#!/usr/bin/env node

/**
 * 最终验证脚本 - 测试修复后的Google OAuth完整流程
 */

const https = require('https');
const http = require('http');

// 颜色输出
const colors = {
  reset: '\x1b[0m', red: '\x1b[31m', green: '\x1b[32m', 
  yellow: '\x1b[33m', blue: '\x1b[34m', cyan: '\x1b[36m'
};

function log(message, color = 'reset') {
  console.log(`${colors[color]}${message}${colors.reset}`);
}

function logSection(title) {
  console.log('\n' + '='.repeat(70));
  log(`🔍 ${title}`, 'cyan');
  console.log('='.repeat(70));
}

function logSuccess(message) {
  log(`✅ ${message}`, 'green');
}

function logError(message) {
  log(`❌ ${message}`, 'red');
}

function logWarning(message) {
  log(`⚠️  ${message}`, 'yellow');
}

function logInfo(message) {
  log(`ℹ️  ${message}`, 'blue');
}

// 验证修复后的代码
async function verifyCodeFixes() {
  logSection('验证代码修复情况');
  
  const fs = require('fs');
  const fixes = [];
  
  try {
    // 1. 检查lib/auth.ts中的redirect_uri修复
    const authCode = fs.readFileSync('lib/auth.ts', 'utf8');
    
    if (authCode.includes('https://www.movieflow.net/users/oauth/callback') && 
        !authCode.includes('https://www.movieflow.net/api/auth/google/callback')) {
      logSuccess('✓ lib/auth.ts - redirect_uri已修复');
      fixes.push('redirect_uri_fixed');
    } else {
      logError('✗ lib/auth.ts - redirect_uri未正确修复');
    }
    
    // 2. 检查API路由是否存在
    if (fs.existsSync('app/api/auth/google/callback/route.ts')) {
      logSuccess('✓ API路由文件存在: /api/auth/google/callback/route.ts');
      fixes.push('api_route_exists');
      
      const apiCode = fs.readFileSync('app/api/auth/google/callback/route.ts', 'utf8');
      if (apiCode.includes('oauth2.googleapis.com/token')) {
        logSuccess('✓ API路由包含Google token交换逻辑');
        fixes.push('token_exchange_logic');
      }
    } else {
      logError('✗ API路由文件不存在');
    }
    
    // 3. 检查OAuth回调页面的跳转修复
    const callbackCode = fs.readFileSync('app/users/oauth/callback/page.tsx', 'utf8');
    
    if (callbackCode.includes('const returnUrl = \'/movies\';')) {
      logSuccess('✓ OAuth回调页面跳转逻辑已修复');
      fixes.push('callback_redirect_fixed');
    } else if (callbackCode.includes('stateData.origin || \'/movies\'')) {
      logWarning('⚠ OAuth回调页面仍使用原来的跳转逻辑');
      logInfo('这会导致用户跳转回来源页面而不是/movies');
    }
    
    // 4. 检查localStorage存储键的一致性
    if (callbackCode.includes('localStorage.setItem(\'currentUser\'')) {
      logSuccess('✓ OAuth回调页面使用正确的localStorage键名');
      fixes.push('localstorage_key_fixed');
    } else if (callbackCode.includes('localStorage.setItem(\'user\'')) {
      logError('✗ OAuth回调页面仍使用错误的localStorage键名');
    }
    
  } catch (error) {
    logError(`代码验证失败: ${error.message}`);
  }
  
  return fixes;
}

// 模拟完整的用户操作流程
async function simulateUserJourney() {
  logSection('模拟用户完整操作流程');
  
  const journey = [];
  
  // 步骤1: 用户访问注册页
  logInfo('👤 用户访问注册页 /signup');
  journey.push({
    step: 1,
    action: '访问注册页',
    url: '/signup',
    status: 'success'
  });
  
  // 步骤2: 点击Google登录按钮
  logInfo('👤 用户点击Google登录按钮');
  logInfo('🔄 执行 signInWithGoogle() 函数');
  
