/* cdp-verify-infocard-title.mjs — 验证：视频信息卡顶部新增标题「视频信息」（09-01） */
const CDP = 'http://127.0.0.1:9223';
async function getWs(targetId) {
  const tabs = await (await fetch(CDP + '/json')).json();
  const t = tabs.find((x) => x.id === targetId);
  if (!t) throw new Error('target not found: ' + targetId);
  return t.webSocketDebuggerUrl;
}
function cdp(ws, method, params = {}) {
  return new Promise((resolve, reject) => {
    const id = ++cdp._id;
    const w = new WebSocket(ws);
    const timer = setTimeout(() => { try { w.close(); } catch (e) {} reject(new Error('timeout: ' + method)); }, 30000);
    w.onopen = () => w.send(JSON.stringify({ id, method, params }));
    w.onmessage = (ev) => {
      const m = JSON.parse(ev.data);
      if (m.id !== id) return;
      clearTimeout(timer);
      try { w.close(); } catch (e) {}
      m.error ? reject(new Error(method + ': ' + JSON.stringify(m.error))) : resolve(m.result);
    };
    w.onerror = () => { clearTimeout(timer); reject(new Error('ws error: ' + method)); };
  });
}
cdp._id = 0;
async function evalJs(ws, expr) {
  const r = await cdp(ws, 'Runtime.evaluate', { expression: expr, awaitPromise: true, returnByValue: true });
  if (r.exceptionDetails) throw new Error('eval err: ' + JSON.stringify(r.exceptionDetails).slice(0, 300));
  return r.result && r.result.value;
}
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
const waitFor = async (ws, expr, timeout = 15000, label = '') => {
  const t0 = Date.now();
  while (Date.now() - t0 < timeout) {
    if (await evalJs(ws, expr)) return true;
    await sleep(300);
  }
  throw new Error('waitFor timeout: ' + label);
};

async function main() {
  const tabs = await (await fetch(CDP + '/json')).json();
  const tab = tabs.find((x) => x.url.includes('localhost:8900')) || tabs.find((x) => x.type === 'page');
  if (!tab) throw new Error('no 8900 tab found');
  const ws = await getWs(tab.id);
  await cdp(ws, 'Page.enable');
  await cdp(ws, 'Runtime.enable');

  let pass = 0, fail = 0;
  const check = (name, cond, extra = '') => { cond ? pass++ : fail++; console.log((cond ? 'PASS' : 'FAIL') + ' | ' + name + (cond ? '' : '  ← ' + extra)); };

  await cdp(ws, 'Page.navigate', { url: 'http://localhost:8900/?v=ic' + Date.now() + '#/video/680' });
  await waitFor(ws, `!!document.querySelector('.video-info')`, 15000, '视频详情渲染');

  const r = await evalJs(ws, `(() => {
    const card = document.querySelector('.video-info');
    const titleEl = card ? card.querySelector('.info-card-title') : null;
    const rows = card ? [...card.querySelectorAll('.info-row')] : [];
    return {
      hasTitle: !!titleEl,
      titleText: titleEl ? titleEl.textContent.trim() : null,
      rowCount: rows.length,
      firstLabel: rows[0] ? rows[0].querySelector('.info-label').textContent.trim() : null,
      hasBorder: titleEl ? getComputedStyle(titleEl).borderBottomWidth !== '0px' : false
    };
  })()`);

  check('信息卡内存在标题元素 .info-card-title', r.hasTitle);
  check('标题文案 = 视频信息', r.titleText === '视频信息', '实际: ' + r.titleText);
  check('标题位于首行(标签)之前', r.hasTitle && r.firstLabel === '标签' && r.rowCount === 3, `rows=${r.rowCount}`);
  check('标题带分隔线样式', r.hasBorder);

  console.log(`\nRESULT: ${pass}/${pass + fail}`);
  process.exit(fail ? 1 : 0);
}
main().catch((e) => { console.error('ERROR', e.message); process.exit(1); });