TunnelManager::prepareRobotToTunnel

protected function prepareRobotToTunnel(Robot $robot, string $stageId, int $categoryId): ?array
{
	$props = $robot->getProperties();

	if (!is_numeric($props['CategoryId']) || $categoryId === (int)$props['CategoryId'])
	{
		return null;
	}

	if (empty($props['StageId']))
	{
		$target = Factory::createTarget($this->entityTypeId);
		$stages = array_keys($target->getStatusInfos($props['CategoryId']));
		$props['StageId'] = reset($stages);
	}

	if (\CBPDocument::isExpression($props['StageId']))
	{
		return null;
	}

	return [
		'srcCategory' => $categoryId,
		'srcStage' => $stageId,
		'dstCategory' => $props['CategoryId'],
		'dstStage' => $props['StageId'],
		'robotAction' => $this->getRobotAction($robot),
		'robot' => $robot->toArray()
	];
}