修复聊天功能：1. 统一聊天入口跳转逻辑；2. 防止重复添加聊天记录

pages/customer-service/detail/index.js

@@ -177,9 +177,9 @@ Page({
       console.log('添加聊天记录成功:', res);
       // 隐藏加载提示
       wx.hideLoading();
-      // 导航到聊天页面
+      // 导航到聊天详情页面
       wx.navigateTo({
-        url: `/pages/chat/index?id=${customerData.id}&name=${customerData.alias}&phone=${customerData.phoneNumber}`
+        url: `/pages/chat-detail/index?id=${customerData.phoneNumber}&name=${customerData.alias}`
       });
     }).catch(err => {
       console.error('添加聊天记录失败:', err);

server-example/server-mysql.js

@@ -8082,7 +8082,8 @@ app.post('/api/chat/add', async (req, res) => {
           created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
           updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
           INDEX idx_user_phone (user_phone),
-          INDEX idx_manager_phone (manager_phone)
+          INDEX idx_manager_phone (manager_phone),
+          UNIQUE KEY idx_user_manager (user_phone, manager_phone)
         ) ENGINE=InnoDB;`
       );
       console.log('✅ chat_list表检查/创建成功');
@@ -8090,20 +8091,59 @@ app.post('/api/chat/add', async (req, res) => {
       console.warn('创建chat_list表时出错（可能已存在）:', createError.message);
     }
     
+    // 如果表已存在但没有唯一索引，尝试添加
+    try {
+      await sequelize.query(
+        'ALTER TABLE chat_list ADD CONSTRAINT IF NOT EXISTS idx_user_manager UNIQUE (user_phone, manager_phone)'
+      );
+      console.log('✅ 尝试添加唯一索引成功');
+    } catch (indexError) {
+      console.warn('添加唯一索引失败（可能已存在）:', indexError.message);
+    }
+    
+    // 检查是否已经存在相同的聊天记录
+    const existingRecords = await sequelize.query(
+      'SELECT COUNT(*) as count FROM chat_list WHERE (user_phone = ? AND manager_phone = ?) OR (user_phone = ? AND manager_phone = ?)',
+      { replacements: [user_phone, manager_phone, manager_phone, user_phone], type: sequelize.QueryTypes.SELECT }
+    );
+    
+    const recordCount = existingRecords[0].count;
+    
+    if (recordCount > 0) {
+      console.log('✅ 聊天记录已存在，无需重复添加');
+      return res.status(200).json({
+        success: true,
+        message: '聊天记录已存在'
+      });
+    }
+    
     // 插入两条记录：
     // 1. 用户手机号 -> 业务员手机号
     await sequelize.query(
-      'INSERT INTO chat_list (user_phone, manager_phone) VALUES (?, ?)',
+      'INSERT IGNORE INTO chat_list (user_phone, manager_phone) VALUES (?, ?)',
       { replacements: [user_phone, manager_phone] }
     );
-    res.status(200).json({
-      success: true,
+    
+    // 2. 业务员手机号 -> 用户手机号
     await sequelize.query(
-      'INSERT INTO chat_list (user_phone, manager_phone) VALUES (?, ?)',
+      'INSERT IGNORE INTO chat_list (user_phone, manager_phone) VALUES (?, ?)',
       { replacements: [manager_phone, user_phone] }
     );
-    });
+    
     console.log('✅ 成功插入两条聊天记录');
+    
+    res.status(200).json({
+      success: true,
+      message: '聊天记录添加成功'
+    });
+  } catch (error) {
+    console.error('添加聊天记录失败:', error);
+    res.status(500).json({
+      success: false,
+      code: 500,
+      message: '添加聊天记录失败: ' + error.message
+    });
+  }
 });
 
 // 新增：获取业务员信息接口 - 根据手机号查询