using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using YD_Event.Application.Event.Dtos;
using YD_Event.Application.Common;
using YD_Event.Core.Entities;
using YD_Event.Core.Enum;
using Easy.Core;
using SqlSugar;
using Mapster;
using YD_Event.Application.Auth;
using Furion.DynamicApiController;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Authorization;
using System.ComponentModel;
using Furion.FriendlyException;
using Furion.DatabaseAccessor;
using Furion.DependencyInjection;
using YD_Event.Core.Infrastructure.WeChat;
using YD_Event.Core.Domain;
using Microsoft.Extensions.Logging;

namespace YD_Event.Application.Event;

/// <summary>
/// 用户端参赛记录管理
/// </summary>
public class UserEventRecordService : IDynamicApiController, ITransient
{
    private readonly ISqlSugarRepository<EventRegistration> _registrationRepository;
    private readonly ISqlSugarRepository<EventRegistrationPerson> _registrationPersonRepository;
    private readonly ISqlSugarRepository<EventRegistrationItem> _registrationItemRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.Project> _projectRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.AppUser> _userRepository;
    private readonly ISqlSugarRepository<EventCertificate> _certificateRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.Order> _orderRepository;
    private readonly ISqlSugarRepository<EventInfo> _eventRepository;
    private readonly ISqlSugarClient _db;
    private readonly AuthManager _authManager;
    private readonly IIdGenerator _idGenerator;
    private readonly FileService _fileService;
    private readonly ILogger<UserEventRecordService> _logger;
    private readonly UnifiedRegistrationService _unifiedRegistrationService;

    public UserEventRecordService(
        ISqlSugarRepository<EventRegistration> registrationRepository,
        ISqlSugarRepository<EventRegistrationPerson> registrationPersonRepository,
        ISqlSugarRepository<EventRegistrationItem> registrationItemRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.Project> projectRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.AppUser> userRepository,
        ISqlSugarRepository<EventCertificate> certificateRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.Order> orderRepository,
        ISqlSugarRepository<EventInfo> eventRepository,
        ISqlSugarClient db,
        AuthManager authManager,
        IIdGenerator idGenerator,
        FileService fileService,
        ILogger<UserEventRecordService> logger,
        UnifiedRegistrationService unifiedRegistrationService)
    {
        _registrationRepository = registrationRepository;
        _registrationPersonRepository = registrationPersonRepository;
        _registrationItemRepository = registrationItemRepository;
        _projectRepository = projectRepository;
        _userRepository = userRepository;
        _certificateRepository = certificateRepository;
        _orderRepository = orderRepository;
        _eventRepository = eventRepository;
        _db = db;
        _authManager = authManager;
        _idGenerator = idGenerator;
        _fileService = fileService;
        _logger = logger;
        _unifiedRegistrationService = unifiedRegistrationService;
    }

    /// <summary>
    /// 1. 列表查询
    /// </summary>
    [DisplayName("参赛记录列表查询")]
    [HttpGet("list")]
    public async Task<PageResult<RegistrationItemDTO>> GetRegistrationList([FromQuery] RegistrationListQueryInput input)
    {
        var userId = _authManager.UserId;

        var list = await _registrationRepository.AsQueryable()
            .InnerJoin<EventInfo>((r, e) => r.EventId == e.Id)
            .LeftJoin<EventFeeConfig>((r, e, fc) => e.Id == fc.EventId)
            .Where((r, e, fc) => r.CreatedUserId == userId && !r.DeleteMark)
            // 支付状态筛选：
            // - 线下支付时：显示未支付(0)和已支付(1)状态的数据
            // - 线上支付时：仅显示已支付(1)状态的数据
            .Where((r, e, fc) => 
                (r.PaymentMethod == 1 && (r.PaymentStatus == 0 || r.PaymentStatus == 1)) || 
                (r.PaymentMethod == 2 && r.PaymentStatus == 1))
            .WhereIF(input.EventId.HasValue, (r, e, fc) => r.EventId == input.EventId)
            .WhereIF(!string.IsNullOrWhiteSpace(input.Keyword), (r, e, fc) => r.TeamName.Contains(input.Keyword) || e.EventName.Contains(input.Keyword))
            .OrderByDescending((r, e, fc) => r.CreatedTime)
            .Select((r, e, fc) => new 
            {
                r.Id, r.EventId, e.EventName, r.TeamName, r.PaymentStatus, r.MaterialUrl, r.PaymentProofUrl, 
                r.CreatedTime, r.UpdatedTime, r.TotalPersonCount, e.MaterialUploadEndTime,
                e.CoverImage, e.EventType, e.EventStatus, e.RegistrationStartTime, e.RegistrationEndTime, 
                e.MatchStartTime, e.MatchEndTime,
                fc.ChargeMode,
                r.PaymentMethod
            })
            .ToPagedListAsync(input);

