<?php

namespace App\Http\Controllers;

use App\Catalog\ProductCard;
use App\Services\Wishlist;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Collection;
use Illuminate\View\View;
use Lunar\Models\Product;
use Modules\Core\Catalog\Services\ProductService;

class WishlistController extends Controller
{
    public function __construct(
        private readonly Wishlist $wishlist,
    ) {}

    /**
     * The account's wishlist page.
     */
    public function index(string $locale, ProductService $products): View
    {
        return view('account.wishlist', ['products' => $this->products($products)]);
    }

    /**
     * The same list for a guest, from their cookie. Logged-in users are sent
     * to the account version.
     */
    public function guest(string $locale, ProductService $products): View|RedirectResponse
    {
        if (auth()->check()) {
            return redirect()->route('account.wishlist');
        }

        return view('wishlist.guest', ['products' => $this->products($products)]);
    }

    /**
     * Adds or removes a product, for guests and logged-in shoppers alike. The
     * heart button's Stimulus controller asks for JSON; without JS the form
     * posts normally and comes back to the same page.
     */
    public function toggle(string $locale, Request $request, int $productId): JsonResponse|RedirectResponse
    {
        abort_unless(Product::whereKey($productId)->exists(), 404);

        $active = $this->wishlist->toggle($productId);

        if ($request->expectsJson()) {
            return response()->json(['active' => $active]);
        }

        return back();
    }

    /**
     * Product cards for the current wishlist, newest first. Products no longer
     * in the search index (deleted, unpublished) are simply skipped.
     */
    private function products(ProductService $products): Collection
    {
        return collect($this->wishlist->ids())
            ->map(fn (int $id) => $products->getById($id))
            ->filter()
            ->map(fn (array $product) => ['id' => $product['id'], ...ProductCard::fromIndexed($product)])
            ->values();
    }
}