shippingitemcollection.php

См. документацию.

<?php
 
namespace Sale\Handlers\Delivery\YandexTaxi\ClaimBuilder;
 
use Bitrix\Main\Error;
use Bitrix\Main\Localization\Loc;
use Sale\Handlers\Delivery\YandexTaxi\Api\RequestEntity\ShippingItem;
use Bitrix\Main\Result;

final class ShippingItemCollection implements \IteratorAggregate
{
    private $items = [];

    public function addItem(ShippingItem $item)
    {
        $this->items[] = $item;
 
        return $this;
    }

    public function isValid(): Result
    {
        $result = new Result();
 
        if (!$this->items)
        {
            return $result->addError(new Error(Loc::getMessage('SALE_YANDEX_TAXI_EMPTY_PRODUCT_LIST')));
        }
 
        foreach ($this->items as $item)
        {
            if ($item->getQuantity() <= 0)
            {
                return $result->addError(new Error(Loc::getMessage('SALE_YANDEX_TAXI_PRODUCT_EMPTY_QUANTITY')));
            }
        }
 
        return $result;
    }

    public function getIterator()
    {
        return new \ArrayIterator($this->items);
    }
}