"use client";

import Image from "next/image";
import Link from "next/link";
import { useEffect, useState } from "react";
import { heroSides, heroSlides } from "@/lib/data";

const overlayStyle = {
  background:
    "linear-gradient(to left, rgba(0,0,0,0.88) 0%, rgba(0,0,0,0.72) 42%, rgba(0,0,0,0.28) 72%, transparent 100%)",
};

export function HeroSlider() {
  const [index, setIndex] = useState(0);
  const [paused, setPaused] = useState(false);

  useEffect(() => {
    if (paused) return;
    const id = window.setInterval(() => {
      setIndex((current) => (current + 1) % heroSlides.length);
    }, 5000);
    return () => window.clearInterval(id);
  }, [paused]);

  return (
    <section className="container-site pt-5">
      <div
        className="relative overflow-hidden rounded-2xl aspect-[21/8] min-h-[240px] md:min-h-[360px]"
        onMouseEnter={() => setPaused(true)}
        onMouseLeave={() => setPaused(false)}
      >
        {heroSlides.map((slide, i) => (
          <div
            key={slide.title}
            aria-hidden={i !== index}
            className={`absolute inset-0 transition-opacity duration-700 ease-in-out ${
              i === index ? "opacity-100 z-[1]" : "opacity-0 z-0 pointer-events-none"
            }`}
          >
            <Image
              src={slide.image}
              alt=""
              fill
              sizes="1200px"
              priority={i === 0}
              className="object-cover object-[28%_center]"
            />
          </div>
        ))}

        <div className="pointer-events-none absolute inset-y-0 right-0 z-[2] w-[58%] md:w-[46%]" style={overlayStyle} />

        {heroSlides.map((slide, i) => (
          <div
            key={`${slide.title}-copy`}
            className={`absolute z-[3] right-6 md:right-12 top-1/2 -translate-y-1/2 max-w-[230px] sm:max-w-sm text-white text-right transition-opacity duration-700 ${
              i === index ? "opacity-100" : "opacity-0 pointer-events-none"
            }`}
          >
            <p className="text-2xl sm:text-3xl md:text-4xl font-extrabold leading-none">{slide.title}</p>
            <p dir="ltr" className="mt-0.5 font-carter text-[10px] sm:text-xs md:text-sm tracking-[0.42em] text-brand uppercase">
              {slide.english}
            </p>
            <p className="mt-1 text-lg sm:text-xl md:text-2xl font-medium leading-tight text-white/90">{slide.subtitle}</p>
            <Link
              href={slide.href}
              className="mt-5 inline-flex items-center justify-center rounded-lg bg-brand px-5 py-2.5 text-sm sm:text-base font-bold text-white hover:bg-[#e01e1e]"
            >
              {slide.button}
            </Link>
          </div>
        ))}

        <div className="absolute bottom-4 left-1/2 z-[4] -translate-x-1/2 flex gap-2">
          {heroSlides.map((slide, i) => (
            <button
              key={slide.title}
              type="button"
              aria-label={`اسلاید ${i + 1}`}
              onClick={() => setIndex(i)}
              className={`h-2.5 rounded-full transition-all ${i === index ? "w-7 bg-brand" : "w-2.5 bg-white/80"}`}
            />
          ))}
        </div>
      </div>

      <div className="mt-4 grid grid-cols-1 sm:grid-cols-2 gap-4">
        {heroSides.map((side) => (
          <Link key={side.title} href={side.href} className="relative block overflow-hidden rounded-2xl">
            <div className="relative aspect-[21/8] sm:aspect-[2.6/1]">
              <Image src={side.image} alt="" fill sizes="600px" className="object-cover object-[28%_center]" />
            </div>
            <div className="pointer-events-none absolute inset-y-0 right-0 w-[62%] md:w-[52%]" style={overlayStyle} />
            <div className="absolute right-4 md:right-6 top-1/2 -translate-y-1/2 max-w-[180px] md:max-w-[220px] text-white text-right">
              <p className="text-base md:text-xl font-extrabold leading-none">{side.title}</p>
              <p dir="ltr" className="mt-0.5 font-carter text-[9px] md:text-[10px] tracking-[0.4em] text-brand uppercase">
                {side.english}
              </p>
              <p className="mt-0.5 text-sm md:text-base leading-tight text-white/90">{side.subtitle}</p>
            </div>
          </Link>
        ))}
      </div>
    </section>
  );
}