        var resultItems = list.Rows.Select(x => {
            return new RegistrationItemDTO
            {
                RegistrationId = x.Id,
                EventName = x.EventName,
                CoverImage = x.CoverImage,
                EventType = (int?)x.EventType,
                ChargeMode = (int?)x.ChargeMode,
                EventStatus = (int?)x.EventStatus,
                RegistrationStartTime = x.RegistrationStartTime,
                RegistrationEndTime = x.RegistrationEndTime,
                MaterialDeadline = x.MaterialUploadEndTime,
                MatchStartTime = x.MatchStartTime,
                MatchEndTime = x.MatchEndTime,
                TeamName = x.TeamName,
                CreateTime = x.CreatedTime,
                UpdateTime = x.UpdatedTime,
                PayStatus = x.PaymentStatus,
                CertStatus = 0, // 未颁发
                HasMaterial = !string.IsNullOrEmpty(x.MaterialUrl),
                HasVoucher = !string.IsNullOrEmpty(x.PaymentProofUrl),
                MemberCount = x.TotalPersonCount,
                MaxMember = 10,
                ExpireTime = x.MaterialUploadEndTime
            };
        }).ToList();

        return new PageResult<RegistrationItemDTO>
        {
            PageNo = list.PageNo,
            PageSize = list.PageSize,
            Total = list.Total,
            Pages = list.Pages,
            Rows = resultItems
        };
    }

    /// <summary>
    /// 2. 取消报名
    /// </summary>
    [DisplayName("取消报名")]
    [HttpPost("cancel/{registrationId}")]
    [UnitOfWork]
    public async Task<ResponseDTO<bool>> CancelRegistration([FromRoute] long registrationId)
    {
        var userId = _authManager.UserId;
        var registration = await _registrationRepository.GetFirstAsync(x => x.Id == registrationId && x.CreatedUserId == userId);
        if (registration == null) throw Oops.Bah("报名记录不存在");

        if (registration.PaymentStatus == 4) throw Oops.Bah("订单已取消");

        // 校验状态：只有未支付状态可直接取消，已支付需走退款流程
        if (registration.PaymentStatus == 1) throw Oops.Bah("已支付订单请联系客服退款");

        _logger.LogInformation("开始取消报名：报名ID={RegistrationId}, 操作人={UserId}, 当前状态={PaymentStatus}", 
            registrationId, userId, registration.PaymentStatus);

        // 更新报名状态
        registration.PaymentStatus = 4; // 已取消
        registration.UpdatedUserId = userId;
        registration.UpdatedTime = DateTime.Now;
        await _registrationRepository.UpdateAsync(registration);

        // 同步更新订单状态
        if (!string.IsNullOrEmpty(registration.OrderNo))
        {
            var order = await _orderRepository.GetFirstAsync(o => o.OrderNo == registration.OrderNo);
            if (order != null)
            {
                order.OrderStatus = OrderStatus.Cancelled;
                order.UpdatedTime = DateTime.Now;
                order.UpdatedUserId = userId;
                await _orderRepository.UpdateAsync(order);
                _logger.LogInformation("订单状态已同步更新：订单号={OrderNo}, 状态={OrderStatus}", 
                    registration.OrderNo, OrderStatus.Cancelled);
            }
            else
            {
                _logger.LogWarning("未找到对应的订单记录：报名ID={RegistrationId}, 订单号={OrderNo}", 
                    registrationId, registration.OrderNo);
            }
        }

        _logger.LogInformation("取消报名成功：报名ID={RegistrationId}", registrationId);
        return new ResponseDTO<bool> { Code = 200, Success = true, Data = true, Message = "取消成功" };
    }

    /// <summary>
    /// 3. 上传素材
    /// </summary>
    [DisplayName("上传素材")]
    [HttpPost("material/{registrationId}")]
    [UnitOfWork]
    public async Task<ResponseDTO<List<MaterialDTO>>> UploadMaterial([FromRoute] long registrationId, [FromForm] UploadMaterialInput input)
    {
        var userId = _authManager.UserId;
        var registration = await _registrationRepository.GetFirstAsync(x => x.Id == registrationId && x.CreatedUserId == userId);
        if (registration == null) throw Oops.Bah("报名记录不存在");

