public SessionSummaryDto GetSummary(SessionSummaryRequestDto sessionSummaryRequestDto)
{
var requestedUnitIsMetric = sessionSummaryRequestDto.Unit == 0;
var sessionData = _context.SessionData.Where(s => s.SessionId == sessionSummaryRequestDto.SessionId).ToList();
var session = _context.Sessions.Single(s => s.Id == sessionSummaryRequestDto.SessionId);
var sModeIsMetric = session.SMode.ToString("D9").IsMetric(); // pad int to 9 decimals if zero
var totalCount = sessionData.Count();
double maximumSpeed;
double averageSpeed;
double totalDistance;
double averageAltitude;
double maximumAltitude;
if (requestedUnitIsMetric) // return metric values
{
if (sModeIsMetric)
{
// calculate speed - divided speed by 10 as speed is *10 in file
var totalSpeed = sessionData.Sum(s => s.Speed);
averageSpeed = Math.Round((totalSpeed / 10) / totalCount, 2, MidpointRounding.AwayFromZero);
maximumSpeed = Math.Round(sessionData.MaxBy(s => s.Speed).Speed / 10, 2, MidpointRounding.AwayFromZero);
// calculate distance
var totalTimeInHours = session.Length.TimeOfDay.TotalSeconds / 3600;
totalDistance = Math.Round(averageSpeed * totalTimeInHours, 2, MidpointRounding.AwayFromZero);
// calculate altitiude
var totalAltitude = sessionData.Sum(s => s.Altitude / 10);
averageAltitude = Math.Round(totalAltitude / totalCount, 2, MidpointRounding.AwayFromZero);
maximumAltitude = Math.Round(sessionData.MaxBy(s => s.Altitude).Altitude / 10, 2, MidpointRounding.AwayFromZero);
}
else
{
// calculate speed - divided speed by 10 as speed is *10 in file - converted kilometres to miles
var totalSpeed = sessionData.Sum(s => s.Speed);
averageSpeed = ((totalSpeed / 10) / totalCount).ConvertToKilometres();
maximumSpeed = (sessionData.MaxBy(s => s.Speed).Speed / 10).ConvertToKilometres();
// calculate distance
var totalTimeInHours = session.Length.TimeOfDay.TotalSeconds / 3600;
totalDistance = ((totalSpeed / 10) / totalCount * totalTimeInHours).ConvertToKilometres();
// calculate altitiude - convert metres to feet
var totalAltitude = sessionData.Sum(s => s.Altitude / 10);
averageAltitude = (totalAltitude / totalCount).ConvertToMetres();
maximumAltitude = (sessionData.MaxBy(s => s.Altitude).Altitude / 10).ConvertToMetres();
}
}
else // return imperial values
{
if (sModeIsMetric)
{
// calculate speed - divided speed by 10 as speed is *10 in file - converted kilometres to miles
var totalSpeed = sessionData.Sum(s => s.Speed);
averageSpeed = ((totalSpeed / 10) / totalCount).ConvertToMiles();
maximumSpeed = (sessionData.MaxBy(s => s.Speed).Speed / 10).ConvertToMiles();
// calculate distance
var totalTimeInHours = session.Length.TimeOfDay.TotalSeconds / 3600;
totalDistance = ((totalSpeed / 10) / totalCount * totalTimeInHours).ConvertToMiles();
// calculate altitiude - convert metres to feet
var totalAltitude = sessionData.Sum(s => s.Altitude / 10);
averageAltitude = (totalAltitude / totalCount).ConvertToFeet();
maximumAltitude = (sessionData.MaxBy(s => s.Altitude).Altitude / 10).ConvertToFeet();
}
else
{
// calculate speed - divided speed by 10 as speed is *10 in file
var totalSpeed = sessionData.Sum(s => s.Speed);
averageSpeed = Math.Round((totalSpeed / 10) / totalCount, 2, MidpointRounding.AwayFromZero);
maximumSpeed = Math.Round(
sessionData.MaxBy(s => s.Speed).Speed / 10, 2, MidpointRounding.AwayFromZero);
// calculate distance
var totalTimeInHours = session.Length.TimeOfDay.TotalSeconds / 3600;
totalDistance = Math.Round(averageSpeed * totalTimeInHours, 2, MidpointRounding.AwayFromZero);
// calculate altitiude
var totalAltitude = sessionData.Sum(s => s.Altitude / 10);
averageAltitude = Math.Round(totalAltitude / totalCount, 2, MidpointRounding.AwayFromZero);
maximumAltitude = Math.Round(sessionData.MaxBy(s => s.Altitude).Altitude / 10, 2, MidpointRounding.AwayFromZero);
}
}
// calculate heart rate
var totalHeartRate = sessionData.Sum(s => s.HeartRate);
var averageHeartRate = Math.Round(totalHeartRate / totalCount, 2, MidpointRounding.AwayFromZero);
var minimumHeartRate = sessionData.MinBy(s => s.HeartRate).HeartRate;
var maximumHeartRate = sessionData.MaxBy(s => s.HeartRate).HeartRate;
// calculate power
var totalPower = sessionData.Sum(s => s.Power);
var averagePower = Math.Round(totalPower / totalCount, 2, MidpointRounding.AwayFromZero);
var maximumPower = Math.Round(sessionData.MaxBy(s => s.Power).Power, 2, MidpointRounding.AwayFromZero);
