recipeFormItem.recommendRate = recommendRate;
+    if (remark != null) recipeFormItem.remark = remark;
+    if (isShare != null) recipeFormItem.isShare = isShare;
+    notifyListeners();
+  }
+
+  void addRecipeMaterial() {
+    recipeFormItem.materialList.add(
+      RecipeMaterial(
+        id: DateTime.now().microsecondsSinceEpoch,
+        type: '主料',
+        name: '',
+        amount: '',
+      ),
+    );
+    notifyListeners();
+  }
+
+  void updateRecipeMaterial(
+    int index, {
+    String? type,
+    String? name,
+    String? amount,
+  }) {
+    final material = recipeFormItem.materialList[index];
+    recipeFormItem.materialList[index] = RecipeMaterial(
+      id: material.id,
+      type: type ?? material.type,
+      name: name ?? material.name,
+      amount: amount ?? material.amount,
+    );
+    notifyListeners();
+  }
+
+  void removeRecipeMaterial(int index) {
+    recipeFormItem.materialList.removeAt(index);
+    notifyListeners();
+  }
+
+  void addRecipeStep() {
+    recipeFormItem.stepList.add(
+      RecipeStep(
+        id: DateTime.now().microsecondsSinceEpoch,
+        sort: recipeFormItem.stepList.length,
+        content: '',
+        imageUrl: '',
+      ),
+    );
+    notifyListeners();
+  }
+
+  void updateRecipeStep(int index, {String? content, String? imageUrl}) {
+    final step = recipeFormItem.stepList[index];
+    recipeFormItem.stepList[index] = RecipeStep(
+      id: step.id,
+      sort: step.sort,
+      content: content ?? step.content,
+      imageUrl: imageUrl ?? step.imageUrl,
+    );
+  }
+
+  void removeRecipeStep(int index) {
+    recipeFormItem.stepList.removeAt(index);
+
+    for (int i = 0; i < recipeFormItem.stepList.length; i++) {
+      recipeFormItem.stepList[i].sort = i;
+    }
+    
+    notifyListeners();
+  }
+
   void updateRecordFormItem({String? name, String? date, String? imageUrl}) {
     if (name != null) recordFormItem.name = name;
     if (date != null) recordFormItem.date = date;
@@ -167,6 +247,30 @@ class FoodProvider with ChangeNotifier {
     }
   }
 
+  Future<bool> handleRecipe() async {
+    if (isLoading) return true;
+
+    try {
+      isLoading = true;
+      error = null;
+      notifyListeners();
+
+      if (isEditing) {
+        await updateRecipeApi(recipeFormItem.id!, recipeFormItem);
+      } else {
+        await addRecipeApi(recipeFormItem);
+      }
+      return true;
+    } catch (e) {
+      error = '处理数据失败: $e';
+      debugPrint('处理数据失败: $e');
+      return false;
+    } finally {
+      isLoading = false;
+      notifyListeners();
+    }
+  }
+
   Future<void> refreshRecordList() async {
     if (isLoading) return;