/**
 * @author Kuitos
 * @homepage https://github.com/kuitos/
 * @since 2018-03-19
 */
export type ICacheLike<T> = {
  get(key: string): T | undefined;
  set(key: string, value: T): void;
} & ({ del(key: string): void } | { delete(key: string): void });

export default function isCacheLike(cache: any): cache is ICacheLike<any> {
	if (cache == null) {
		return false;
	}

	const cacheType = typeof cache;
	if (cacheType !== 'object' && cacheType !== 'function') {
		return false;
	}

	return (
		typeof cache.get === 'function'
		&& typeof cache.set === 'function'
		&& (typeof cache.delete === 'function' || typeof cache.del === 'function')
	);
}