GoogleApiPush::checkSectionsPush

static function checkSectionsPush($localSections, $userId, $connectionId)
{
	$googleApiConnection = new GoogleApiSync($userId, $connectionId);
	//Create new channels and refresh old push channels for sections of current connection
	$sectionIds = self::getNotVirtualSectionIds($localSections);

	$pushChannels = PushTable::getList([
		'filter' => [
			'=ENTITY_TYPE' => self::TYPE_SECTION,
			'=ENTITY_ID' => $sectionIds,
		]
	]);
	$inactiveSections = array_flip($sectionIds);

	while($row = $pushChannels->fetch())
	{
		$now = time();
		$tsExpires = strtotime($row['EXPIRES']);

		if ($now > $tsExpires)
		{
			self::deletePushChannel($row);
			continue;
		}

		if (($tsExpires - $now) > GoogleApiSync::ONE_DAY
			|| self::isAuthError(self::getLastResultBySectionId((int)$row['ENTITY_ID']))
		)
		{
			unset($inactiveSections[$row['ENTITY_ID']]);
			continue;
		}

		$googleApiConnection->stopChannel($row['CHANNEL_ID'], $row['RESOURCE_ID']);
		self::deletePushChannel($row);
		unset($inactiveSections[$row['ENTITY_ID']]);

		$localCalendarIndex = array_search($row['ENTITY_ID'], array_column($localSections, 'ID'));
		if ($localCalendarIndex !== false)
		{
			$channelInfo = $googleApiConnection->startWatchCalendarList($localSections[$localCalendarIndex]['GAPI_CALENDAR_ID']);

			if ($channelInfo)
			{
				PushTable::update(
					[
						'ENTITY_TYPE' => $row['ENTITY_TYPE'],
						'ENTITY_ID' => $row['ENTITY_ID']
					],
					[
						'CHANNEL_ID' => $channelInfo['id'],
						'RESOURCE_ID' => $channelInfo['resourceId'],
						'EXPIRES' => $channelInfo['expiration'],
						'NOT_PROCESSED' => 'N'
					]
				);
			}
		}
	}

	if (is_array($localSections) && is_array($inactiveSections) && $googleApiConnection instanceof GoogleApiSync)
	{
		self::startChannelForInActiveSections($localSections, $inactiveSections, $googleApiConnection);
	}

	return false;
}