interface APIError extends Error {
	response?: Response;
}

const RETRY_AFTER_HEADER = 'Retry-After';

const withExponentialBackoff = async <T>(apiCall: () => Promise<T>, maxRetries = 5, initialDelaySeconds = 1) => {
	for (let attempt = 0; attempt < maxRetries; attempt++) {
		try {
			const result = await apiCall();
			return result;
		} catch (error: any) {
			if ((error as APIError).response?.status === 429 && attempt < maxRetries - 1) {
				const retryAfter = (error as APIError).response?.headers.get(RETRY_AFTER_HEADER);
				const delay = retryAfter ? parseInt(retryAfter, 10) : initialDelaySeconds * 2 ** attempt;
				console.log(`Hit rate limit. Retrying in ${delay} seconds (attempt ${attempt + 1})`);
				await new Promise(resolve => setTimeout(resolve, delay * 1000));
			} else {
				throw error; // Re-throw other errors
			}
		}
	}
	throw new Error('Failed to make API call after multiple retries');
};

export { withExponentialBackoff };