'use client';

import Link from 'next/link';
import Image from 'next/image';
import { ShoppingCart, GitCompare, Phone, Check } from 'lucide-react';
import { Product } from '@/content/products';
import { useCartStore } from '@/lib/cart-store';
import { useCompareStore } from '@/lib/compare-store';
import { useState } from 'react';

interface ProductCardProps {
  product: Product;
}

export function ProductCard({ product }: ProductCardProps) {
  const addItem = useCartStore((s) => s.addItem);
  const { addItem: addCompare, removeItem: removeCompare, isAdded, items: compareItems } = useCompareStore();
  const [added, setAdded] = useState(false);

  const handleAddToCart = (e: React.MouseEvent) => {
    e.preventDefault();
    if (!product.price) return;
    addItem({
      slug: product.slug,
      name: product.name,
      brand: product.brand,
      image: product.image,
      price: product.price,
    });
    setAdded(true);
    setTimeout(() => setAdded(false), 1500);
  };

  const handleCompare = (e: React.MouseEvent) => {
    e.preventDefault();
    if (isAdded(product.slug)) {
      removeCompare(product.slug);
    } else {
      addCompare({
        slug: product.slug,
        name: product.name,
        brand: product.brand,
        price: product.price,
        image: product.image,
        specs: product.specs,
      });
    }
  };

  const inCompare = isAdded(product.slug);
  const compareDisabled = compareItems.length >= 3 && !inCompare;

  return (
    <div className="group relative bg-white rounded-xl border border-border hover:border-accent hover:shadow-md transition-all duration-200 overflow-hidden flex flex-col">
      {/* Zdjęcie */}
      <Link href={`/sklep/${product.slug}`} className="block relative aspect-[4/3] bg-slate-50 overflow-hidden">
        <Image
          src={product.image}
          alt={product.name}
          fill
          sizes="(max-width: 640px) 100vw, (max-width: 1024px) 50vw, 33vw"
          className="object-contain p-6 group-hover:scale-105 transition-transform duration-300"
          unoptimized={product.image.startsWith('http')}
        />

        {/* Badge marka */}
        <span className="absolute top-2 left-2 px-2 py-1 bg-white/95 rounded-md text-xs font-semibold text-primary border border-border shadow-sm">
          {product.brand}
        </span>

        {/* Badge multisplit */}
        {product.category === 'multisplit' && (
          <span className="absolute top-2 right-2 px-2 py-1 bg-accent/10 rounded-md text-xs font-semibold text-accent border border-accent/20">
            Multisplit
          </span>
        )}

        {/* Porównywarka - pojawia się na hover */}
        <button
          onClick={handleCompare}
          disabled={compareDisabled}
          title={inCompare ? 'Usuń z porównywarki' : compareDisabled ? 'Max 3 produkty' : 'Dodaj do porównania'}
          className={`absolute bottom-2 right-2 p-1.5 rounded-lg border transition-all ${
            inCompare
              ? 'bg-accent text-white border-accent opacity-100'
              : 'bg-white/90 text-text-muted border-border opacity-0 group-hover:opacity-100 hover:border-accent hover:text-accent'
          } ${compareDisabled ? 'opacity-30 cursor-not-allowed' : ''}`}
        >
          <GitCompare className="size-3.5" />
        </button>
      </Link>

      {/* Treść */}
      <div className="p-4 flex flex-col flex-1 gap-2">
        <Link href={`/sklep/${product.slug}`}>
          <h3 className="text-sm font-semibold text-primary font-heading leading-snug line-clamp-2 hover:text-accent transition-colors">
            {product.name}
          </h3>
        </Link>

        {/* Kluczowe specs */}
        <div className="flex flex-wrap gap-1.5">
          {product.specs['Moc chłodnicza'] && (
            <span className="px-2 py-0.5 bg-slate-50 rounded text-xs text-text-muted border border-border">
              {product.specs['Moc chłodnicza']} kW
            </span>
          )}
          {product.specs['Klasa energetyczna'] && (
            <span className="px-2 py-0.5 bg-green-50 rounded text-xs text-green-700 border border-green-100 font-medium">
              {product.specs['Klasa energetyczna']}
            </span>
          )}
          {product.specs['Czynnik chłodniczy'] && (
            <span className="px-2 py-0.5 bg-slate-50 rounded text-xs text-text-muted border border-border">
              {product.specs['Czynnik chłodniczy']}
            </span>
          )}
        </div>

        {/* Cena + CTA */}
        <div className="mt-auto pt-2 flex items-end justify-between gap-2">
          {product.price !== null ? (
            <div>
              <p className="text-lg font-bold text-primary font-heading leading-none">
                {product.price.toLocaleString('pl-PL')} zł
              </p>
              <p className="text-xs text-text-muted mt-0.5">brutto</p>
            </div>
          ) : (
            <div className="flex items-center gap-1 text-accent">
              <Phone className="size-3.5" />
              <span className="text-sm font-semibold">Zapytaj o cenę</span>
            </div>
          )}

          {product.price !== null ? (
            <button
              onClick={handleAddToCart}
              className={`flex items-center gap-1.5 px-3 py-2 rounded-lg text-xs font-bold transition-all shrink-0 ${
                added
                  ? 'bg-green-500 text-white'
                  : 'bg-accent text-white hover:bg-accent/90'
              }`}
            >
              {added ? (
                <><Check className="size-3.5" /> Dodano</>
              ) : (
                <><ShoppingCart className="size-3.5" /> Do koszyka</>
              )}
            </button>
          ) : (
            <Link href="/kontakt">
              <button className="flex items-center gap-1.5 px-3 py-2 rounded-lg text-xs font-bold bg-primary text-white hover:bg-primary/90 transition-colors shrink-0">
                Zapytaj
              </button>
            </Link>
          )}
        </div>
      </div>
    </div>
  );
}