private int GetCountOf(BoughtProducts boughtProducts, string productName)
{
var product = _repository.FindBy(productName);
Guard.Operation(product != null, "Repository error: null reference received");
return(boughtProducts.CountOf(product));
}
public IReadOnlyList <AppliedDiscount> Calculate(BoughtProducts boughtProducts)
{
int firstProductCount = GetCountOf(boughtProducts, FirstProductName);
int secondProductCount = GetCountOf(boughtProducts, SecondProductName);
int discountAmount = Math.Min(firstProductCount, secondProductCount);
var appliedDiscount = new AppliedDiscount(DiscountName, -discountAmount * CombinedDiscount);
return(new List <AppliedDiscount>()
{
appliedDiscount
});
}
public void BuyProduct(int index)
{
Product prod = AvailableProducts[index];
if (prod.Price > Balance)
{
Console.Clear();
Console.WriteLine("You need to insert more money");
Console.ReadLine();
InsertMoney();
}
else
{
Balance = Balance - prod.Price;
BoughtProducts.Add(prod);
ProdSum.Add(prod.Price);
}
}
public IReadOnlyList <AppliedDiscount> Calculate(BoughtProducts boughtProducts)
{
var productGroups = boughtProducts.GroupedByProduct;
return(productGroups.Where(g => g.Value >= VolumeThreshold).Select(CreateAppliedDiscount).ToList());
}
internal IReadOnlyList <AppliedDiscount> CalculateDiscounts(BoughtProducts boughtProducts) => _discounts.SelectMany(d => d.Calculate(boughtProducts)).ToList();
