// Userland polyfill while we wait for the forthcoming
// https://github.com/reactjs/rfcs/blob/useevent/text/0000-useevent.md
// Note: "A high-fidelity polyfill for useEvent is not possible because
// there is no lifecycle or Hook in React that we can use to switch
// .current at the right timing."
// So we will have to make do with this "close enough" approach for now.
import { useInsertionEffect, useRef } from "react";

export const useEvent = <Fn>(fn: Fn | ((...args: any[]) => any) | undefined): Fn => {
   const ref = useRef([fn, (...args) => ref[0](...args)]).current;
   // Per Dan Abramov: useInsertionEffect executes marginally closer to the
   // correct timing for ref synchronization than useLayoutEffect on React 18.
   // See: https://github.com/facebook/react/pull/25881#issuecomment-1356244360
   useInsertionEffect(() => {
      ref[0] = fn;
   });
   return ref[1];
};