#!/usr/bin/env node
/**
 * run-regression.mjs — headless 回归 runner（CI / 本地均可）
 *
 * 前置：仓库根目录起 dev-server（node site/dev-server.js）
 * 依赖：npm i playwright（或全局已装）
 * 运行：node tools/run-regression.mjs
 * 产出：tests/report.json（首页「测试通过率」数据源）+ tests/report-junit.xml
 */
import { writeFileSync } from 'fs';

const BASE = process.env.REG_BASE || 'http://127.0.0.1:3311';
const CONC = 6;

const { chromium } = await import('playwright');
const browser = await chromium.launch();
const page = await browser.newPage({ viewport: { width: 1280, height: 800 } });

const data = await (await fetch(`${BASE}/site/data.json`)).json();
const slugs = data.components.map(c => c.slug);
const results = [];

async function runOne(browser, slug) {
  const p = await browser.newPage({ viewport: { width: 1200, height: 800 } });
  try {
    await p.goto(`${BASE}/tests/${slug}.html`, { waitUntil: 'load', timeout: 15000 });
    /* 断言在 iframe 演示页加载后自动执行；等汇总区出现结果 */
    await p.waitForFunction(() => document.getElementById('sum-total')?.textContent !== '总数 0', { timeout: 8000 })
      .catch(() => {});
    const btn = p.locator('#run-asserts');
    if (await btn.count()) { await btn.click(); await p.waitForTimeout(150); }
    const r = await p.evaluate(() => {
      const num = s => parseInt(String(s || '0').replace(/\D/g, '')) || 0;
      const t = id => { const n = document.getElementById(id); return n ? n.textContent : '0'; };
      const failures = [...document.querySelectorAll('#result-list .t-row')]
        .filter(li => li.querySelector('.t-pill')?.classList.contains('fail'))
        .map(li => li.querySelector('.id')?.textContent || '?')
        .slice(0, 8);
      return { total: num(t('sum-total')), pass: num(t('sum-pass')), fail: num(t('sum-fail')), skip: num(t('sum-skip')), failures };
    });
    results.push({ slug, ...r });
  } catch (e) {
    results.push({ slug, total: 0, pass: 0, fail: 1, skip: 0, failures: ['page-error'] });
  } finally {
    await p.close();
  }
}

for (let i = 0; i < slugs.length; i += CONC) {
  await Promise.all(slugs.slice(i, i + CONC).map(s => runOne(browser, s)));
}
await browser.close();

const totalAssert = results.reduce((s, r) => s + r.total, 0);
const passAssert = results.reduce((s, r) => s + r.pass, 0);
const failAssert = results.reduce((s, r) => s + r.fail, 0);
const skipAssert = results.reduce((s, r) => s + r.skip, 0);
/* 通过率分母排除 N/A（静态组件无交互面等），与 tests/_collect.html 同口径 */
const denom = passAssert + failAssert;
const pagesAllPass = results.filter(r => r.fail === 0 && r.total > 0).length;
const report = {
  generated: new Date().toISOString().slice(0, 19).replace('T', ' '),
  version: data.meta.version,
  pages: results.length,
  pagesAllPass,
  passRate: denom ? Math.round(passAssert / denom * 1000) / 10 : 0,
  assertions: { total: totalAssert, pass: passAssert, fail: failAssert, skip: skipAssert, na: totalAssert - denom },
  failedPages: results.filter(r => r.fail > 0).map(r => ({ slug: r.slug, fail: r.fail, failures: r.failures }))
};
writeFileSync('tests/report.json', JSON.stringify(report, null, 2) + '\n');

/* JUnit XML（供 CI 展示） */
const esc = s => String(s).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/"/g, '&quot;');
const cases = results.map(r =>
  `  <testcase name="tests/${r.slug}" time="0">` +
  (r.fail > 0 ? `<failure message="${esc((r.failures || []).join('; '))}">${r.fail} failed</failure>` : '') +
  `</testcase>`).join('\n');
writeFileSync('tests/report-junit.xml',
  `<?xml version="1.0" encoding="UTF-8"?>\n<testsuite name="aurora-admin tests" tests="${results.length}" failures="${results.filter(r => r.fail > 0).length}">\n${cases}\n</testsuite>\n`);

console.log(`passRate ${report.passRate}% | pages ${results.length} (all-pass ${pagesAllPass}) | assertions ${passAssert}/${totalAssert}`);
console.log('written: tests/report.json, tests/report-junit.xml');