/// <summary>
/// To create a Reactive Extension for candles end event.
/// </summary>
/// <param name="candleManager">The candles manager.</param>
/// <param name="series">Candles series to be traced for end of candle.</param>
/// <returns>Reactive Extension.</returns>
public static IObservable <Candle> RxWhenCandlesFinished(this ICandleManager candleManager, CandleSeries series)
{
if (series == null)
{
throw new ArgumentNullException(nameof(series));
}
return(candleManager.RxWhenCandles(series).Where(c => c.State == CandleStates.Finished));
}
