internal static DiscountItem CalculateCartRuleDiscount(RenderContext context, PromotionRule rule, Cart cart)
{
if (rule == null || (rule.Percent == 1 && rule.Amount == 0))
{
return(null);
}
DiscountItem result = new DiscountItem();
var reasonobj = rule.GetValue(context.Culture);
if (reasonobj != null)
{
result.Reason = reasonobj.ToString();
}
decimal offprice = 0;
if (rule.Percent > 0 && rule.Percent <= 1)
{
offprice = cart.TotalAmount * rule.Percent;
}
if (rule.Amount > 0)
{
offprice = offprice + rule.Amount;
}
result.Discount = offprice;
result.CanCombine = rule.CanCombine;
return(result);
}
public static Discount CombineDiscountRules(Discount discount)
{
var exclusiveItems = discount.items.FindAll(o => o.CanCombine == false);
if (exclusiveItems != null && exclusiveItems.Any())
{
// rule one, remove other.
discount.items.RemoveAll(o => o.CanCombine);
DiscountItem highestvalue = null;
foreach (var item in discount.items)
{
if (highestvalue == null)
{
highestvalue = item;
}
else
{
if (highestvalue.Total < item.Total)
{
highestvalue = item;
}
}
}
discount.items.Clear();
if (highestvalue != null)
{
discount.items.Add(highestvalue);
}
}
return(discount);
}
internal static DiscountItem CalculateCartItemRuleDiscount(RenderContext context, PromotionRule rule, CartItem item)
{
if (rule == null || (rule.Percent == 1 && rule.Amount == 0))
{
return(null);
}
decimal offprice = 0;
if (rule.Percent > 0 && rule.Percent < 1)
{
offprice = item.UnitPrice * rule.Percent;
}
if (rule.Amount > 0)
{
offprice = offprice + rule.Amount;
}
if (offprice <= 0)
{
return(null);
}
DiscountItem result = new DiscountItem();
var reasonobj = rule.GetValue(context.Culture);
if (reasonobj != null)
{
result.Reason = reasonobj.ToString();
}
result.Discount = offprice;
result.RuleId = rule.Id;
result.Quantity = item.Quantity;
result.CanCombine = rule.CanCombine;
return(result);
}