export async function waitForHttp(url, options = {}) {
  const timeoutMs = options.timeoutMs || 60000;
  const intervalMs = options.intervalMs || 500;
  const attemptTimeoutMs = options.attemptTimeoutMs || 5000;
  const start = Date.now();
  let lastError;

  while (Date.now() - start < timeoutMs) {
    const remainingMs = timeoutMs - (Date.now() - start);
    if (remainingMs <= 0) break;

    const controller = new AbortController();
    const timeout = setTimeout(() => controller.abort(), Math.min(attemptTimeoutMs, remainingMs));
    timeout.unref?.();

    try {
      const response = await fetch(url, { cache: 'no-store', signal: controller.signal });
      if (response.ok) return response;
      lastError = new Error(`HTTP ${response.status}`);
    } catch (error) {
      lastError = error;
    } finally {
      clearTimeout(timeout);
    }

    const remainingAfterAttemptMs = timeoutMs - (Date.now() - start);
    if (remainingAfterAttemptMs <= 0) break;
    await new Promise((resolve) => setTimeout(resolve, Math.min(intervalMs, remainingAfterAttemptMs)));
  }

  throw new Error(`Timed out waiting for ${url}: ${lastError?.message || 'no response'}`);
}