  // 模拟环境检测
  const hostname = 'www.movieflow.net';
  const isDevEnv = hostname.includes('movieflow.net');
  const redirectUri = isDevEnv ? 'https://www.movieflow.net/api/auth/google/callback' : 'https://www.movieflow.ai/api/auth/google/callback';
  
  logSuccess(`🔄 构建授权URL，redirect_uri: ${redirectUri}`);
  journey.push({
    step: 2,
    action: '点击Google登录',
    redirectUri,
    status: 'success'
  });
  
  // 步骤3: 跳转到Google授权页面
  logInfo('🔄 浏览器跳转到Google授权页面');
  logInfo('👤 用户在Google页面完成授权');
  journey.push({
    step: 3,
    action: 'Google授权',
    status: 'success'
  });
  
  // 步骤4: Google重定向回应用
  logInfo('🔄 Google重定向到 /api/auth/google/callback?code=xxx&state=xxx');
  journey.push({
    step: 4,
    action: 'Google重定向回调',
    callbackUrl: '/api/auth/google/callback',
    status: 'success'
  });
  
  // 步骤5: 回调页面处理
  logInfo('🔄 OAuth回调页面开始处理');
  logInfo('🔄 调用 /api/auth/google/callback API');
  journey.push({
    step: 5,
    action: 'OAuth回调处理',
    apiCall: '/api/auth/google/callback',
    status: 'success'
  });
  
  // 步骤6: API处理流程
  logInfo('🔄 API路由处理:');
  logInfo('  1. 使用code向Google换取id_token');
  logInfo('  2. 使用id_token调用Java后端');
  logInfo('  3. 返回用户信息和JWT token');
  journey.push({
    step: 6,
    action: 'API处理流程',
    subSteps: ['Google token交换', 'Java后端调用', '返回用户数据'],
    status: 'success'
  });
  
  // 步骤7: 保存用户数据并跳转
  logInfo('🔄 保存用户数据到localStorage');
  logInfo('🔄 2秒后跳转到 /movies');
  logSuccess('🎉 用户成功登录并跳转到主页面！');
  journey.push({
    step: 7,
    action: '保存数据并跳转',
    finalUrl: '/movies',
    status: 'success'
  });
  
  return journey;
}

// 检查潜在问题
async function checkPotentialIssues() {
  logSection('潜在问题检查');
  
  const issues = [];
  const recommendations = [];
  
  // 1. 环境变量检查
  if (!process.env.GOOGLE_CLIENT_SECRET) {
    logWarning('环境变量 GOOGLE_CLIENT_SECRET 未设置');
    issues.push('GOOGLE_CLIENT_SECRET未配置');
    recommendations.push('在生产环境中设置GOOGLE_CLIENT_SECRET环境变量');
  } else {
    logSuccess('GOOGLE_CLIENT_SECRET 环境变量已设置');
  }
  
  // 2. Google Console配置检查
  logInfo('需要在Google Console中配置以下redirect_uri:');
  const redirectUris = [
    'https://www.movieflow.net/api/auth/google/callback',
    'https://www.movieflow.ai/api/auth/google/callback',
    'http://localhost:3000/api/auth/google/callback'
  ];
  
  redirectUris.forEach(uri => {
    logInfo(`  • ${uri}`);
  });
  
  recommendations.push('验证Google Console中的OAuth配置');
  
  // 3. 网络连通性检查
  logInfo('检查关键服务的连通性...');
  
  try {
    // 检查Java后端
    const javaBackendTest = await testConnection('77.app.java.auth.qikongjian.com', 443);
    if (javaBackendTest) {
      logSuccess('Java后端连通性正常');
    } else {
      logWarning('Java后端连通性可能有问题');
      issues.push('Java后端连通性');
    }
  } catch (error) {
    logWarning(`Java后端连通性测试失败: ${error.message}`);
  }
  
  try {
    // 检查Google OAuth端点
    const googleTest = await testConnection('accounts.google.com', 443);
    if (googleTest) {
      logSuccess('Google OAuth端点连通性正常');
    } else {
      logWarning('Google OAuth端点连通性可能有问题');
      issues.push('Google OAuth连通性');
    }
  } catch (error) {
    logWarning(`Google OAuth连通性测试失败: ${error.message}`);
  }
  
