client.php

<?php
namespace Bitrix\Sale\Exchange\Integration\Service\Batchable;
 
 
use Bitrix\Main\Error;
use Bitrix\Sale\Exchange\Integration;
use Bitrix\Sale\Order;
 
abstract class Client extends Proxy
{
    static public function resolveFieldsValuesFromOrderList(array $params)
    {
        $indexes = static::getIndexesFromParams($params);
        $list = static::getUsersFieldsValues($indexes);
 
        return count($list)>0 ? static::collapseUserList($list):[];
    }
    static public function getUserCollectionFromOrderList(array $params)
    {
        $indexes = static::getIndexesFromParams($params);
        return static::loadUserCollection($indexes);
    }
 
    static protected function collapseUserList(array $list)
    {
        $result = [];
        foreach($list as $item)
        {
            $result[$item['ID']] = $item;
        }
        return $result;
    }
 
    abstract static protected function getUsersFieldsValues(array $indexes);
 
    //resolveClients
 
    static protected function loadUserCollection($indexes)
    {
        $clients = new Integration\Service\User\Container\Collection();
        foreach ($indexes as $index)
        {
            $order = Order::load($index);
 
            $typeName = Integration\Service\User\Entity\Base::resolveNamePersonDomain($order->getPersonTypeId());
            $clients->addItem(
                Integration\Service\User\Container\Item::create(
                    Integration\Service\User\Factory::create(
                        Integration\Service\User\EntityType::resolveId($typeName))
                        ->load($order))->setInternalIndex($index));
        }
        return $clients;
    }
    static protected function getUserCollectionByTypeId(Integration\Service\User\Container\Collection $collection, $typeId)
    {
        $clients = new Integration\Service\User\Container\Collection();
        foreach ($collection as $item)
        {
            if($item->getEntity()->getType() == $typeId)
            {
                $clients->addItem($item);
            }
        }
        return $clients;
    }
}