public override int Compare(IReadOnlyParcel a, IReadOnlyParcel b)
{
var discountAppliesA = (CgtUtils.CgtMethodForParcel(a.AquisitionDate, _DisposalDate) == CgtMethod.Discount);
var discountAppliesB = (CgtUtils.CgtMethodForParcel(b.AquisitionDate, _DisposalDate) == CgtMethod.Discount);
if (discountAppliesA && !discountAppliesB)
{
return(-1);
}
else if (discountAppliesB && !discountAppliesA)
{
return(1);
}
else
{
decimal unitCostBaseA = a.Properties[_DisposalDate].CostBase / a.Properties[_DisposalDate].Units;
decimal unitCostBaseB = b.Properties[_DisposalDate].CostBase / b.Properties[_DisposalDate].Units;
if (unitCostBaseA > unitCostBaseB)
{
return(-1);
}
else if (unitCostBaseA < unitCostBaseB)
{
return(1);
}
else
{
return(a.AquisitionDate.CompareTo(b.AquisitionDate));
}
}
}
public ParcelSold CalculateParcelCgt(IReadOnlyParcel parcel, Date disposalDate, int unitsSold, decimal amountReceived)
{
decimal costBase;
var properties = parcel.Properties[disposalDate];
if (unitsSold == properties.Units)
{
costBase = properties.CostBase;
}
else
{
costBase = (properties.CostBase * ((decimal)unitsSold / properties.Units)).ToCurrency(RoundingRule.Round);
}
var capitalGain = amountReceived - costBase;
var cgtMethod = CgtUtils.CgtMethodForParcel(parcel.AquisitionDate, disposalDate);
var discountedGain = CgtUtils.DiscountedCgt(capitalGain, cgtMethod);
return(new ParcelSold(parcel, unitsSold, costBase, amountReceived, capitalGain, cgtMethod, discountedGain));
}
