"use client";

import { useTranslations } from 'next-intl';
import { motion, AnimatePresence } from 'framer-motion';
import { Instagram } from '@/components/InstagramIcon';
import { useState, useEffect } from 'react';
import { X, ChevronLeft, ChevronRight } from 'lucide-react';

export default function Gallery({ dbGallery = [] }: { dbGallery?: any[] }) {
  const t = useTranslations('Gallery');

  // Fallback to placeholder images if database is empty
  const images = dbGallery.length > 0 ? dbGallery : Array.from({ length: 12 }).map((_, i) => ({
    id: `fallback-${i}`,
    src: `https://picsum.photos/600/${400 + (i % 5) * 50}?random=${30 + i}`,
    alt: `Gallery ${i + 1}`,
  }));

  const [selectedIndex, setSelectedIndex] = useState<number | null>(null);

  // Close lightbox on escape key
  useEffect(() => {
    const handleKeyDown = (e: KeyboardEvent) => {
      if (e.key === 'Escape') setSelectedIndex(null);
      if (e.key === 'ArrowRight' && selectedIndex !== null) {
        setSelectedIndex((prev) => (prev !== null ? (prev + 1) % images.length : null));
      }
      if (e.key === 'ArrowLeft' && selectedIndex !== null) {
        setSelectedIndex((prev) => (prev !== null ? (prev - 1 + images.length) % images.length : null));
      }
    };
    window.addEventListener('keydown', handleKeyDown);
    return () => window.removeEventListener('keydown', handleKeyDown);
  }, [selectedIndex, images.length]);

  return (
    <section id="gallery" className="py-24 bg-white text-midnight">
      <div className="container mx-auto px-6 lg:px-12">

        {/* Header */}
        <div className="flex flex-col md:flex-row justify-between items-end mb-10">
          <motion.div
            initial={{ opacity: 0, x: -20 }}
            whileInView={{ opacity: 1, x: 0 }}
            viewport={{ once: true }}
          >
            <span className="text-xs tracking-[0.4em] uppercase font-black text-coral mb-3 block">
              — Fotoğraflar
            </span>
            <h2 className="font-heading text-5xl md:text-6xl font-black text-midnight">
              {t('title')}
            </h2>
          </motion.div>

          <motion.a
            initial={{ opacity: 0, x: 20 }}
            whileInView={{ opacity: 1, x: 0 }}
            viewport={{ once: true }}
            href="https://www.instagram.com/kozmosbeach/"
            target="_blank"
            rel="noopener noreferrer"
            className="flex items-center gap-2 px-5 py-2.5 rounded-full border border-coral/30 text-coral font-bold text-sm hover:bg-coral hover:text-white transition-all"
          >
            <Instagram size={15} />
            {t('follow_instagram')}
          </motion.a>
        </div>

        {/* Masonry grid */}
        <div className="columns-1 sm:columns-2 md:columns-3 lg:columns-4 gap-3 space-y-3">
          {images.map((img, index) => (
            <motion.div
              key={img.id}
              initial={{ opacity: 0, y: 20 }}
              whileInView={{ opacity: 1, y: 0 }}
              viewport={{ once: true }}
              transition={{ delay: (index % 4) * 0.07 }}
              onClick={() => setSelectedIndex(index)}
              className="relative rounded-2xl overflow-hidden group break-inside-avoid cursor-pointer"
            >
              <img
                src={img.src}
                alt={img.alt}
                className="w-full h-auto object-cover transition-transform duration-700 group-hover:scale-105"
                loading="lazy"
              />
              {/* Coral gradient overlay */}
              <div
                className="absolute inset-0 opacity-0 group-hover:opacity-100 transition-opacity duration-300"
                style={{
                  background:
                    'linear-gradient(135deg, rgba(255,90,54,0.55), rgba(0,191,165,0.4))',
                }}
              />
              {/* Plus icon */}
              <div className="absolute inset-0 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-opacity duration-300">
                <span className="text-white text-4xl font-thin select-none">+</span>
              </div>
            </motion.div>
          ))}
        </div>
      </div>

      {/* Lightbox Overlay */}
      <AnimatePresence>
        {selectedIndex !== null && (
          <motion.div
            initial={{ opacity: 0 }}
            animate={{ opacity: 1 }}
            exit={{ opacity: 0 }}
            className="fixed inset-0 z-[100] flex items-center justify-center bg-midnight/95 backdrop-blur-md"
          >
            {/* Close Button */}
            <button
              onClick={() => setSelectedIndex(null)}
              className="absolute top-6 right-6 z-[110] text-white/70 hover:text-white transition-colors"
            >
              <X size={36} />
            </button>

            {/* Left/Right Navigation */}
            <button
              onClick={(e) => {
                e.stopPropagation();
                setSelectedIndex((selectedIndex - 1 + images.length) % images.length);
              }}
              className="absolute left-4 md:left-10 z-[110] p-3 rounded-full bg-white/10 text-white hover:bg-white/20 transition-all"
            >
              <ChevronLeft size={30} />
            </button>

            <button
              onClick={(e) => {
                e.stopPropagation();
                setSelectedIndex((selectedIndex + 1) % images.length);
              }}
              className="absolute right-4 md:right-10 z-[110] p-3 rounded-full bg-white/10 text-white hover:bg-white/20 transition-all"
            >
              <ChevronRight size={30} />
            </button>

            {/* Image */}
            <motion.div
              key={selectedIndex}
              initial={{ opacity: 0, scale: 0.9 }}
              animate={{ opacity: 1, scale: 1 }}
              exit={{ opacity: 0, scale: 0.9 }}
              transition={{ type: "spring", damping: 25, stiffness: 300 }}
              className="relative max-w-5xl w-full h-[80vh] px-4 md:px-24"
              onClick={(e) => e.stopPropagation()}
            >
              <img
                src={images[selectedIndex].src}
                alt={images[selectedIndex].alt}
                className="w-full h-full object-contain drop-shadow-2xl"
              />
            </motion.div>
          </motion.div>
        )}
      </AnimatePresence>
    </section>
  );
}