【新增】后台增加【取消并退款】功能，针对用户支付后并未发货的订单，后台可以直接取消并生成退款单，后台再进行选择退款方式。

CoreCms.Net.Services/Order/CoreCmsOrderServices.cs

@@ -31,13 +31,17 @@ using CoreCms.Net.Model.ViewModels.UI;
 using CoreCms.Net.Utility.Extensions;
 using CoreCms.Net.Utility.Helper;
 using CoreCms.Net.WeChat.Service.HttpClients;
+using EnumsNET;
 using Microsoft.AspNetCore.Http;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
+using Org.BouncyCastle.Crypto;
 using SKIT.FlurlHttpClient.Wechat.Api;
 using SKIT.FlurlHttpClient.Wechat.Api.Models;
 using SqlSugar;
 using Yitter.IdGenerator;
+using static CoreCms.Net.Configuration.GlobalEnumVars;
+using static SKIT.FlurlHttpClient.Wechat.Api.Models.ChannelsECAftersaleGetAftersaleOrderResponse.Types.AftersaleOrder.Types;
 
 
 namespace CoreCms.Net.Services
@@ -62,6 +66,7 @@ namespace CoreCms.Net.Services
         private readonly ICoreCmsLogisticsServices _logisticsServices;
         private readonly ICoreCmsInvoiceServices _invoiceServices;
         private readonly ICoreCmsBillAftersalesServices _billAftersalesServices;
+        private readonly ICoreCmsBillAftersalesItemServices _billAftersalesItemServices;
         private readonly ICoreCmsOrderItemServices _orderItemServices;
         private readonly ICoreCmsInvoiceRecordServices _invoiceRecordServices;
         private readonly ICoreCmsOrderLogServices _orderLogServices;
@@ -107,7 +112,7 @@ namespace CoreCms.Net.Services
             , ICoreCmsPaymentsServices paymentsServices
             , ICoreCmsBillRefundServices billRefundServices
             , ICoreCmsBillLadingServices billLadingServices
-            , ICoreCmsBillReshipServices billReshipServices, ICoreCmsMessageCenterServices messageCenterServices, ICoreCmsGoodsCommentServices goodsCommentServices, ISysTaskLogServices taskLogServices, ICoreCmsPromotionRecordServices promotionRecordServices, IRedisOperationRepository redisOperationRepository, ICoreCmsUserWeChatInfoServices userWeChatInfoServices, IWeChatApiHttpClientFactory weChatApiHttpClientFactory, IUnitOfWork unitOfWork)
+            , ICoreCmsBillReshipServices billReshipServices, ICoreCmsMessageCenterServices messageCenterServices, ICoreCmsGoodsCommentServices goodsCommentServices, ISysTaskLogServices taskLogServices, ICoreCmsPromotionRecordServices promotionRecordServices, IRedisOperationRepository redisOperationRepository, ICoreCmsUserWeChatInfoServices userWeChatInfoServices, IWeChatApiHttpClientFactory weChatApiHttpClientFactory, IUnitOfWork unitOfWork, ICoreCmsBillAftersalesItemServices billAftersalesItemServices)
         {
             this._dal = dal;
             base.BaseDal = dal;
@@ -144,6 +149,7 @@ namespace CoreCms.Net.Services
             _userWeChatInfoServices = userWeChatInfoServices;
             _weChatApiHttpClientFactory = weChatApiHttpClientFactory;
             _unitOfWork = unitOfWork;
+            _billAftersalesItemServices = billAftersalesItemServices;
         }
 
         #region 查询团购秒杀下单数量（获取货品的秒杀团购数据）
@@ -1638,6 +1644,150 @@ namespace CoreCms.Net.Services
         }
         #endregion
 