        // 仅 status = 待上传素材 或 已上传素材 允许再次上传
        // 即 PayStatus == 1 (已支付)
        if (registration.PaymentStatus != 1) throw Oops.Bah("未支付或状态不正确，无法上传素材");
        
        // 总素材大小累计不超过 100 MB (简化校验，假设单次)
        long totalSize = input.Files.Sum(f => f.Length);
        if (totalSize > 100 * 1024 * 1024) throw Oops.Bah("素材总大小超过100MB");

        var result = new List<MaterialDTO>();
        foreach (var file in input.Files)
        {
            var uploadResult = await _fileService.Upload(file);
            var item = uploadResult.FirstOrDefault();
            if (item != null)
            {
                result.Add(new MaterialDTO
                {
                    MaterialId = _idGenerator.NewLong().ToString(),
                    OssUrl = item.Url,
                    FileName = item.Name,
                    FileSize = file.Length,
                    UploadTime = DateTime.Now
                });
            }
        }

        if (result.Any())
        {
            registration.MaterialUrl = result.First().OssUrl; // 更新主表
            await _registrationRepository.UpdateAsync(registration);
        }

        return new ResponseDTO<List<MaterialDTO>> { Code = 200, Success = true, Data = result, Message = "上传成功" };
    }

    /// <summary>
    /// 4. 上传付款凭证
    /// </summary>
    [DisplayName("上传付款凭证")]
    [HttpPost("voucher/{registrationId}")]
    [UnitOfWork]
    public async Task<ResponseDTO<VoucherDTO>> UploadVoucher([FromRoute] long registrationId, [FromForm] UploadVoucherInput input)
    {
        var userId = _authManager.UserId;
        var registration = await _registrationRepository.GetFirstAsync(x => x.Id == registrationId && x.CreatedUserId == userId);
        if (registration == null) throw Oops.Bah("报名记录不存在");

        // 仅 status = 待付款 允许上传
        if (registration.PaymentStatus != 0) throw Oops.Bah("当前状态不允许上传凭证");

        var uploadResult = await _fileService.Upload(input.File);
        var fileInfo = uploadResult.First();

        registration.PaymentProofUrl = fileInfo.Url;
        registration.PaymentStatus = 0;
        registration.UpdatedTime = DateTime.Now;
        await _registrationRepository.UpdateAsync(registration);

        return new ResponseDTO<VoucherDTO>
        {
            Code = 200, Success = true, Message = "上传成功",
            Data = new VoucherDTO
            {
                VoucherId = _idGenerator.NewLong().ToString(),
                OssUrl = fileInfo.Url,
                AuditStatus = "待审核"
            }
        };
    }

    /// <summary>
    /// 5.1 查看队员列表
    /// </summary>
    [DisplayName("查看队员列表")]
    [HttpGet("members/{registrationId}")]
    public async Task<List<TeamMemberDTO>> GetTeamMembers([FromRoute] long registrationId)
    {
        var userId = _authManager.UserId;
        var registration = await _registrationRepository.GetFirstAsync(x => x.Id == registrationId && x.CreatedUserId == userId);
        if (registration == null) throw Oops.Bah("报名记录不存在");

        var persons = await _registrationPersonRepository.GetListAsync(x => x.RegistrationId == registrationId);
        
        // 需要关联 AppUser 获取更多信息 (Email 等)
        // 这里简化处理
        return persons.Select(p => new TeamMemberDTO
        {
            UserId = 0, // 需关联 AppUser
            RealName = p.Name,
            Phone = p.Phone,
            Email = "", // 暂无
            Role = p.PersonType == PersonType.Leader ? "队长" : "队员", // 假设
            InviteStatus = "已加入",
            JoinTime = p.CreatedTime
        }).ToList();
    }

