<?php
namespace App\Cart;


use App\Base\Controller;
use App\Pages\PageService;
use App\Cart\Requests\AddProductableRequest;
use App\Cart\Requests\RemoveProductRequest;
use App\Cart\Requests\UpdateProductableQuantityRequest;
use App\Discounts\DiscountServiceInterface;
use App\Products\ProductableEnum;
use Illuminate\Contracts\View\View;
use Symfony\Component\HttpFoundation\JsonResponse;

/**
 * Represents a shopping cart
 *
 * Class ShoppingCart
 * @package App\Cart
 */
class ShoppingCartController extends Controller
{
    /**
     * @var DiscountServiceInterface $discountService
     */
    private $discountService;

    public function __construct(PageService $pageService)
    {
//        $this->shoppingCart = app(ShoppingCart::class); //Don't do this. The shopping cart service restores itself using session. But the session is not yet initialized in constructors.
        parent::__construct();
    }

    /**
     * @return View
     * @throws \Illuminate\Contracts\Container\BindingResolutionException
     */
    public function index() : View
    {
        return view('templates.cart', [
            'links' => $this->links,
        ]);
    }

    /**
     * Add a product to the cart
     *
     * @param AddProductableRequest $request
     *
     * @return JsonResponse
     */
    public function addProductToShoppingCart(AddProductableRequest $request) : JsonResponse
    {
        /** @var ShoppingCartInterface $shoppingCart */
        $shoppingCart = app(ShoppingCartInterface::class);

        $productableEnum   = $request->get('productableEnum');
        $productableId      = $request->get('productableId');
        $quantity           = $request->get('quantity');

        $productable = ProductableEnum::getClassFromEnumValue($productableEnum)::where('id', $productableId)->with('translation', 'translations')->first();
        $shoppingCart->addProductable($productable, $quantity);

        return response()->json(null, 202);
    }

    /**
     * Add a product to the cart
     *
     * @param RemoveProductRequest $request
     * @return JsonResponse
     */
    public function removeItemFromShoppingCart(RemoveProductRequest $request) : JsonResponse
    {
        $shoppingCart = app(ShoppingCartInterface::class);

        $id = $request->get('itemId');
        if($id === null) abort(400, 'No id specified');

        if($id !== null) {
            /** @var ShoppingCartInterface $shoppingCart */
            $shoppingCart->deleteItem($id);
        }

        return response()->json(null, 202);
    }

    /**
     * Add a product to the cart
     *
     * @param UpdateProductableQuantityRequest $request
     * @return JsonResponse
     */
    public function setItemQuantityInShoppingcart(UpdateProductableQuantityRequest $request) : JsonResponse
    {
        $shoppingCart = app(ShoppingCartInterface::class);

        if($request->has('itemId')) {
            /** @var ShoppingCartInterface $shoppingCart */
            $shoppingCart->setItemQuantity($request->get('itemId'), $request->get('quantity'));
        }

        return response()->json(null, 202);
    }
}