EventManager::prepareSeries

private function prepareSeries($deltaData, SectionConnection $sectionLink): array
{
	$result = [];
	/** @var EventDto $masterDto */
	$masterDto    = $deltaData[Helper::EVENT_TYPES['series']];
	/** @var EventDto[] $exceptionList */
	$exceptionList = $deltaData[Helper::EVENT_TYPES['exception']] ?? [];

	$masterEvent = $this->context->getConverter()->convertEvent($masterDto, $sectionLink->getSection());

	if (!empty($exceptionList)) {
		$exceptionsDates = array_map(function (EventDto $exception) {
			return (new MainTypeDateTime(
				$exception->start->dateTime,
				$this->helper::TIME_FORMAT_LONG,
				new DateTimeZone($exception->start->timeZone),
				))->format('d.m.Y');
			}, $exceptionList
		);

		$excludeCollection = new CoreEventPropertiesExcludedDatesCollection($exceptionsDates);
		$masterEvent->setExcludedDateCollection($excludeCollection);
	}

	$result[] = [
		'type' => 'master',
		'id' => $masterDto->id,
		'event' => $masterEvent,
		'version' => $masterDto->changeKey,
		'etag' => $masterDto->etag,
		'data' => $this->prepareCustomData($masterDto),
	];

	foreach ($exceptionList as $exception) {
		$event = $this->context->getConverter()->convertEvent($exception, $sectionLink->getSection());
		$result[] = [
			'type' => 'exception',
			'event' => $event,
			'id' => $exception->id,
			'version' => $exception->changeKey,
			'etag' => $exception->etag,
			'recurrence' => $exception->seriesMasterId,
			'data' => $this->prepareCustomData($exception),
		];
	}

	return $result;
}