AcManager.Tools.Managers.InnerHelpers.WatchingTask.AsyncAction C# (CSharp) Method

        private async Task AsyncAction() {
            Debug.WriteLine("ACMGR: WatchingTask.AsyncAction()");

            while (_delay) {
                _delay = false;
                Debug.WriteLine("ACMGR: WatchingTask.AsyncAction() Delay");
                await Task.Delay(_queue.Any() && _queue.Peek().Type == WatcherChangeTypes.Deleted ? 300 : 200);
            }

            Application.Current.Dispatcher.Invoke(() => {
                Debug.WriteLine("ACMGR: WatchingTask.AsyncAction() Invoke");
                // in some cases (CREATED, DELETED) queue could be cleared
                if (_queue.Any()) {
                    var change = _queue.Dequeue();
                    _applier.ApplyChange(_location, change);

                    if (_queue.Any()) {
                        if (change.Type == WatcherChangeTypes.Changed) {
                            // very special case:
                            // after CHANGED could be only CHANGED, and only with FULL_FILENAME
                            // let’s process all of them in one INVOKE

                            foreach (var next in _queue) {
                                _applier.ApplyChange(_location, next);
                            }
                            _queue.Clear();
                        } else {
                            Debug.WriteLine("ACMGR: WatchingTask.AsyncAction() Next");
                            AsyncAction().Forget();
                            return;
                        }
                    }
                }

                _delay = false;
                _actionInProcess = false;
            });
        }