public decimal GetItemDiscountPrice(Item item, Price lowestPrice, Hashtable tags = null)
{
var price = lowestPrice.Sale ?? lowestPrice.List;
var session = _customerSession.CustomerSession;
// apply discounts
// create context
var ctx = new Dictionary <string, object>();
var set = GetPromotionEntrySetFromItem(item, price, tags);
ctx.Add(PromotionEvaluationContext.TargetSet, set);
var evaluationContext = new PromotionEvaluationContext
{
ContextObject = ctx,
CustomerId = session.CustomerId,
CouponCode = null,
Currency = session.Currency,
PromotionType = PromotionType.CatalogPromotion,
Store = session.StoreId,
IsRegisteredUser = session.IsRegistered,
IsFirstTimeBuyer = session.IsFirstTimeBuyer
};
var promotions = _evaluator.EvaluatePromotion(evaluationContext);
var rewards = promotions.SelectMany(x => x.Rewards).ToArray();
var records = new List <PromotionRecord>();
records.AddRange(rewards.Select(reward => new PromotionRecord
{
AffectedEntriesSet = set,
TargetEntriesSet = set,
Reward = reward,
PromotionType = PromotionType.CatalogPromotion
}));
//Filter by policies
var allRecords = _evaluator.EvaluatePolicies(records.ToArray());
var lineItemRewards = allRecords.Select(x => x.Reward).OfType <CatalogItemReward>().ToArray();
var discountTotal = 0m;
foreach (var reward in lineItemRewards)
{
if (reward.QuantityLimit > 1) // skip everything for higher quantity
{
continue;
}
if (!String.IsNullOrEmpty(reward.SkuId)) // filter out free item rewards
{
if (!item.ItemId.Equals(reward.SkuId, StringComparison.OrdinalIgnoreCase))
{
continue;
}
}
var discountAmount = 0m;
const int quantity = 1;
if (reward.AmountTypeId == (int)RewardAmountType.Relative)
{
discountAmount = Math.Round(quantity * price * reward.Amount * 0.01m, 2);
}
else if (reward.AmountTypeId == (int)RewardAmountType.Absolute)
{
discountAmount = Math.Round(quantity * reward.Amount, 2);
}
discountTotal += discountAmount;
}
return(discountTotal);
}
public Model.Promotion[] EvaluatePromotions(IPromotionEvaluationContext context)
{
return(_evaluator.EvaluatePromotion(context));
}