static void Main(string[] args)
{
int[] promotedBookIds = { 1, 2, 3, 4, 5 };
var buyingBasket = new BuyingBasket
{
Items = new List <BuyingItem>
{
new BuyingItem {
BookId = 1, Quantity = 100
},
new BuyingItem {
BookId = 2, Quantity = 100
},
new BuyingItem {
BookId = 3, Quantity = 1
},
new BuyingItem {
BookId = 4, Quantity = 50
},
new BuyingItem {
BookId = 5, Quantity = 50
}
}
};
var bookPromotionCompaign = new HarryPotterPromotionCompaign(promotedBookIds);
var calculator = new BookCalculatorService(bookPromotionCompaign, buyingBasket);
var buyingCombinations = calculator.Calc();
var sum = 0.0M;
if (buyingCombinations != null)
{
foreach (var combination in buyingCombinations)
{
foreach (var buyingSet in combination.Items)
{
Console.WriteLine("Buying Set: ");
var details = buyingSet.Items.Select(buyingItem => string.Format("({0} x {1})", buyingItem.BookId, buyingItem.Quantity)).Aggregate("", (current, info) => current + info);
Console.WriteLine(details);
}
sum += combination.GetTotal();
Console.WriteLine(combination.GetTotal());
}
}
Console.WriteLine("Total {0}", sum);
Console.ReadLine();
}
public BookCalculatorService(IPromotionCompaign promotionCompaign, BuyingBasket buyingBasket)
{
this.promotionCompaign = promotionCompaign;
this.buyingBasket = buyingBasket;
}