"use client";

import { useMemo, useState } from "react";
import Image from "next/image";
import Link from "next/link";
import { useCart } from "@/contexts/CartContext";
import { ProductSocialBlock } from "@/components/shop/ProductSocialBlock";
import { SHOP_PRODUCTS, type ShopProduct } from "@/lib/shopCatalog";
import { getProductSocialMetrics } from "@/lib/shopProductSocial";

interface ProductCardProps {
  id: string;
  name: string;
  description: string;
  price: number;
  currency: "BTC" | "ETH" | "USD" | "XMR";
  category: string;
  imageUrl: string;
  sellerHandle: string;
  sellerSlug: string;
  limited?: boolean;
  glowColor?: string;
  /** When set, add-to-cart uses this row; otherwise looks up by `id` in SHOP_PRODUCTS */
  shopProduct?: ShopProduct;
}

const ProductCard = ({
  id,
  name,
  description,
  price,
  currency,
  category,
  imageUrl,
  sellerHandle,
  sellerSlug,
  limited = false,
  glowColor: _glow = "neon-cyan",
  shopProduct,
}: ProductCardProps) => {
  void _glow;
  const [isHovered, setIsHovered] = useState(false);
  const [isFavorite, setIsFavorite] = useState(false);
  const [justAdded, setJustAdded] = useState(false);
  const { addToCart, hydrated: cartReady } = useCart();

  const metrics = useMemo(() => getProductSocialMetrics(id), [id]);

  const currencySymbols = {
    BTC: "₿",
    ETH: "Ξ",
    USD: "$",
    XMR: "⏣",
  };

  const formatPrice = (p: number) => {
    if (currency === "BTC") return p.toFixed(6);
    if (currency === "ETH") return p.toFixed(4);
    if (currency === "XMR") return p.toFixed(3);
    return p.toFixed(2);
  };

  const resolveProduct = (): ShopProduct | undefined => shopProduct ?? SHOP_PRODUCTS.find((x) => x.id === id);

  const handleAddToCart = () => {
    const p = resolveProduct();
    if (!p) return;
    addToCart(p, 1);
    setJustAdded(true);
    window.setTimeout(() => setJustAdded(false), 1800);
  };

  return (
    <div
      className="group relative overflow-hidden rounded-2xl border border-white/10 transition-all duration-500 hover:scale-[1.02] hover:shadow-2xl hover:shadow-neon-cyan/10"
      onMouseEnter={() => setIsHovered(true)}
      onMouseLeave={() => setIsHovered(false)}
    >
      <div
        className={`absolute -inset-1 -z-10 rounded-2xl opacity-0 blur-xl transition-opacity duration-500 ${
          isHovered ? "bg-neon-cyan/30 opacity-20" : ""
        }`}
      />

      {limited && (
        <div className="absolute left-4 top-4 z-10">
          <div className="relative">
            <div className="animate-glow rounded-full bg-gradient-to-r from-neon-pink to-neon-purple px-3 py-1 text-xs font-bold text-background">
              LIMITED
            </div>
            <div className="absolute -inset-1 -z-10 animate-pulse rounded-full bg-neon-pink blur-md opacity-30"></div>
          </div>
        </div>
      )}

      <button
        type="button"
        className="absolute right-4 top-4 z-10 glass rounded-full p-2"
        onClick={() => setIsFavorite(!isFavorite)}
        aria-label={isFavorite ? "Remove from favorites" : "Add to favorites"}
      >
        <span className={`text-lg ${isFavorite ? "text-neon-pink" : "text-foreground/60"}`}>
          {isFavorite ? "❤️" : "🤍"}
        </span>
      </button>

      <div className="relative aspect-square overflow-hidden">
        <Image
          src={imageUrl}
          alt={name}
          fill
          className="object-cover transition-transform duration-700 group-hover:scale-110"
          sizes="(max-width: 768px) 100vw, (max-width: 1200px) 50vw, 33vw"
          unoptimized={imageUrl.startsWith("/")}
        />
        <div className="absolute inset-0 bg-gradient-to-t from-background/80 via-transparent to-transparent opacity-0 transition-opacity group-hover:opacity-100" />
      </div>

      <div className="glass border-t border-white/10 p-6 backdrop-blur-sm">
        <div className="mb-3">
          <ProductSocialBlock metrics={metrics} compact />
        </div>

        <div className="mb-2 flex items-center justify-between gap-2">
          <span className="rounded-full bg-white/5 px-3 py-1 text-xs font-medium text-neon-cyan">{category}</span>
          <div className="flex flex-shrink-0 items-center gap-1">
            <span className="font-orbitron text-xl font-bold text-foreground md:text-2xl">
              {currencySymbols[currency]}
              {formatPrice(price)}
            </span>
            <span className="text-sm text-foreground/50">{currency}</span>
          </div>
        </div>
        <h3 className="mb-2 font-orbitron text-xl font-bold">{name}</h3>
        <p className="mb-1 text-xs text-foreground/50">
          Seller:{" "}
          <Link href={`/vendor/${sellerSlug}`} className="text-neon-cyan hover:text-neon-purple hover:underline">
            {sellerHandle}
          </Link>
        </p>
        <p className="mb-4 line-clamp-3 text-sm text-foreground/70">{description}</p>

        <div className="mb-4 space-y-2 border-t border-white/10 pt-4">
          <p className="font-mono text-[9px] font-bold uppercase tracking-widest text-foreground/35">Verified chatter</p>
          {metrics.testimonials.slice(0, 1).map((t, i) => (
            <p key={i} className="text-xs italic leading-relaxed text-foreground/55">
              “{t.text}”
              <span className="mt-1 block font-mono text-[10px] not-italic text-neon-cyan/70">
                — @{t.handle} · ★{t.rating} · {t.daysAgo}d ago
              </span>
            </p>
          ))}
        </div>

        <div className="flex items-center gap-3">
          <button
            type="button"
            onClick={handleAddToCart}
            disabled={!cartReady || !resolveProduct()}
            className="flex-1 rounded-full bg-gradient-to-r from-neon-cyan to-neon-purple py-3 text-sm font-bold text-background transition-transform enabled:hover:scale-[1.02] disabled:opacity-50"
          >
            {justAdded ? "ADDED ✓" : "ADD TO CART"}
          </button>
          <Link
            href="/checkout"
            className="glass flex items-center justify-center rounded-full p-3 transition-colors hover:bg-white/10"
            title="Checkout"
          >
            <span className="text-lg">🛒</span>
          </Link>
        </div>

        <div className="mt-4 flex items-center justify-between text-xs text-foreground/50">
          <div className="flex items-center gap-2">
            <div className="h-2 w-2 rounded-full bg-neon-green"></div>
            <span>In stock · Ships discreetly</span>
          </div>
          <div className="flex items-center gap-1">
            <span>🔐</span>
            <span>Encrypted</span>
          </div>
        </div>
      </div>
    </div>
  );
};

export default ProductCard;