    /// <summary>
    /// 5.2 更换队员
    /// </summary>
    [DisplayName("更换队员")]
    [HttpPost("members/replace/{registrationId}/{userId}")]
    [UnitOfWork]
    public async Task<ResponseDTO<bool>> ReplaceMember([FromRoute] long registrationId, [FromRoute] long userId, [FromBody] ReplaceMemberInput input)
    {
        var currentUserId = _authManager.UserId;
        // 校验队长权限: 仅创建者(队长)可操作
        var registration = await _registrationRepository.GetFirstAsync(x => x.Id == registrationId && x.CreatedUserId == currentUserId);
        if (registration == null) throw Oops.Bah("无权操作或记录不存在");
        
        var person = await _registrationPersonRepository.GetFirstAsync(x => x.RegistrationId == registrationId && x.Id == userId);
        if (person == null) throw Oops.Bah("队员不存在");

        // 被替换人 role ≠ 队长
        if (person.PersonType == PersonType.Leader) throw Oops.Bah("不能替换队长");

        // 检查新队员
        var newUser = await _userRepository.GetByIdAsync(input.NewUserId);
        if (newUser == null) throw Oops.Bah("新队员不存在");

        long oldUserId = person.Id;
        
        // 更新信息
        person.Name = newUser.Name;
        person.IdCard = newUser.IdCardNumber;
        person.Phone = newUser.Mobile;
        person.UpdatedTime = DateTime.Now;
        await _registrationPersonRepository.UpdateAsync(person);

        return new ResponseDTO<bool> { Code = 200, Success = true, Data = true, Message = "更换成功" };
    }

    /// <summary>
    /// 6. 查看证书
    /// </summary>
    [DisplayName("查看证书")]
    [HttpGet("certificate/{registrationId}")]
    public async Task<ResponseDTO<CertificateDTO>> GetCertificate([FromRoute] long registrationId)
    {
        var userId = _authManager.UserId;
        
        // 2-已发放
        var cert = await _certificateRepository.GetFirstAsync(x => x.RegistrationId == registrationId && x.CertificateStatus == 2); 
        if (cert == null) return new ResponseDTO<CertificateDTO> { Code = 404, Message = "证书未颁发", Success = false };

        // 权限验证
        bool hasPermission = await CheckCertificatePermissionAsync(userId, cert);
        if (!hasPermission)
        {
            return new ResponseDTO<CertificateDTO> { Code = 403, Message = "无权查看该证书", Success = false };
        }

        return new ResponseDTO<CertificateDTO>
        {
            Code = 200, Success = true,
            Data = new CertificateDTO
            {
                CertUrl = cert.CertificateUrl,
                CertNumber = cert.CertificateNo,
                IssueTime = cert.IssuedTime ?? DateTime.MinValue,
                ExpireTime = null
            }
        };
    }

    /// <summary>
    /// 检查证书查看权限
    /// </summary>
    private async Task<bool> CheckCertificatePermissionAsync(long currentUserId, EventCertificate cert)
    {
        // 如果是自己的证书，直接允许
        if (cert.UserId == currentUserId)
        {
            return true;
        }

        // 检查当前用户是否是单位用户，且该证书属于其管理的团队成员
        var currentUser = await _userRepository.GetByIdAsync(currentUserId);
        if (currentUser == null)
        {
            return false;
        }

        // 如果当前用户有单位认证
        if (currentUser.MerchantCertificationId.HasValue)
        {
            // 查询当前用户管理的团队成员
            var teamMemberUserIds = await _db.Queryable<YD_Event.Core.Entities.Team>()
                .InnerJoin<TeamMember>((t, tm) => t.Id == tm.TeamId)
                .Where((t, tm) => t.CreatedUserId == currentUserId && !t.DeleteMark && !tm.DeleteMark)
                .Select((t, tm) => tm.UserId)
                .ToListAsync();

            // 检查证书用户是否在团队成员列表中
            if (teamMemberUserIds.Contains(cert.UserId))
            {
                return true;
            }
        }

        return false;
    }

    /// <summary>
    /// 7. 取消报名预览
    /// </summary>
    [DisplayName("取消报名预览")]
    [HttpGet("cancel/preview/{registrationId}")]
    public async Task<CancelPreviewOutput> CancelPreview([FromRoute] long registrationId)
    {
        var userId = _authManager.UserId;
        _logger.LogInformation("调用统一取消报名预览：报名ID={RegistrationId}, 操作人={UserId}", registrationId, userId);
        return await _unifiedRegistrationService.GetCancelPreviewAsync(registrationId, userId);
    }

