"use client";

import { motion } from "framer-motion";
import Image from "next/image";
import { useState } from "react";
import { useSaleorCheckoutStore } from "@/stores/saleorCheckoutStore";
import { useAnalytics } from "@/lib/analytics";
import type { Product } from "@/types/saleor";
import { getProductPrice, getProductImage, getLocalizedProduct } from "@/lib/saleor";
import { isValidLocale, getSaleorLocale } from "@/lib/i18n/locales";
import { useTranslations } from "next-intl";
import Link from "next/link";

interface ProductsGridProps {
  products: Product[];
  locale: string;
}

function ProductCardWithAddToCart({ product, index, locale }: { product: Product; index: number; locale: string }) {
  const t = useTranslations("ProductCard");
  const tProduct = useTranslations("Product");
  const [isAdding, setIsAdding] = useState(false);
  const { addLine, openCart, setLanguageCode } = useSaleorCheckoutStore();
  const { trackAddToCart } = useAnalytics();
  
  const image = getProductImage(product);
  const price = getProductPrice(product);
  const saleorLocale = isValidLocale(locale) ? getSaleorLocale(locale) : "SR";
  const localized = getLocalizedProduct(product, saleorLocale);
  const variant = product.variants?.[0];
  const isAvailable = (variant?.quantityAvailable || 0) > 0;
  const productHref = locale === "sr" ? `/products/${localized.slug}` : `/${locale}/products/${localized.slug}`;

  const handleAddToCart = async (e: React.MouseEvent) => {
    e.preventDefault();
    e.stopPropagation();
    
    if (!variant?.id) return;

    if (isValidLocale(locale)) {
      setLanguageCode(locale);
    }

    setIsAdding(true);
    try {
      await addLine(variant.id, 1);
      
      const priceAmount = variant?.pricing?.price?.gross?.amount || 0;
      const currency = variant?.pricing?.price?.gross?.currency || "RSD";
      
      trackAddToCart({
        id: product.id,
        name: localized.name,
        price: priceAmount,
        currency,
        quantity: 1,
        variant: variant.name,
      });
      
      openCart();
    } finally {
      setIsAdding(false);
    }
  };

  return (
    <motion.div
      initial={{ opacity: 0, y: 20 }}
      whileInView={{ opacity: 1, y: 0 }}
      viewport={{ once: true }}
      transition={{ duration: 0.5, delay: index * 0.1 }}
      className="group"
    >
      <Link href={productHref} className="block">
        <div className="relative w-full aspect-square bg-[#f8f9fa] overflow-hidden mb-4">
          {image ? (
            <Image
              src={image}
              alt={localized.name}
              fill
              className="object-cover object-center transition-transform duration-700 ease-out group-hover:scale-105"
              sizes="(max-width: 640px) 100vw, (max-width: 1024px) 50vw, 25vw"
              loading={index < 4 ? "eager" : "lazy"}
            />
          ) : (
            <div className="absolute inset-0 flex items-center justify-center text-[#999999]">
              <span className="text-sm">{t("noImage")}</span>
            </div>
          )}

          {!isAvailable && (
            <div className="absolute inset-0 bg-white/80 flex items-center justify-center">
              <span className="text-sm uppercase tracking-[0.1em] text-[#666666]">
                {t("outOfStock")}
              </span>
            </div>
          )}
        </div>
      </Link>

      <div className="text-center">
        <Link href={productHref}>
          <h3 className="text-[15px] font-medium text-[#1a1a1a] mb-1 group-hover:text-[#666666] transition-colors line-clamp-1">
            {localized.name}
          </h3>
        </Link>

        <p className="text-[14px] text-[#666666] mb-3">
          {price || t("contactForPrice")}
        </p>

        {isAvailable ? (
          <button
            onClick={handleAddToCart}
            disabled={isAdding}
            className="w-full py-3 bg-black text-white text-xs uppercase tracking-[0.1em] hover:bg-[#333333] transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
          >
            {isAdding ? tProduct("adding") : tProduct("addToCart")}
          </button>
        ) : (
          <div className="w-full py-3 bg-[#f8f9fa] text-[#666666] text-xs uppercase tracking-[0.1em]">
            {t("outOfStock")}
          </div>
        )}
      </div>
    </motion.div>
  );
}

export default function ProductsGrid({ products, locale }: ProductsGridProps) {
  const t = useTranslations("Solutions");
  const validProducts = products.filter(p => p && p.id);

  return (
    <section className="py-16 lg:py-24 bg-[#1A1A1A]">
      <div className="max-w-[1400px] mx-auto px-4 sm:px-6 lg:px-8">
        <div className="text-center mb-12">
          <h2 className="text-3xl md:text-4xl font-light text-white mb-4">
            {t("completeYourRoutine")}
          </h2>
          <p className="text-[#999999] max-w-2xl mx-auto">
            {t("discoverProducts")}
          </p>
        </div>

        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-6 lg:gap-8">
          {validProducts.map((product, index) => (
            <ProductCardWithAddToCart
              key={product.id}
              product={product}
              index={index}
              locale={locale}
            />
          ))}
        </div>
      </div>
    </section>
  );
}