/// <summary>
/// 检查优惠券是否可用
/// </summary>
/// <param name="couponCode"></param>
/// <param name="customer"></param>
/// <returns></returns>
private bool CheckCouponCodeCanUse(string couponCode, CustomerInfo customer)
{
#region 1、初次筛选该优惠券号码对于前用户是否能用
CustomerCouponInfo customerCoupon = PromotionDA.GetCouponSaleRules(customer.SysNo, couponCode);
if (customerCoupon == null)
{
return(false);
}
if (customerCoupon.IsExpired)
{
return(false);
}
if (customerCoupon.CustomerMaxFrequency.HasValue && customerCoupon.UsedCount >= customerCoupon.CustomerMaxFrequency.Value)
{
return(false);
}
int totalUsedCount = 0;
if (customerCoupon.CodeType.Trim().ToUpper() == "C")
{
totalUsedCount = PromotionDA.GetCouponCodeTotalUsedCount(couponCode);
}
else
{
totalUsedCount = PromotionDA.GetCouponTotalUsedCount(customerCoupon.CouponSysNo);
}
if (customerCoupon.WebsiteMaxFrequency.HasValue && totalUsedCount >= customerCoupon.WebsiteMaxFrequency)
{
return(false);
}
#endregion
#region 2、获取该优惠券号码对应的优惠券活动所有信息
CouponInfo coupon = PromotionDA.GetComboInfoByCouponCode(couponCode);
if (coupon.SaleRulesEx.CustomerMaxFrequency.HasValue && customerCoupon.UsedCount >= coupon.SaleRulesEx.CustomerMaxFrequency.Value)
{
return(false);
}
if (coupon.SaleRulesEx.MaxFrequency.HasValue && totalUsedCount >= coupon.SaleRulesEx.MaxFrequency.Value)
{
return(false);
}
if (coupon == null)
{
return(false);
}
#endregion
#region 3、详细检查该优惠券号码是否可用
if (!string.IsNullOrWhiteSpace(coupon.SaleRulesEx.NeedEmailVerification) && coupon.SaleRulesEx.NeedEmailVerification.ToUpper().Trim() == "Y")
{
if (customer.IsEmailConfirmed != 1)
{
return(false);
}
}
if (!string.IsNullOrWhiteSpace(coupon.SaleRulesEx.NeedMobileVerification) && coupon.SaleRulesEx.NeedMobileVerification.ToUpper().Trim() == "Y")
{
if (customer.IsPhoneValided != 1)
{
return(false);
}
}
if (coupon.SaleRulesList.Count > 0 && coupon.SaleRulesList.Exists(f => f.SaleRuleType == CouponSaleRuleType.RelCustomerRank))
{
//-1表示不限制
if (!coupon.SaleRulesList.Exists(f => f.CustomerRank == -1))
{
int customerRank = customer.CustomerRank;
if (!coupon.SaleRulesList.Exists(f => f.CustomerRank == customerRank))
{
return(false);
}
}
}
#endregion
return(true);
}
public void Calculate(ref OrderInfo order)
{
CalculateDiscountAmount(order);
Dictionary <int, List <OrderInfo> > merchantOrderList = new Dictionary <int, List <OrderInfo> >();
#region 1、分拆商家订单
if (order.SubOrderList != null)
{
foreach (var subOrder in order.SubOrderList)
{
int merchantSysNo = Convert.ToInt32(subOrder.Key.Split('|')[0]);
if (!merchantOrderList.ContainsKey(merchantSysNo))
{
merchantOrderList[merchantSysNo] = new List <OrderInfo>();
}
merchantOrderList[merchantSysNo].Add(subOrder.Value);
}
}
#endregion
#region 2、计算商家优惠券
List <CustomerCouponInfo> merchantCouponList = PromotionDA.GetMerchantCouponCodeList(order.Customer.SysNo);
if (merchantCouponList != null)
{
foreach (var merchantOrder in merchantOrderList)
{
List <CustomerCouponInfo> currMerchantCouponList = merchantCouponList.FindAll(m => m.MerchantSysNo == merchantOrder.Key);
if (currMerchantCouponList == null || currMerchantCouponList.Count == 0)
{
continue;
}
foreach (var coupon in currMerchantCouponList)
{
bool canUse = false;
#region 检查商品限制，是否可用
