/// <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 }