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

console.log('🔍 测试监控和告警系统...');

const alertFile = 'test-results/alerts.json';

const mockMetrics = [
  {
    timestamp: Date.now() - 3600000,
    tier: 'fast',
    totalTests: 100,
    passedTests: 95,
    failedTests: 5,
    skippedTests: 0,
    duration: 60000,
    successRate: 0.95,
  },
  {
    timestamp: Date.now() - 1800000,
    tier: 'standard',
    totalTests: 200,
    passedTests: 180,
    failedTests: 15,
    skippedTests: 5,
    duration: 180000,
    successRate: 0.9,
  },
  {
    timestamp: Date.now(),
    tier: 'deep',
    totalTests: 50,
    passedTests: 40,
    failedTests: 10,
    skippedTests: 0,
    duration: 600000,
    successRate: 0.8,
  },
];

console.log('📊 模拟测试指标...');

const alertManager = {
  alerts: [],
  alertFile,
  
  createAlert(severity, message, tier, metrics) {
    const alert = {
      id: `alert-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`,
      timestamp: Date.now(),
      severity,
      message,
      tier,
      metrics,
      resolved: false,
    };
    this.alerts.push(alert);
    console.log(`🚨 [${severity.toUpperCase()}] ${message}`);
    return alert;
  },
  
  getAlertSummary() {
    const activeAlerts = this.alerts.filter(a => !a.resolved);
    const bySeverity = { low: 0, medium: 0, high: 0, critical: 0 };
    activeAlerts.forEach(a => bySeverity[a.severity]++);
    return { total: this.alerts.length, active: activeAlerts.length, bySeverity };
  },
};

console.log('🔍 检查告警规则...');

for (const metric of mockMetrics) {
  if (metric.successRate < 0.8) {
    alertManager.createAlert('critical', '测试通过率低于80%', metric.tier, metric);
  } else if (metric.successRate < 0.9) {
    alertManager.createAlert('high', '测试通过率低于90%', metric.tier, metric);
  }
  
  if (metric.failedTests > 10) {
    alertManager.createAlert('high', '失败测试数量超过10个', metric.tier, metric);
  }
  
  if (metric.tier === 'deep' && metric.failedTests > 0) {
    alertManager.createAlert('critical', '深度层测试存在失败', metric.tier, metric);
  }
}

const summary = alertManager.getAlertSummary();
console.log('\n📊 告警统计:');
console.log(`  总告警数: ${summary.total}`);
console.log(`  活跃告警: ${summary.active}`);
console.log(`  Critical: ${summary.bySeverity.critical}`);
console.log(`  High: ${summary.bySeverity.high}`);
console.log(`  Medium: ${summary.bySeverity.medium}`);
console.log(`  Low: ${summary.bySeverity.low}`);

if (summary.active > 0) {
  console.log('\n✅ 监控系统工作正常，已生成告警');
  process.exit(0);
} else {
  console.log('\n⚠️  未生成告警');
  process.exit(1);
}