static void Main(string[] args)
{
Console.WriteLine("######################## Sample Promotion Engine Implementation ####################################");
// Setting up Dependency Injection
var serviceProvider = new ServiceCollection()
.AddSingleton <IPromotionCalculationManager, PromotionCalculationManager>()
.BuildServiceProvider();
var promotionCalculationManager = serviceProvider.GetService <IPromotionCalculationManager>();
SalesProductsLineItems salesProductsLineItems = new SalesProductsLineItems();
salesProductsLineItems.SalesProductDetails.Add("A", 3);
salesProductsLineItems.SalesProductDetails.Add("B", 5);
salesProductsLineItems.SalesProductDetails.Add("C", 2);
salesProductsLineItems.SalesProductDetails.Add("D", 2);
Console.WriteLine("Product List:");
foreach (var product in salesProductsLineItems.SalesProductDetails)
{
Console.WriteLine("Product Name: {0} => Product Count: {1}", product.Key, product.Value);
}
try
{
var promotionalPrice = promotionCalculationManager.ApplyPromotion(salesProductsLineItems).Result;
Console.WriteLine("Total Price (With Promotion Applied): " + promotionalPrice);
Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine("Exception During Applying Promotion. Exception: " + ex.ToString());
}
}
public void Senario_B_Unit_Test()
{
// Arrange
SalesProductsLineItems salesProductsLineItems = new SalesProductsLineItems();
salesProductsLineItems.SalesProductDetails.Add("A", 5);
salesProductsLineItems.SalesProductDetails.Add("B", 5);
salesProductsLineItems.SalesProductDetails.Add("C", 1);
var promotionCalculationManager = new PromotionCalculationManager();
// Act
var promotionalPrice = promotionCalculationManager.ApplyPromotion(salesProductsLineItems).Result;
// Assert
promotionalPrice.Should().Be(370);
}
public async Task <float> ApplyPromotion(SalesProductsLineItems salesProductsLineItems)
{
ProductsList products = new ProductsList();
PromotionsOfferRules promotions = new PromotionsOfferRules();
Console.WriteLine("Total Price (Without Promotions): " + GetTotalPrice(salesProductsLineItems.SalesProductDetails));
float promotionsDiscountOffers = 0;
// Get The Promotional Dicount Price
foreach (var promotion in promotions.promotionsRulesList)
{
var discountPrice = GetPromotionCouponDiscountPrice(promotion, salesProductsLineItems.SalesProductDetails);
promotionsDiscountOffers = promotionsDiscountOffers + discountPrice;
}
float totalPrice = GetTotalPrice(salesProductsLineItems.SalesProductDetails);
var promotionalPrice = promotionsDiscountOffers + totalPrice;
return(await Task.FromResult(promotionalPrice));
}