+        /// <summary>
+        /// 取消订单并退款
+        /// </summary>
+        /// <param name="orderId"></param>
+        /// <returns></returns>
+        public async Task<WebApiCallBack> CancelOrderAndRefund(string orderId)
+        {
+            var jm = new WebApiCallBack();
+            //获取订单并确认是否属于已支付并未发货的订单
+            var where = PredicateBuilder.True<CoreCmsOrder>();
+            where = where.And(p => p.orderId == orderId);
+            where = where.And(p => p.payStatus == (int)GlobalEnumVars.OrderPayStatus.Yes);
+            where = where.And(p => p.status == (int)GlobalEnumVars.OrderStatus.Normal);
+            where = where.And(p => p.shipStatus == (int)GlobalEnumVars.OrderShipStatus.No);
+
+            var orderInfo = await _dal.QueryByClauseAsync(where);
+            if (orderInfo == null)
+            {
+                jm.status = false;
+                jm.msg = "不满足条件，必须是已支付未发货订单。";
+                return jm;
+            }
+
+            //判断是否存在售后单据。
+            var haveAs = await _billAftersalesServices.ExistsAsync(p => p.orderId == orderId && p.userId == orderInfo.userId);
+            if (haveAs)
+            {
+                jm.msg = "存在售后单，暂不支持直接取消。";
+                jm.status = false;
+                return jm;
+            }
+
+            orderInfo.items = await _orderItemServices.QueryListByClauseAsync(p => p.orderId == orderInfo.orderId);
+            AfterSalesVal(orderInfo, 0);
+
+            if (orderInfo.addAftersalesStatus == false)
+            {
+                jm.msg = GlobalErrorCodeVars.Code13200;
+                jm.code = 13200;
+                return jm;
+            }
+
+            //构建售后单
+            //生成售后单号
+            var afterSalesId = CommonHelper.GetSerialNumberType((int)GlobalEnumVars.SerialNumberType.售后单编号);
+
+            var billAftersales = new CoreCmsBillAftersales();
+            billAftersales.aftersalesId = afterSalesId;
+            billAftersales.orderId = orderId;
+            billAftersales.userId = orderInfo.userId;
+            billAftersales.type = 1;
+            billAftersales.refundAmount = orderInfo.payedAmount;
+            billAftersales.reason = "后台主动发起取消订单，并走售后流程生成退款单。";
+            billAftersales.status = (int)GlobalEnumVars.BillAftersalesStatus.Success;
+            billAftersales.createTime = DateTime.Now;
+            //保存主表数据
+            await _billAftersalesServices.InsertAsync(billAftersales);
+            //保存子项目
+            var aftersalesItemData = orderInfo.items.Select(orderItem => new CoreCmsBillAftersalesItem
+            {
+                aftersalesId = afterSalesId,
+                orderItemsId = orderItem.id,
+                goodsId = orderItem.goodsId,
+                productId = orderItem.productId,
+                sn = orderItem.sn,
+                bn = orderItem.bn,
+                name = orderItem.name,
+                imageUrl = orderItem.imageUrl,
+                nums = orderItem.nums,
+                addon = orderItem.addon,
+                createTime = DateTime.Now
+            })
+                .ToList();
+            await _billAftersalesItemServices.InsertAsync(aftersalesItemData);
+            //构建退款单
+            if (billAftersales.refundAmount > 0)
+            {
+                var billRefund = new CoreCmsBillRefund();
+                billRefund.refundId = CommonHelper.GetSerialNumberType((int)GlobalEnumVars.SerialNumberType.退款单编号);
+                billRefund.aftersalesId = afterSalesId;
+                billRefund.money = billAftersales.refundAmount;
+                billRefund.userId = billAftersales.userId;
+                billRefund.sourceId = billAftersales.orderId;
+                billRefund.type = orderInfo.orderType;
+
+                //取支付成功的支付单号
+                var paymentsInfo = await _billPaymentsServices.QueryByClauseAsync(p => p.sourceId == billRefund.sourceId && p.type == orderInfo.orderType && p.status == (int)GlobalEnumVars.BillPaymentsStatus.Payed);
+                if (paymentsInfo != null)
+                {
+                    billRefund.paymentCode = paymentsInfo.paymentCode;
+                    billRefund.tradeNo = paymentsInfo.tradeNo;
+                }
+                billRefund.status = (int)GlobalEnumVars.BillRefundStatus.STATUS_NOREFUND;
+                billRefund.createTime = DateTime.Now;
+
+                await _billRefundServices.InsertAsync(billRefund);
+            }
+
+            //构建订单记录
+            //订单记录
+            var orderLog = new CoreCmsOrderLog
+            {
+                orderId = orderInfo.orderId,
+                userId = orderInfo.userId,
+                type = (int)GlobalEnumVars.OrderLogTypes.LOG_TYPE_CANCEL,
+                msg = "后端操作取消订单并退款",
+                data = JsonConvert.SerializeObject(orderInfo),
+                createTime = DateTime.Now
+            };
+            await _orderLogServices.InsertAsync(orderLog);
+
+            //如果有积分消费退还
+            if (orderInfo.point > 0)
+            {
+                await _userPointLogServices.SetPoint(orderInfo.userId, orderInfo.point, (int)GlobalEnumVars.UserPointSourceTypes.PointCanCelOrder, "后端取消订单：" + orderInfo.orderId + "返还积分");
+            }
+
+            //优惠券返还
+            if (!string.IsNullOrEmpty(orderInfo.coupon))
+            {
+                await _couponServices.CancelReturnCoupon(orderInfo.coupon);
+            }
+
+            //状态修改
+            await _dal.UpdateAsync(
+                p => new CoreCmsOrder()
+                {
+                    payStatus = (int)GlobalEnumVars.OrderPayStatus.Refunded,
+                    status = (int)GlobalEnumVars.OrderStatus.Cancel,
+                    updateTime = DateTime.Now
+                }, p => p.orderId == orderId);
+
+            var orderItems = await _orderItemServices.QueryListByClauseAsync(p => p.orderId == orderId);
+            //更改库存
+            foreach (var item in orderItems)
+            {
+                _goodsServices.ChangeStock(item.productId, GlobalEnumVars.OrderChangeStockType.cancel.ToString(), item.nums);
+            }
+
+            jm.msg = "订单取消成功请前往退款单退款。";
+            return jm;
+        }
+
+
         #region 后端根据订单状态生成不同的操作按钮
 
         /// <summary>
@@ -1669,7 +1819,10 @@ namespace CoreCms.Net.Services
                     {
                         html.Append("<a class='layui-btn layui-btn-xs edit-order' lay-active='editOrder' data-id='" + orderId + "'>编辑</a><br>");
                         html.Append("<a class='layui-btn layui-btn-xs ship-order' lay-active='shipOrder' data-id='" + orderId + "'>发货</a><br>");
-
+                        if (shipStatus == (int)GlobalEnumVars.OrderShipStatus.No)
+                        {
+                            html.Append("<a class='layui-btn layui-btn-xs layui-btn-danger cancel-order' lay-active='cancelOrderAndRefund' data-id='" + orderId + "'>取消并退款</a><br>");
+                        }
                         if (receiptType == (int)GlobalEnumVars.OrderReceiptType.IntraCityService || receiptType == (int)GlobalEnumVars.OrderReceiptType.SelfDelivery)
                         {
                             html.Append("<a class='layui-btn layui-btn-xs  layui-btn-normal seconds-ship-order' lay-active='secondsShipOrder' data-id='" + orderId + "'>秒发</a><br>");