TempFileAgent::clearOldRecords

static function clearOldRecords(): string
{
	$expired = new DateTime();
	$expired->add('-1 days');
	$limit = 20;

	$tempFiles = TempFileTable::getList([
		'filter' => [' $expired->toString()],
		'limit' => $limit,
		'order' => ['CREATED_AT' => 'ASC']
	])->fetchCollection();

	foreach ($tempFiles as $tempFile)
	{
		$tempFile->delete();
	}

	$agentName = '\' . __METHOD__ . '();';
	$agents = CAgent::getList(['ID' => 'DESC'], [
		'MODULE_ID' => 'ui',
		'NAME' => $agentName,
	]);

	if ($agent = $agents->fetch())
	{
		$interval = $tempFiles->count() < $limit ? static::AGENT_MAX_INTERVAL : static::AGENT_MIN_INTERVAL;
		if ((int)$agent['AGENT_INTERVAL'] !== $interval)
		{
			CAgent::update($agent['ID'], ['AGENT_INTERVAL' => $interval]);
		}
	}

	return $agentName;
}