"use client";

import { useState } from "react";
import { Star, ChevronLeft, Check } from "lucide-react";
import { Button } from "@/components/ui/button";
import { useLanguage } from "@/contexts/LanguageContext";
import { useCart } from "@/contexts/CartContext";
import { products } from "@/data/products";
import ProductCard from "@/components/ProductCard";
import Link from "next/link";
import { useParams } from "next/navigation";
import { toast } from "sonner";

export default function ProductDetail() {
  const { id } = useParams();
  const { t } = useLanguage();
  const { addItem } = useCart();
  const product = products.find((p) => p.id === id);

  const [selectedImage, setSelectedImage] = useState(0);
  const [selectedColor, setSelectedColor] = useState("");
  const [selectedLength, setSelectedLength] = useState("");

  if (!product) {
    return (
      <div className="min-h-screen flex items-center justify-center">
        <p className="text-muted-foreground">Produit non trouvé</p>
      </div>
    );
  }

  const similar = products.filter((p) => p.category === product.category && p.id !== product.id).slice(0, 4);

  const handleAddToCart = () => {
    const color = selectedColor || product.colors[0];
    const length = selectedLength || product.lengths[0];
    addItem(product, color, length);
    toast.success(`Ajouté au panier - ${product.name} - ${color}, ${length}`);
  };

  return (
    <div className="min-h-screen py-6 lg:py-12">
      <div className="container mx-auto px-4 lg:px-8">
        <Link href="/boutique" className="inline-flex items-center gap-1 text-sm text-muted-foreground hover:text-foreground mb-6">
          <ChevronLeft className="h-4 w-4" /> {t("nav.shop")}
        </Link>

        <div className="grid grid-cols-1 lg:grid-cols-2 gap-8 lg:gap-16">
          {/* Images */}
          <div className="space-y-3">
            <div className="aspect-[3/4] rounded-lg overflow-hidden bg-muted">
              <img src={product.images[selectedImage]} alt={product.name} className="w-full h-full object-cover" />
            </div>
            {product.images.length > 1 && (
              <div className="flex gap-2">
                {product.images.map((img, i) => (
                  <button
                    key={i}
                    onClick={() => setSelectedImage(i)}
                    className={`w-16 h-20 rounded-md overflow-hidden border-2 transition-colors ${
                      i === selectedImage ? "border-primary" : "border-transparent"
                    }`}
                  >
                    <img src={img} alt="" className="w-full h-full object-cover" />
                  </button>
                ))}
              </div>
            )}
          </div>

          {/* Details */}
          <div className="space-y-6">
            <div>
              <h1 className="font-serif text-2xl lg:text-4xl font-semibold mb-2">{product.name}</h1>
              <div className="flex items-center gap-2 mb-4">
                <div className="flex gap-0.5">
                  {Array.from({ length: 5 }).map((_, i) => (
                    <Star key={i} className={`h-4 w-4 ${i < Math.floor(product.rating) ? "fill-primary text-primary" : "text-muted"}`} />
                  ))}
                </div>
                <span className="text-sm text-muted-foreground">({product.reviewCount} avis)</span>
              </div>
              <div className="flex items-baseline gap-3">
                <span className="text-2xl font-semibold">{product.price} €</span>
                {product.originalPrice && (
                  <span className="text-lg text-muted-foreground line-through">{product.originalPrice} €</span>
                )}
              </div>
            </div>

            <p className="text-muted-foreground leading-relaxed">{product.description}</p>

            {/* Color selector */}
            <div>
              <h3 className="text-sm font-medium mb-2">{t("product.color")}</h3>
              <div className="flex flex-wrap gap-2">
                {product.colors.map((color) => (
                  <button
                    key={color}
                    onClick={() => setSelectedColor(color)}
                    className={`px-3 py-1.5 rounded-full text-sm border transition-colors cursor-pointer ${
                      (selectedColor || product.colors[0]) === color
                        ? "border-primary bg-accent text-accent-foreground"
                        : "border-border text-muted-foreground hover:border-primary"
                    }`}
                  >
                    {color}
                  </button>
                ))}
              </div>
            </div>

            {/* Length selector */}
            <div>
              <h3 className="text-sm font-medium mb-2">{t("product.length")}</h3>
              <div className="flex gap-2">
                {product.lengths.map((length) => (
                  <button
                    key={length}
                    onClick={() => setSelectedLength(length)}
                    className={`px-4 py-2 rounded-md text-sm border transition-colors cursor-pointer ${
                      (selectedLength || product.lengths[0]) === length
                        ? "border-primary bg-accent text-accent-foreground"
                        : "border-border text-muted-foreground hover:border-primary"
                    }`}
                  >
                    {length}
                  </button>
                ))}
              </div>
            </div>

            <Button size="lg" className="w-full text-sm tracking-wide" onClick={handleAddToCart}>
              {t("cart.add")}
            </Button>

            {/* Features */}
            <div>
              <h3 className="text-sm font-medium mb-3">{t("product.features")}</h3>
              <ul className="space-y-2">
                {product.features.map((feature) => (
                  <li key={feature} className="flex items-center gap-2 text-sm text-muted-foreground">
                    <Check className="h-4 w-4 text-primary" />
                    {feature}
                  </li>
                ))}
              </ul>
            </div>
          </div>
        </div>

        {/* Similar */}
        {similar.length > 0 && (
          <section className="mt-16 lg:mt-24">
            <h2 className="font-serif text-2xl mb-8">{t("product.similar")}</h2>
            <div className="grid grid-cols-2 lg:grid-cols-4 gap-4 lg:gap-6">
              {similar.map((p) => (
                <ProductCard key={p.id} product={p} />
              ))}
            </div>
          </section>
        )}
      </div>
    </div>
  );
};