修改商城逻辑

routes/address-labels.js

@@ -0,0 +1,180 @@
+const express = require('express');
+const router = express.Router();
+const { getDB } = require('../database');
+const { auth } = require('../middleware/auth');
+
+// 获取地址标签列表（包含系统默认和用户自定义）
+router.get('/', auth, async (req, res) => {
+  try {
+    const userId = req.user.id;
+    
+    const [labels] = await getDB().execute(
+      `SELECT * FROM address_labels 
+       WHERE user_id IS NULL OR user_id = ? 
+       ORDER BY is_system DESC, created_at ASC`,
+      [userId]
+    );
+    
+    res.json({
+      success: true,
+      data: labels
+    });
+  } catch (error) {
+    console.error('获取地址标签列表错误:', error);
+    res.status(500).json({ message: '获取地址标签列表失败' });
+  }
+});
+
+// 创建自定义地址标签
+router.post('/', auth, async (req, res) => {
+  try {
+    const userId = req.user.id;
+    const { name, color = '#1890ff' } = req.body;
+    
+    if (!name || name.trim() === '') {
+      return res.status(400).json({ message: '标签名称不能为空' });
+    }
+    
+    // 检查标签名称是否已存在（系统标签或用户自定义标签）
+    const [existing] = await getDB().execute(
+      `SELECT id FROM address_labels 
+       WHERE name = ? AND (user_id IS NULL OR user_id = ?)`,
+      [name.trim(), userId]
+    );
+    
+    if (existing.length > 0) {
+      return res.status(400).json({ message: '标签名称已存在' });
+    }
+    
+    const [result] = await getDB().execute(
+      `INSERT INTO address_labels (name, color, user_id, is_system, created_at, updated_at) 
+       VALUES (?, ?, ?, false, NOW(), NOW())`,
+      [name.trim(), color, userId]
+    );
+    
+    res.status(201).json({
+      success: true,
+      message: '地址标签创建成功',
+      data: { labelId: result.insertId }
+    });
+  } catch (error) {
+    console.error('创建地址标签错误:', error);
+    res.status(500).json({ message: '创建地址标签失败' });
+  }
+});
+
+// 更新自定义地址标签
+router.put('/:id', auth, async (req, res) => {
+  try {
+    const labelId = req.params.id;
+    const userId = req.user.id;
+    const { name, color } = req.body;
+    
+    // 检查标签是否存在且属于当前用户（不能修改系统标签）
+    const [existing] = await getDB().execute(
+      'SELECT id, is_system FROM address_labels WHERE id = ? AND user_id = ?',
+      [labelId, userId]
+    );
+    
+    if (existing.length === 0) {
+      return res.status(404).json({ message: '地址标签不存在或无权限修改' });
+    }
+    
+    if (existing[0].is_system) {
+      return res.status(403).json({ message: '系统标签不能修改' });
+    }
+    
+    if (name && name.trim() !== '') {
+      // 检查新名称是否已存在
+      const [nameExists] = await getDB().execute(
+        `SELECT id FROM address_labels 
+         WHERE name = ? AND id != ? AND (user_id IS NULL OR user_id = ?)`,
+        [name.trim(), labelId, userId]
+      );
+      
+      if (nameExists.length > 0) {
+        return res.status(400).json({ message: '标签名称已存在' });
+      }
+    }
+    
+    const updateFields = [];
+    const updateValues = [];
+    
+    if (name && name.trim() !== '') {
+      updateFields.push('name = ?');
+      updateValues.push(name.trim());
+    }
+    
+    if (color) {
+      updateFields.push('color = ?');
+      updateValues.push(color);
+    }
+    
+    if (updateFields.length === 0) {
+      return res.status(400).json({ message: '没有需要更新的字段' });
+    }
+    
+    updateFields.push('updated_at = NOW()');
+    updateValues.push(labelId, userId);
+    
+    await getDB().execute(
+      `UPDATE address_labels SET ${updateFields.join(', ')} WHERE id = ? AND user_id = ?`,
+      updateValues
+    );
+    
+    res.json({
+      success: true,
+      message: '地址标签更新成功'
+    });
+  } catch (error) {
+    console.error('更新地址标签错误:', error);
+    res.status(500).json({ message: '更新地址标签失败' });
+  }
+});
+
+// 删除自定义地址标签
+router.delete('/:id', auth, async (req, res) => {
+  try {
+    const labelId = req.params.id;
+    const userId = req.user.id;
+    
+    // 检查标签是否存在且属于当前用户（不能删除系统标签）
+    const [existing] = await getDB().execute(
+      'SELECT id, is_system FROM address_labels WHERE id = ? AND user_id = ?',
+      [labelId, userId]
+    );
+    
+    if (existing.length === 0) {
+      return res.status(404).json({ message: '地址标签不存在或无权限删除' });
+    }
+    
+    if (existing[0].is_system) {
+      return res.status(403).json({ message: '系统标签不能删除' });
+    }
+    
+    // 检查是否有地址正在使用该标签
+    const [addressesUsingLabel] = await getDB().execute(
+      'SELECT COUNT(*) as count FROM user_addresses WHERE label_id = ? AND deleted_at IS NULL',
+      [labelId]
+    );
+    
+    if (addressesUsingLabel[0].count > 0) {
+      return res.status(400).json({ message: '该标签正在被使用，无法删除' });
+    }
+    
+    await getDB().execute(
+      'DELETE FROM address_labels WHERE id = ? AND user_id = ?',
+      [labelId, userId]
+    );
+    
+    res.json({
+      success: true,
+      message: '地址标签删除成功'
+    });
+  } catch (error) {
+    console.error('删除地址标签错误:', error);
+    res.status(500).json({ message: '删除地址标签失败' });
+  }
+});
+
+module.exports = router;