// calculate cadence
var totalCadence = sessionData.Sum(s => s.Cadence);
var averageCadence = Math.Round(totalCadence / totalCount, 2, MidpointRounding.AwayFromZero);
var maximumCadence = Math.Round(sessionData.MaxBy(s => s.Cadence).Cadence, 2, MidpointRounding.AwayFromZero);
// calculate normalized power
var sessionDto = GetSingle(sessionSummaryRequestDto.SessionId);
var normalizedPower = sessionDto.CalculateNormalizedPower();
// calculate intensity factor
var functionalThresholdPower = _context.Athletes.Single(a => a.Id == session.AthleteId).FunctionalThresholdPower;
var intensityFactor = normalizedPower.CalculateIntensityFactor(functionalThresholdPower);
// calculate training stress score
var sessionTimeInSeconds = session.Length.TimeOfDay.TotalSeconds;
double trainingStressScore = 0;
string trainingStressScoreStatus = "";
if (normalizedPower != 0)
{
trainingStressScore = Metrics.CalculateTrainingStressScore(sessionTimeInSeconds, normalizedPower, intensityFactor, functionalThresholdPower);
trainingStressScoreStatus = Metrics.TrainingStressScoreStatus(trainingStressScore);
}
var sessionSummaryDto = new SessionSummaryDto()
{
Title = session.Title,
AverageAltitude = averageAltitude,
MaximumAltitude = maximumAltitude,
AverageCadence = averageCadence,
MaximumCadence = maximumCadence,
AverageHeartRate = averageHeartRate,
MinimumHeartRate = minimumHeartRate,
MaximumHeartRate = maximumHeartRate,
AverageSpeed = averageSpeed,
MaximumSpeed = maximumSpeed,
AveragePower = averagePower,
MaximumPower = maximumPower,
TotalDistance = totalDistance,
Date = session.Date,
NormalizedPower = normalizedPower,
IntensityFactor = intensityFactor,
TrainingStressScore = trainingStressScore,
TrainingStressScoreStatus = trainingStressScoreStatus,
SessionId = sessionSummaryRequestDto.SessionId
};
return sessionSummaryDto;
}
public void CorrectDistanceIsCalculated()
{
var sessionSummaryRequestDtoMetric = new SessionSummaryRequestDto() { SessionId = 1, Unit = 0 };
var sessionSummaryRequestDtoImperial = new SessionSummaryRequestDto() { SessionId = 2, Unit = 0 };
var sessionSummaryMetric = _sessionRepository.GetSummary(sessionSummaryRequestDtoMetric);
var sessionSummaryImperial = _sessionRepository.GetSummary(sessionSummaryRequestDtoImperial);
var totalDistanceKilometres = sessionSummaryMetric.TotalDistance;
var totalDistanceMiles = sessionSummaryImperial.TotalDistance;
Assert.AreEqual(36.66, totalDistanceKilometres);
Assert.AreEqual(64.43m, totalDistanceMiles);
}
public void CorrectMinimumValuesAreFound()
{
var sessionSummaryRequestDto = new SessionSummaryRequestDto() { SessionId = 1, Unit = 0 };
var sessionSummary = _sessionRepository.GetSummary(sessionSummaryRequestDto);
var minimumHeartRate = sessionSummary.MinimumHeartRate;
Assert.AreEqual(125, minimumHeartRate);
}
public void CorrectMaximumValuesAreFound()
{
var sessionSummaryRequestDto = new SessionSummaryRequestDto() { SessionId = 1, Unit = 0 };
var sessionSummary = _sessionRepository.GetSummary(sessionSummaryRequestDto);
var maximumSpeed = sessionSummary.MaximumSpeed;
var maximumHeatRate = sessionSummary.MaximumHeartRate;
var maximumAltitude = sessionSummary.MaximumAltitude;
var maximumPower = sessionSummary.MaximumPower;
Assert.AreEqual(33.8m, maximumSpeed);
Assert.AreEqual(145, maximumHeatRate);
Assert.AreEqual(3.3, maximumAltitude);
Assert.AreEqual(837, maximumPower);
}
public void CorrectAveragesAreCalculated()
{
var sessionSummaryRequestDto = new SessionSummaryRequestDto() { SessionId = 1, Unit = 0 };
var sessionSummary = _sessionRepository.GetSummary(sessionSummaryRequestDto);
var averageSpeed = sessionSummary.AverageSpeed;
var averageHeatRate = sessionSummary.AverageHeartRate;
var averageAltitude = sessionSummary.AverageAltitude;
var averagePower = sessionSummary.AveragePower;
Assert.AreEqual(29.58m, averageSpeed);
Assert.AreEqual(134.17, averageHeatRate);
Assert.AreEqual(3.22d, averageAltitude);
Assert.AreEqual(601.17m, averagePower);
}
public HttpResponseMessage GetSummary(HttpRequestMessage request, SessionSummaryRequestDto sessionSummaryRequestDto)
{
return CreateHttpResponse(request, () =>
{
var sessionSummaryDto = _sessionRepository.GetSummary(sessionSummaryRequestDto);
HttpResponseMessage response = request.CreateResponse(HttpStatusCode.OK, sessionSummaryDto);
return response;
});
}
