"use client";

import { Suspense, use, useCallback } from "react";
import { useRouter } from "next/navigation";
import ReactLenis from "lenis/react";
import { ThemeProvider } from "@/providers/themeProvider/ThemeProvider";
import ProductDetailCard from "@/components/ecommerce/productDetail/ProductDetailCard";
import ProductCart from "@/components/ecommerce/cart/ProductCart";
import { useProductDetail } from "@/hooks/useProductDetail";
import { useCart } from "@/hooks/useCart";
import { useCheckout } from "@/hooks/useCheckout";
import NavbarLayoutFloatingOverlay from '@/components/navbar/NavbarLayoutFloatingOverlay/NavbarLayoutFloatingOverlay';
import FooterLogoEmphasis from '@/components/sections/footer/FooterLogoEmphasis';

interface ProductPageProps {
    params: Promise<{ id: string }>;
}

export default function ProductPage({ params }: ProductPageProps) {
    return (
        <Suspense fallback={null}>
            <ProductPageContent params={params} />
        </Suspense>
    );
}

function ProductPageContent({ params }: ProductPageProps) {
    const { id } = use(params);
    const router = useRouter();

    const {
        product,
        isLoading,
        images,
        meta,
        variants,
        quantityVariant,
        selectedQuantity,
        createCartItem,
    } = useProductDetail(id);

    const {
        items: cartItems,
        isOpen: cartOpen,
        setIsOpen: setCartOpen,
        addItem,
        updateQuantity,
        removeItem,
        total: cartTotal,
        getCheckoutItems,
    } = useCart();

    const { buyNow, checkout, isLoading: isCheckoutLoading } = useCheckout();

    const handleAddToCart = useCallback(() => {
        const item = createCartItem();
        if (item) {
            addItem(item);
        }
    }, [createCartItem, addItem]);

    const handleBuyNow = useCallback(() => {
        if (product) {
            buyNow(product, selectedQuantity);
        }
    }, [product, selectedQuantity, buyNow]);

    const handleCheckout = useCallback(async () => {
        if (cartItems.length === 0) return;

        const currentUrl = new URL(window.location.href);
        currentUrl.searchParams.set("success", "true");

        await checkout(getCheckoutItems(), { successUrl: currentUrl.toString() });
    }, [cartItems, checkout, getCheckoutItems]);

    const navbarProps = {
        navItems: [{ name: "Home", id: "/" }, { name: "Shop", id: "/shop" }],
        brandName: "Смачна Випічка",        button: { text: "Cart", onClick: () => setCartOpen(true) },
        className: "py-2 lg:py-4",        buttonClassName: "px-4 py-2 lg:px-6 lg:py-3 text-sm lg:text-base font-semibold"
    };

    const footerProps = {
        columns: [
            { items: [{ label: "Home", href: "#hero" }, { label: "Menu", href: "#products" }, { label: "About Us", href: "#about" }] },
            { items: [{ label: "FAQ", href: "#faq" }, { label: "Contact", href: "#contact" }, { label: "Privacy Policy", href: "/privacy" }] },
            { items: [{ label: "Follow Us", href: "https://facebook.com/smachnavypichka" }, { label: "Instagram", href: "https://instagram.com/smachnavypichka" }] }
        ],
        logoText: "Смачна Випічка",        className: "bg-card text-foreground/90 py-8 lg:py-12 text-center"
    };

    return (
        <ThemeProvider
            defaultButtonVariant="icon-arrow"
            defaultTextAnimation="reveal-blur"
            borderRadius="soft"
            contentWidth="mediumLarge"
            sizing="mediumSizeLargeTitles"
            background="noise"
            cardStyle="gradient-mesh"
            primaryButtonStyle="radial-glow"
            secondaryButtonStyle="radial-glow"
            headingFontWeight="bold"
        >
            <ReactLenis root>
                <div id="navbar" data-section="navbar">
                     <NavbarLayoutFloatingOverlay {...navbarProps} />
                </div>

                <main>
                {isLoading ? (
                    <div className="min-h-screen flex items-center justify-center pt-20">
                        <div id="loading-state" data-section="loading-state">
                            <p className="text-foreground">Loading product...</p>
                        </div>
                    </div>
                ) : !product ? (
                    <div className="min-h-screen flex items-center justify-center pt-20">
                        <div id="not-found-state" data-section="not-found-state" className="text-center">
                            <p className="text-foreground mb-4">Product not found</p>
                            <button
                                onClick={() => router.push("/shop")}
                                className="primary-button px-6 py-2 rounded-theme text-primary-cta-text"
                            >
                                Back to Shop
                            </button>
                        </div>
                    </div>
                ) : (
                    <div id="product-detail-card" data-section="product-detail-card">
                        <ProductDetailCard
                            layout="page"
                            name={product.name}
                            price={product.price}
                            salePrice={meta.salePrice}
                            rating={product.rating || 0}
                            description={product.description}
                            images={images}
                            variants={variants.length > 0 ? variants : undefined}
                            quantity={quantityVariant}
                            ribbon={meta.ribbon}
                            inventoryStatus={meta.inventoryStatus}
                            inventoryQuantity={meta.inventoryQuantity}
                            sku={meta.sku}
                            buttons={[
                                { text: "Add To Cart", onClick: handleAddToCart },
                                { text: "Buy Now", onClick: handleBuyNow },
                            ]}
                        />
                    </div>
                )}
                </main>

                <div id="product-cart" data-section="product-cart">
                    <ProductCart
                        isOpen={cartOpen}
                        onClose={() => setCartOpen(false)}
                        items={cartItems}
                        onQuantityChange={updateQuantity}
                        onRemove={removeItem}
                        total={`$${cartTotal}`}
                        buttons={[
                            {
                                text: isCheckoutLoading ? "Processing..." : "Check Out",                                onClick: handleCheckout,
                            },
                        ]}
                    />
                </div>

                <div id="footer" data-section="footer">
                    <FooterLogoEmphasis {...footerProps} />
                </div>
            </ReactLenis>
        </ThemeProvider>
    );
}
