/* cdp-verify-addr.mjs — 验证视频详情页：工具栏标题去重(静态"视频详情") + 第一行改为"视频地址"(点击打开视频) + 2/3行四字段等宽（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) => { cond ? pass++ : fail++; console.log((cond ? 'PASS' : 'FAIL') + ' | ' + name); };

  await cdp(ws, 'Page.navigate', { url: 'http://localhost:8900/?v=addr#/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 rows = card ? [...card.querySelectorAll('.info-row')] : [];
    const rowLabels = rows.map((row) => [...row.querySelectorAll('.info-label')].map((l) => l.textContent.trim()));
    const firstItem = rows[0] ? rows[0].querySelector('.info-item') : null;
    const firstLink = firstItem ? firstItem.querySelector('a.link') : null;
    const widths = rows.slice(1).map((row) => [...row.querySelectorAll('.info-item')].map((it) => Math.round(it.getBoundingClientRect().width)));
    const pageTitle = document.querySelector('.page-toolbar .page-title');
    const hasRenderErr = document.body.textContent.includes('渲染失败');
    return {
      rowCount: rows.length,
      rowLabels,
      firstLabel: firstItem ? firstItem.querySelector('.info-label').textContent.trim() : '',
      firstHref: firstLink ? firstLink.getAttribute('data-ext') : null,
      firstText: firstItem ? firstItem.querySelector('.info-value').textContent.trim().slice(0, 40) : '',
      pageTitle: pageTitle ? pageTitle.textContent.trim() : '',
      widths,
      hasRenderErr
    };
  })()`);

  check('工具栏标题为静态「视频详情」（非视频标题）', r.pageTitle === '视频详情');
  check('信息卡共 4 行', r.rowCount === 4);
  check('第1行 label=视频地址（' + r.firstLabel + '）', r.firstLabel === '视频地址');
  check('第1行值为可点击链接且指向视频 URL', !!r.firstHref && r.firstHref.startsWith('http'));
  check('第2行=账号/视频ID/时长/发布时间', JSON.stringify(r.rowLabels[1]) === JSON.stringify(['账号', '视频ID', '时长', '发布时间']));
  check('第3行=点赞/评论/分享/收藏', JSON.stringify(r.rowLabels[2]) === JSON.stringify(['点赞', '评论', '分享', '收藏']));
  check('第4行=标签', JSON.stringify(r.rowLabels[3]) === JSON.stringify(['标签']));
  check('第2行四字段等宽（' + r.widths[0] + '）', new Set(r.widths[0]).size === 1);
  check('第3行四字段等宽（' + r.widths[1] + '）', new Set(r.widths[1]).size === 1);
  check('无渲染失败', !r.hasRenderErr);

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