/**
 * Zulip用户注册真实环境测试脚本
 * 
 * 功能描述：
 * - 测试Zulip用户注册功能在真实环境下的表现
 * - 验证API调用是否正常工作
 * - 检查配置是否正确
 * 
 * 使用方法：
 * node test_zulip_registration.js
 * 
 * @author angjustinl
 * @version 1.0.0
 * @since 2025-01-06
 */

const https = require('https');
const { URLSearchParams } = require('url');

// 配置信息
const config = {
  zulipServerUrl: 'https://zulip.xinghangee.icu',
  zulipBotEmail: 'angjustinl@mail.angforever.top',
  zulipBotApiKey: 'lCPWCPfGh7WUHxwN56GF8oYXOpqNfGF8',
};

/**
 * 检查用户是否存在
 */
async function checkUserExists(email) {
  console.log(`🔍 检查用户是否存在: ${email}`);
  
  try {
    const url = `${config.zulipServerUrl}/api/v1/users`;
    const auth = Buffer.from(`${config.zulipBotEmail}:${config.zulipBotApiKey}`).toString('base64');
    
    const response = await fetch(url, {
      method: 'GET',
      headers: {
        'Authorization': `Basic ${auth}`,
        'Content-Type': 'application/json',
      },
    });

    if (!response.ok) {
      console.log(`❌ 获取用户列表失败: ${response.status} ${response.statusText}`);
      return false;
    }

    const data = await response.json();
    console.log(`📊 获取到 ${data.members?.length || 0} 个用户`);
    
    if (data.members && Array.isArray(data.members)) {
      const userExists = data.members.some(user => 
        user.email && user.email.toLowerCase() === email.toLowerCase()
      );
      
      console.log(`✅ 用户存在性检查完成: ${userExists ? '存在' : '不存在'}`);
      return userExists;
    }

    return false;

  } catch (error) {
    console.error(`❌ 检查用户存在性失败:`, error.message);
    return false;
  }
}

/**
 * 创建测试用户
 */
async function createTestUser(email, fullName, password) {
  console.log(`🚀 开始创建用户: ${email}`);
  
  try {
    const url = `${config.zulipServerUrl}/api/v1/users`;
    const auth = Buffer.from(`${config.zulipBotEmail}:${config.zulipBotApiKey}`).toString('base64');
    
    const requestBody = new URLSearchParams();
    requestBody.append('email', email);
    requestBody.append('full_name', fullName);
    
    if (password) {
      requestBody.append('password', password);
    }

    const response = await fetch(url, {
      method: 'POST',
      headers: {
        'Authorization': `Basic ${auth}`,
        'Content-Type': 'application/x-www-form-urlencoded',
      },
      body: requestBody.toString(),
    });

    const data = await response.json();

    if (!response.ok) {
      console.log(`❌ 用户创建失败: ${response.status} ${response.statusText}`);
      console.log(`📝 错误信息: ${data.msg || data.message || '未知错误'}`);
      return { success: false, error: data.msg || data.message };
    }

    console.log(`✅ 用户创建成功! 用户ID: ${data.user_id}`);
    return { success: true, userId: data.user_id };

  } catch (error) {
    console.error(`❌ 创建用户异常:`, error.message);
    return { success: false, error: error.message };
  }
}

/**
 * 测试连接
 */
async function testConnection() {
  console.log('🔗 测试Zulip服务器连接...');
  
  try {
    const url = `${config.zulipServerUrl}/api/v1/server_settings`;
    const response = await fetch(url);
    
    if (response.ok) {
      const data = await response.json();
      console.log(`✅ 连接成功! 服务器版本: ${data.zulip_version || '未知'}`);
      return true;
    } else {
      console.log(`❌ 连接失败: ${response.status} ${response.statusText}`);
      return false;
    }
  } catch (error) {
    console.error(`❌ 连接异常:`, error.message);
    return false;
  }
}

/**
 * 主测试函数
 */
async function main() {
  console.log('🎯 开始Zulip用户注册测试');
  console.log('=' * 50);
  
  // 1. 测试连接
  const connected = await testConnection();
  if (!connected) {
    console.log('❌ 无法连接到Zulip服务器，测试终止');
    return;
  }
  
  console.log('');
  
  // 2. 生成测试用户信息
  const timestamp = Date.now();
  const testEmail = `test_user_${timestamp}@example.com`;
  const testFullName = `Test User ${timestamp}`;
  const testPassword = 'test123456';
  
  console.log(`📋 测试用户信息:`);
  console.log(`   邮箱: ${testEmail}`);
  console.log(`   姓名: ${testFullName}`);
  console.log(`   密码: ${testPassword}`);
  console.log('');
  
  // 3. 检查用户是否已存在
  const userExists = await checkUserExists(testEmail);
  if (userExists) {
    console.log('⚠️  用户已存在，跳过创建测试');
    return;
  }
  
  console.log('');
  
  // 4. 创建用户
  const createResult = await createTestUser(testEmail, testFullName, testPassword);
  
  console.log('');
  console.log('📊 测试结果:');
  if (createResult.success) {
    console.log('✅ 用户注册功能正常工作');
    console.log(`   新用户ID: ${createResult.userId}`);
  } else {
    console.log('❌ 用户注册功能存在问题');
    console.log(`   错误信息: ${createResult.error}`);
  }
  
  console.log('');
  console.log('🎉 测试完成');
}

// 运行测试
main().catch(error => {
  console.error('💥 测试过程中发生未处理的错误:', error);
  process.exit(1);
});