private function getFiles(): array
	{
		$result = [];
		$files = Finder::find('*')
			->in($this->getFullPath());
		foreach ($files as $file) {
			$result[] = new FileInfo($file);
		}
		usort($result, function ($a, $b) {
			if ($a->isDir == $b->isDir) {
				return strcmp($a->name, $b->name);
			} else {
				if ($a->isDir) {
					return -1;
				} else {
					return 1;
				}
			}
		});
		return $result;
	}