public static void computePromotion1(PromotionType1 promotionType1, int customerOrder, bool isFirst, HashSet <char> skuIdSet)
{
if (customerOrder >= promotionType1.getTotalItems())
{
// Remove from the set as the promotion is applied on this skuId
if (skuIdSet.contains(promotionType1.getSkuId()))
{
skuIdSet.Remove(promotionType1.getSkuId());
}
totalPrice += promotionType1.getPrice();
customerOrder -= promotionType1.getTotalItems();
computePromotion1(promotionType1, customerOrder, false, skuIdSet);
}
else
{
if (isFirst)
{
return;
}
else
{
totalPrice += customerOrder * currentPrice.get(promotionType1.getSkuId());
}
}
}
public static void BuildPromotionType1Dict(char skuId, int totalItems, int price)
{
PromotionType1 promotionType1 = new PromotionType1();
promotionType1.skuID = skuId;
promotionType1.totalItems = totalItems;
promotionType1.price = price;
pt1.Add(skuId, promotionType1);
}
public static int CalculateTotalPrice(Dictionary <char, int> items)
{
// Prepare the set of SkudIds so that we can remove SkuIds from this set once the promotion is applied
HashSet <char> skuIdSet = new HashSet <char>();
foreach (KeyValuePair <char, int> key in items) // This is foreach loop
{
skuIdSet.Add(key);
}
// Apply promotion type 1
foreach (KeyValuePair <char, int> key in items) //iterating over map
{
if (pt1.containsKey(key))
{
PromotionType1 promotionType1 = pt1.key;
computePromotion1(promotionType1, items.get(key), true, skuIdSet);
}
}
// Apply promotion type 2
foreach (KeyValuePair <char, int> key in items)
{
if (skuIdSet.contains(key))
{
computePromotion2(skuIdSet, key, items);
}
}
// Remaining SkuIds where no promotion is applied
foreach (char ch in skuIdSet)
{
totalPrice += (items.get(ch) * currentPrice.get(ch));
}
return(totalPrice);
}
