赛事退款

YD_Event.Application/Client/Dtos/EventClientDtos.cs

@@ -994,3 +994,26 @@ public class SelectPaymentMethodInput
     [RegularExpression(@"^[a-zA-Z0-9_-]+$", ErrorMessage = "OpenId格式不正确，只能包含字母、数字、下划线和连字符")]
     public string? OpenId { get; set; }
 }
+
+/// <summary>
+/// 取消报名退款输入DTO
+/// </summary>
+public class CancelRegistrationRefundInput
+{
+    /// <summary>
+    /// 报名记录ID
+    /// </summary>
+    [Required(ErrorMessage = "报名记录ID不能为空")]
+    public long RegistrationId { get; set; }
+
+    /// <summary>
+    /// 退款原因
+    /// </summary>
+    [MaxLength(200, ErrorMessage = "退款原因不能超过200个字符")]
+    public string? RefundReason { get; set; }
+
+    /// <summary>
+    /// 取消的项目ID列表（可选，用于部分取消）
+    /// </summary>
+    public List<long>? CancelItemIds { get; set; }
+}

YD_Event.Application/Client/EventClientController.cs

@@ -15,6 +15,7 @@ using Furion.FriendlyException;
 using System.Security.Claims;
 using System.Text.Json;
 using System.IO;
+using YD_Event.Core.Entities;
 
 namespace YD_Event.Application.Client;
 
@@ -50,6 +51,8 @@ public class EventClientController : IDynamicApiController
     private readonly ISqlSugarRepository<YD_Event.Core.Entities.Order> _orderRepository;
     private readonly ISqlSugarRepository<MerchantCertification> _merchantCertificationRepository;
     private readonly ISqlSugarRepository<EventRegistrationPayment> _paymentRepository;
+    private readonly ISqlSugarRepository<RefundRecord> _refundRecordRepository;
+    private readonly ISqlSugarRepository<RefundConfig> _refundConfigRepository;
     private readonly IHttpContextAccessor _httpContextAccessor;
     private readonly IIdGenerator _idGenerator;
     private readonly WeChatPayService _weChatPayService;
@@ -82,6 +85,8 @@ public class EventClientController : IDynamicApiController
         ISqlSugarRepository<YD_Event.Core.Entities.Order> orderRepository,
         ISqlSugarRepository<MerchantCertification> merchantCertificationRepository,
         ISqlSugarRepository<EventRegistrationPayment> paymentRepository,
+        ISqlSugarRepository<RefundRecord> refundRecordRepository,
+        ISqlSugarRepository<RefundConfig> refundConfigRepository,
         IHttpContextAccessor httpContextAccessor,
         IIdGenerator idGenerator,
         WeChatPayService weChatPayService,
@@ -113,6 +118,8 @@ public class EventClientController : IDynamicApiController
         _orderRepository = orderRepository;
         _merchantCertificationRepository = merchantCertificationRepository;
         _paymentRepository = paymentRepository;
+        _refundRecordRepository = refundRecordRepository;
+        _refundConfigRepository = refundConfigRepository;
         _httpContextAccessor = httpContextAccessor;
         _idGenerator = idGenerator;
         _weChatPayService = weChatPayService;
@@ -1624,4 +1631,243 @@ public class EventClientController : IDynamicApiController
         
