public HistoryAnalysis Analyse(IReadOnlyCollection <Period> history)
{
HistoryAnalysis historyAnalysis = new HistoryAnalysis();
if (history != null && history.Any())
{
//Get Valid Periods
var validPeriods = history.Where(period => period.End.TimeOfDay > _analyserConfiguration.StartTime && period.Start.TimeOfDay < _analyserConfiguration.EndTime).OrderBy(x => x.Start);
List <PeriodAnalysis> periodAnalyses = new List <PeriodAnalysis>();
if (validPeriods != null && validPeriods.Any())
{
//Correct Valid periods
if (validPeriods.FirstOrDefault().Start.TimeOfDay < _analyserConfiguration.StartTime)
{
validPeriods.FirstOrDefault().Start = validPeriods.FirstOrDefault().Start.Add(_analyserConfiguration.StartTime - validPeriods.FirstOrDefault().Start.TimeOfDay);
}
if (validPeriods.LastOrDefault().End.TimeOfDay > _analyserConfiguration.EndTime)
{
validPeriods.LastOrDefault().End = validPeriods.LastOrDefault().End.Subtract(validPeriods.LastOrDefault().End.TimeOfDay - _analyserConfiguration.EndTime);
}
foreach (var period in validPeriods)
{
var periodAnalysis = new PeriodAnalysis();
periodAnalysis.StartTime = period.Start.TimeOfDay;
periodAnalysis.EndTime = period.End.TimeOfDay;
periodAnalysis.Duration = (decimal)(period.End - period.Start).TotalSeconds;
periodAnalysis.Rating = period.AverageSpeed > _analyserConfiguration.MaxSpeed ? 0 : period.AverageSpeed / _analyserConfiguration.MaxSpeed;
periodAnalyses.Add(periodAnalysis);
}
}
var analysedUndocumemdtedPeriods = AnalyseUndocumentedPeriods(validPeriods).ToList();
periodAnalyses = periodAnalyses.Concat(analysedUndocumemdtedPeriods).ToList();
periodAnalyses = periodAnalyses.OrderBy(item => item.StartTime).ToList();
ComputeDriverRating(historyAnalysis, periodAnalyses);
var analysedTimeSpan = periodAnalyses.Where(periodAnalysis => !periodAnalysis.IsUndocumented).Sum(periodAnalysis => periodAnalysis.Duration);
historyAnalysis.AnalysedDuration = new TimeSpan(0, 0, (int)analysedTimeSpan);
}
return(historyAnalysis);
}
/// <summary>
/// Initialzes period analysis data.
/// </summary>
/// <param name="history"></param>
/// <returns>List of PeriodAnalysis which is input for further calculations.</returns>
protected virtual List <PeriodAnalysis> InitializePeriodAnalysisData(IEnumerable <Period> history)
{
List <PeriodAnalysis> periodAnalysisList = new List <PeriodAnalysis>();
if (history == null || !history.Any())
{
return(periodAnalysisList);
}
foreach (var period in history)
{
PeriodAnalysis periodAnalysis = new PeriodAnalysis();
periodAnalysis.Start = period.Start;
periodAnalysis.End = period.End;
periodAnalysis.AverageSpeed = period.AverageSpeed;
//consider all periods as undocumented. Reset it on next calculations.
periodAnalysis.IsUndcoumentedPeriod = true;
periodAnalysisList.Add(periodAnalysis);
}
periodAnalysisList.OrderBy(x => x.Start);
return(periodAnalysisList);
}
