feat: migrate backend storage to postgres

apps/backend/utils/finance-metadata.ts

@@ -1,3 +1,4 @@
+import { query } from './db';
 import {
   MOCK_ACCOUNTS,
   MOCK_BUDGETS,
@@ -5,37 +6,87 @@ import {
   MOCK_CURRENCIES,
   MOCK_EXCHANGE_RATES,
 } from './mock-data';
-import db from './sqlite';
 
-export function listAccounts() {
-  return MOCK_ACCOUNTS;
+interface AccountRow {
+  id: number;
+  name: string;
+  type: string;
+  currency: string;
+  icon: null | string;
+  color: null | string;
+  user_id: null | number;
+  is_active: boolean;
 }
 
-export function listCategories() {
-  // 从数据库读取分类
+interface CategoryRow {
+  id: number;
+  name: string;
+  type: string;
+  icon: null | string;
+  color: null | string;
+  user_id: null | number;
+  is_active: boolean;
+}
+
+function mapAccount(row: AccountRow) {
+  return {
+    id: row.id,
+    userId: row.user_id ?? 1,
+    name: row.name,
+    type: row.type,
+    currency: row.currency,
+    balance: 0,
+    icon: row.icon ?? '💳',
+    color: row.color ?? '#1677ff',
+    isActive: Boolean(row.is_active),
+  };
+}
+
+function mapCategory(row: CategoryRow) {
+  return {
+    id: row.id,
+    userId: row.user_id ?? 1,
+    name: row.name,
+    type: row.type as 'expense' | 'income',
+    icon: row.icon ?? '📝',
+    color: row.color ?? '#dfe4ea',
+    sortOrder: row.id,
+    isSystem: row.user_id === null,
+    isActive: Boolean(row.is_active),
+  };
+}
+
+export async function listAccounts() {
   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),
-    }));
+    const { rows } = await query<AccountRow>(
+      `SELECT id, name, type, currency, icon, color, user_id, is_active
+       FROM finance_accounts
+       ORDER BY id`,
+    );
+    if (rows.length === 0) {
+      return MOCK_ACCOUNTS;
+    }
+    return rows.map((row) => mapAccount(row));
   } catch (error) {
-    console.error('从数据库读取分类失败，使用MOCK数据:', error);
+    console.error('从数据库读取账户失败，使用 MOCK 数据:', error);
+    return MOCK_ACCOUNTS;
+  }
+}
+
+export async function listCategories() {
+  try {
+    const { rows } = await query<CategoryRow>(
+      `SELECT id, name, type, icon, color, user_id, is_active
+       FROM finance_categories
+       WHERE is_active = TRUE
+       ORDER BY type, id`,
+    );
+    if (rows.length === 0) {
+      return MOCK_CATEGORIES;
+    }
+    return rows.map((row) => mapCategory(row));
+  } catch (error) {
+    console.error('从数据库读取分类失败，使用 MOCK 数据:', error);
     return MOCK_CATEGORIES;
   }
 }
@@ -52,76 +103,80 @@ export function listExchangeRates() {
   return MOCK_EXCHANGE_RATES;
 }
 
-export function createCategoryRecord(category: any) {
+export async function createCategoryRecord(category: any) {
   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
+    const { rows } = await query<CategoryRow>(
+      `INSERT INTO finance_categories (name, type, icon, color, user_id, is_active)
+       VALUES ($1, $2, $3, $4, $5, TRUE)
+       RETURNING id, name, type, icon, color, user_id, is_active`,
+      [
+        category.name,
+        category.type,
+        category.icon || '📝',
+        category.color || '#dfe4ea',
+        category.userId || 1,
+      ],
     );
-    return {
-      id: result.lastInsertRowid,
-      ...category,
-      createdAt: new Date().toISOString(),
-    };
+    const row = rows[0];
+    return row
+      ? {
+          ...mapCategory(row),
+          createdAt: new Date().toISOString(),
+        }
+      : null;
   } catch (error) {
     console.error('创建分类失败:', error);
     return null;
   }
 }
 
-export function updateCategoryRecord(id: number, category: any) {
+export async function updateCategoryRecord(id: number, category: any) {
   try {
     const updates: string[] = [];
     const params: any[] = [];
-    
+
     if (category.name) {
-      updates.push('name = ?');
       params.push(category.name);
+      updates.push(`name = $${params.length}`);
     }
     if (category.icon) {
-      updates.push('icon = ?');
       params.push(category.icon);
+      updates.push(`icon = $${params.length}`);
     }
     if (category.color) {
-      updates.push('color = ?');
       params.push(category.color);
+      updates.push(`color = $${params.length}`);
     }
-    
-    if (updates.length === 0) return null;
-    
+
+    if (updates.length === 0) {
+      return null;
+    }
+
     params.push(id);
-    const stmt = db.prepare(`
-      UPDATE finance_categories
-      SET ${updates.join(', ')}
-      WHERE id = ?
-    `);
-    stmt.run(...params);
-    
-    // 返回更新后的分类
-    const selectStmt = db.prepare('SELECT * FROM finance_categories WHERE id = ?');
-    return selectStmt.get(id);
+    const setClause = updates.join(', ');
+    const { rows } = await query<CategoryRow>(
+      `UPDATE finance_categories
+       SET ${setClause}
+       WHERE id = $${params.length}
+       RETURNING id, name, type, icon, color, user_id, is_active`,
+      params,
+    );
+    const row = rows[0];
+    return row ? mapCategory(row) : null;
   } catch (error) {
     console.error('更新分类失败:', error);
     return null;
   }
 }
 
-export function deleteCategoryRecord(id: number) {
+export async function deleteCategoryRecord(id: number) {
   try {
-    // 软删除
-    const stmt = db.prepare(`
-      UPDATE finance_categories
-      SET is_active = 0
-      WHERE id = ?
-    `);
-    stmt.run(id);
+    await query(
+      `UPDATE finance_categories
+       SET is_active = FALSE
+       WHERE id = $1`,
+      [id],
+    );
     return true;
   } catch (error) {
     console.error('删除分类失败:', error);