export const TRANSIENT_DOWNLOAD_STATUSES = [
  408, 425, 429, 500, 502, 503, 504,
] as const;
export function leaseStorageKey(id: string): string {
  return `quickdrop-lease:${id}`;
}
export async function retryTransient(
  operation: () => Promise<Response>,
  attempts = 5,
): Promise<Response> {
  for (let attempt = 0; ; attempt++) {
    try {
      const response = await operation();
      if (
        response.ok ||
        !TRANSIENT_DOWNLOAD_STATUSES.includes(response.status as never) ||
        attempt >= attempts - 1
      )
        return response;
    } catch (error) {
      if (attempt >= attempts - 1) throw error;
    }
    await new Promise((resolve) =>
      setTimeout(
        resolve,
        Math.round(500 * 2 ** attempt * (0.8 + Math.random() * 0.4)),
      ),
    );
  }
}