public void Execute(IRuleExecutionContext context)
{
var commerceContext = context.Fact <CommerceContext>(null);
var cart = commerceContext?.GetObject <Cart>();
var totals = commerceContext?.GetObject <CartTotals>();
if (cart == null || !cart.Lines.Any() || totals == null || !totals.Lines.Any() || SubtotalOperator == null || Subtotal == null || PercentOff == null)
{
return;
}
var percentOff = PercentOff.Yield(context);
if (percentOff == 0)
{
return;
}
var matches = this.MatchingLines(context);
if (matches == null || !matches.Any())
{
return;
}
var list = matches.Where(l =>
SubtotalOperator.Evaluate(l.Totals.SubTotal.Amount, Subtotal.Yield(context)) &&
l.Quantity != decimal.Zero).ToList();
if (!list.Any())
{
return;
}
var className = this.GetType().Name;
var propertiesModel = commerceContext.GetObject <PropertiesModel>();
var discountAdjustmentType = commerceContext.GetPolicy <KnownCartAdjustmentTypesPolicy>().Discount;
foreach (var line in list)
{
var discountAmount = percentOff * 0.01M * totals.Lines[line.Id].SubTotal.Amount;
if (commerceContext.GetPolicy <GlobalPricingPolicy>().ShouldRoundPriceCalc)
{
discountAmount = decimal.Round(discountAmount, commerceContext.GetPolicy <GlobalPricingPolicy>().RoundDigits, commerceContext.GetPolicy <GlobalPricingPolicy>().MidPointRoundUp ? MidpointRounding.AwayFromZero : MidpointRounding.ToEven);
}
discountAmount *= decimal.MinusOne;
line.Adjustments.Add(new CartLineLevelAwardedAdjustment()
{
Name = (propertiesModel?.GetPropertyValue("PromotionText") as string ?? discountAdjustmentType),
DisplayName = (propertiesModel?.GetPropertyValue("PromotionCartText") as string ?? discountAdjustmentType),
Adjustment = new Money(commerceContext.CurrentCurrency(), discountAmount),
AdjustmentType = discountAdjustmentType,
IsTaxable = false,
AwardingBlock = className
});
totals.Lines[line.Id].SubTotal.Amount = totals.Lines[line.Id].SubTotal.Amount + discountAmount;
line.GetComponent <MessagesComponent>().AddMessage(commerceContext.GetPolicy <KnownMessageCodePolicy>().Promotions, string.Format("PromotionApplied: {0}", propertiesModel?.GetPropertyValue("PromotionId") ?? className));
}
;
}