public string print()
{
StringBuilder stringBuilder = new StringBuilder();
var campaignDiscount = getAvailableCampaign();
double couponDiscountPerProduct = getCouponDiscount();
if (couponDiscountPerProduct.CompareTo(0.0) != 0)
{
couponDiscountPerProduct = getCouponDiscount() / getNumberOfProducts();
}
var calculatedDiscounts = new Dictionary <string, double>();
var products = ShoppingCartItems.GroupBy(p => p.Key.Category.Title).ToDictionary(it => it.Key, it => it.ToList());
stringBuilder.AppendLine($"{"Category ",15} {"Product ",15} {"Quantity",15} {"Unit Price",15} {"Total Price",15} {"Total Discount For Campaign", 15} {"Total Discount For Coupon", 15}");
foreach (var item in products)
{
foreach (var p in item.Value)
{
stringBuilder.AppendLine($"{item.Key,15} {p.Key.Title,15} {p.Value,15} {p.Key.Price,15} {p.Value * p.Key.Price,15} {getAvailableCampaignDiscountByProduct(calculatedDiscounts,campaignDiscount,p.Key),15} {couponDiscountPerProduct, 15}\t");
}
}
stringBuilder.AppendLine($"Total Amount: {getTotalAmount()}");
stringBuilder.AppendLine($"Total Amount After Discounts: {getTotalAmountAfterDiscounts()}");
stringBuilder.AppendLine($"Delivery Cost: {getDeliveryCost()}");
return(stringBuilder.ToString());
}
public int getNumberOfDeliveries()
{
if (ShoppingCartItems == null)
{
throw new NullReferenceException("ShoppingCartItems is Null");
}
return(ShoppingCartItems.GroupBy(it => it.Key.Category.Title).Count());;
}