List <int> productSysNoList = new List <int>();
foreach (var itemOrder in merchantOrder.Value)
{
foreach (var itemGroup in itemOrder.OrderItemGroupList)
{
itemGroup.ProductItemList.ForEach(product =>
{
productSysNoList.Add(product.ProductSysNo);
});
}
}
List <CouponSaleRules> couponSaleRulesList = PromotionDA.GetCouponSaleRulesList(coupon.CouponCode);
if (couponSaleRulesList == null || couponSaleRulesList.Count == 0)
{
//不存在排除或指定商品，全网通用
canUse = true;
}
else
{
foreach (int productSysNo in productSysNoList)
{
if (couponSaleRulesList.Exists(m => m.ProductSysNo == productSysNo))
{
if (couponSaleRulesList[0].RelationType == "N")
{
//存在排除的商品，不可用
canUse = false;
break;
}
else
{
//存在指定的商品，可用
canUse = true;
break;
}
}
}
}
#endregion
if (canUse)
{
if (CheckCouponCodeCanUse(coupon.CouponCode, order.Customer))
{
foreach (var itemOrder in merchantOrder.Value)
{
if (itemOrder.MerchantCouponList == null)
{
itemOrder.MerchantCouponList = new List <CustomerCouponInfo>();
}
itemOrder.MerchantCouponList.Add(coupon);
}
}
}
}
}
}
#endregion
#region 3、商家订单使用优惠券
foreach (var merchantOrder in merchantOrderList)
{
MerchantCoupon merchantCoupon = null;
if (order.MerchantCouponCodeList != null)
{
merchantCoupon = order.MerchantCouponCodeList.Find(m => m.MerchantSysNo == merchantOrder.Key);
}
if (merchantCoupon == null)
{
continue;
}
string couponCode = merchantCoupon.CouponCode.ToUpper().Trim();
#region 1、初次筛选该优惠券号码对于前用户是否能用
CustomerCouponInfo customerCoupon = PromotionDA.GetCouponSaleRules(order.Customer.SysNo, couponCode);
if (customerCoupon == null)
{
SetCouponError(ref order, LanguageHelper.GetText("您没有此优惠券{0}", order.LanguageCode), merchantCoupon.CouponName);
continue;
}
if (customerCoupon.IsExpired)
{
SetCouponError(ref order, LanguageHelper.GetText("此优惠券{0}已过期", order.LanguageCode), merchantCoupon.CouponName);
continue;
}
if (customerCoupon.CustomerMaxFrequency.HasValue && customerCoupon.UsedCount >= customerCoupon.CustomerMaxFrequency.Value)
{
SetCouponError(ref order, LanguageHelper.GetText("您已达到使用优惠券{0}的次数上限", order.LanguageCode), merchantCoupon.CouponName);
continue;
}
int totalUsedCount = 0;
if (customerCoupon.CodeType.Trim().ToUpper() == "C")
{
totalUsedCount = PromotionDA.GetCouponCodeTotalUsedCount(couponCode);
}
else
{
totalUsedCount = PromotionDA.GetCouponTotalUsedCount(customerCoupon.CouponSysNo);
}
if (customerCoupon.WebsiteMaxFrequency.HasValue && totalUsedCount >= customerCoupon.WebsiteMaxFrequency)
{
SetCouponError(ref order, LanguageHelper.GetText("此优惠券{0}的已达到全网使用次数上限", order.LanguageCode), merchantCoupon.CouponName);
continue;
}
#endregion
#region 2、获取该优惠券号码对应的优惠券活动所有信息
CouponInfo coupon = PromotionDA.GetComboInfoByCouponCode(couponCode);
if (coupon.SaleRulesEx.CustomerMaxFrequency.HasValue && customerCoupon.UsedCount >= coupon.SaleRulesEx.CustomerMaxFrequency.Value)
{
SetCouponError(ref order, LanguageHelper.GetText("您已达到使用此优惠券活动的次数上限", order.LanguageCode));
continue;
}
if (coupon.SaleRulesEx.MaxFrequency.HasValue && totalUsedCount >= coupon.SaleRulesEx.MaxFrequency.Value)
{
SetCouponError(ref order, LanguageHelper.GetText("此优惠券活动已达到全网使用次数上限", order.LanguageCode));
continue;
}
if (coupon == null)
{
SetCouponError(ref order, LanguageHelper.GetText("此优惠券{0}不存在", order.LanguageCode), merchantCoupon.CouponName);
