internal CurrencyRate GetCGSELevyCurrencyRate(Account account, Instrument instrument, CurrencyRate originCurrencyRate, ExecuteContext context)
{
if (this.CGSELevyCurrecyType == CGSELevyCurrecyType.UseInstrumentCurrencyType)
{
return(originCurrencyRate);
}
Guid sourceCurrencyId = account.CurrencyId;
Guid targetCurrencyId = account.IsMultiCurrency ? instrument.CurrencyId : account.CurrencyId;
return(!context.ShouldUseHistorySettings ? Setting.Default.GetCurrencyRate(sourceCurrencyId, targetCurrencyId)
: Setting.Default.GetCurrencyRate(sourceCurrencyId, targetCurrencyId, context.TradeDay));
}
internal decimal CalculateDiscount(decimal lot, decimal marketValue, AllowedPaymentForm paymentForm, CurrencyRate currencyRate)
{
if ((paymentForm & this.AllowedPaymentForms) != paymentForm || this.Details.Count == 0)
{
return(0);
}
if (this.Option == DiscountOption.Flat)
{
PhysicalPaymentDiscountPolicyDetail detail = this.Details.FindLast(delegate(PhysicalPaymentDiscountPolicyDetail item) { return(lot > item.From); });
decimal discount = 0;
if (detail != null)
{
if (this.DiscountBasis == DiscountBasis.UnitAmount)
{
discount = currencyRate.Exchange(lot * detail.DiscountValue);
}
else
{
discount = Math.Round(marketValue * detail.DiscountValue, currencyRate.TargetCurrency.Decimals, MidpointRounding.AwayFromZero);
}
}
return(discount);
}
else if (this.Option == DiscountOption.Progressive)
{
decimal discount = 0;
int index = 0;
while (index < this.Details.Count && lot > this.Details[index].From)
{
PhysicalPaymentDiscountPolicyDetail detail = this.Details[index];
decimal calculateLot = lot - detail.From;
if (index < this.Details.Count - 1)
{
decimal range = (this.Details[index + 1].From - detail.From);
calculateLot = Math.Min(calculateLot, range);
}
decimal calculateValue = (marketValue * calculateLot) / lot;
discount += this.DiscountBasis == DiscountBasis.UnitAmount ? calculateLot * detail.DiscountValue : calculateValue * detail.DiscountValue;
index++;
}
if (this.DiscountBasis == DiscountBasis.UnitAmount)
{
discount = currencyRate.Exchange(discount);
}
else
{
discount = Math.Round(discount, currencyRate.TargetCurrency.Decimals, MidpointRounding.AwayFromZero);
}
return(discount);
}
else
{
throw new NotSupportedException(string.Format("Option = {0} is not supported", this.Option));
}
}
