ExtraServicesService::makeInternalParams

static function makeInternalParams(string $type, array $params): ?array
{
	$result = null;

	if ($type === self::ENUM_TYPE)
	{
		if (is_array($params['ITEMS']))
		{
			$result = [
				'PRICES' => [],
			];

			foreach ($params['ITEMS'] as $item)
			{
				if (!isset($item['TITLE']) || empty($item['TITLE']))
				{
					throw new RestException('Item title must be defined for enum item', self::ERROR_CHECK_FAILURE);
				}

				if (!isset($item['CODE']) || empty($item['CODE']))
				{
					throw new RestException('Item code must be defined for enum item', self::ERROR_CHECK_FAILURE);
				}

				$result['PRICES'][$item['CODE']] = [
					'TITLE' => $item['TITLE'],
					'CODE' => $item['CODE'],
					'PRICE' => isset($item['PRICE']) ? (float)$item['PRICE'] : null,
				];
			}
		}
	}
	elseif (in_array($type, [self::CHECKBOX_TYPE, self::QUANTITY_TYPE]) && array_key_exists('PRICE', $params))
	{
		$result['PRICE'] = isset($params['PRICE']) ? (float)$params['PRICE'] : null;
	}

	return $result;
}