    /// <summary>
    /// 8. 执行取消报名
    /// </summary>
    [DisplayName("执行取消报名")]
    [HttpPost("cancel/execute")]
    [UnitOfWork]
    public async Task<CancelExecuteOutput> CancelExecute([FromBody] CancelExecuteInput input)
    {
        var userId = _authManager.UserId;
        _logger.LogInformation("调用统一执行取消报名：报名ID={RegistrationId}, 操作人={UserId}", input.RegistrationId, userId);
        return await _unifiedRegistrationService.ExecuteCancelRegistrationAsync(input, userId);
    }

    /// <summary>
    /// 9. 获取参赛记录详情（包含项目和队员）
    /// </summary>
    [DisplayName("获取参赛记录详情（包含项目和队员）")]
    [HttpGet("detail-with-items/{registrationId}")]
    public async Task<RegistrationDetailWithItemsDto> GetRegistrationDetailWithItems([FromRoute] long registrationId)
    {
        var userId = _authManager.UserId;
        var registration = await _registrationRepository.GetFirstAsync(x => x.Id == registrationId && x.CreatedUserId == userId);
        if (registration == null) throw Oops.Bah("报名记录不存在");

        // 获取赛事信息
        var eventInfo = await _eventRepository.GetByIdAsync(registration.EventId);

        // 获取报名项目
        var items = await _registrationItemRepository.GetListAsync(x => x.RegistrationId == registrationId);

        // 获取所有队员
        var persons = await _registrationPersonRepository.GetListAsync(x => x.RegistrationId == registrationId);

        // 获取组别信息（年龄和性别限制）
        var groupIds = items.Where(x => x.EventProjectGroupId.HasValue).Select(x => x.EventProjectGroupId.Value).Distinct().ToList();
        var groups = new Dictionary<long, EventProjectGroup>();
        if (groupIds.Any())
        {
            var groupList = await _db.Queryable<EventProjectGroup>()
                .Where(x => groupIds.Contains(x.Id))
                .ToListAsync();
            groups = groupList.ToDictionary(x => x.Id);
        }

        // 获取项目信息（从Project表查询项目名称和完成人数）
        var projectIds = items.Select(x => x.ProjectId).Distinct().ToList();
        var projects = new Dictionary<long, YD_Event.Core.Entities.Project>();
        if (projectIds.Any())
        {
            var projectList = await _projectRepository.GetListAsync(x => projectIds.Contains(x.Id));
            projects = projectList.ToDictionary(x => x.Id);
        }

        var result = new RegistrationDetailWithItemsDto
        {
            RegistrationId = registration.Id,
            EventName = eventInfo?.EventName ?? "",
            TeamName = registration.TeamName ?? ""
        };

        foreach (var item in items)
        {
            var itemMembers = persons.Where(p => p.RegistrationItemId == item.Id).ToList();
            
            // 获取组别信息
            EventProjectGroup? group = null;
            if (item.EventProjectGroupId.HasValue && groups.TryGetValue(item.EventProjectGroupId.Value, out var foundGroup))
            {
                group = foundGroup;
            }

            // 获取项目信息
            YD_Event.Core.Entities.Project? project = null;
            if (projects.TryGetValue(item.ProjectId, out var foundProject))
            {
                project = foundProject;
            }

            result.Items.Add(new RegistrationItemWithMembersDto
            {
                RegistrationItemId = item.Id,
                ProjectId = item.ProjectId,
                // 优先从Project表获取项目名称，如果没有则使用报名时保存的名称
                ProjectName = project?.Name ?? item.ProjectName ?? "",
                GroupName = item.GroupName ?? "",
                ProjectTypeName = item.ProjectTypeName ?? "",
                PersonCount = item.PersonCount,
                // 从Project表获取完成人数
                ProjectCompletionCount = project?.CompletionCount ?? 0,
                BirthDateStart = group?.BirthDateStart,
                BirthDateEnd = group?.BirthDateEnd,
                GenderRequirement = group?.Gender,
                Members = itemMembers.Select(p => new RegistrationPersonDto
                {
                    Id = p.Id,
                    Name = p.Name,
                    IdCardNumber = p.IdCard,
                    Gender = p.Gender,
                    Mobile = p.Phone,
                    BirthDate = p.BirthDate
                }).ToList()
            });
        }

        return result;
    }

    /// <summary>
    /// 10. 更新参赛队员
    /// </summary>
    [DisplayName("更新参赛队员")]
    [HttpPost("update-members")]
    [UnitOfWork]
    public async Task<ResponseDTO<bool>> UpdateRegistrationMembers([FromBody] UpdateRegistrationMembersInput input)
    {
        var userId = _authManager.UserId;
        var registration = await _registrationRepository.GetFirstAsync(x => x.Id == input.RegistrationId && x.CreatedUserId == userId);
        if (registration == null) throw Oops.Bah("报名记录不存在或无权操作");

