import { useRef, useState, useEffect, useLayoutEffect } from "react";

export const useDimensions = () => {
  const ref = useRef<HTMLHeadingElement>(null);
  const [dimensions, setDimensions] = useState({});
  useLayoutEffect(() => {
    setDimensions(ref.current.getBoundingClientRect().toJSON());
  }, [ref.current]);

  return [ref, dimensions];
};

export const isNumber = (value: string | number): boolean => {
  return value != null && value !== "" && !isNaN(Number(value.toString()));
};

// Hook
export const useKeyPress = (targetKey) => {
  // State for keeping track of whether key is pressed
  const [keyPressed, setKeyPressed] = useState(false);

  // If pressed key is our target key then set to true
  function downHandler({ key }) {
    // console.log(key);
    if (key === targetKey) {
      setKeyPressed(true);
    }
  }

  // If released key is our target key then set to false
  const upHandler = ({ key }) => {
    if (key === targetKey) {
      setKeyPressed(false);
    }
  };

  // Add event listeners
  useEffect(() => {
    window.addEventListener("keydown", downHandler);
    window.addEventListener("keyup", upHandler);
    // Remove event listeners on cleanup
    return () => {
      window.removeEventListener("keydown", downHandler);
      window.removeEventListener("keyup", upHandler);
    };
  }, []); // Empty array ensures that effect is only run on mount and unmount

  return keyPressed;
};