public override Discount GetDiscount(KeyValuePair <Product, double> productQuantity,
SupermarketCatalog catalog,
Offer offer)
{
Product product = productQuantity.Key;
double quantity = productQuantity.Value;
var quantityAsInt = (int)productQuantity.Value;
Discount discount = null;
if (quantityAsInt >= 2)
{
var total = offer.Argument
* (quantityAsInt / 2)
+ quantityAsInt % 2
* catalog.GetUnitPrice(product);
var discountN = catalog.GetUnitPrice(product)
* quantity - total;
discount = new Discount(product,
"2 for " + offer.Argument,
-discountN);
}
return(discount);
}
public override Discount GetDiscount(KeyValuePair <Product, double> productQuantity,
SupermarketCatalog catalog,
Offer offer)
{
Discount discount = null;
Product product = productQuantity.Key;
double quantity = productQuantity.Value;
var quantityAsInt = (int)quantity;
int numOfX = quantityAsInt / 3;
if (quantityAsInt > 2)
{
var discountAmount = quantity *
catalog.GetUnitPrice(product) -
(numOfX
* 2
* catalog.GetUnitPrice(product)
+ quantityAsInt % 3
* catalog.GetUnitPrice(product));
discount = new Discount(productQuantity.Key, "3 for 2", -discountAmount);
}
return(discount);
}
public override Discount GetDiscount(KeyValuePair <Product, double> productQuantity,
SupermarketCatalog catalog,
Offer offer)
{
Discount discount = null;
double quantity = productQuantity.Value;
Product product = productQuantity.Key;
if ((int)quantity >= 5)
{
int numOfX = (int)quantity / 5;
var discountTotal = catalog.GetUnitPrice(product)
* quantity
- (offer.Argument
* numOfX
+ (int)quantity
% 5
* catalog.GetUnitPrice(product));
discount = new Discount(product,
5 + " for " + offer.Argument,
-discountTotal);
}
return(discount);
}
public void HandleOffers(Receipt receipt, Dictionary <Product, Offer> offers, SupermarketCatalog catalog)
{
foreach (var p in _productQuantities.Keys)
{
var quantity = _productQuantities[p];
var quantityAsInt = (int)quantity;
if (offers.ContainsKey(p))
{
var offer = offers[p];
var unitPrice = catalog.GetUnitPrice(p);
Discount discount = null;
var x = 1;
if (offer.OfferType == SpecialOfferType.ThreeForTwo)
{
x = 3;
}
else if (offer.OfferType == SpecialOfferType.TwoForAmount)
{
x = 2;
if (quantityAsInt >= 2)
{
var total = offer.Argument * (quantityAsInt / x) + quantityAsInt % 2 * unitPrice;
var discountN = unitPrice * quantity - total;
discount = new Discount(p, "2 for " + offer.Argument, discountN);
}
}
if (offer.OfferType == SpecialOfferType.FiveForAmount)
{
x = 5;
}
var numberOfXs = quantityAsInt / x;
if (offer.OfferType == SpecialOfferType.ThreeForTwo && quantityAsInt > 2)
{
var discountAmount = quantity * unitPrice - (numberOfXs * 2 * unitPrice + quantityAsInt % 3 * unitPrice);
discount = new Discount(p, "3 for 2", discountAmount);
}
if (offer.OfferType == SpecialOfferType.TenPercentDiscount)
{
discount = new Discount(p, offer.Argument + "% off", quantity * unitPrice * offer.Argument / 100.0);
}
if (offer.OfferType == SpecialOfferType.FiveForAmount && quantityAsInt >= 5)
{
var discountTotal = unitPrice * quantity - (offer.Argument * numberOfXs + quantityAsInt % 5 * unitPrice);
discount = new Discount(p, x + " for " + offer.Argument, discountTotal);
}
if (discount != null)
{
receipt.AddDiscount(discount);
}
}
}
}
public override Discount GetDiscount(KeyValuePair <Product, double> productQuantity,
SupermarketCatalog catalog,
Offer offer)
{
double quantity = productQuantity.Value;
Product product = productQuantity.Key;
return(new Discount(product,
offer.Argument + "% off",
-quantity * catalog.GetUnitPrice(product) * offer.Argument / 100.0));
}
public virtual Discount GetDiscount(IDictionary <Product, double> quantitiesByProduct, SupermarketCatalog catalog)
{
if (!quantitiesByProduct.ContainsKey(_product))
{
return(null);
}
var unitPrice = catalog.GetUnitPrice(_product);
var quantity = quantitiesByProduct[_product];
return(_discounter.GetDiscount(_product, quantity, unitPrice));
}
public Receipt ChecksOutArticlesFrom(ShoppingCart theCart)
{
Receipt receipt = new Receipt();
List <ProductQuantity> productQuantities = theCart.GetItems();
foreach (var pq in productQuantities)
{
receipt.AddProduct(pq, _catalog.GetUnitPrice(pq.Product));
}
handleOffers(theCart.ProductQuantityPairs(), receipt);
return(receipt);
}
public Receipt ChecksOutArticlesFrom(ShoppingCart theCart)
{
var receipt = new Receipt();
var productQuantities = theCart.GetItems();
foreach (var pq in productQuantities)
{
var p = pq.Product;
var quantity = pq.Quantity;
var unitPrice = _catalog.GetUnitPrice(p);
var price = quantity * unitPrice;
receipt.AddProduct(p, quantity, unitPrice, price);
}
theCart.HandleOffers(receipt, _offers, _catalog);
return(receipt);
}