         return await _registrationRepository.UpdateAsync(registration);
     }
+
+    /// <summary>
+    /// 取消报名并申请退款
+    /// </summary>
+    [HttpPost("cancel-registration-refund")]
+    [UnitOfWork]
+    [DisplayName("取消报名退款")]
+    public async Task CancelRegistrationRefund([FromBody] CancelRegistrationRefundInput input)
+    {
+        var userId = GetCurrentUserId();
+
+        // 验证报名记录
+        var registration = await _registrationRepository.GetByIdAsync(input.RegistrationId);
+        if (registration == null) throw Oops.Bah("报名记录不存在");
+        if (registration.CreatedUserId != userId) throw Oops.Bah("无权操作此报名记录");
+        if (registration.PaymentStatus != 1) throw Oops.Bah("只有已支付的报名才能申请退款");
+
+        // 获取订单信息
+        var order = await _orderRepository.GetFirstAsync(x => x.RegistrationId == input.RegistrationId && x.OrderType == 1);
+        if (order == null) throw Oops.Bah("订单不存在");
+        if (order.OrderStatus != OrderStatus.Paid) throw Oops.Bah("订单未支付，无法退款");
+
+        // 获取赛事信息
+        var eventInfo = await _eventRepository.GetByIdAsync(order.EventId);
+        if (eventInfo == null) throw Oops.Bah("赛事信息不存在");
+
+        // 计算退款金额
+        var refundAmount = await CalculateRefundAmount(order.ActualAmount, eventInfo.MatchStartTime);
+
+        // 处理退款
+        await ProcessRefundAsync(order, registration, refundAmount, input.RefundReason ?? "用户取消报名", userId);
+    }
+
+    /// <summary>
+    /// 计算退款金额
+    /// </summary>
+    private async Task<decimal> CalculateRefundAmount(decimal totalAmount, DateTime eventStartTime)
+    {
+        var configs = await _refundConfigRepository.AsQueryable()
+            .Where(x => x.Status == Core.Enum.AvailabilityStatus.Enable && !x.DeleteMark)
+            .OrderBy(x => x.DayStart)
+            .ToListAsync();
+
+        if (!configs.Any()) return totalAmount;
+
+        var daysRemaining = (eventStartTime - DateTime.Now).TotalDays;
+        if (daysRemaining < 0) daysRemaining = 0;
+
+        var matchConfig = configs.FirstOrDefault(c =>
+            daysRemaining >= c.DayStart &&
+            (c.DayEnd == int.MaxValue ? true : daysRemaining < c.DayEnd)
+        );
+
+        if (matchConfig != null)
+        {
+            var deductAmount = totalAmount * (matchConfig.DeductPercentage / 100m);
+            return totalAmount - deductAmount;
+        }
+
+        return totalAmount;
+    }
+
+    /// <summary>
+    /// 处理退款核心逻辑
+    /// </summary>
+    private async Task ProcessRefundAsync(
+        YD_Event.Core.Entities.Order order,
+        EventRegistration registration,
+        decimal refundAmount,
+        string refundReason,
+        long userId)
+    {
+        var now = DateTime.Now;
+
+        // 获取微信支付配置
+        var weChatPayConfig = await _weChatPayConfigRepository.GetFirstAsync(x => !x.DeleteMark);
+
+        // 生成退款单号
+        var outRefundNo = "RF" + DateTime.Now.ToString("yyyyMMddHHmmss") + new Random().Next(1000, 9999);
+
+        // 创建退款记录
+        var refundRecord = new RefundRecord
+        {
+            Id = _idGenerator.NewLong(),
+            OutRefundNo = outRefundNo,
+            RegistrationId = registration.Id,
+            OutTradeNo = order.OrderNo,
+            RefundAmount = refundAmount,
+            TotalAmount = order.ActualAmount,
+            RefundReason = refundReason,
+            RefundStatus = 0,
+            ApplyTime = now,
+            WeChatPayConfigId = weChatPayConfig?.Id,
+            CreatedTime = now,
+            CreatedUserId = userId,
+            Status = Core.Enum.AvailabilityStatus.Enable
+        };
+
+        // 获取支付记录中的微信交易号
+        var payment = await _paymentRepository.GetFirstAsync(p => p.RegistrationId == registration.Id);
+        if (payment != null && !string.IsNullOrEmpty(payment.TransactionNo))
+        {
+            refundRecord.TransactionId = payment.TransactionNo;
+        }
+
+        await _refundRecordRepository.InsertAsync(refundRecord);
+
+        // 如果是线上支付，调用微信退款接口
+        if (order.PaymentMethod == 2 && weChatPayConfig != null)
+        {
+            await CreateWeChatRefundAsync(refundRecord, order, weChatPayConfig, refundAmount, registration, userId);
+        }
+        else
+        {
+            // 线下支付直接标记退款成功
+            await CompleteRefundAsync(refundRecord, order, registration, userId);
+        }
+    }
+
+    /// <summary>
+    /// 调用微信退款接口
+    /// </summary>
+    private async Task CreateWeChatRefundAsync(
+        RefundRecord refundRecord,
+        YD_Event.Core.Entities.Order order,
+        WeChatPayConfig config,
+        decimal refundAmount,
+        EventRegistration registration,
+        long userId)
+    {
+        try
+        {
+            var request = new YD_Event.Core.Infrastructure.WeChat.Dto.CreateRefundRequest
+            {
+                OutTradeNo = order.OrderNo,
+                OutRefundNo = refundRecord.OutRefundNo,
+                RefundAmount = (int)(refundAmount * 100),
+                TotalAmount = (int)(order.ActualAmount * 100),
+                Reason = refundRecord.RefundReason
+                //NotifyUrl = config.RefundNotifyUrl
+            };
+
+            var result = await _weChatPayService.CreateRefundAsync(config, request);
+
+            if (result.Success)
+            {
+                refundRecord.RefundId = result.RefundId;
+                refundRecord.WeChatResponse = result.WeChatResponse;
+
+                if (result.RefundStatus == "SUCCESS")
+                {
+                    await CompleteRefundAsync(refundRecord, order, registration, userId);
+                }
+                else
+                {
+                    refundRecord.RefundStatus = 0;
+                    await _refundRecordRepository.UpdateAsync(refundRecord);
+                }
+            }
+            else
+            {
+                refundRecord.RefundStatus = 2;
+                refundRecord.ErrorMessage = result.Message;
+                refundRecord.WeChatResponse = result.WeChatResponse;
+                await _refundRecordRepository.UpdateAsync(refundRecord);
+                throw Oops.Bah($"微信退款申请失败: {result.Message}");
+            }
+        }
+        catch (Exception ex)
+        {
+            refundRecord.RefundStatus = 2;
+            refundRecord.ErrorMessage = ex.Message;
+            await _refundRecordRepository.UpdateAsync(refundRecord);
+            throw;
+        }
+    }
+
+    /// <summary>
+    /// 完成退款流程
+    /// </summary>
+    private async Task CompleteRefundAsync(
+        RefundRecord refundRecord,
+        YD_Event.Core.Entities.Order originalOrder,
+        EventRegistration registration,
+        long userId)
+    {
+        var now = DateTime.Now;
+
+        // 更新退款记录状态
+        refundRecord.RefundStatus = 1;
+        refundRecord.SuccessTime = now;
+        await _refundRecordRepository.UpdateAsync(refundRecord);
+
+        // 创建退款订单
+        var refundOrder = new YD_Event.Core.Entities.Order
+        {
+            Id = _idGenerator.NewLong(),
+            OrderNo = refundRecord.OutRefundNo,
+            OrderType = 2,
+            PaymentMethod = originalOrder.PaymentMethod,
+            RegistrationMode = originalOrder.RegistrationMode,
+            MerchantId = originalOrder.MerchantId,
+            MerchantCertificationId = originalOrder.MerchantCertificationId,
+            EventId = originalOrder.EventId,
+            RegistrationId = originalOrder.RegistrationId,
+            RelatedOrderId = originalOrder.Id,
+            OriginalAmount = originalOrder.ActualAmount,
+            ActualAmount = refundRecord.RefundAmount,
+            OrderStatus = OrderStatus.Refunded,
+            PaymentTime = now,
+            Remark = refundRecord.RefundReason,
+            CreatedTime = now,
+            CreatedUserId = userId,
+            Status = Core.Enum.AvailabilityStatus.Enable
+        };
+        await _orderRepository.InsertAsync(refundOrder);
+
+        // 更新原订单状态
+        originalOrder.OrderStatus = OrderStatus.Refunded;
+        originalOrder.UpdatedTime = now;
+        originalOrder.UpdatedUserId = userId;
+        await _orderRepository.UpdateAsync(originalOrder);
+
+        // 更新报名状态
+        registration.PaymentStatus = 3;
+        registration.UpdatedTime = now;
+        registration.UpdatedUserId = userId;
+        await _registrationRepository.UpdateAsync(registration);
+
+        // 更新支付记录
+        var payment = await _paymentRepository.GetFirstAsync(p => p.RegistrationId == originalOrder.RegistrationId);
+        if (payment != null)
+        {
+            payment.RefundStatus = 1;
+            payment.UpdatedTime = now;
+            payment.UpdatedUserId = userId;
+            await _paymentRepository.UpdateAsync(payment);
+        }
+    }
 }

