/** Promise 超时包装：超时后 reject，不取消原任务。 */
export function withTimeout<T>(
  promise: Promise<T>,
  ms: number,
  message = 'TIMEOUT',
): Promise<T> {
  return new Promise<T>((resolve, reject) => {
    const timer = window.setTimeout(() => reject(new Error(message)), ms);
    promise.then(
      (value) => {
        window.clearTimeout(timer);
        resolve(value);
      },
      (err) => {
        window.clearTimeout(timer);
        reject(err);
      },
    );
  });
}

export function isTimeoutError(error: unknown): boolean {
  return error instanceof Error && error.message === 'TIMEOUT';
}