feat:增加加载中组件

lib/provider/food_provider.dart

@@ -1,20 +1,134 @@
 import 'package:flutter/material.dart';
+import 'package:food_hub_app/apis/recipe.dart';
+import 'package:food_hub_app/apis/stats.dart';
 import 'package:food_hub_app/models/recipe.dart';
+import 'package:food_hub_app/models/stats.dart';
+import 'package:food_hub_app/utils/date_util.dart';
+import 'package:food_hub_app/utils/index.dart';
 
 class FoodProvider with ChangeNotifier {
-  late FoodRecord _recordFormItem;
+  late FoodRecord recordFormItem;
 
   late bool isEditing;
+  bool isLoading = false;
+  String? error;
 
-  FoodRecord get recordFormItem => _recordFormItem;
+  late List<RecipeSummary> recipeSummaryList = [];
+
+  DateTime selectedDay = DateTime.now();
+  DateTime focusedDay = DateTime.now();
+
+  late List<FoodRecord> recordList = [];
+  late List<FoodRecord> selectRecordList = [];
+
+  late SummaryStats summaryStats = SummaryStats(
+    recipeCount: 0,
+    categoryCount: 0,
+    workCount: 0,
+  );
+  late double averageRecordCount = 0;
+  late List<ChartData> recordStats = [];
+  late List<ChartData> categoryStats = [];
+  late List<ChartData> rankStats = [];
 
   void resetRecordForm() {
-    _recordFormItem = FoodRecord.getEmpty();
+    recordFormItem = FoodRecord.getEmpty();
     notifyListeners();
   }
 
   void initRecordForm(FoodRecord record) {
-    _recordFormItem = record;
+    recordFormItem = record;
     notifyListeners();
   }
+
+  Future<void> refreshRecipeList() async {
+    if (isLoading) return;
+
+    try {
+      isLoading = true;
+      error = null;
+      notifyListeners();
+
+      final result = await queryRecipeApi(RecipeQuery(category: ""));
+      recipeSummaryList = result;
+    } catch (e) {
+      error = '加载数据失败: $e';
+      debugPrint('加载数据失败: $e');
+    } finally {
+      isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  Future<void> refreshRecordList(String? startDate, String? endDate) async {
+    if (isLoading) return;
+
+    try {
+      isLoading = true;
+      error = null;
+      notifyListeners();
+
+      startDate ??= getFirstDayOfMonth(focusedDay);
+      endDate ??= getLastDayOfMonth(focusedDay);
+
+      final result = await queryRecordApi(startDate, endDate);
+
+      recordList = result;
+
+      if (recordList.isNotEmpty) {
+        selectedDay = DateTime.parse(recordList.last.date);
+      } else {
+        selectedDay = focusedDay;
+      }
+
+      refreshSelectRecord();
+    } catch (e) {
+      error = '加载数据失败: $e';
+      debugPrint('加载数据失败: $e');
+    } finally {
+      isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  void refreshSelectRecord() {
+    selectRecordList =
+        recordList
+            .where((record) => record.date == formatDateTime(selectedDay))
+            .toList();
+  }
+
+  Future<void> refreshBlogStats() async {
+    if (isLoading) return;
+
+    try {
+      isLoading = true;
+      error = null;
+      notifyListeners();
+
+      final statsResult = await queryStatsApi();
+      final recordStatsResult = await queryRecordStatsApi();
+      final categoryStatsResult = await queryCategoryStatsApi();
+      final rankStatsResult = await queryRankStatsApi();
+
+      summaryStats = statsResult;
+      recordStats = recordStatsResult;
+      categoryStats = categoryStatsResult;
+      rankStats = rankStatsResult;
+
+      if (recordStats.isNotEmpty) {
+        double sumValue = recordStats.fold(
+          0.0,
+          (sum, item) => sum + item.value,
+        );
+        averageRecordCount = sumValue / recordStats.length;
+      }
+    } catch (e) {
+      error = '加载数据失败: $e';
+      debugPrint('加载数据失败: $e');
+    } finally {
+      isLoading = false;
+      notifyListeners();
+    }
+  }
 }