continue;
}
#endregion
#region 3、详细检查该优惠券号码是否可用
if (!string.IsNullOrWhiteSpace(coupon.SaleRulesEx.NeedEmailVerification) && coupon.SaleRulesEx.NeedEmailVerification.ToUpper().Trim() == "Y")
{
if (order.Customer.IsEmailConfirmed != 1)
{
SetCouponError(ref order, LanguageHelper.GetText("此优惠券要求客户验证了电子邮箱才可使用！", order.LanguageCode));
continue;
}
}
if (!string.IsNullOrWhiteSpace(coupon.SaleRulesEx.NeedMobileVerification) && coupon.SaleRulesEx.NeedMobileVerification.ToUpper().Trim() == "Y")
{
if (order.Customer.IsPhoneValided != 1)
{
SetCouponError(ref order, LanguageHelper.GetText("此优惠券要求客户验证了手机才可使用！", order.LanguageCode));
continue;
}
}
if (coupon.SaleRulesList.Count > 0 && coupon.SaleRulesList.Exists(f => f.SaleRuleType == CouponSaleRuleType.RelCustomerRank))
{
//-1表示不限制
if (!coupon.SaleRulesList.Exists(f => f.CustomerRank == -1))
{
int customerRank = order.Customer.CustomerRank;
if (!coupon.SaleRulesList.Exists(f => f.CustomerRank == customerRank))
{
SetCouponError(ref order, LanguageHelper.GetText("当前客户不满足此优惠券要求的客户等级！", order.LanguageCode));
continue;
}
}
}
if (coupon.SaleRulesList.Count > 0 && coupon.SaleRulesList.Exists(f => f.SaleRuleType == CouponSaleRuleType.RelArea))
{
int areaID = order.Contact.AddressAreaID;
Area area = PromotionDA.GetAreaBySysNo(areaID);
int provinceId = area.ProvinceSysNo.Value;
if (!coupon.SaleRulesList.Exists(f => f.SaleRuleType == CouponSaleRuleType.RelArea && f.AreaSysNo == provinceId))
{
SetCouponError(ref order, LanguageHelper.GetText("当前客户不满足此优惠券要求的客户地区！", order.LanguageCode));
continue;
}
}
#endregion
#region 4、计算该优惠券可以抵扣多少，填充到OrderInfo中
if (coupon.DiscountRuleList != null && coupon.DiscountRuleList.Count > 0)
{
//取得满足优惠券条件的商品总金额
decimal canCalculateAmount = GetCanCalculateAmount(merchantOrder.Value, coupon);
if (canCalculateAmount == 0)
{
SetCouponError(ref order, LanguageHelper.GetText("没有满足该优惠券的商品，无法抵扣", order.LanguageCode));
continue;
}
canCalculateAmount = canCalculateAmount - Math.Abs(order.TotalDiscountAmount);
if (canCalculateAmount < coupon.SaleRulesEx.OrderAmountLimit)
{
SetCouponError(ref order, LanguageHelper.GetText("没有满足该优惠券要求的商品总金额下限{0}，无法抵扣", order.LanguageCode), coupon.SaleRulesEx.OrderAmountLimit);
continue;
}
decimal totalPriceAmount = (merchantOrder.Value.Sum(m => m.TotalProductAmount) - merchantOrder.Value.Sum(m => m.TotalDiscountAmount));
#region 处理订单 折扣金额模式 和 百分比模式
if (coupon.DiscountRuleList[0].DiscountType == CouponDiscountType.OrderAmountDiscount || coupon.DiscountRuleList[0].DiscountType == CouponDiscountType.OrderAmountPercentage)
{
//获取适合的折扣规则
Coupon_DiscountRules curDiscountRule = GetMatchDiscountRule(coupon, canCalculateAmount);
if (curDiscountRule == null)
{
SetCouponError(ref order, LanguageHelper.GetText("订单总金额未达到优惠券要求的最小购买金额，无法抵扣", order.LanguageCode));
return;
}
decimal discount = 0m;
if (curDiscountRule.DiscountType == CouponDiscountType.OrderAmountDiscount)
{
discount = Math.Abs(Math.Round(curDiscountRule.Value, 2));
}
else
{
discount = Math.Abs(Math.Round(canCalculateAmount * curDiscountRule.Value, 2));
}
if (coupon.SaleRulesEx.OrderMaxDiscount.HasValue && coupon.SaleRulesEx.OrderMaxDiscount.Value > 0m)
{
if (discount > coupon.SaleRulesEx.OrderMaxDiscount.Value)
