private SimpleUnrealisedGainsResponse GetCapitalGains(IEnumerable <IReadOnlyHolding> holdings, Date date)
{
var response = new SimpleUnrealisedGainsResponse();
foreach (var holding in holdings)
{
foreach (var parcel in holding.Parcels(date))
{
var properties = parcel.Properties[date];
var value = properties.Units * holding.Stock.GetPrice(date);
var capitalGain = value - properties.CostBase;
var discountMethod = CgtUtils.CgtMethodForParcel(parcel.AquisitionDate, date);
var discoutedGain = (discountMethod == Domain.Portfolios.CgtMethod.Discount) ? CgtUtils.DiscountedCgt(capitalGain, Domain.Portfolios.CgtMethod.Discount) : capitalGain;
var unrealisedGain = new SimpleUnrealisedGainsItem()
{
Stock = holding.Stock.ToSummaryResponse(date),
AquisitionDate = parcel.AquisitionDate,
Units = properties.Units,
CostBase = properties.CostBase,
MarketValue = value,
CapitalGain = capitalGain,
DiscoutedGain = discoutedGain,
DiscountMethod = discountMethod.ToResponse()
};
response.UnrealisedGains.Add(unrealisedGain);
}
}
return(response);
}
public void CgtMethodCalculation(Date aquisitionDate, CgtMethod method, string reason)
{
var saleDate = new Date(2020, 01, 01);
var cgtMethod = CgtUtils.CgtMethodForParcel(aquisitionDate, saleDate);
cgtMethod.Should().Be(method, reason);
}
private DetailedUnrealisedGainsResponse GetDetailedCapitalGains(IEnumerable <IReadOnlyHolding> holdings, Date date)
{
var response = new DetailedUnrealisedGainsResponse();
foreach (var holding in holdings)
{
foreach (var parcel in holding.Parcels(date))
{
var properties = parcel.Properties[date];
var value = properties.Units * holding.Stock.GetPrice(date);
var capitalGain = value - properties.CostBase;
var discountMethod = CgtUtils.CgtMethodForParcel(parcel.AquisitionDate, date);
var discoutedGain = (discountMethod == Domain.Portfolios.CgtMethod.Discount) ? CgtUtils.DiscountedCgt(capitalGain, Domain.Portfolios.CgtMethod.Discount) : capitalGain;
var unrealisedGain = new DetailedUnrealisedGainsItem()
{
Stock = holding.Stock.ToSummaryResponse(date),
AquisitionDate = parcel.AquisitionDate,
Units = properties.Units,
CostBase = properties.CostBase,
MarketValue = value,
CapitalGain = capitalGain,
DiscoutedGain = discoutedGain,
DiscountMethod = discountMethod.ToResponse()
};
int units = 0;
decimal costBase = 0.00m;
foreach (var auditRecord in parcel.Audit.TakeWhile(x => x.Date <= date))
{
units += auditRecord.UnitCountChange;
costBase += auditRecord.CostBaseChange;
var cgtEvent = new DetailedUnrealisedGainsItem.CGTEventItem()
{
Date = auditRecord.Date,
Description = auditRecord.Transaction.Description,
UnitChange = auditRecord.UnitCountChange,
Units = units,
CostBaseChange = auditRecord.CostBaseChange,
CostBase = costBase,
};
unrealisedGain.CGTEvents.Add(cgtEvent);
}
response.UnrealisedGains.Add(unrealisedGain);
}
}
return(response);
}
public void DiscountedCgtCalculationZeroAmount()
{
var discountedGain = CgtUtils.DiscountedCgt(0.00m, CgtMethod.Discount);
discountedGain.Should().Be(0.00m);
}
public void DiscountedCgtCalculationNegativeAmount()
{
var discountedGain = CgtUtils.DiscountedCgt(-1000.00m, CgtMethod.Discount);
discountedGain.Should().Be(-1000.00m);
}
