/// <summary>
///
/// </summary>
/// <param name="recognitionService"></param>
public PreviewViewModel(RecognitionService recognitionService)
{
RecognitionService = recognitionService ?? throw new ArgumentNullException(nameof(recognitionService));
Observable.FromEventPattern(
RecognitionService,
nameof(RecognitionService.Started))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(_ =>
{
IsStartedAgain = IsActive;
Text = "Waiting command...";
IsActive = true;
});
Observable.FromEventPattern <ICommand>(
RecognitionService,
nameof(RecognitionService.PreviewCommandReceived))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(pattern =>
{
Text = $"{pattern.EventArgs}";
});
Observable.FromEventPattern <ICommand>(
RecognitionService,
nameof(RecognitionService.CommandReceived))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(pattern =>
{
Text = pattern.EventArgs.IsEmpty
? "Didn't get that."
: $"{pattern.EventArgs}";
});
Observable.FromEventPattern <ICommand>(
RecognitionService,
nameof(RecognitionService.CommandReceived))
.Delay(TimeSpan.FromSeconds(3))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(_ =>
{
IsActive = IsStartedAgain;
Text = IsStartedAgain ? Text : string.Empty;
IsStartedAgain = false;
});
Close = ReactiveCommand.CreateFromTask(async cancellationToken =>
{
IsActive = false;
await RecognitionService.StopAsync(cancellationToken).ConfigureAwait(false);
}).WithDefaultCatch(this);
}
public static async Task Start5SecondsStart5SecondsStopTestAsync(
this RecognitionService service,
CancellationToken cancellationToken = default)
{
await service.StartAsync(cancellationToken);
await Task.Delay(TimeSpan.FromSeconds(5), cancellationToken);
await service.StartAsync(cancellationToken);
await Task.Delay(TimeSpan.FromSeconds(5), cancellationToken);
await service.StopAsync(cancellationToken);
}