public static Money CalculateDefaultPriceReduction(Money originalPrice, int itemQuantity, IPromotionData data) {
Money priceReduction = null;
Money promotionPrice = new Money(originalPrice, 0);
promotionPrice.Amount = data.PromotionAmount;
promotionPrice.Multiply(itemQuantity);
switch (data.PromotionAmountType) {
case PromotionAmountType.PercentReduction:
if (data.PromotionAmount <= 100 && data.PromotionAmount > 0) {
priceReduction = new Money(originalPrice);
priceReduction.RoundingMode = RoundingMode.AlwaysRoundUp;
priceReduction.Multiply(data.PromotionAmount / 100);
} else {
priceReduction = originalPrice;
}
break;
case PromotionAmountType.AbsolutePrice:
priceReduction = new Money(originalPrice);
priceReduction.Subtract(promotionPrice);
break;
case PromotionAmountType.AbsoluteReduction:
priceReduction = promotionPrice;
break;
default:
LogManager.GetLogger(typeof(GenericPromotion)).Error("Unknown PromotionAmountType");
break;
}
return priceReduction;
}
public Money CalculatePriceReduction(IBasketLine basketLine) {
/*
* Buy N, get one free
* i.e. Buy 4, pay for 3
*/
try {
int quantity = basketLine.Quantity / (PromotionBase.AuxData + 1);
//See how many multiples we have
if (quantity * (PromotionBase.AuxData + 1) > basketLine.Quantity) {
quantity--;
}
if (quantity > 0) {
Money discount = new Money(basketLine.LinePrice);
discount.RoundingMode = RoundingMode.AlwaysRoundUp;
discount.Divide(basketLine.Quantity);
discount.Multiply(quantity);
return discount;
} else {
return new Money(0);
}
} catch (Exception e) {
LogManager.GetLogger(GetType()).Error(e);
return new Money(0);
}
}
public void TestRoundUp() {
Money money = new Money();
money.RoundingMode = RoundingMode.AlwaysRoundUp;
money.Amount = 1.111M;
Assert.IsTrue(money.Amount == 1.12M, "Round Up failed (" + money.ToString() + " != 1.12");
money.Amount = 2400;
money.Multiply(.175M);
Assert.IsTrue(money.Amount == 420M, "Round Up failed (" + money.ToString() + " != 420.00");
}
public void TestRoundPoint5() {
Money money = new Money();
money.RoundingMode = RoundingMode.RoundPoint5AndHigher;
money.Amount = 1.115M;
Assert.IsTrue(money.Amount == 1.12M, "Round To Point 5 failed (" + money.ToString() + " != 1.12");
money.Amount = 1.125M;
Assert.IsTrue(money.Amount == 1.13M, "Round To Point 5 failed (" + money.ToString() + " != 1.13");
money.Amount = 1.13495M;
Assert.IsTrue(money.Amount == 1.14M, "Round To Point 5 failed (" + money.ToString() + " != 1.14");
money.Amount = 453;
money.Add(new Money(36));
money.Add(new Money(10));
money.Multiply(0.175M);
Assert.IsTrue(money.Amount == 87.33M, "Round To Point 5 failed (" + money.ToString() + " != 87.33");
}
public void TestMultiply() {
Money money1 = new Money(1.23M);
money1.Multiply(1.5M);
Assert.IsTrue(money1.Amount == 1.84M, "Multiplication failed (" + money1.ToString() + " != 1.84");
}