protected SoundPlayerViewModelBase(string displayName, string groupName)
{
DisplayName = displayName;
GroupName = groupName;
IsWave = groupName == SoundMachineViewModel.GenWaveGroup;
var isPlayingChanged = this.WhenAnyValue(x => x.IsPlaying);
var canPlay = isPlayingChanged.Select(isPlaying => !isPlaying);
var canStop = isPlayingChanged.Select(IsPlaying => IsPlaying);
canPlay.ToProperty(this, nameof(IsLoopedEnabled), out _isLoopedEnabled)
.DisposeWith(Disposables);
PlayCommand = ReactiveCommand.Create(ExecutePlay, canPlay);
StopCommand = ReactiveCommand.Create(ExecuteStop, canStop);
PlayCommand.ObserveOn(RxApp.MainThreadScheduler)
.Do(_ => IsPlaying = true)
.Subscribe();
StopCommand.ObserveOn(RxApp.MainThreadScheduler)
.Do(_ => IsPlaying = false)
.Subscribe();
this.WhenAnyValue(x => x.Duration, x => x.IsPlaying, x => x.IsLooped,
(duration, isPlaying, isLooped) => (duration, isPlaying, isLooped))
.Where(x => x.duration > 0 && x.isPlaying && !x.isLooped)
.Select(x => Observable.Timer(TimeSpan.FromSeconds(x.duration)))
.Switch()
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(_ => IsPlaying = false)
.DisposeWith(Disposables);
}
