chore: migrate to KT financial system

apps/backend/utils/finance-metadata.ts

@@ -5,13 +5,39 @@ import {
   MOCK_CURRENCIES,
   MOCK_EXCHANGE_RATES,
 } from './mock-data';
+import db from './sqlite';
 
 export function listAccounts() {
   return MOCK_ACCOUNTS;
 }
 
 export function listCategories() {
-  return MOCK_CATEGORIES;
+  // 从数据库读取分类
+  try {
+    const stmt = db.prepare(`
+      SELECT id, name, type, icon, color, user_id as userId, is_active as isActive
+      FROM finance_categories
+      WHERE is_active = 1
+      ORDER BY type, id
+    `);
+    const categories = stmt.all() as any[];
+    
+    // 转换为前端需要的格式
+    return categories.map(cat => ({
+      id: cat.id,
+      userId: cat.userId,
+      name: cat.name,
+      type: cat.type,
+      icon: cat.icon,
+      color: cat.color,
+      sortOrder: cat.id,
+      isSystem: true,
+      isActive: Boolean(cat.isActive),
+    }));
+  } catch (error) {
+    console.error('从数据库读取分类失败，使用MOCK数据:', error);
+    return MOCK_CATEGORIES;
+  }
 }
 
 export function listBudgets() {
@@ -27,29 +53,78 @@ export function listExchangeRates() {
 }
 
 export function createCategoryRecord(category: any) {
-  const newCategory = {
-    ...category,
-    id: MOCK_CATEGORIES.length + 1,
-    createdAt: new Date().toISOString(),
-  };
-  MOCK_CATEGORIES.push(newCategory);
-  return newCategory;
+  try {
+    const stmt = db.prepare(`
+      INSERT INTO finance_categories (name, type, icon, color, user_id, is_active)
+      VALUES (?, ?, ?, ?, ?, 1)
+    `);
+    const result = stmt.run(
+      category.name,
+      category.type,
+      category.icon || '📝',
+      category.color || '#dfe4ea',
+      category.userId || 1
+    );
+    return {
+      id: result.lastInsertRowid,
+      ...category,
+      createdAt: new Date().toISOString(),
+    };
+  } catch (error) {
+    console.error('创建分类失败:', error);
+    return null;
+  }
 }
 
 export function updateCategoryRecord(id: number, category: any) {
-  const index = MOCK_CATEGORIES.findIndex((c) => c.id === id);
-  if (index !== -1) {
-    MOCK_CATEGORIES[index] = { ...MOCK_CATEGORIES[index], ...category };
-    return MOCK_CATEGORIES[index];
+  try {
+    const updates: string[] = [];
+    const params: any[] = [];
+    
+    if (category.name) {
+      updates.push('name = ?');
+      params.push(category.name);
+    }
+    if (category.icon) {
+      updates.push('icon = ?');
+      params.push(category.icon);
+    }
+    if (category.color) {
+      updates.push('color = ?');
+      params.push(category.color);
+    }
+    
+    if (updates.length === 0) return null;
+    
+    params.push(id);
+    const stmt = db.prepare(`
+      UPDATE finance_categories
+      SET ${updates.join(', ')}
+      WHERE id = ?
+    `);
+    stmt.run(...params);
+    
+    // 返回更新后的分类
+    const selectStmt = db.prepare('SELECT * FROM finance_categories WHERE id = ?');
+    return selectStmt.get(id);
+  } catch (error) {
+    console.error('更新分类失败:', error);
+    return null;
   }
-  return null;
 }
 
 export function deleteCategoryRecord(id: number) {
-  const index = MOCK_CATEGORIES.findIndex((c) => c.id === id);
-  if (index !== -1) {
-    MOCK_CATEGORIES.splice(index, 1);
+  try {
+    // 软删除
+    const stmt = db.prepare(`
+      UPDATE finance_categories
+      SET is_active = 0
+      WHERE id = ?
+    `);
+    stmt.run(id);
     return true;
+  } catch (error) {
+    console.error('删除分类失败:', error);
+    return false;
   }
-  return false;
 }