// Apply Promotions mutually exclusive which will be called from user after fillling the cart
public decimal ApplyPromotionsAll(Dictionary <Product, int> productsInCart)
{
productsStock = new ProductStock();
promotionsList = new Dictionary <Promotion, decimal>();
Promotion prom1 = new Promotion("Applied All Promotions", promotionForAll);
return(prom1.afterPromotionApplied(productsInCart));
}
// Apply Promotions mutually exclusive which will be called from user after fillling the cart
public decimal ApplyPromotionsMutuallyExclusive(Dictionary <Product, int> productsInCart)
{
productsStock = new ProductStock();
promotionsList = new Dictionary <Promotion, decimal>();
Promotion prom1 = new Promotion("Promotion For Product A", promotionForProd_A);
Promotion prom2 = new Promotion("Promotion For Product B", promotionForProd_B);
Promotion prom3 = new Promotion("Promotion For Product C_D", promotionForProd_C_D);
//All promotions will be applied for cart individually
promotionsList.Add(prom1, prom1.afterPromotionApplied(productsInCart));
promotionsList.Add(prom2, prom2.afterPromotionApplied(productsInCart));
promotionsList.Add(prom3, prom3.afterPromotionApplied(productsInCart));
//The promotion which return minimum of cart values will be returned
return(promotionsList.Aggregate((l, r) => l.Value < r.Value ? l : r).Value);
}
