import { useEffect, useState } from "react";

/**
 * Use this hook when you need to debounce a value.
 * @param value
 * @param delay in milliseconds
 */
export const useDebounce = <T>(value: T, delay: number) => {
  // State and setters for debounced value
  const [debouncedValue, setDebouncedValue] = useState<T>(value);

  useEffect(() => {
    // Update debounced value after delay
    const handler = setTimeout(() => {
      setDebouncedValue(value);
    }, delay);

    // Cancel the timeout if value changes (also on delay change or unmount)
    // This is how we prevent debounced value from updating if the value is changed
    // within the delay period. Timeout gets cleared and restarted.
    return () => {
      clearTimeout(handler);
    };
  }, [value, delay]);

  return debouncedValue;
};