// Needs performance improvements
private void CreateEntriesFromFileSystem(DirectoryInfo dir, IEnumerable <FileTypes> filter, bool recurse = false)
{
try {
// Get all entries
IEnumerable <FileSystemInfo> fsEntries = dir.GetFileSystemInfos();
// Create filtering hashset
HashSet <string> filterExtensions = FileExtension.GetFsExtensionFilter(filter?.ToArray());
using (var ctx = new MediaContext()) {
// Find a possible parent entry for the current dir
string currentParentId = FileSystemItem.GenerateId(dir.Parent.FullName);
// Create the currently scanned dir as object
var currentDirObj = ctx.Items.Add(FileSystemItem.CreateFromFileSystemInfo(dir)) as DirectoryItem;
// if we have a current parent, add it
if (ctx.Items.FirstOrDefault(e => e.Id == currentParentId) is DirectoryItem currentDirParent)
{
currentDirObj.Parents.Add(currentDirParent);
}
IEnumerable <FileSystemInfo> fsFileEntries =
fsEntries.Where(e =>
!File.GetAttributes(e.FullName).HasFlag(FileAttributes.Directory) &&
(!filterExtensions.Any() ||
filterExtensions.Contains(e.Extension)));
if (fsFileEntries.Any())
{
foreach (var fsFileEntry in fsFileEntries)
{
FileSystemItem currentEntryObj = ctx.Items.Add(
FileSystemItem.CreateFromFileSystemInfo(fsFileEntry));
currentEntryObj.Parents.Add(currentDirObj);
currentDirObj.Children.Add(currentEntryObj);
}
}
ctx.SaveChanges();
}
// Recurse sub-dirs
if (recurse)
{
foreach (var fsDir in fsEntries.Where(e => File.GetAttributes(e.FullName).HasFlag(FileAttributes.Directory)))
{
CreateEntriesFromFileSystem(new DirectoryInfo(fsDir.FullName), filter, recurse);
}
}
} catch (Exception ex) {
}
}
