/// <summary>
/// Deletes a file or directory. If <paramref name="file"/> is a directory, then its entire content is deleted as well.
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public async Task <FileResult> Delete(SoundboxNode file)
{
file = GetCleanFile(file);
if (file == null)
{
return(new FileResult(BaseResultStatus.INVALID_PARAMETER));
}
if (IsRootDirectory(file))
{
return(new FileResult(FileResultStatus.ILLEGAL_FILE_EDIT_DENIED_ROOT));
}
try
{
DatabaseLock.EnterWriteLock();
//save previous watermark for event
Guid previousWatermark = GetRootWatermark();
Guid newWatermark = Guid.NewGuid();
//remove from cache
file.ParentDirectory.Children.Remove(file);
NodesCache.Remove(file.ID);
//do not remove the parent from the file: need it for the client event
//remove from disk
DeleteRecursive(file);
//delete from database
//TODO async
Database.Delete(file);
//update cache and database watermarks (this will call Update for parent)
SetWatermark(file, newWatermark);
//update our clients
GetHub().OnFileEvent(new SoundboxFileChangeEvent()
{
Event = SoundboxFileChangeEvent.Type.DELETED,
File = FlattenForEvent(file),
PreviousWatermark = previousWatermark
});
return(new FileResult(BaseResultStatus.OK, file, previousWatermark));
}
catch (Exception ex)
{
Log(ex);
return(new FileResult(BaseResultStatus.INTERNAL_SERVER_ERROR));
}
finally
{
DatabaseLock.ExitWriteLock();
}
}