public BackChannelConnection(AlarmEventsService alarmEvents)
{
_alarmEvents = alarmEvents ?? throw new ArgumentNullException(nameof(alarmEvents));
_alarmEvents.AsObservable()
.Where(x => x.Type == AlarmEvent.EventType.SensorAlarm && x.Status)
.Subscribe(e =>
{
if (e.Numbers.FirstOrDefault() == 1)
{
Connect();
_isDuplexMode = false;
}
});
}
public AlarmRingerViewModel(AlarmEventsService alarmEvents)
{
_wavePlayer = new WaveOut();
var streamInfo = Application.GetResourceStream(new Uri("pack://application:,,,/Assets/DoorBell.mp3"));
_wavePlayer.Init(new LoopStream(new Mp3FileReader(streamInfo.Stream)));
ChangeActiveStateCommand = new RelayCommand <bool>(ChangeActiveState);
ChangeMutedStateCommand = new RelayCommand(ChangeMuteState);
alarmEvents.AsObservable()
.Where(x => x.Type == AlarmEvent.EventType.SensorAlarm && x.Status)
.Select(x => true)
.ObserveOnDispatcher(DispatcherPriority.Send)
.Subscribe(ChangeActiveState);
}
public IntercomViewModel(RtspDataService rtsp, AlarmEventsService alarmEvents)
{
_rtsp = rtsp ?? throw new ArgumentNullException(nameof(rtsp));
_backChannelConnection = new BackChannelConnection(alarmEvents);
IsDoorLocked = true;
IsActive = false;
ChangeLockStateCommand = new RelayCommand(ChangeLockState);
ChangeCallStateCommand = new RelayCommand(ChangeCallState);
alarmEvents.AsObservable()
.Where(x => x.Type == AlarmEvent.EventType.SensorAlarm && x.Status)
.ObserveOnDispatcher(DispatcherPriority.Send)
.Subscribe(e =>
{
IsActive = false;
_activeCall?.Dispose();
});
}
public IObservable <(bool Status, string Message)> UnlockDoor()
{
var isDuplexMode = _isDuplexMode;
if (_isDuplexMode)
{
Disconnect();
}
return(Observable
.FromAsync(UnlockDoorAsync)
.Select(response =>
{
if (!response.Status)
{
return Observable.Return(response);
}
else
{
return _alarmEvents.AsObservable()
.Where(x => x.Type == AlarmEvent.EventType.SensorOutAlarm && x.Status == false)
.Timeout(TimeSpan.FromSeconds(10))
.Select(x => (response.Status, response.Message))
.OnErrorResumeNext <(bool Status, string Message)>(Observable.Return((false, "Device is not healthy.")));
}
})
.Switch()
.OnErrorResumeNext <(bool Status, string Message)>(Observable.Return((false, "Unable to unlock door.")))
.Take(1)
.Do(_ =>
{
if (isDuplexMode)
{
Connect();
}
}));
}