public static IDiscount Create(IMarketingCampaign campaign, IMoney money)
{
if (campaign.IsCrazySalesDay())
{
return(new DiscountCrazySalesDay());
}
if (money.IsMoreThanOneThousand())
{
return(new DiscountOneThousand());
}
if (money.IsMoreThanOneHundred() && campaign.IsActive())
{
return(new DiscountOneHundred());
}
return(new DiscountNoDiscount());
}