/**
 * AWOOOI 無頭偵察兵 - Playwright 前端視覺驗證
 * ==================================================
 *
 * 職責:
 * 1. 驅動真實瀏覽器訪問正式環境
 * 2. 擷取 Console 錯誤 (紅字檢測)
 * 3. 檢查關鍵 DOM 元素是否渲染真實數據
 * 4. 等待 SSE 串流與 React Hydration
 *
 * 用法:
 *   node scripts/verify-frontend.js
 *
 * 憲法條款 14: 嚴禁依賴 curl 盲目驗收
 * 憲法條款 15: 必須親眼確認 DOM 渲染結果
 */

const { chromium } = require('playwright');

const TARGET_URL = process.env.TARGET_URL || 'https://awoooi.wooo.work';
const WAIT_TIME = parseInt(process.env.WAIT_TIME || '8000', 10);

async function runQA() {
  console.log('============================================================');
  console.log('  AWOOOI 無頭偵察兵 - Playwright 視覺驗證');
  console.log('============================================================');
  console.log(`目標: ${TARGET_URL}`);
  console.log(`等待時間: ${WAIT_TIME}ms`);
  console.log('');

  const browser = await chromium.launch({ headless: true });
  const context = await browser.newContext({
    viewport: { width: 1920, height: 1080 },
    userAgent: 'AWOOOI-QA-Bot/1.0 Playwright',
  });
  const page = await context.newPage();

  // 收集 Console 錯誤
  const errors = [];
  const warnings = [];

  page.on('console', (msg) => {
    if (msg.type() === 'error') {
      errors.push(msg.text());
    } else if (msg.type() === 'warning') {
      warnings.push(msg.text());
    }
  });

  page.on('pageerror', (err) => {
    errors.push(`[PageError] ${err.message}`);
  });

  // Request 失敗追蹤
  page.on('requestfailed', (request) => {
    errors.push(`[RequestFailed] ${request.url()} - ${request.failure()?.errorText}`);
  });

  try {
    console.log('🚀 導航至目標頁面...');
    await page.goto(TARGET_URL, {
      waitUntil: 'domcontentloaded',
      timeout: 60000,
    });

    console.log(`⏳ 等待 ${WAIT_TIME}ms (SSE 串流 + React Hydration)...`);
    await page.waitForTimeout(WAIT_TIME);

    // =========================================================================
    // DOM 內容檢查
    // =========================================================================
    console.log('\n📋 DOM 內容分析...');

    const bodyText = await page.textContent('body');
    const pageTitle = await page.title();

    // 關鍵指標檢查
    const checks = {
      // 事件數據檢查
      hasIncidentId: bodyText.includes('INC-'),
      hasAlertKeywords: bodyText.includes('告警') || bodyText.includes('警告') || bodyText.includes('事件'),

      // GlobalPulse 指標檢查 (非零數據)
      hasRpsData: /\d+\.\d+\s*(req\/s|RPS)/i.test(bodyText),
      hasLatencyData: /\d+\s*(ms|毫秒)/i.test(bodyText),

      // 基本頁面結構
      hasTitle: pageTitle.length > 0,
      hasNavigation: bodyText.includes('戰情室') || bodyText.includes('Dashboard'),
    };

    // 截圖保存
    const screenshotPath = `/tmp/awoooi-qa-${Date.now()}.png`;
    await page.screenshot({ path: screenshotPath, fullPage: true });
    console.log(`📸 截圖已保存: ${screenshotPath}`);

    // =========================================================================
    // 報告輸出
    // =========================================================================
    console.log('\n============================================================');
    console.log('  🔍 視覺驗證報告');
    console.log('============================================================');
    console.log(`📄 頁面標題: ${pageTitle}`);
    console.log('');

    // Console 錯誤報告
    console.log('🔴 Console 錯誤:');
    if (errors.length === 0) {
      console.log('   ✅ 零錯誤 (Clean)');
    } else {
      console.log(`   ❌ 發現 ${errors.length} 個錯誤:`);
      errors.slice(0, 10).forEach((e, i) => {
        console.log(`      ${i + 1}. ${e.substring(0, 100)}...`);
      });
    }

    // Console 警告報告
    if (warnings.length > 0) {
      console.log(`\n⚠️  Console 警告: ${warnings.length} 個`);
    }

    // DOM 數據檢查報告
    console.log('\n📊 DOM 數據檢查:');
    console.log(`   ${checks.hasIncidentId ? '✅' : '❌'} 事件 ID (INC-*)`);
    console.log(`   ${checks.hasAlertKeywords ? '✅' : '❌'} 告警關鍵字`);
    console.log(`   ${checks.hasRpsData ? '✅' : '❌'} RPS 數據`);
    console.log(`   ${checks.hasLatencyData ? '✅' : '❌'} Latency 數據`);
    console.log(`   ${checks.hasNavigation ? '✅' : '❌'} 導航元素`);

    // 最終判定
    const hasRealData = checks.hasIncidentId || checks.hasAlertKeywords || checks.hasRpsData;
    const isClean = errors.length === 0;

    console.log('\n============================================================');
    console.log('  📋 最終判定');
    console.log('============================================================');
    console.log(`Console 狀態: ${isClean ? '✅ 零紅字' : '❌ 有錯誤'}`);
    console.log(`數據渲染狀態: ${hasRealData ? '✅ 有真實數據' : '⚠️  數據不足'}`);
    console.log('');

    await browser.close();

    // 退出碼決定
    if (!isClean) {
      console.log('❌ 驗收失敗: Console 存在錯誤');
      process.exit(1);
    }

    // 數據不足不阻塞，但輸出警告
    if (!hasRealData) {
      console.log('⚠️  警告: 畫面數據不足，可能需要注入告警或等待 SSE');
    }

    console.log('✅ 視覺驗證通過');
    process.exit(0);

  } catch (err) {
    console.error('❌ 驗證過程發生錯誤:', err.message);
    await browser.close();
    process.exit(1);
  }
}

runQA().catch((err) => {
  console.error('❌ 腳本執行失敗:', err);
  process.exit(1);
});