/**
 * 生成1000个完整的账号数据（用于手动测试Stripe通过率）
 */

const AccountDataGenerator = require('./src/shared/libs/account-generator');
const CardGenerator = require('./src/shared/libs/card-generator');
const fs = require('fs');
const path = require('path');

console.log('\n========== 生成1000个账号数据 ==========\n');

async function generate() {
  const accountGen = new AccountDataGenerator();
  const cardGen = new CardGenerator(); // 不连接数据库，只生成
  
  const accounts = [];
  const stats = {
    total: 0,
    success: 0,
    failed: 0,
    binDistribution: {}
  };
  
  console.log('开始生成...\n');
  const startTime = Date.now();
  
  for (let i = 0; i < 1000; i++) {
    try {
      // 生成账号
      const account = accountGen.generateAccount();
      
      // 生成卡号
      const card = await cardGen.generate('unionpay');
      
      // 组合数据
      const fullAccount = {
        id: i + 1,
        email: account.email,
        password: account.password,
        firstName: account.firstName,
        lastName: account.lastName,
        cardNumber: card.number,
        expMonth: card.month,
        expYear: card.year,
        cvv: card.cvv,
        issuer: card.issuer,
        country: card.country,
        countryName: card.countryName
      };
      
      accounts.push(fullAccount);
      stats.success++;
      stats.total++;
      
      // 统计BIN分布（前6位）
      const bin6 = card.number.substring(0, 6);
      stats.binDistribution[bin6] = (stats.binDistribution[bin6] || 0) + 1;
      
      // 进度显示
      if ((i + 1) % 100 === 0) {
        console.log(`  进度: ${i + 1}/1000 (${((i + 1) / 10).toFixed(1)}%)`);
      }
      
    } catch (error) {
      stats.failed++;
      stats.total++;
      console.log(`  ❌ 第 ${i + 1} 个生成失败: ${error.message}`);
    }
  }
  
  const endTime = Date.now();
  const duration = ((endTime - startTime) / 1000).toFixed(2);
  
  console.log(`\n✅ 生成完成！耗时: ${duration}秒`);
  console.log(`   成功: ${stats.success}个`);
  console.log(`   失败: ${stats.failed}个\n`);
  
  // 保存为多种格式
  const timestamp = new Date().toISOString().replace(/[:.]/g, '-').split('T')[0];
  const outputDir = path.join(__dirname, 'generated-accounts');
  
  // 创建输出目录
  if (!fs.existsSync(outputDir)) {
    fs.mkdirSync(outputDir, { recursive: true });
  }
  
  // 1. JSON格式（完整数据）
  const jsonFile = path.join(outputDir, `accounts-1000-${timestamp}.json`);
  fs.writeFileSync(jsonFile, JSON.stringify(accounts, null, 2), 'utf-8');
  console.log(`✅ JSON文件: ${jsonFile}`);
  
  // 2. CSV格式（便于Excel打开）
  const csvFile = path.join(outputDir, `accounts-1000-${timestamp}.csv`);
  const csvHeader = 'ID,Email,Password,FirstName,LastName,CardNumber,ExpMonth,ExpYear,CVV,Issuer,Country,CountryName\n';
  const csvRows = accounts.map(a => 
    `${a.id},${a.email},${a.password},${a.firstName},${a.lastName},${a.cardNumber},${a.expMonth},${a.expYear},${a.cvv},${a.issuer},${a.country},${a.countryName}`
  ).join('\n');
  fs.writeFileSync(csvFile, csvHeader + csvRows, 'utf-8');
  console.log(`✅ CSV文件: ${csvFile}`);
  
  // 3. 可读格式（用于快速查看）
  const txtFile = path.join(outputDir, `accounts-1000-${timestamp}.txt`);
  let txtContent = '========== 1000个Windsurf测试账号 ==========\n\n';
  txtContent += `生成时间: ${new Date().toLocaleString('zh-CN')}\n`;
  txtContent += `总数: ${stats.success}个\n\n`;
  txtContent += '=' .repeat(80) + '\n\n';
  
  accounts.forEach((a, index) => {
    txtContent += `【账号 ${a.id}】\n`;
    txtContent += `  邮箱: ${a.email}\n`;
    txtContent += `  密码: ${a.password}\n`;
    txtContent += `  姓名: ${a.firstName} ${a.lastName}\n`;
    txtContent += `  卡号: ${a.cardNumber}\n`;
    txtContent += `  有效期: ${a.expMonth}/${a.expYear}\n`;
    txtContent += `  CVV: ${a.cvv}\n`;
    txtContent += `  银行: ${a.issuer}\n`;
    txtContent += `  国家: ${a.countryName} (${a.country})\n`;
    txtContent += '\n';
    
    if ((index + 1) % 50 === 0) {
      txtContent += '-'.repeat(80) + '\n\n';
    }
  });
  
  fs.writeFileSync(txtFile, txtContent, 'utf-8');
  console.log(`✅ TXT文件: ${txtFile}`);
  
  // 4. Stripe测试专用格式（卡号|有效期|CVV）
  const stripeFile = path.join(outputDir, `stripe-test-cards-${timestamp}.txt`);
  let stripeContent = '========== Stripe测试卡号列表 ==========\n\n';
  stripeContent += '格式: 卡号|有效期|CVV|邮箱\n\n';
  accounts.forEach(a => {
    stripeContent += `${a.cardNumber}|${a.expMonth}/${a.expYear}|${a.cvv}|${a.email}\n`;
  });
  fs.writeFileSync(stripeFile, stripeContent, 'utf-8');
  console.log(`✅ Stripe测试文件: ${stripeFile}`);
  
  // 统计报告
  console.log('\n========== 统计报告 ==========\n');
  
  console.log('BIN分布（前6位）：');
  const sortedBins = Object.entries(stats.binDistribution)
    .sort((a, b) => b[1] - a[1]);
  
  sortedBins.forEach(([bin, count], index) => {
    if (index < 5) {
      console.log(`  ${bin}: ${count}张 (${(count / stats.success * 100).toFixed(1)}%)`);
    }
  });
  
  console.log(`\n唯一BIN数: ${sortedBins.length}个`);
  console.log(`平均每个BIN: ${(stats.success / sortedBins.length).toFixed(1)}张`);
  
  // 示例账号
  console.log('\n========== 示例账号（前3个）==========\n');
  accounts.slice(0, 3).forEach(a => {
    console.log(`${a.id}. ${a.email} | ${a.password}`);
    console.log(`   卡号: ${a.cardNumber} | ${a.expMonth}/${a.expYear} | CVV: ${a.cvv}`);
    console.log(`   国家: ${a.countryName}\n`);
  });
  
  console.log('\n========== 使用说明 ==========\n');
  console.log('1. 打开 CSV 文件用 Excel 查看');
  console.log('2. 打开 TXT 文件查看完整信息');
  console.log('3. 使用 stripe-test-cards 文件手动测试Stripe');
  console.log('4. 建议测试方法：');
  console.log('   - 先测试前50个，记录通过率');
  console.log('   - 如果通过率高，再测试更多');
  console.log('   - 记录失败原因（卡被拒/金额不足/其他）');
  
  console.log('\n================================\n');
}

generate().catch(console.error);