public void CalculateTotal() { CartItems.ForEach(x => { TotalAmount += Pricing.Price(x.Key) * x.Count; }); }
public void HandlePromoDiscount(PromotionRule rule) { var promoPrice = Pricing.PromoPrice(rule.Code); TotalAmount += promoPrice; Details[_seqeuence] = new Tuple <string, string>($"{rule.Code}", $"Promo Price :{promoPrice} | Total Amount : {TotalAmount}"); _seqeuence++; }