// POST: api/Directory
        public dynamic Post([FromBody] DirAction action)
        {
            action.SetType();
            switch (action.Type)
            {
            case ActionType.GetDrives:
                return(DirectoryManager.GetDrives());

            case ActionType.GetItems:
                return(DirectoryManager.GetDirItems(action.Path));

            case ActionType.CountFiles:
            {
                string[]    args    = action.Path.Split('|');
                FileCounter counter = new FileCounter(args[0], args[1]);
                string      start   = DirectoryManager.GetNextFolder(counter.Path, counter.LastPath);
                while (!DirectoryManager.CountFiles(start, ref counter))
                {
                    start = DirectoryManager.GetNextFolder(counter.Path, counter.LastPath);
                }
                counter.Done = (start.Length == 0);
                return(counter);
            }
            }
            return(null);
        }