import { useState, useEffect, useCallback } from 'react';
import { ChevronLeft, ChevronRight } from 'lucide-react';

const heroImages = [
  'https://images.unsplash.com/photo-1556742393-d75f468bfcb0?q=80&w=2070&auto=format&fit=crop',
  'https://images.unsplash.com/photo-1552566626-52f8b828add9?q=80&w=2070&auto=format&fit=crop',
  'https://plus.unsplash.com/premium_photo-1674106347866-8282d8c19f84?q=80&w=2070&auto=format&fit=crop'
];

function Hero() {
  const [currentIndex, setCurrentIndex] = useState(0);

  const nextSlide = useCallback(() => {
    setCurrentIndex((prevIndex) => (prevIndex + 1) % heroImages.length);
  }, []);

  const prevSlide = () => {
    setCurrentIndex((prevIndex) => (prevIndex - 1 + heroImages.length) % heroImages.length);
  };

  useEffect(() => {
    const timer = setInterval(() => {
      nextSlide();
    }, 5000);

    return () => clearInterval(timer);
  }, [nextSlide]);

  return (
    <section className="relative h-screen w-full overflow-hidden">
      {heroImages.map((src, index) => (
        <div
          key={index}
          className={`absolute inset-0 h-full w-full bg-cover bg-center transition-opacity duration-1000 ease-in-out ${index === currentIndex ? 'opacity-100' : 'opacity-0'
            }`}
          style={{ backgroundImage: `url('${src}')` }}
        >
          {index === currentIndex && (
            <div className="h-full w-full animate-zoom" />
          )}
        </div>
      ))}

      <div className="absolute inset-0 bg-black/60" />

      <div className="absolute inset-0 z-10 flex flex-col items-center justify-center text-center text-white">
        <h1 className="mb-4 text-6xl font-bold tracking-tight">
          Magyarország szíve, tálalva egy tányéron
        </h1>
        <p className="mb-8 max-w-2xl text-xl text-slate-300">
          Éld át a hagyományos magyar konyha gazdag, autentikus ízeit egy modern, elegáns környezetben.
        </p>
        <a href="#foglalas" className="rounded-md bg-amber-500 px-8 py-3 text-lg font-semibold text-slate-900 transition hover:bg-amber-400">
          Asztalfoglalás
        </a>
      </div>

      <div className="absolute inset-0 z-10">
        <button
          onClick={prevSlide}
          className="absolute left-4 top-1/2 -translate-y-1/2 rounded-full bg-black/30 p-2 text-white transition hover:bg-black/50"
          aria-label="Előző dia"
        >
          <ChevronLeft size={32} />
        </button>
        <button
          onClick={nextSlide}
          className="absolute right-4 top-1/2 -translate-y-1/2 rounded-full bg-black/30 p-2 text-white transition hover:bg-black/50"
          aria-label="Következő dia"
        >
          <ChevronRight size={32} />
        </button>
      </div>

      <div className="absolute bottom-8 left-1/2 z-10 flex -translate-x-1/2 space-x-3">
        {heroImages.map((_, index) => (
          <button
            key={index}
            onClick={() => setCurrentIndex(index)}
            className={`h-3 w-3 rounded-full transition-colors ${currentIndex === index ? 'bg-amber-400' : 'bg-white/50 hover:bg-white/75'
              }`}
            aria-label={`Ugrás a(z) ${index + 1}. diára`}
          />
        ))}
      </div>
    </section>
  );
}

export default Hero;
