Sms::getMessageStatusCode

static function getMessageStatusCode(int $statusId, Event $event): ?int
{
	if ($statusId === MessageStatus::DELIVERED)
	{
		return static::MESSAGE_SUCCESS;
	}

	if ($statusId === MessageStatus::READ)
	{
		return static::MESSAGE_READ;
	}

	if (in_array($statusId, [MessageStatus::ERROR, MessageStatus::EXCEPTION, MessageStatus::UNDELIVERED, MessageStatus::FAILED], true))
	{
		return static::MESSAGE_FAILURE;
	}

	return null;
}