// 清理临时userId数据脚本
// 此脚本用于删除chat_conversations和chat_messages表中所有临时userId的数据
// 临时userId格式：temp_1765852836234

const mysql = require('mysql2/promise');

async function cleanupTempUserIds() {
  let connection;
  
  try {
    // 创建数据库连接
    connection = await mysql.createConnection({
      host: '1.95.162.61',
      port: 3306,
      user: 'root',
      password: 'schl@2025',
      database: 'wechat_app'
    });
    
    console.log('✓ 数据库连接成功');
    
    // ============== 清理chat_conversations表中的临时userId数据 ==============
    console.log('\n=== 清理chat_conversations表中的临时userId数据 ===');
    
    // 1. 统计需要删除的临时userId会话记录
    const [convTempCount] = await connection.execute(
      'SELECT COUNT(*) as count FROM chat_conversations WHERE userId LIKE ? OR managerId LIKE ?',
      ['temp_%', 'temp_%']
    );
    console.log(`找到 ${convTempCount[0].count} 条临时userId的会话记录`);
    
    // 2. 删除临时userId的会话记录
    if (convTempCount[0].count > 0) {
      const [convResult] = await connection.execute(
        'DELETE FROM chat_conversations WHERE userId LIKE ? OR managerId LIKE ?',
        ['temp_%', 'temp_%']
      );
      console.log(`成功删除chat_conversations表中的 ${convResult.affectedRows} 条临时userId记录`);
    }
    
    // ============== 清理chat_messages表中的临时userId数据 ==============
    console.log('\n=== 清理chat_messages表中的临时userId数据 ===');
    
    // 1. 统计需要删除的临时userId消息记录
    const [msgTempCount] = await connection.execute(
      'SELECT COUNT(*) as count FROM chat_messages WHERE sender_id LIKE ? OR receiver_id LIKE ?',
      ['temp_%', 'temp_%']
    );
    console.log(`找到 ${msgTempCount[0].count} 条临时userId的消息记录`);
    
    // 2. 删除临时userId的消息记录
    if (msgTempCount[0].count > 0) {
      const [msgResult] = await connection.execute(
        'DELETE FROM chat_messages WHERE sender_id LIKE ? OR receiver_id LIKE ?',
        ['temp_%', 'temp_%']
      );
      console.log(`成功删除chat_messages表中的 ${msgResult.affectedRows} 条临时userId记录`);
    }
    
    // ============== 验证清理结果 ==============
    console.log('\n=== 验证清理结果 ===');
    
    // 再次检查chat_conversations表中是否还有临时userId记录
    const [convVerify] = await connection.execute(
      'SELECT COUNT(*) as count FROM chat_conversations WHERE userId LIKE ? OR managerId LIKE ?',
      ['temp_%', 'temp_%']
    );
    console.log(`chat_conversations表中剩余临时userId记录数: ${convVerify[0].count}`);
    
    // 再次检查chat_messages表中是否还有临时userId记录
    const [msgVerify] = await connection.execute(
      'SELECT COUNT(*) as count FROM chat_messages WHERE sender_id LIKE ? OR receiver_id LIKE ?',
      ['temp_%', 'temp_%']
    );
    console.log(`chat_messages表中剩余临时userId记录数: ${msgVerify[0].count}`);
    
    // ============== 检查剩余的有效数据 ==============
    console.log('\n=== 检查剩余的有效数据 ===');
    
    // 检查chat_conversations表中的有效记录数
    const [convValid] = await connection.execute(
      'SELECT COUNT(*) as count FROM chat_conversations'
    );
    console.log(`chat_conversations表中有效会话记录数: ${convValid[0].count}`);
    
    // 检查chat_messages表中的有效记录数
    const [msgValid] = await connection.execute(
      'SELECT COUNT(*) as count FROM chat_messages'
    );
    console.log(`chat_messages表中有效消息记录数: ${msgValid[0].count}`);
    
    console.log('\n✅ 清理完成！所有临时userId数据已被删除。');
    console.log('✅ 现在数据库中只保留了真实userId的数据。');
    
  } catch (error) {
    console.error('❌ 清理过程中发生错误:', error);
  } finally {
    if (connection) {
      await connection.end();
      console.log('✅ 数据库连接已关闭');
    }
  }
}

// 执行清理操作
console.log('========== 开始清理临时userId数据 ==========');
cleanupTempUserIds().catch(console.error);