"use client";
import { useEffect, useRef, useState } from "react";

export default function ScrollReveal({
  children,
  delay = 0,
}: {
  children: React.ReactNode;
  delay?: number;
}) {
  const ref = useRef<HTMLDivElement>(null);
  const [visible, setVisible] = useState(false);

  useEffect(() => {
    const el = ref.current;
    if (!el) return;
    const observer = new IntersectionObserver(
      ([entry]) => {
        if (entry.isIntersecting) {
          const timer = setTimeout(() => setVisible(true), delay);
          observer.unobserve(el);
          return () => clearTimeout(timer);
        }
      },
      { threshold: 0.12 }
    );
    observer.observe(el);
    return () => observer.disconnect();
  }, [delay]);

  return (
    <div
      ref={ref}
      className={`transition-all duration-700 ease-out ${
        visible ? "opacity-100 translate-y-0" : "opacity-0 translate-y-8"
      }`}
    >
      {children}
    </div>
  );
}