import {useCallback, useEffect, useRef} from 'react';

/**
 * Returns a function that returns the current mount state. This hook is useful when you have to
 * detect component mount state within async effects.
 *
 * @param initialValue Initial value.
 *
 * @return Function that returns `true` only if the component is mounted.
 */
export function useIsMounted(initialValue = false): () => boolean {
	const isMounted = useRef(initialValue);
	const get = useCallback(() => isMounted.current, []);

	useEffect(() => {
		isMounted.current = true;

		return () => {
			isMounted.current = false;
		};
	}, []);

	return get;
}