Метод который вызывается кнопкой Создать задачу в чате битрикс24

public function Task($messageId, $date = '')
	{
		if (!CModule::IncludeModule("tasks"))
			return false;

		$CIMMessage = new CIMMessage($this->user_id);
		$message = $CIMMessage->GetMessage($messageId, true);

		if (!$message)
			return false;

		$task = new \Bitrix\Tasks\Item\Task(0, $this->user_id);

		$taskTitle = substr(trim(preg_replace(
			array("/\n+/is".BX_UTF_PCRE_MODIFIER, '/\s+/is'.BX_UTF_PCRE_MODIFIER),
			" ",
			CTextParser::clearAllTags($message['MESSAGE'])
		)), 0, 255);
		$task->title = $taskTitle? $taskTitle: CTextParser::clearAllTags(GetMessage('IM_SHARE_CHAT_TASK', Array('#LINK#' => '')));
		$task->description = $this->PrepareText($message)."\n";
		$task['RESPONSIBLE_ID'] = $this->user_id;
		if (
			$message['AUTHOR_ID'] > 0 && $message['AUTHOR_ID'] != $this->user_id 
			&& !\Bitrix\Im\User::getInstance($message['AUTHOR_ID'])->isExtranet() 
			&& !\Bitrix\Im\User::getInstance($message['AUTHOR_ID'])->isBot()
		)
		{
			$task['AUDITORS'] = Array($message['AUTHOR_ID']);
		}
		$task['CREATED_BY'] = $this->user_id;

		if (!empty($message['FILES']))
		{
			$diskUf = \Bitrix\Tasks\Integration\Disk\UserField::getMainSysUFCode();
			$task[$diskUf] = array_map(function($value){ return 'n'.$value;}, array_keys($message['FILES']));
		}

		$messageParams = Array();
		if ($message['MESSAGE_TYPE'] == IM_MESSAGE_PRIVATE)
		{
			$messageParams = Array('LINK_ACTIVE' => Array((string)$this->user_id, (string)$message['AUTHOR_ID']));
		}
		else
		{
			$chat = \Bitrix\Im\Model\ChatTable::getById($message['CHAT_ID'])->fetch();
			if ($chat['ENTITY_TYPE'] == 'LINES' && CModule::IncludeModule('crm'))
			{
				$fieldData = explode("|", $chat['ENTITY_DATA_1']);
				if (isset($fieldData[0]) && $fieldData[0] == 'Y' && isset($fieldData[1]) && isset($fieldData[2]))
				{
					$crmType = \CCrmOwnerTypeAbbr::ResolveByTypeID(\CCrmOwnerType::ResolveID($fieldData[1]));
					$task['UF_CRM_TASK'] = array($crmType.'_'.$fieldData[2]);
					
				}
			}
			if ($chat['ENTITY_TYPE'] == 'SONET_GROUP')
			{
				$task['GROUP_ID'] = $chat['ENTITY_ID'];
			}
			else if ($chat['ENTITY_TYPE'] != 'SONET_GROUP')
			{
				$messageParams = Array('LINK_ACTIVE' => Array((string)$this->user_id, (string)$message['AUTHOR_ID']));
			}
		}
		
		$date = intval($date);
		if ($date > 0)
		{
			$task['DEADLINE'] = Bitrix\Main\Type\DateTime::createFromTimestamp($date);
		}
		else
		{
			$results = \Bitrix\Main\Text\DateConverter::decode(CTextParser::clearAllTags($message['MESSAGE']), 1000);
			if (!empty($results))
			{
				$task['DEADLINE'] = $results[0]->getDate();
			}
		}

		$result = $task->save();

		if(!$result->isSuccess())
		{
			return false;
		}

		$link = CTaskNotifications::getNotificationPath(array('ID' => $this->user_id), $task->getId());

		$this->SendMessage($message, GetMessage('IM_SHARE_CHAT_TASK', Array('#LINK#' => $link)), $messageParams);

		return true;
	}