private static Queue<KeyValuePair<string, Queue<string>>> folderFilePairs =
            new Queue<KeyValuePair<string, Queue<string>>>();


        static string  rootTmpFolder = string.Empty;

        private static void Initialize()
        {
            using var watcher = new FileSystemWatcher(rootTmpFolder);

            watcher.NotifyFilter = NotifyFilters.Attributes
                                   | NotifyFilters.CreationTime
                                   | NotifyFilters.DirectoryName
                                   | NotifyFilters.FileName
                                   | NotifyFilters.LastAccess
                                   | NotifyFilters.LastWrite
                                   | NotifyFilters.Security
                                   | NotifyFilters.Size;

            watcher.Changed += OnChanged;

            watcher.Filter = "";
            watcher.IncludeSubdirectories = true;
            watcher.EnableRaisingEvents = true;
        }

        private static void OnChanged(object sender, FileSystemEventArgs e)
        {

        }

        private static void Some()
        {
            var tmpDirectory = Directory.GetDirectories(rootTmpFolder);
            foreach (var tmp in tmpDirectory)
            {
                var filesQueue = new Queue<string>();
                var files = Directory.GetFiles(tmp);
                foreach (var file in files)
                {
                    filesQueue.Enqueue(Path.GetFileNameWithoutExtension(file));
                }

                var keyValuePair = new KeyValuePair<string, Queue<string>>(Path.GetDirectoryName(tmp), filesQueue);
                folderFilePairs.Enqueue(keyValuePair);
            }

        }

        private static void OnUploaded(string oldFilePath)
        {
            var directory = Path.GetDirectoryName(oldFilePath);
        }