{
discount = coupon.SaleRulesEx.OrderMaxDiscount.Value;
}
}
foreach (var subOrder in merchantOrder.Value)
{
subOrder.MerchantCouponCodeSysNo = customerCoupon.CouponCodeSysNo;
subOrder.MerchantCouponCode = customerCoupon.CouponCode;
subOrder.MerchantCouponSysNo = customerCoupon.CouponSysNo;
subOrder.MerchantCouponName = customerCoupon.CouponName;
subOrder.MerchantCouponAmount = discount * ((subOrder.TotalProductAmount - subOrder.TotalDiscountAmount) / totalPriceAmount);
subOrder.MerchantCouponErrorDesc = string.Empty;
foreach (var itemGroup in subOrder.OrderItemGroupList)
{
foreach (var item in itemGroup.ProductItemList)
{
item["UnitCouponAmt"] = (discount * (item.UnitSalePrice - (item["UnitDiscountAmt"] == null ? 0m :(decimal)item["UnitDiscountAmt"])))
/ totalPriceAmount;
item["MerchantUnitCouponAmt"] = (discount * (item.UnitSalePrice - (item["UnitDiscountAmt"] == null ? 0m : (decimal)item["UnitDiscountAmt"])))
/ totalPriceAmount;
}
}
}
}
#endregion
#region 处理 一个商品直减模式
if (coupon.DiscountRuleList[0].DiscountType == CouponDiscountType.ProductPriceDiscount)
{
if (coupon.SaleRulesList == null || coupon.SaleRulesList.Count == 0)
{
SetCouponError(ref order, LanguageHelper.GetText("没有满足该优惠券的指定商品，无法抵扣", order.LanguageCode));
return;
}
Coupon_SaleRules productSaleRule = coupon.SaleRulesList.Find(f => f.SaleRuleType == CouponSaleRuleType.RelProduct);
int discountProductSysNo = productSaleRule.ProductSysNo;
int discountProductCount = 0;
decimal productReduce = 0m;
decimal productPrice = 0.00m;
foreach (OrderItemGroup itemGroup in order.OrderItemGroupList)
{
OrderProductItem item = itemGroup.ProductItemList.Find(f => f.ProductSysNo == discountProductSysNo);
if (item != null)
{
discountProductCount += item.UnitQuantity * itemGroup.Quantity;
productPrice = item.UnitSalePrice;
}
}
if (discountProductCount == 0)
{
SetCouponError(ref order, LanguageHelper.GetText("没有满足该优惠券的指定商品，无法抵扣", order.LanguageCode));
return;
}
if (discountProductCount > coupon.DiscountRuleList[0].Quantity)
{
discountProductCount = coupon.DiscountRuleList[0].Quantity;
}
productReduce = coupon.DiscountRuleList[0].Value;
if (coupon.DiscountRuleList[0].Value > productPrice)
{
productReduce = productPrice;
}
decimal discount = Math.Abs(Math.Round(productReduce * discountProductCount, 2));
if (coupon.SaleRulesEx.OrderMaxDiscount.HasValue && coupon.SaleRulesEx.OrderMaxDiscount.Value > 0m)
{
if (discount > coupon.SaleRulesEx.OrderMaxDiscount.Value)
{
discount = coupon.SaleRulesEx.OrderMaxDiscount.Value;
}
}
foreach (var subOrder in merchantOrder.Value)
{
subOrder.MerchantCouponCodeSysNo = customerCoupon.CouponCodeSysNo;
subOrder.MerchantCouponCode = customerCoupon.CouponCode;
subOrder.MerchantCouponSysNo = customerCoupon.CouponSysNo;
subOrder.MerchantCouponName = customerCoupon.CouponName;
subOrder.MerchantCouponAmount = discount * ((subOrder.TotalProductAmount - subOrder.TotalDiscountAmount) / totalPriceAmount);
subOrder.MerchantCouponErrorDesc = string.Empty;
subOrder["MerchantCoupon_DiscountProductSysNo"] = discountProductSysNo;
subOrder["MerchantCoupon_DiscountProductCount"] = discountProductCount;
foreach (var itemGroup in subOrder.OrderItemGroupList)
{
foreach (var item in itemGroup.ProductItemList)
{
