public Sentiment?GetSentimentForWidgets(HistoricalData historicalData)
{
Tuple <int?, int?> sentimentValues = GetSyrahSentimentTermValues(historicalData);
Sentiment? sentiment = SyrahSentiment.MakeInterpretationInTermsOfSentiment(sentimentValues);
return(sentiment);
}
public Tuple <int?, int?> GetSyrahSentimentTermValues(HistoricalData historicalData)
{
if (historicalData == null)
{
return(Tuple.Create((int?)null, (int?)null));
}
const int last = 1;
SyrahSentiment syrahLongTerm = new SyrahSentiment(SyrahSentiment.TermValue.LongTerm);
SyrahSentiment syrahShortTerm = new SyrahSentiment(SyrahSentiment.TermValue.ShortTerm);
List <IIndicator> indicators = new List <IIndicator>
{
syrahShortTerm,
syrahLongTerm
};
List <Signal> signals = GetSignalsFromDbAndViaCalculation(historicalData, indicators, last);
int?shortTermValue = GetTermValue(signals, syrahShortTerm);
int?longTermValue = GetTermValue(signals, syrahLongTerm);
Tuple <int?, int?> result = new Tuple <int?, int?>(shortTermValue, longTermValue);
return(result);
}
private static int?GetTermValue(IEnumerable <Signal> signals, SyrahSentiment syrahSentiment)
{
Signal longTermSignal = signals.LatestForIndicator(syrahSentiment);
int? termValue = longTermSignal != null
? (int?)longTermSignal.Value
: null;
return(termValue);
}
public Tuple <SignalInterpretation, SignalInterpretation> MakeInterpretationOfSyrahSentiments(Tuple <int?, int?> sentiments)
{
SignalInterpretation longTermInterpretation = null;
SignalInterpretation shortTermInterpretation = null;
SyrahSentiment syrahLongTerm = new SyrahSentiment(SyrahSentiment.TermValue.LongTerm);
SyrahSentiment syrahShortTerm = new SyrahSentiment(SyrahSentiment.TermValue.ShortTerm);
if (sentiments.Item2.HasValue)
{
longTermInterpretation = SyrahSentiment.MakeInterpretationBasedOnValue(syrahLongTerm, sentiments.Item2.Value);
}
if (sentiments.Item1.HasValue)
{
shortTermInterpretation = SyrahSentiment.MakeInterpretationBasedOnValue(syrahShortTerm, sentiments.Item1.Value);
}
return(Tuple.Create(shortTermInterpretation, longTermInterpretation));
}