private static IDictionary <string, Offer> LoadHardCodedOffers()
{
var offers = new Dictionary <string, Offer>();
var offer = new MultiBuyOffer("A99", 3, 1.3M);
offers.Add(offer.Sku, offer);
offer = new MultiBuyOffer("B15", 2, 0.45M);
offers.Add(offer.Sku, offer);
return(offers);
}
//TODO refactor into base service or the entity
private decimal CalculateMultiBuyOfferPrice(MultiBuyOffer offer, BasketItem basketItem)
{
var totalQuantity = basketItem.Quantity;
var quantityRequired = offer.QuantityRequired;
var offersMatched = totalQuantity / quantityRequired;
var remainder = totalQuantity % quantityRequired;
var offerPrice = offersMatched * offer.Price;
var unmatchingQuantity = remainder;
var nonOfferPrice = unmatchingQuantity * basketItem.Product.UnitPrice;
return(offerPrice + nonOfferPrice);
}