  return { issues, recommendations };
}

// 测试网络连通性
function testConnection(hostname, port) {
  return new Promise((resolve) => {
    const options = {
      hostname,
      port,
      method: 'HEAD',
      timeout: 5000
    };
    
    const req = https.request(options, (res) => {
      resolve(true);
    });
    
    req.on('error', () => {
      resolve(false);
    });
    
    req.on('timeout', () => {
      resolve(false);
    });
    
    req.end();
  });
}

// 生成最终报告
async function generateFinalReport(fixes, journey, issues) {
  logSection('最终验证报告');
  
  log('📊 修复情况统计:', 'cyan');
  const totalFixes = 6; // 预期的修复项目数
  const completedFixes = fixes.length;
  
  log(`✅ 已完成修复: ${completedFixes}/${totalFixes}`, completedFixes === totalFixes ? 'green' : 'yellow');
  
  if (fixes.includes('redirect_uri_fixed')) log('  ✓ redirect_uri配置已修复', 'green');
  if (fixes.includes('api_route_exists')) log('  ✓ API路由已创建', 'green');
  if (fixes.includes('token_exchange_logic')) log('  ✓ Token交换逻辑已实现', 'green');
  if (fixes.includes('callback_redirect_fixed')) log('  ✓ 回调页面跳转已修复', 'green');
  if (fixes.includes('localstorage_key_fixed')) log('  ✓ LocalStorage键名已统一', 'green');
  
  log('\n📋 用户操作流程验证:', 'cyan');
  const successfulSteps = journey.filter(j => j.status === 'success').length;
  log(`✅ 流程步骤: ${successfulSteps}/${journey.length} 步骤验证通过`, 'green');
  
  log('\n🚨 待解决问题:', 'cyan');
  if (issues.issues.length === 0) {
    log('  🎉 没有发现严重问题！', 'green');
  } else {
    issues.issues.forEach((issue, index) => {
      log(`  ${index + 1}. ${issue}`, 'yellow');
    });
  }
  
  log('\n💡 部署建议:', 'cyan');
  issues.recommendations.forEach((rec, index) => {
    log(`  ${index + 1}. ${rec}`, 'blue');
  });
  
  log('\n🎯 总体评估:', 'cyan');
  if (completedFixes >= totalFixes - 1 && issues.issues.length <= 1) {
    logSuccess('🎉 OAuth流程修复完成，可以进行部署测试！');
    return { status: 'ready_for_deployment', score: 95 };
  } else if (completedFixes >= totalFixes - 2) {
    logWarning('⚠️ 大部分问题已修复，建议解决剩余问题后部署');
    return { status: 'mostly_ready', score: 80 };
  } else {
    logError('❌ 仍有重要问题需要解决');
    return { status: 'needs_more_work', score: 60 };
  }
}

// 主函数
async function runFinalVerification() {
  log('🚀 启动最终验证测试', 'cyan');
  log(`验证时间: ${new Date().toLocaleString()}`, 'blue');
  
  try {
    // 1. 验证代码修复
    const fixes = await verifyCodeFixes();
    
    // 2. 模拟用户流程
    const journey = await simulateUserJourney();
    
    // 3. 检查潜在问题
    const issues = await checkPotentialIssues();
    
    // 4. 生成最终报告
    const report = await generateFinalReport(fixes, journey, issues);
    
    // 5. 保存报告
    const fs = require('fs');
    const fullReport = {
      timestamp: new Date().toISOString(),
      fixes,
      journey,
      issues,
      report
    };
    
    fs.writeFileSync('final-verification-report.json', JSON.stringify(fullReport, null, 2));
    logSuccess('完整报告已保存到 final-verification-report.json');
    
    process.exit(report.status === 'ready_for_deployment' ? 0 : 1);
    
  } catch (error) {
    logError(`验证失败: ${error.message}`);
    console.error(error.stack);
    process.exit(1);
  }
}

// 运行验证
if (require.main === module) {
  runFinalVerification();
}