#!/usr/bin/env node

/**
 * 质量门禁检查工具
 * 定义和执行自动化质量标准，阻止低质量代码合并
 */

const fs = require('fs');
const path = require('path');

class QualityGate {
  constructor() {
    this.qualityStandards = {
      passRate: 95, // 通过率必须 >= 95%
      flakyRate: 5, // 不稳定测试比例必须 <= 5%
      maxDuration: 600000, // 总测试时间必须 <= 10分钟
      maxFailedTests: 5, // 失败测试数量必须 <= 5
      maxSlowTests: 10, // 慢速测试数量必须 <= 10
    };

    this.checks = [];
    this.passed = true;
    this.warnings = [];
    this.errors = [];
  }

  checkPassRate(results) {
    const passRate = results.summary?.passRate || 0;
    const threshold = this.qualityStandards.passRate;

    if (passRate < threshold) {
      this.errors.push({
        check: '通过率检查',
        message: `测试通过率 ${passRate.toFixed(2)}% 低于标准 ${threshold}%`,
        actual: passRate,
        threshold: threshold,
        status: 'failed',
      });
      this.passed = false;
    } else {
      this.checks.push({
        check: '通过率检查',
        message: `测试通过率 ${passRate.toFixed(2)}% 符合标准`,
        actual: passRate,
        threshold: threshold,
        status: 'passed',
      });
    }
  }

  checkFlakyRate(results) {
    const flakyRate = results.summary?.flakyRate || 0;
    const threshold = this.qualityStandards.flakyRate;

    if (flakyRate > threshold) {
      this.warnings.push({
        check: '不稳定测试检查',
        message: `不稳定测试比例 ${flakyRate.toFixed(2)}% 超过标准 ${threshold}%`,
        actual: flakyRate,
        threshold: threshold,
        status: 'warning',
      });
    } else {
      this.checks.push({
        check: '不稳定测试检查',
        message: `不稳定测试比例 ${flakyRate.toFixed(2)}% 符合标准`,
        actual: flakyRate,
        threshold: threshold,
        status: 'passed',
      });
    }
  }

  checkDuration(results) {
    const duration = results.summary?.totalDuration || 0;
    const threshold = this.qualityStandards.maxDuration;

    if (duration > threshold) {
      this.warnings.push({
        check: '测试耗时检查',
        message: `测试总耗时 ${this.formatDuration(duration)} 超过标准 ${this.formatDuration(threshold)}`,
        actual: duration,
        threshold: threshold,
        status: 'warning',
      });
    } else {
      this.checks.push({
        check: '测试耗时检查',
        message: `测试总耗时 ${this.formatDuration(duration)} 符合标准`,
        actual: duration,
        threshold: threshold,
        status: 'passed',
      });
    }
  }

  checkFailedTests(results) {
    const failedCount = results.failedTests?.length || 0;
    const threshold = this.qualityStandards.maxFailedTests;

    if (failedCount > threshold) {
      this.errors.push({
        check: '失败测试数量检查',
        message: `失败测试数量 ${failedCount} 超过标准 ${threshold}`,
        actual: failedCount,
        threshold: threshold,
        status: 'failed',
      });
      this.passed = false;
    } else {
      this.checks.push({
        check: '失败测试数量检查',
        message: `失败测试数量 ${failedCount} 符合标准`,
        actual: failedCount,
        threshold: threshold,
        status: 'passed',
      });
    }
  }

  checkSlowTests(results) {
    const slowCount = results.slowestTests?.length || 0;
    const threshold = this.qualityStandards.maxSlowTests;

    if (slowCount > threshold) {
      this.warnings.push({
        check: '慢速测试数量检查',
        message: `慢速测试数量 ${slowCount} 超过标准 ${threshold}`,
        actual: slowCount,
        threshold: threshold,
        status: 'warning',
      });
    } else {
      this.checks.push({
        check: '慢速测试数量检查',
        message: `慢速测试数量 ${slowCount} 符合标准`,
        actual: slowCount,
        threshold: threshold,
        status: 'passed',
      });
    }
  }

  checkCriticalTests(results) {
    const criticalTests = results.failedTests?.filter(test => {
      const title = test.title.toLowerCase();
      return title.includes('登录') || title.includes('认证') || title.includes('安全');
    }) || [];

    if (criticalTests.length > 0) {
      this.errors.push({
        check: '关键功能测试检查',
        message: `关键功能测试失败: ${criticalTests.map(t => t.title).join(', ')}`,
        actual: criticalTests.length,
        threshold: 0,
        status: 'failed',
      });
      this.passed = false;
    } else {
      this.checks.push({
        check: '关键功能测试检查',
        message: '所有关键功能测试通过',
        actual: 0,
        threshold: 0,
        status: 'passed',
      });
    }
  }

  execute(results) {
    this.checkPassRate(results);
    this.checkFlakyRate(results);
    this.checkDuration(results);
    this.checkFailedTests(results);
    this.checkSlowTests(results);
    this.checkCriticalTests(results);

    return this.generateReport();
  }

  generateReport() {
    const report = {
      timestamp: new Date().toISOString(),
      passed: this.passed,
      summary: {
        total: this.checks.length,
        passed: this.checks.filter(c => c.status === 'passed').length,
        warnings: this.warnings.length,
        errors: this.errors.length,
      },
      checks: this.checks,
      warnings: this.warnings,
      errors: this.errors,
    };

