OnlyOffice::handleOnlyOfficeAction

public function handleOnlyOfficeAction(ModelsDocumentSession $documentSession, JsonPayload $payload): ?ResponseJson
{
	$this->enableExtendedErrorInfo();

	$payloadData = $payload->getData();
	$status = $payloadData['status'];

	$this->processRestrictionLogs($status, $payloadData);

	Application::getInstance()->addBackgroundJob(function () use ($status, $documentSession){
		$this->processStatusToInfoModel($documentSession, $status);
	});
	$this->logUsageMetrics($documentSession, $payloadData);

	switch ($status)
	{
		case self::STATUS_IS_BEING_EDITED:
			$this->handleDocumentIsEditing($documentSession, $payloadData);
			break;

		case self::STATUS_IS_READY_FOR_SAVE:
		case self::STATUS_ERROR_WHILE_SAVING:
			if ($this->saveDocument($documentSession, $payloadData))
			{
				$this->deactivateDocumentSessions($documentSession->getExternalHash());
				$this->commentAttachedObjectsOnBackground($documentSession);
			}
			break;

		case self::STATUS_CLOSE_WITHOUT_CHANGES:
			$this->handleDocumentClosedWithoutChanges($documentSession);
			break;

		case self::STATUS_FORCE_SAVE:
		case self::STATUS_ERROR_WHILE_FORCE_SAVING:
			$this->saveDocument($documentSession, $payloadData);
			break;
	}

	$this->processStatusToInfoModel($documentSession, $status);
	if ($documentSession->getInfo() && $documentSession->getInfo()->wasFinallySaved())
	{
		$this->sendEventToDocumentChannel($documentSession);
	}

	if ($this->getErrors())
	{
		return null;
	}

	return new ResponseJson(['error' => 0]);
}