// Run a saves-ui-test page in headless Chrome (CDP) and print the result.
//   node dev/cdp-chrome.mjs <url> [timeoutMs=240000]
import { launch, CDP } from './cdpshot.mjs';
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));

const [url, timeoutMs = '240000'] = process.argv.slice(2);
const t0 = Date.now();
const { url: wsUrl, kill } = await launch(url);
const cdp = new CDP(wsUrl);
try {
  await cdp.open();
  await cdp.send('Runtime.enable');
  await cdp.send('Page.enable');
  let out = null;
  const poll = async () => {
    try {
      const r = await cdp.send('Runtime.evaluate', { expression: 'window.__SAVES_UI__', returnByValue: true });
      if (r.result && r.result.value) out = r.result.value;
    } catch { /* page still booting */ }
  };
  while (Date.now() - t0 < Number(timeoutMs)) {
    await poll();
    if (out) break;
    await sleep(500);
  }
  if (!out) {
    // Dump captured console errors to help diagnose.
    try {
      const r = await cdp.send('Runtime.evaluate', { expression: 'JSON.stringify({errors: window.__CAPTURED_ERRORS__, logs: (window.__CAPTURED_LOGS__||[]).slice(-30)})', returnByValue: true });
      console.log('PAGE STATE:\n', r.result && r.result.value);
    } catch {}
    console.log('TIMEOUT — __SAVES_UI__ never set');
    process.exitCode = 2;
  } else {
    console.log(JSON.stringify(out, null, 2));
    if (!out.pass) process.exitCode = 1;
  }
} finally {
  cdp.close();
  kill();
}