public Basket(EDiscountType discountType)
{
_products = new List <Product>();
// Here the discount strategy is defined, according to a desired kind of discount type.
_discountStrategy = DiscountStrategyFactory.DiscountStrategyFor(discountType);
}
/// <summary>
/// Defines a discount type to be applied over all products of basket.
/// </summary>
/// <param name="discountType">Discount type which will be applied over the products list.</param>
public void SetDiscountType(EDiscountType discountType)
{
_discountStrategy = DiscountStrategyFactory.DiscountStrategyFor(discountType);
}