public RoundingPolicy(RoundingStrategy s = RoundingStrategy.Round, sbyte decimals = 2,
byte digit = 5, double step = 0.1)
{
Strategy = s;
this.decimals = validateDecimals(decimals);
this.digit = validateDigit(digit);
this.step = validateStep(step);
}
public RoundingPolicy(RoundingStrategy roundingStrategy, sbyte numberOfDigits) : this()
{
if (isRoundByStep(roundingStrategy))
{
return;
}
RoundingStrategy = roundingStrategy;
NumberOfDigits = numberOfDigits;
}
public RoundingPolicy(RoundingStrategy roundingStrategy, double roundingStep) : this()
{
if (!isRoundByStep(roundingStrategy))
{
return;
}
RoundingStrategy = roundingStrategy;
RoundingStep = roundingStep;
}
public RoundingPolicy(RoundingStrategy roundingStrategy, sbyte numberOfDigits, byte roundingDigit) : this()
{
if (roundingStrategy != RoundingStrategy.Round)
{
return;
}
RoundingStrategy = roundingStrategy;
NumberOfDigits = numberOfDigits;
RoundingDigit = roundingDigit;
}
private static void testRoundingPolicy(RoundingPolicy o,
RoundingStrategy roundingStrategy = RoundingStrategy.Round,
sbyte numberOfDigits = 2,
byte roundingDigit = 5,
double roundingStep = 0)
{
Assert.AreEqual(roundingStrategy, o.RoundingStrategy);
Assert.AreEqual(numberOfDigits, o.NumberOfDigits);
Assert.AreEqual(roundingDigit, o.RoundingDigit);
Assert.AreEqual(roundingStep, o.RoundingStep);
}
//TODO: this constructor is ONLY for unit tests - replace with a builder
public FundingStreamPeriodProfilePattern(string fundingPeriodId,
string fundingStreamId,
string fundingLineId,
DateTime fundingStreamPeriodStartDate,
DateTime fundingStreamPeriodEndDate,
bool allowUserToEditProfilePattern,
ProfilePeriodPattern[] profilePattern,
string profilePatternDisplayName,
string profilePatternDescription,
RoundingStrategy roundingStrategy)
{
FundingPeriodId = fundingPeriodId;
FundingStreamId = fundingStreamId;
FundingLineId = fundingLineId;
FundingStreamPeriodStartDate = fundingStreamPeriodStartDate;
FundingStreamPeriodEndDate = fundingStreamPeriodEndDate;
AllowUserToEditProfilePattern = allowUserToEditProfilePattern;
ProfilePattern = profilePattern;
ProfilePatternDisplayName = profilePatternDisplayName;
ProfilePatternDescription = profilePatternDescription;
RoundingStrategy = roundingStrategy;
}
internal static bool isRoundByStep(RoundingStrategy roundingStrategy)
{
return(roundingStrategy == RoundingStrategy.RoundDownByStep ||
roundingStrategy == RoundingStrategy.RoundUpByStep);
}
private IReadOnlyCollection <DeliveryProfilePeriod> ApplyProfilePattern(
decimal fundingValue,
IReadOnlyCollection <ProfilePeriodPattern> profilePattern,
IReadOnlyCollection <DeliveryProfilePeriod> profilePeriods,
RoundingStrategy roundingStrategy)
{
List <DeliveryProfilePeriod> calculatedDeliveryProfile = new List <DeliveryProfilePeriod>();
if (profilePeriods.Any())
{
decimal allocationValueToBeProfiled = Convert.ToDecimal(fundingValue);
decimal runningTotal = 0;
List <DeliveryProfilePeriod> profiledValues = profilePeriods.Select(pp =>
{
ProfilePeriodPattern profilePeriodPattern = profilePattern.Single(
pattern => string.Equals(pattern.Period, pp.TypeValue) &&
string.Equals(pattern.DistributionPeriod, pp.DistributionPeriod) &&
pattern.PeriodYear == pp.Year &&
pattern.Occurrence == pp.Occurrence);
decimal profilePercentage = profilePeriodPattern
.PeriodPatternPercentage;
decimal profiledValue = profilePercentage * allocationValueToBeProfiled;
if (profiledValue != 0)
{
profiledValue /= 100;
}
decimal roundedValue;
if (roundingStrategy == RoundingStrategy.RoundUp)
{
roundedValue = profiledValue
.RoundToDecimalPlaces(2)
.RoundToDecimalPlaces(0);
}
else
{
roundedValue = (int)profiledValue;
}
if (runningTotal + roundedValue > allocationValueToBeProfiled)
{
roundedValue = allocationValueToBeProfiled - runningTotal;
}
runningTotal += roundedValue;
return(pp.WithValue(roundedValue));
}).ToList();
DeliveryProfilePeriod last = profiledValues.Last();
IEnumerable <DeliveryProfilePeriod> withoutLast = profiledValues.Take(profiledValues.Count - 1).ToList();
calculatedDeliveryProfile.AddRange(
withoutLast.Append(
last.WithValue(allocationValueToBeProfiled - withoutLast.Sum(cdp => cdp.ProfileValue))));
}
return(calculatedDeliveryProfile);
}
private IReadOnlyCollection <DeliveryProfilePeriod> GetProfiledAllocationPeriodsWithPatternApplied(decimal fundingValue,
IReadOnlyCollection <ProfilePeriodPattern> profilePattern,
RoundingStrategy roundingStrategy)
{
IReadOnlyCollection <DeliveryProfilePeriod> allocationProfilePeriods =
GetProfilePeriodsForAllocation(profilePattern);
return(ApplyProfilePattern(fundingValue, profilePattern, allocationProfilePeriods, roundingStrategy));
}
public static Money Round(this Money money, RoundingMode roundingMode, DecimalPlaces decimalPlaces)
{
RoundingStrategy strategy = RoundingStrategyFactory.GetRoundingStrategy(roundingMode);
return(strategy.Round(money, (int)decimalPlaces));
}