item["UnitCouponAmt"] = (discount * (item.UnitSalePrice - (item["UnitDiscountAmt"] == null ? 0m : (decimal)item["UnitDiscountAmt"])))
/ totalPriceAmount;
item["MerchantUnitCouponAmt"] = (discount * (item.UnitSalePrice - (item["UnitDiscountAmt"] == null ? 0m : (decimal)item["UnitDiscountAmt"])))
/ totalPriceAmount;
}
}
}
}
#endregion
#region 处理 一个商品最终售价模式
if (coupon.DiscountRuleList[0].DiscountType == CouponDiscountType.ProductPriceFinal)
{
if (coupon.SaleRulesList == null || coupon.SaleRulesList.Count == 0)
{
SetCouponError(ref order, LanguageHelper.GetText("没有满足该优惠券的指定商品，无法抵扣", order.LanguageCode));
return;
}
Coupon_SaleRules productSaleRule = coupon.SaleRulesList.Find(f => f.SaleRuleType == CouponSaleRuleType.RelProduct);
int discountProductSysNo = productSaleRule.ProductSysNo;
decimal discountProductPrice = 0.00m;
int discountProductCount = 0;
foreach (var currOrder in merchantOrder.Value)
{
foreach (OrderItemGroup itemGroup in currOrder.OrderItemGroupList)
{
OrderProductItem item = itemGroup.ProductItemList.Find(f => f.ProductSysNo == discountProductSysNo);
if (item != null)
{
discountProductCount += item.UnitQuantity * itemGroup.Quantity;
discountProductPrice = item.UnitSalePrice;
}
}
}
if (discountProductCount == 0)
{
SetCouponError(ref order, LanguageHelper.GetText("没有满足该优惠券的指定商品,无法抵扣", order.LanguageCode));
return;
}
if (discountProductCount > coupon.DiscountRuleList[0].Quantity)
{
discountProductCount = coupon.DiscountRuleList[0].Quantity;
}
decimal discount = 0m;
if (discountProductPrice > coupon.DiscountRuleList[0].Value)
{
discount = Math.Abs(Math.Round((discountProductPrice - coupon.DiscountRuleList[0].Value) * discountProductCount, 2));
}
else
{
SetCouponError(ref order, LanguageHelper.GetText("该优惠券的指定商品已经是优惠券设定的最低价格,无法抵扣", order.LanguageCode));
return;
}
if (coupon.SaleRulesEx.OrderMaxDiscount.HasValue && coupon.SaleRulesEx.OrderMaxDiscount.Value > 0m)
{
if (discount > coupon.SaleRulesEx.OrderMaxDiscount.Value)
{
discount = coupon.SaleRulesEx.OrderMaxDiscount.Value;
}
}
foreach (var subOrder in merchantOrder.Value)
{
subOrder.MerchantCouponCodeSysNo = customerCoupon.CouponCodeSysNo;
subOrder.MerchantCouponCode = customerCoupon.CouponCode;
subOrder.MerchantCouponSysNo = customerCoupon.CouponSysNo;
subOrder.MerchantCouponName = customerCoupon.CouponName;
subOrder.MerchantCouponAmount = discount * ((subOrder.TotalProductAmount - subOrder.TotalDiscountAmount) / totalPriceAmount);
subOrder.MerchantCouponErrorDesc = string.Empty;
subOrder["MerchantCoupon_DiscountProductSysNo"] = discountProductSysNo;
subOrder["MerchantCoupon_DiscountProductCount"] = discountProductCount;
foreach (var itemGroup in subOrder.OrderItemGroupList)
{
foreach (var item in itemGroup.ProductItemList)
{
item["UnitCouponAmt"] = (discount * (item.UnitSalePrice - (item["UnitDiscountAmt"] == null ? 0m : (decimal)item["UnitDiscountAmt"])))
/ totalPriceAmount;
item["MerchantUnitCouponAmt"] = (discount * (item.UnitSalePrice - (item["UnitDiscountAmt"] == null ? 0m : (decimal)item["UnitDiscountAmt"])))
/ totalPriceAmount;
}
}
}
}
#endregion
foreach (var subOrder in merchantOrder.Value)
{
subOrder["MerchantCoupon_DiscountType"] = coupon.DiscountRuleList[0].DiscountType;
}
}
#endregion
}
#endregion
}