productcategory.php

См. документацию.

<?php
 
namespace Bitrix\Sale\Services\PaySystem\Restrictions;
 
use Bitrix\Main\Localization\Loc;
use Bitrix\Sale\Basket;
use Bitrix\Sale\BasketItem;
use Bitrix\Sale\Internals\Entity;
use Bitrix\Sale\Internals\EntityCollection;
use Bitrix\Sale\Order;
use Bitrix\Sale\Payment;
use Bitrix\Sale\PaymentCollection;
use Bitrix\Sale\Services\Base\ProductCategoryRestriction;
use Twilio\TwiML\Voice\Pay;
 
Loc::loadMessages(__FILE__);
 
class ProductCategory extends ProductCategoryRestriction
{
    protected static function getJsHandler(): string
    {
        return 'BX.Sale.PaySystem';
    }

    public static function getClassDescription() : string
    {
        return '';
    }

    protected static function getBasketItems(Entity $entity): array
    {
        if (!$entity instanceof Payment)
        {
            return [];
        }

        if (!$collection = $entity->getCollection())
        {
            return [];
        }

        if (!$order =  $collection->getOrder())
        {
            return [];
        }

        if ($orderBasket = $order->getBasket())
        {
            return $orderBasket->getBasketItems();
        }
 
        return [];
    }
}