public IShoppingBasket Process(IShoppingBasket shoppingBasket)
{
shoppingBasket.Total =
shoppingBasket.GetBasketItems().Sum(basketItem => basketItem.Product.Price * basketItem.Quantity);
return(shoppingBasket);
}
public IShoppingBasket Process(IShoppingBasket shoppingBasket)
{
if (!shoppingBasket.BogofOffers.Any())
{
return(shoppingBasket);
}
foreach (var basketItem in shoppingBasket.GetBasketItems())
{
if (basketItem.Quantity < 2)
{
continue;
}
if (shoppingBasket.BogofOffers.All(bogof => bogof.ProductCategory != basketItem.Product.ProductCategory))
{
continue;
}
var quantityTodrop = basketItem.Quantity / 2;
var bogofOfferDiscount = quantityTodrop * basketItem.Product.Price;
shoppingBasket.Total -= bogofOfferDiscount;
shoppingBasket.Messages.Add($"BOGOF discount £{bogofOfferDiscount} applied.");
}
return(shoppingBasket);
}
private static IShoppingBasket ValidateOfferVoucherForThreshold(IShoppingBasket shoppingBasket)
{
var basketsTotal = shoppingBasket.GetBasketItems().Where(x => x.Product.Category != Category.GiftVoucher).Sum(basketItem => basketItem.Product.Price * basketItem.Quantity);
if (basketsTotal < shoppingBasket.OfferVoucher.Threshold)
{
var additonalAmountToSpend = shoppingBasket.OfferVoucher.Threshold - basketsTotal + 0.01m;
shoppingBasket.Messages.Add($"You have not reached the spend threshold for voucher {shoppingBasket.OfferVoucher.Code}. Spend another £{additonalAmountToSpend} to receive £5.00 discount from your basket total.");
basketsTotal = shoppingBasket.Total;
}
shoppingBasket.Total = basketsTotal;
return(shoppingBasket);
}
public BasketServiceResponse GetBasketTotal(IShoppingBasket shoppingBasket)
{
try
{
if (!shoppingBasket.GetBasketItems().Any())
{
return new BasketServiceResponse()
{
Notifications = new List <string> {
"Your shopping basket is empty"
},
Success = true,
BasketTotal = 0.0m
}
}
;
_basketProcessors = CreateBasketProcessors();
foreach (var processor in _basketProcessors)
{
processor.Process(shoppingBasket);
}
// TODO: Use automapper for mapping Basket object to BasketServiceResponse object
return(new BasketServiceResponse
{
Notifications = shoppingBasket.Messages?.ToList(),
BasketTotal = shoppingBasket.Total,
Success = true
});
}
catch (Exception exception)
{
return(new BasketServiceResponse
{
ErrorMessage = $"Failed to calculate basket total {exception.Message}",
Success = false,
BasketTotal = 0.0m
});
}
}
private IShoppingBasket ValidateOfferVoucherForProducts(IShoppingBasket shoppingBasket)
{
var basketsTotal = 0.00m;
foreach (var basketItem in shoppingBasket.GetBasketItems())
{
if (basketItem.Product.Category == shoppingBasket.OfferVoucher.ProductCategory && !_isOfferApplied)
{
_isOfferApplied = true;
var productPrice = basketItem.Product.Price;
productPrice -= shoppingBasket.OfferVoucher.Value;
productPrice = productPrice >= 0 ? productPrice : 0m;
basketsTotal += productPrice;
}
else
{
basketsTotal += basketItem.Product.Price;
}
}
shoppingBasket.Total = basketsTotal;
return(shoppingBasket);
}