public CouponValidationToken ValidateCoupon(int priceLineId, int couponOwnerId, int?courseId, int?bundleId, string couponCode)
{
var result = new CouponValidationToken
{
IsValid = false
, Discount = 0
};
if (string.IsNullOrEmpty(couponCode))
{
result.Message = "coupon code required";
return(result);
}
var code = couponCode.TrimString().OptimizedUrl();
var inst = CouponInstanceRepository.GetMany(x => x.CouponCode.ToLower() == code &&
(
(courseId != null && x.Coupons.CourseId == courseId) ||
(bundleId != null && x.Coupons.BundleId == bundleId) ||
(x.Coupons.OwnerUserId != null && x.Coupons.OwnerUserId == couponOwnerId)
)
).ToList();
if (inst.Count() == 1)
{
return(ValidateCoupon(priceLineId, couponOwnerId, courseId, bundleId, inst[0].Id));
}
result.Message = inst.Count.Equals(0) ? "coupon instance not found" : "multiple coupon instances found. please contact author";
return(result);
}
public CouponValidationToken ValidateCoupon(int priceLineId, int couponOwnerId, int?courseId, int?bundleId, int couponInstanceId)
{
var result = new CouponValidationToken
{
IsValid = false
, Discount = 0
};
var inst = CouponInstanceRepository.GetById(couponInstanceId);
if (inst == null)
{
result.Message = "coupon instance not found";
return(result);
}
var coupon = CouponRepository.GetById(inst.CouponId).Entity2AuthorCouponDTO();
if (coupon == null)
{
result.Message = "coupon not found";
return(result);
}
var priceToken = GetItemPriceToken(priceLineId);
if (priceToken == null)
{
result.Message = "Price Line not found";
return(result);
}
decimal basePrice;
if (courseId != null)
{
var course = CourseRepository.GetById((int)courseId);
if (course == null)
{
result.Message = "course not found";
return(result);
}
if (coupon.CourseId != null)
{
if (coupon.CourseId != courseId)
{
result.Message = "coupon not allowed to this course";
return(result);
}
}
else
{
if (coupon.OwnerUserId == null || (coupon.OwnerUserId != course.AuthorUserId))
{
result.Message = "coupon not allowed to this course";
return(result);
}
}
var itemPrice = priceToken.Price;
if (itemPrice == 0)
{
result.Message = "invalid price";
return(result);
}
basePrice = itemPrice;
}
else if (bundleId != null)
{
var bundle = BundleRepository.GetById((int)bundleId);
if (bundle == null)
{
result.Message = "bundle not found";
return(result);
}
if (coupon.BundleId != null)
{
if (coupon.BundleId != bundleId)
{
result.Message = "coupon not allowed to this bundle";
return(result);
}
}
else
{
if (coupon.OwnerUserId == null || (coupon.OwnerUserId != bundle.AuthorId))
{
result.Message = "coupon not allowed to this bundle";
return(result);
}
}
var itemPrice = priceToken.Price;
if (itemPrice == 0)
{
result.Message = "invalid price";
return(result);
}
basePrice = itemPrice;
}
else
{
result.Message = "course or bundle required";
return(result);
}
var objectName = courseId != null ? "course" : "bundle";
result.OriginalPrice = basePrice;
result.FinalPrice = basePrice;
if ((coupon.CourseId.HasValue && coupon.CourseId != courseId))
{
result.Message = "This coupon is not allowed for this " + objectName;
}
else if (coupon.ExpirationDate < DateTime.Now.AddDays(-1))
{
result.Message = "This coupon is expired";
}
else if (inst.UsageLimit != -1 && inst.SALE_OrderLines.Count >= inst.UsageLimit)
{
result.Message = "This coupon is no longer valid";
}
else
{
if (priceToken.PriceType == BillingEnums.ePricingTypes.SUBSCRIPTION && coupon.Type != CourseEnums.CouponType.SUBSCRIPTION)
{
result.Message = "This coupon is not allowed for this " + objectName;
return(result);
}
result.IsValid = true;
switch (coupon.Type)
{
case CourseEnums.CouponType.PERCENT:
case CourseEnums.CouponType.SUBSCRIPTION:
result.Discount = (decimal)(coupon.Amount != null ? basePrice * (coupon.Amount / 100) : 0);
result.FinalPrice = CalculateDiscountedPrice(basePrice, coupon.Amount ?? 0, CourseEnums.CouponType.PERCENT);
result.IsFree = result.FinalPrice == 0;
result.Message = priceToken.PriceType == BillingEnums.ePricingTypes.SUBSCRIPTION ? String.Format("The price of this {2} is now {1:0.00} for the initial {0} months of your subscription. After that, regular rates shall apply", coupon.SubscriptionMonths ?? 0, result.FinalPrice, objectName) :
String.Format("Coupon code is valid for a discount of {0}%. Your price is: {1} {2:0.00}", coupon.Amount, priceToken.Currency.ISO, result.FinalPrice);
break;
case CourseEnums.CouponType.FIXED:
if (priceToken.PriceType == BillingEnums.ePricingTypes.SUBSCRIPTION)
{
result.IsValid = false;
result.Message = "Fixed amount coupon can't be applied to subscription";
}
else
{
result.Discount = coupon.Amount ?? 0;
result.FinalPrice = CalculateDiscountedPrice(basePrice, coupon.Amount ?? 0, CourseEnums.CouponType.FIXED);
result.IsFree = result.FinalPrice == 0;
result.Message = string.Format("Coupon code is valid for a discount of {1} {0:0.00}, Your price is: {1} {2:0.00}", result.Discount, priceToken.Currency.ISO, result.FinalPrice);
}
break;
case CourseEnums.CouponType.FREE:
result.Discount = basePrice;
result.FinalPrice = 0;
result.IsFree = true;
result.Message = "This coupon entitles you to get this course for free. Click the button below to complete the process.";
break;
}
}
return(result);
}
