CalendarAjax::getViewEventSliderAction

public function getViewEventSliderAction()
{
	$request = $this->getRequest();
	$responseParams = [];
	$uniqueId = 'calendar_view_slider_' . mt_rand();
	$entryId = (int)$request->get('entryId');
	$userId = CCalendar::GetCurUserId();
	$entry = null;

	if ($entryId)
	{
		$entry = CCalendarEvent::getEventForViewInterface($entryId,
			[
				'eventDate' => $request->get('dateFrom'),
				'timezoneOffset' => (int)$request->get('timezoneOffset'),
				'userId' => $userId
			]
		);
	}
	else
	{
		$this->addError(new Error(Loc::getMessage('EC_EVENT_NOT_FOUND'), 'EVENT_NOT_FOUND_01'));
	}

	if ($entry)
	{
		$responseParams['uniqueId'] = $uniqueId;
		$responseParams['userId'] = $userId;
		$responseParams['userTimezone'] = CCalendar::GetUserTimezoneName($userId);
		$responseParams['entry'] = $entry;
		$responseParams['userIndex'] = CCalendarEvent::getUserIndex();
		$responseParams['userSettings'] = UserSettings::get($userId);
		$responseParams['plannerFeatureEnabled'] = Bitrix24Manager::isPlannerFeatureEnabled();
		$responseParams['entryUrl'] = CHTTP::urlAddParams(
			CCalendar::GetPath($entry['CAL_TYPE'], $entry['OWNER_ID'], true),
			[
				'EVENT_ID' => (int)$entry['ID'],
				'EVENT_DATE' => urlencode($entry['DATE_FROM'])
			]);
		$responseParams['dayOfWeekMonthFormat'] = stripslashes(
			BitrixMainContext::getCurrent()
				->getCulture()
				->getDayOfWeekMonthFormat()
		);

		$sections = CCalendarSect::GetList([
			'arFilter' => [
				'ID' => $entry['SECTION_ID'],
				'ACTIVE' => 'Y',
			],
			'checkPermissions' => false,
			'getPermissions' => true
		]);

		$responseParams['section'] = isset($sections[0]) ? $sections[0] : null;

		return new BitrixMainEngineResponseComponent(
			'bitrix:calendar.view.slider',
			'',
			[
				'id' => $uniqueId,
				'event' => $entry,
				'type' => CCalendar::GetType(),
				'sectionName' => $_REQUEST['section_name'],
				'bIntranet' => CCalendar::IsIntranetEnabled(),
				'bSocNet' => CCalendar::IsSocNet(),
				'AVATAR_SIZE' => 21
			],
			$responseParams
		);
	}

	$this->addError(new Error(Loc::getMessage('EC_EVENT_NOT_FOUND'), 'EVENT_NOT_FOUND_02'));

	return [];
}