YD_Event.Application/YD_Event.Application.xml

@@ -2509,6 +2509,26 @@
             - 允许的字符：字母、数字、下划线、连字符
             </remarks>
         </member>
+        <member name="T:YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput">
+            <summary>
+            取消报名退款输入DTO
+            </summary>
+        </member>
+        <member name="P:YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput.RegistrationId">
+            <summary>
+            报名记录ID
+            </summary>
+        </member>
+        <member name="P:YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput.RefundReason">
+            <summary>
+            退款原因
+            </summary>
+        </member>
+        <member name="P:YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput.CancelItemIds">
+            <summary>
+            取消的项目ID列表（可选，用于部分取消）
+            </summary>
+        </member>
         <member name="T:YD_Event.Application.Client.Dtos.MiniProgramLoginInput">
             <summary>
             小程序登录输入参数
@@ -3378,6 +3398,31 @@
             <param name="input">上传素材输入参数</param>
             <returns>操作是否成功</returns>
         </member>
+        <member name="M:YD_Event.Application.Client.EventClientController.CancelRegistrationRefund(YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput)">
+            <summary>
+            取消报名并申请退款
+            </summary>
+        </member>
+        <member name="M:YD_Event.Application.Client.EventClientController.CalculateRefundAmount(System.Decimal,System.DateTime)">
+            <summary>
+            计算退款金额
+            </summary>
+        </member>
+        <member name="M:YD_Event.Application.Client.EventClientController.ProcessRefundAsync(YD_Event.Core.Entities.Order,YD_Event.Core.Entities.EventRegistration,System.Decimal,System.String,System.Int64)">
+            <summary>
+            处理退款核心逻辑
+            </summary>
+        </member>
+        <member name="M:YD_Event.Application.Client.EventClientController.CreateWeChatRefundAsync(YD_Event.Core.Entities.RefundRecord,YD_Event.Core.Entities.Order,YD_Event.Core.Entities.WeChatPayConfig,System.Decimal,YD_Event.Core.Entities.EventRegistration,System.Int64)">
+            <summary>
+            调用微信退款接口
+            </summary>
+        </member>
+        <member name="M:YD_Event.Application.Client.EventClientController.CompleteRefundAsync(YD_Event.Core.Entities.RefundRecord,YD_Event.Core.Entities.Order,YD_Event.Core.Entities.EventRegistration,System.Int64)">
+            <summary>
+            完成退款流程
+            </summary>
+        </member>
         <member name="T:YD_Event.Application.Client.MyController">
             <summary>
             小程序-个人中心接口