public void AddDiscount(ICategoryDiscount categoryDiscount)
{
if (categoryDiscount == null)
{
throw new ArgumentNullException("categoryDiscount cannot be null.");
}
_categoryDiscount = categoryDiscount;
}
private ICategoryDiscount CreateCategoryDiscount()
{
ICategoryDiscount categoryDiscount = null;
if (this.Product.Category == ProductCategory.Accessories)
{
categoryDiscount = new AccessoriesDiscount();
}
if (this.Product.Category == ProductCategory.Bikes)
{
categoryDiscount = new BikesDiscount();
}
if (this.Product.Category == ProductCategory.Cloathing)
{
categoryDiscount = new CloathingDiscount();
}
return(categoryDiscount);
}
