"use client";

import { AnimatePresence, motion } from "framer-motion";
import Image from "next/image";
import { useCallback, useEffect, useState } from "react";

// Mapping des textes associés à chaque visuel
const ADS_COPY: Record<string, { title: string; subtitle: string }> = {
  "riseofkinkdom.jpeg": {
    title: "Atteignez 50 Millions d’Impuissance !",
    subtitle: "Rejoignez « Rise of Kink Doms » et dominez vos adversaires.",
  },
  "voat.png": {
    title: "Aymeric Pierre vend votre voiture !",
    subtitle: "Offre exclusive : 69,42 BTC, garantie World PvP Champion.",
  },
};

export default function AdsGalleryClient({ files }: { files: string[] }) {
  // \u2714️ État qui détermine l'image agrandie actuellement affichée
  const [selected, setSelected] = useState<string | null>(null);

  /**
   * Gestion du clavier : ␛ pour fermer la light-box
   * On utilise le « KeyboardEvent » natif du DOM, plus compatible
   */
  const handleKey = useCallback((e: KeyboardEvent) => {
    if (e.key === "Escape") setSelected(null);
  }, []);

  useEffect(() => {
    if (!selected) return; // rien à faire si aucune image n'est ouverte

    // ➜ attache l'écouteur
    window.addEventListener("keydown", handleKey);
    document.body.style.overflow = "hidden"; // bloque le scroll arrière-plan

    // ➜ cleanup à la fermeture / unmount
    return () => {
      window.removeEventListener("keydown", handleKey);
      document.body.style.overflow = "";
    };
  }, [selected, handleKey]);

  return (
    <main className="flex min-h-screen flex-col bg-[#0e0e10]">
      <section className="mx-auto w-full max-w-6xl flex-1 px-4 py-12">
        {/* Titre */}
        <motion.h1
          initial={{ opacity: 0, y: 10 }}
          animate={{ opacity: 1, y: 0 }}
          transition={{ duration: 0.4, ease: "easeOut" }}
          className="mb-10 text-3xl font-extrabold text-red-600"
        >
          Galerie des publicités
        </motion.h1>

        {/* Message si aucun fichier */}
        {files.length === 0 ? (
          <motion.p
            initial={{ opacity: 0 }}
            animate={{ opacity: 1 }}
            transition={{ delay: 0.2 }}
            className="text-gray-400"
          >
            Aucune bannière trouvée dans <code className="text-sm">/public/ads</code>.
          </motion.p>
        ) : (
          <motion.ul
            initial="hidden"
            animate="visible"
            variants={{
              hidden: {},
              visible: { transition: { staggerChildren: 0.1 } },
            }}
            className="grid gap-6 sm:grid-cols-2 lg:grid-cols-3"
          >
            {files.map((file) => {
              const copy = ADS_COPY[file];
              return (
                <motion.li
                  key={file}
                  variants={{ hidden: { opacity: 0, y: 20 }, visible: { opacity: 1, y: 0 } }}
                  className="cursor-pointer overflow-hidden rounded-xl border border-[#1c2536] bg-[#0b1320] shadow"
                  onClick={() => setSelected(file)}
                >
                  {/* Vignette */}
                  <div className="relative h-42 w-full">
                    <Image
                      src={`/ads/${file}`}
                      alt={file}
                      fill
                      className="object-cover transition-transform duration-200 hover:scale-105"
                      sizes="(min-width:1024px) 33vw, (min-width:640px) 50vw, 100vw"
                      priority
                    />
                  </div>

                  {/* Texte associé */}
                  {copy && (
                    <div className="px-4 py-3 text-center">
                      <h2 className="text-[15px] font-bold leading-snug text-amber-100">
                        {copy.title.split(/(50 Millions)/).map((part, i) =>
                          part === "50 Millions" ? (
                            <span key={i} className="text-red-500">
                              {part}
                            </span>
                          ) : (
                            part
                          )
                        )}
                      </h2>
                      <p className="mt-1 text-sm text-gray-300">{copy.subtitle}</p>
                    </div>
                  )}

                  {/* Nom de fichier */}
                  <p className="truncate bg-[#0b1320] px-3 py-2 text-center text-xs text-gray-500">
                    {file}
                  </p>
                </motion.li>
              );
            })}
          </motion.ul>
        )}
      </section>

      {/* ---- Light-box plein écran ---- */}
      <AnimatePresence>
        {selected && (
          <motion.div
            key="overlay"
            initial={{ opacity: 0 }}
            animate={{ opacity: 1 }}
            exit={{ opacity: 0 }}
            transition={{ duration: 0.25 }}
            className="fixed inset-0 z-50 flex items-center justify-center bg-black/80 backdrop-blur-md"
            onClick={(e) => {
              // Ferme si on clique en dehors de l'image
              if (e.target === e.currentTarget) setSelected(null);
            }}
          >
            <motion.div
              initial={{ scale: 0.9, opacity: 0 }}
              animate={{ scale: 1, opacity: 1 }}
              exit={{ scale: 0.9, opacity: 0 }}
              className="relative max-h-[90vh] max-w-[90vw]"
            >
              <Image
                src={`/ads/${selected}`}
                alt={selected}
                width={1200}
                height={800}
                className="h-auto w-auto rounded-lg shadow-xl"
                priority
              />
              {/* Bouton de fermeture */}
              <button
                aria-label="Fermer"
                className="absolute right-2 top-2 rounded-full bg-black/60 p-1 text-white hover:bg-black/80 focus:outline-none"
                onClick={() => setSelected(null)}
              >
                ✕
              </button>
            </motion.div>
          </motion.div>
        )}
      </AnimatePresence>
    </main>
  );
}