ComponentBase::getTopIndexedFolders

public function getTopIndexedFolders(int $depth = 2): array
{
	static $list;
	if ($list === null)
	{
		$list = [0 => ''];
		$res = IndexInternalsPathIndexTable::getList([
			'select' => ['ID', 'PATH'],
			'filter' => [
				'=INDEXED' => 'Y',
				'=IS_DIR' => 'Y',
				'<=DEPTH_LEVEL' => $depth,
			],
			'order' => [
				'DEPTH_LEVEL' => 'ASC',
				'PATH' => 'ASC',
			]
		]);
		while ($row = $res->fetch())
		{
			$list[$row['ID']] = $row['PATH'];
		}
	}

	return $list;
}