public PromotionFilterContext Filter(PromotionFilterContext filterContext, IEnumerable <string> couponCodes)
{
var codes = couponCodes.ToList();
var userEmail = PrincipalInfo.CurrentPrincipal?.GetCustomerContact()?.Email;
foreach (var includedPromotion in filterContext.IncludedPromotions)
{
var couponCode = includedPromotion.Coupon.Code;
var uniqueCodes = _couponService.GetByPromotionId(includedPromotion.ContentLink.ID);
if (string.IsNullOrEmpty(couponCode) && !(uniqueCodes?.Any() ?? false))
{
continue;
}
if (!string.IsNullOrEmpty(couponCode))
{
CheckSingleCoupon(filterContext, codes, couponCode, includedPromotion);
}
else
{
CheckMultipleCoupons(filterContext, codes, includedPromotion, uniqueCodes);
}
}
return(filterContext);
}
private void CheckMultipleCoupons(PromotionFilterContext filterContext, IList <string> couponCodes, PromotionData includedPromotion, List <UniqueCoupon> uniqueCoupons)
{
foreach (var couponCode in uniqueCoupons)
{
// Check if the code its assigned to the user and that has not been used
if (couponCodes.Contains(couponCode.Code, GetCodeEqualityComparer()) && couponCode.UsedRedemptions < couponCode.MaxRedemptions)
{
filterContext.AddCouponCode(includedPromotion.ContentGuid, couponCode.Code);
return;
}
}
filterContext.ExcludePromotion(includedPromotion, FulfillmentStatus.CouponCodeRequired,
filterContext.RequestedStatuses.HasFlag(RequestFulfillmentStatus.NotFulfilled));
}
private void CheckSingleCoupon(PromotionFilterContext filterContext, IEnumerable <string> couponCodes, string couponCode, PromotionData includedPromotion)
{
if (couponCodes.Contains(couponCode, GetCodeEqualityComparer()))
{
filterContext.AddCouponCode(includedPromotion.ContentGuid, couponCode);
}
else
{
filterContext.ExcludePromotion(
includedPromotion,
FulfillmentStatus.CouponCodeRequired,
filterContext.RequestedStatuses.HasFlag(RequestFulfillmentStatus.NotFulfilled));
}
}
