IEnumerable <ThemedFileElement> ReadFileSystem()
{
string basePath = BasePath.GetBasePath(basePathId);
Directory.CreateDirectory(basePath);
return(Directory.EnumerateFiles(basePath)
.Select(file => new { file, accessTime = File.GetLastAccessTime(file) })
.OrderByDescending(projection => projection.accessTime)
.Select(projection => new ThemedFileElement(projection.file, projection.accessTime, basePathId)));
}