public TrackReporter(IObservable <Mix> currentMixObservable, IObservable <double> currentPositionObservable, IRequestExecutor requestExecutor)
{
this.requestExecutor = new RequestExecutionAdapter(requestExecutor);
IObservable <bool> reportingMarkReached = currentPositionObservable
.BufferWithCount(2, 1)
.Select(positions => (positions[0] < reportingMark && positions[1] > reportingMark));
currentMixObservable.Subscribe(mix =>
{
currentMix = mix;
});
ReactiveAsyncCommand reportTrack = new ReactiveAsyncCommand();
reportTrack.Subscribe(_ =>
{
int mixId = currentMix.MixId;
Track track = currentMix.GetCurrentTrack();
Report(track, mixId);
});
reportingMarkReached
.Where(x => x) // we crossed the mark
.Where(_ => !currentMix.GetCurrentTrack().IsReported) //it's not previously reported
.Subscribe(_ => reportTrack.Execute(null));
}
/// <summary>
/// Projects each value of an observable sequence into a buffer.
/// </summary>
public static IObservable <IList <TSource> > BufferWithCount <TSource>(this IObservable <TSource> source, int count)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (count <= 0)
{
throw new ArgumentOutOfRangeException("count");
}
return(source.BufferWithCount(count, count));
}
public static IObservable <IList <T> > Buffer <T>(this IObservable <T> source, int count)
{
return(source.BufferWithCount(count));
}