        _logger.LogInformation("开始更新参赛队员：报名ID={RegistrationId}, 操作人={UserId}", input.RegistrationId, userId);

        // 获取所有需要查询的用户ID
        var userIds = input.Items.SelectMany(x => x.Members).Where(x => x.UserId.HasValue).Select(x => x.UserId.Value).Distinct().ToList();
        var users = new Dictionary<long, YD_Event.Core.Entities.AppUser>();
        if (userIds.Any())
        {
            var userList = await _userRepository.GetListAsync(x => userIds.Contains(x.Id));
            users = userList.ToDictionary(x => x.Id);
        }

        foreach (var item in input.Items)
        {
            // 验证项目是否属于该报名
            var regItem = await _registrationItemRepository.GetFirstAsync(x => x.Id == item.RegistrationItemId && x.RegistrationId == input.RegistrationId);
            if (regItem == null) throw Oops.Bah($"项目记录不存在：{item.RegistrationItemId}");

            // 删除旧的队员
            await _registrationPersonRepository.DeleteAsync(x => x.RegistrationItemId == item.RegistrationItemId);

            // 添加新的队员
            var newPersons = new List<EventRegistrationPerson>();
            foreach (var member in item.Members)
            {
                // 如果有UserId，从用户表获取完整信息
                YD_Event.Core.Entities.AppUser? user = null;
                if (member.UserId.HasValue && users.TryGetValue(member.UserId.Value, out var foundUser))
                {
                    user = foundUser;
                }

                var name = member.Name ?? user?.Name;
                var gender = member.Gender ?? user?.Gender ?? Gender.Male;
                var idCardNumber = member.IdCardNumber ?? user?.IdCardNumber;
                var birthDate = member.BirthDate ?? user?.BirthDate ?? DateTime.Now.AddYears(-20);
                var mobile = member.Mobile ?? user?.Mobile;

                // 验证必填字段
                if (string.IsNullOrWhiteSpace(name)) throw Oops.Bah("队员姓名不能为空");
                if (string.IsNullOrWhiteSpace(idCardNumber)) throw Oops.Bah("队员身份证号不能为空");
                if (string.IsNullOrWhiteSpace(mobile)) throw Oops.Bah("队员手机号不能为空");

                newPersons.Add(new EventRegistrationPerson
                {
                    Id = _idGenerator.NewLong(),
                    RegistrationId = input.RegistrationId,
                    RegistrationItemId = item.RegistrationItemId,
                    ProjectId = regItem.ProjectId,
                    EventProjectGroupId = regItem.EventProjectGroupId,
                    GroupName = regItem.GroupName,
                    ProjectName = regItem.ProjectName,
                    Name = name,
                    Gender = gender,
                    IdCard = idCardNumber,
                    BirthDate = birthDate,
                    Phone = mobile,
                    Age = CalculateAge(birthDate),
                    PersonType = PersonType.Athlete,
                    UserId = member.UserId ?? 0,
                    CreatedUserId = userId,
                    CreatedTime = DateTime.Now
                });
            }

            await _registrationPersonRepository.InsertRangeAsync(newPersons);

            // 更新项目的人数
            regItem.PersonCount = item.Members.Count;
            regItem.UpdatedTime = DateTime.Now;
            regItem.UpdatedUserId = userId;
            await _registrationItemRepository.UpdateAsync(regItem);
        }

        // 更新报名总人数
        var allPersonsCount = await _registrationPersonRepository.CountAsync(x => x.RegistrationId == input.RegistrationId);
        registration.TotalPersonCount = allPersonsCount;
        registration.UpdatedTime = DateTime.Now;
        registration.UpdatedUserId = userId;
        await _registrationRepository.UpdateAsync(registration);

        _logger.LogInformation("更新参赛队员成功：报名ID={RegistrationId}", input.RegistrationId);

        return new ResponseDTO<bool> { Code = 200, Success = true, Data = true, Message = "更新成功" };
    }

    /// <summary>
    /// 计算年龄
    /// </summary>
    private int CalculateAge(DateTime birthDate)
    {
        var today = DateTime.Today;
        var age = today.Year - birthDate.Year;
        if (birthDate.Date > today.AddYears(-age)) age--;
        return age;
    }
}