feat:"初始化仓库，并更新基础代码。"

2026-01-14 09:25:52 +08:00
commit 9a91c40a97
140 changed files with 6513 additions and 0 deletions
--- a/lib/providers/expense_provider.dart
+++ b/lib/providers/expense_provider.dart
@@ -0,0 +1,123 @@
+import 'package:flutter/material.dart';
+import '../models/category_model.dart';
+import '../models/transaction_model.dart';
+import '../db/database_helper.dart';
+import '../utils/logger.dart';
+
+class ExpenseProvider with ChangeNotifier {
+  List<TransactionModel> _transactions = [];
+  List<Category> _categories = [];
+  bool _isLoading = false;
+
+  List<TransactionModel> get transactions => _transactions;
+  List<Category> get categories => _categories;
+  bool get isLoading => _isLoading;
+
+  Future<void> loadData() async {
+    _isLoading = true;
+    notifyListeners();
+
+    try {
+      _categories = await DatabaseHelper.instance.readAllCategories();
+      _transactions = await DatabaseHelper.instance.readAllTransactions();
+      Logger.log('Data loaded successfully: ${_transactions.length} transactions, ${_categories.length} categories');
+    } catch (e, stack) {
+      Logger.error('Failed to load data', error: e, stackTrace: stack);
+    } finally {
+      _isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  Future<void> addTransaction(TransactionModel transaction) async {
+    try {
+      await DatabaseHelper.instance.createTransaction(transaction);
+      _transactions.insert(0, transaction); // Insert at the beginning
+      Logger.log('Transaction added: ${transaction.id}');
+      notifyListeners();
+    } catch (e, stack) {
+      Logger.error('Failed to add transaction', error: e, stackTrace: stack);
+      rethrow;
+    }
+  }
+
+  Future<void> deleteTransaction(String id) async {
+    try {
+      await DatabaseHelper.instance.deleteTransaction(id);
+      _transactions.removeWhere((t) => t.id == id);
+      Logger.log('Transaction deleted: $id');
+      notifyListeners();
+    } catch (e, stack) {
+      Logger.error('Failed to delete transaction', error: e, stackTrace: stack);
+      rethrow;
+    }
+  }
+
+  // Category Management
+  Future<void> addCategory(Category category) async {
+    try {
+      await DatabaseHelper.instance.createCategory(category);
+      Logger.log('Category added: ${category.name}');
+      await loadCategories();
+    } catch (e, stack) {
+      Logger.error('Failed to add category', error: e, stackTrace: stack);
+      rethrow;
+    }
+  }
+
+  Future<void> updateCategory(Category category) async {
+    try {
+      await DatabaseHelper.instance.updateCategory(category);
+      Logger.log('Category updated: ${category.id}');
+      await loadCategories();
+    } catch (e, stack) {
+      Logger.error('Failed to update category', error: e, stackTrace: stack);
+      rethrow;
+    }
+  }
+
+  Future<void> deleteCategory(int id) async {
+    try {
+      await DatabaseHelper.instance.deleteCategory(id);
+      Logger.log('Category deleted: $id');
+      await loadCategories();
+    } catch (e, stack) {
+      Logger.error('Failed to delete category', error: e, stackTrace: stack);
+      rethrow;
+    }
+  }
+
+  Future<void> loadCategories() async {
+    try {
+      _categories = await DatabaseHelper.instance.readAllCategories();
+      notifyListeners();
+    } catch (e, stack) {
+      Logger.error('Failed to load categories', error: e, stackTrace: stack);
+    }
+  }
+
+  Category getCategoryById(int id) {
+    return _categories.firstWhere((c) => c.id == id, orElse: () => Category(name: '未知', type: 'expense', icon: 'help', color: 0xFF9E9E9E));
+  }
+  
+  double get totalIncome {
+    return _transactions
+        .where((t) => t.type == 'income')
+        .fold(0.0, (sum, item) => sum + item.amount);
+  }
+
+  double get totalExpense {
+    return _transactions
+        .where((t) => t.type == 'expense')
+        .fold(0.0, (sum, item) => sum + item.amount);
+  }
+
+  // Helper to get hierarchical categories
+  List<Category> get rootCategories {
+    return _categories.where((c) => c.parentId == null).toList();
+  }
+
+  List<Category> getSubCategories(int parentId) {
+    return _categories.where((c) => c.parentId == parentId).toList();
+  }
+}