    this.printReport(report);
    this.saveReport(report);

    return report;
  }

  printReport(report) {
    console.log('');
    console.log('═══════════════════════════════════════════');
    console.log('🚪 质量门禁检查报告');
    console.log('═══════════════════════════════════════════');
    console.log('');
    console.log(`📊 检查时间: ${new Date(report.timestamp).toLocaleString('zh-CN')}`);
    console.log(`📈 检查结果: ${report.passed ? '✅ 通过' : '❌ 失败'}`);
    console.log('');
    console.log(`📋 检查统计:`);
    console.log(`  - 总检查项: ${report.summary.total}`);
    console.log(`  - 通过: ${report.summary.passed}`);
    console.log(`  - 警告: ${report.summary.warnings}`);
    console.log(`  - 错误: ${report.summary.errors}`);
    console.log('');

    if (report.checks.length > 0) {
      console.log('✅ 通过的检查:');
      report.checks.forEach(check => {
        console.log(`  ✓ ${check.check}: ${check.message}`);
      });
      console.log('');
    }

    if (report.warnings.length > 0) {
      console.log('⚠️  警告:');
      report.warnings.forEach(warning => {
        console.log(`  ⚠️  ${warning.check}: ${warning.message}`);
      });
      console.log('');
    }

    if (report.errors.length > 0) {
      console.log('❌ 错误:');
      report.errors.forEach(error => {
        console.log(`  ❌ ${error.check}: ${error.message}`);
      });
      console.log('');
    }

    console.log('═══════════════════════════════════════════');
    console.log('');

    if (!report.passed) {
      console.error('❌ 质量门禁检查失败！请修复错误后重试。');
      process.exit(1);
    }
  }

  saveReport(report) {
    const dir = path.join(process.cwd(), 'test-results');
    if (!fs.existsSync(dir)) {
      fs.mkdirSync(dir, { recursive: true });
    }

    const reportPath = path.join(dir, 'quality-gate-report.json');
    fs.writeFileSync(reportPath, JSON.stringify(report, null, 2), 'utf-8');
    console.log(`📄 质量门禁报告已保存: ${reportPath}`);
  }

  formatDuration(ms) {
    if (ms < 1000) {
      return `${ms}ms`;
    } else if (ms < 60000) {
      return `${(ms / 1000).toFixed(1)}s`;
    } else {
      return `${(ms / 60000).toFixed(1)}m`;
    }
  }

  setStandard(standard, value) {
    if (this.qualityStandards.hasOwnProperty(standard)) {
      this.qualityStandards[standard] = value;
      console.log(`✅ 质量标准已更新: ${standard} = ${value}`);
    } else {
      console.error(`❌ 错误: 未知的质量标准 ${standard}`);
      process.exit(1);
    }
  }

  getStandards() {
    console.log('当前质量标准:');
    console.log('');
    console.log(`  通过率: >= ${this.qualityStandards.passRate}%`);
    console.log(`  不稳定测试比例: <= ${this.qualityStandards.flakyRate}%`);
    console.log(`  最大测试时间: <= ${this.formatDuration(this.qualityStandards.maxDuration)}`);
    console.log(`  最大失败测试数: <= ${this.qualityStandards.maxFailedTests}`);
    console.log(`  最大慢速测试数: <= ${this.qualityStandards.maxSlowTests}`);
    console.log('');
  }
}

// 命令行接口
if (require.main === module) {
  const qualityGate = new QualityGate();
  const command = process.argv[2];

  switch (command) {
    case 'check':
      const resultsFile = process.argv[3];
      if (resultsFile && fs.existsSync(resultsFile)) {
        const results = JSON.parse(fs.readFileSync(resultsFile, 'utf-8'));
        qualityGate.execute(results);
      } else {
        console.error('❌ 错误: 请提供有效的测试结果文件');
        process.exit(1);
      }
      break;

    case 'set':
      const standard = process.argv[3];
      const value = parseFloat(process.argv[4]);
      if (standard && !isNaN(value)) {
        qualityGate.setStandard(standard, value);
      } else {
        console.error('❌ 错误: 请提供有效的标准和数值');
        console.error('用法: node qualityGate.js set <standard> <value>');
        process.exit(1);
      }
      break;

    case 'standards':
      qualityGate.getStandards();
      break;

    default:
      console.log('质量门禁检查工具');
      console.log('');
      console.log('用法:');
      console.log('  node qualityGate.js check <results.json> - 执行质量门禁检查');
      console.log('  node qualityGate.js set <standard> <value> - 设置质量标准');
      console.log('  node qualityGate.js standards - 显示当前质量标准');
      console.log('');
      console.log('质量标准:');
      console.log('  - passRate: 通过率 (%)');
      console.log('  - flakyRate: 不稳定测试比例 (%)');
      console.log('  - maxDuration: 最大测试时间 (ms)');
      console.log('  - maxFailedTests: 最大失败测试数');
      console.log('  - maxSlowTests: 最大慢速测试数');
      console.log('');
      break;
  }
}

module.exports = QualityGate;