// Apply promotions on the the sales
float applyPromotionCoupon(PromotionCoupon promotions, Dictionary <string, int> SaleInvoice)
{
if (promotions.productCoupon.Count == 1) // for Single coupon
{
var key = promotions.productCoupon.ElementAt(0).Key;
if (SaleInvoice.ContainsKey(key))
{
int quantityInvoice = SaleInvoice[key];
int offerQuantity = promotions.productCoupon[key];
int offerscount = quantityInvoice / offerQuantity;
int remainingQuantity = quantityInvoice % offerQuantity;
SaleInvoice[key] = remainingQuantity;
return(offerscount * promotions.discountPrice);
}
}
else
{ // multi product coupon, considered for 2 products combination with AND operation
var key1 = promotions.productCoupon.ElementAt(0).Key;
var key2 = promotions.productCoupon.ElementAt(1).Key;;
if (SaleInvoice.ContainsKey(key1) && SaleInvoice.ContainsKey(key2))
{
int quantityInvoice1 = SaleInvoice[key1];
int offerQuantity1 = promotions.productCoupon[key1];
int offerscount1 = quantityInvoice1 / offerQuantity1;
int remainingQuantity1 = quantityInvoice1 % offerQuantity1;
int quantityInvoice2 = SaleInvoice[key2];
int offerQuantity2 = promotions.productCoupon[key2];
int offerscount2 = quantityInvoice2 / offerQuantity2;
int remainingQuantity2 = quantityInvoice2 % offerQuantity2;
if (offerscount1 <= offerscount2) // consider combo offer
{
SaleInvoice[key1] = remainingQuantity1;
SaleInvoice[key2] = remainingQuantity2 + (offerQuantity2 * (offerscount2 - offerscount1));
return(offerscount1 * promotions.discountPrice);
}
else
{
SaleInvoice[key1] = remainingQuantity1 + (offerQuantity1 * (offerscount1 - offerscount2));
SaleInvoice[key2] = remainingQuantity2;
return(offerscount2 * promotions.discountPrice);
}
}
}
return(0);
}
public PromotionsOfferRules()
{
PromotionCoupon A = new PromotionCoupon();
A.productCoupon.Add("A", 3);
A.discountPrice = 130;
list_of_promotions_rules.Add(A);
PromotionCoupon B = new PromotionCoupon();
B.productCoupon.Add("B", 2);
B.discountPrice = 45;
list_of_promotions_rules.Add(B);
PromotionCoupon CD = new PromotionCoupon();
CD.productCoupon.Add("C", 1);
CD.productCoupon.Add("D", 1);
CD.discountPrice = 30;
list_of_promotions_rules.Add(CD);
}
