Function waitFor

scripts/debug-video-effects-headless.mjs:828–862

(cdp, label, expression, timeout = timeoutMs)

    probe: await collectProbe(cdp),
  });
  throw new Error(`Element not found or disabled: ${testId}`);
};

const clickSelector = async (cdp, selector, timeout = 5000) => {
  const started = Date.now();
  while (Date.now() - started < timeout) {
    const ok = await evalValue(
      cdp,
      `(() => {
        const element = document.querySelector(${JSON.stringify(selector)});
        if (!(element instanceof HTMLElement)) return false;
        if (element instanceof HTMLButtonElement && element.disabled) return false;
        element.click();
        return true;
      })()`,
    ).catch(() => false);
    if (ok) return;
    await sleep(150);
  }
  emit("click_selector_failed", {
    selector,
    elapsedMs: Date.now() - started,
    probe: await collectProbe(cdp),
  });
  throw new Error(`Element not found or disabled: ${selector}`);
};

const turnCameraOnIfNeeded = async (cdp, label) => {
  const cameraState = await waitFor(
    cdp,
    `${label} camera state`,
    `(() => {
      const debug = window.__conclaveGetMeetVideoDebug?.();
      const liveVideoFromDebug =
        debug?.rawTrack?.readyState === "live" ||
        debug?.localStream?.videoTracks?.some?.((track) => track.readyState === "live") ||
        false;
      const liveVideoFromElement = Array.from(document.querySelectorAll("video")).some((video) => {