<?php

declare(strict_types=1);

namespace External\CykloSpecialityBundle\EventSubscriber;

use KupShop\OrderingBundle\Cart;
use KupShop\OrderingBundle\Event\CartEvent;
use KupShop\OrderingBundle\EventListener\CartEventListener;
use Symfony\Component\HttpFoundation\Exception\SessionNotFoundException;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Contracts\Service\Attribute\Required;

class OrderCartSubscriber extends CartEventListener
{
    protected RequestStack $requestStack;

    #[Required]
    public function setRequestStack(RequestStack $requestStack): void
    {
        $this->requestStack = $requestStack;
    }

    public function checkCoupons(CartEvent $event): void
    {
        $cart = $event->getCart();
        $purchaseState = $cart->getPurchaseState();

        foreach ($purchaseState->getDiscounts() as $discount) {
            if ($couponPrice = $discount->getNote()['coupon_price']) {
                $totalDiscountPrice = toDecimal($couponPrice);

                if ($cart->totalPriceWithVat->lowerThan($totalDiscountPrice)) {
                    $coupon = $discount->getNote()['generated_coupon']['code'];
                    $this->deleteCoupon($cart, $coupon,
                        sprintf(translate('cart_coupon_failed_value', 'cyklospeciality'), $coupon, printPrice($totalDiscountPrice)));
                }
            }
        }

        parent::checkCoupons($event);
    }

    private function deleteCoupon(Cart $cart, string $coupon, ?string $deleteMessage = null): void
    {
        try {
            $session = $this->requestStack->getSession();
        } catch (SessionNotFoundException) {
            return;
        }

        $messages = $session->getFlashBag()->peek('success');
        foreach ($messages as $index => $message) {
            if (str_starts_with((string) $message['id'], 'coupon')) {
                unset($messages[$index]);
            }
        }
        $session->getFlashBag()->set('success', $messages);

        $cart->deleteCoupon(strtoupper($coupon));

        addUserMessage(
            $deleteMessage ?: sprintf(translate('cart_coupon_failed', 'cyklospeciality'), $coupon),
            'warning',
            [
                'id' => 'coupons_'.$coupon,
            ],
        );
    }
}