DeliverySelector::getExtraServices

private function getExtraServices(array $deliveryServiceIds): array
{
	//@TODO extract to API

	$result = [];

	$dbExtraServices = BitrixSaleDeliveryExtraServicesTable::getList(
		[
			'filter' => ['DELIVERY_ID' => $deliveryServiceIds],
			'select' => [
				'*',
				'DELIVERY_SERVICE_CODE' => 'DELIVERY_SERVICE.CODE',
			]
		]
	)->fetchAll();

	$knownClassesMap = [
		'\' . BitrixSaleDeliveryExtraServicesEnum::class => 'dropdown',
		'\' . BitrixSaleDeliveryExtraServicesCheckbox::class => 'checkbox',
	];

	foreach ($dbExtraServices as $extraService)
	{
		if (!isset($knownClassesMap[$extraService['CLASS_NAME']]))
		{
			continue;
		}

		$type = $knownClassesMap[$extraService['CLASS_NAME']];

		$options = [];
		if ($type === 'dropdown' && isset($extraService['PARAMS']['PRICES']) && is_array($extraService['PARAMS']['PRICES']))
		{
			foreach ($extraService['PARAMS']['PRICES'] as $id => $paramItem)
			{
				$options[] = [
					'id' => $id,
					'title' => $paramItem['TITLE'],
					'code' => $paramItem['CODE'],
					'price' => $paramItem['PRICE'],
				];
			}
		}

		$result[] = [
			'id' => $extraService['ID'],
			'deliveryServiceCode' => $extraService['DELIVERY_SERVICE_CODE'],
			'code' => $extraService['CODE'],
			'name' => $extraService['NAME'],
			'type' => $type,
			'initValue' => $extraService['INIT_VALUE'],
			'options' => $options,
			'deliveryServiceIds' => [$extraService['DELIVERY_ID']],
		];
	}

	return $result;
}