"use client";

import { useState, useEffect, useCallback, useRef, RefObject } from "react";

export function useIdle(
  timeoutMs: number,
  videoRef: RefObject<HTMLVideoElement | null>,
  onIdle?: () => void,
) {
  const [showOverlays, setShowOverlays] = useState(true);
  const [needsInteraction, setNeedsInteraction] = useState(false);
  const idleTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
  // Keep onIdle in a ref so resetIdle doesn't need it as a dep
  const onIdleRef = useRef(onIdle);
  useEffect(() => {
    onIdleRef.current = onIdle;
  });

  const resetIdle = useCallback(() => {
    setShowOverlays(true);
    setNeedsInteraction(false);
    if (idleTimer.current) clearTimeout(idleTimer.current);
    idleTimer.current = setTimeout(() => {
      setShowOverlays(false);
      onIdleRef.current?.();
    }, timeoutMs);
    videoRef.current?.play().catch(() => {});
  }, [timeoutMs, videoRef]);

  // Start the idle timer on mount without calling setState
  // (default state values already set by useState above)
  useEffect(() => {
    idleTimer.current = setTimeout(() => {
      setShowOverlays(false);
      onIdleRef.current?.();
    }, timeoutMs);
    return () => {
      if (idleTimer.current) clearTimeout(idleTimer.current);
    };
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, []);

  return { showOverlays, needsInteraction, setNeedsInteraction, resetIdle };
}