YD_Event.Admin/YD_Event.Application/Client/EventClientController.cs

using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;
using Microsoft.Extensions.Logging;
using YD_Event.Application.Client.Dtos;
using YD_Event.Core.Entities;
using YD_Event.Core.Enum;
using YD_Event.Core.Infrastructure.WeChat;
using YD_Event.Core.Infrastructure.WeChat.Dto;
using YD_Event.Core.Options;
using SqlSugar;
using Furion.DatabaseAccessor;
using Microsoft.AspNetCore.Authorization;
using Furion.FriendlyException;
using System.Security.Claims;
using System.Text.Json;

namespace YD_Event.Application.Client;

/// <summary>
/// 小程序-赛事接口
/// </summary>
[ApiDescriptionSettings("微信小程序接口")]
[Authorize]
public class EventClientController : IDynamicApiController
{
    private readonly ISqlSugarRepository<EventInfo> _eventRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.Project> _projectRepository;
    private readonly ISqlSugarRepository<EventProject> _eventProjectRepository;
    private readonly ISqlSugarRepository<ProjectGroup> _groupRepository;
    private readonly ISqlSugarRepository<EventRegistration> _registrationRepository;
    private readonly ISqlSugarRepository<EventRegistrationItem> _registrationItemRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.Banner> _bannerRepository;
    private readonly ISqlSugarRepository<EventUnit> _unitRepository;
    private readonly ISqlSugarRepository<EventRegistrationPerson> _personRepository;
    private readonly ISqlSugarRepository<EventRegistrationLimit> _limitRepository;
    private readonly ISqlSugarRepository<EventProjectRegistrationLimit> _projectLimitRepository;
    private readonly ISqlSugarRepository<EventFeeConfig> _feeConfigRepository;
    private readonly ISqlSugarRepository<WeChatPayConfig> _weChatPayConfigRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.Merchant> _merchantRepository;
    private readonly ISqlSugarRepository<PointsRule> _pointsRuleRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.AppUser> _appUserRepository;
    private readonly IHttpContextAccessor _httpContextAccessor;
    private readonly IIdGenerator _idGenerator;
    private readonly WeChatPayService _weChatPayService;
    private readonly IOptionsMonitor<WechatTenpayClientOptions> _wechatTenpayClientOptionsMonitor;
    private readonly ILogger<EventClientController> _logger;

    public EventClientController(
        ISqlSugarRepository<EventInfo> eventRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.Project> projectRepository,
        ISqlSugarRepository<EventProject> eventProjectRepository,
        ISqlSugarRepository<ProjectGroup> groupRepository,
        ISqlSugarRepository<EventRegistration> registrationRepository,
        ISqlSugarRepository<EventRegistrationItem> registrationItemRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.Banner> bannerRepository,
        ISqlSugarRepository<EventUnit> unitRepository,
        ISqlSugarRepository<EventRegistrationPerson> personRepository,
        ISqlSugarRepository<EventRegistrationLimit> limitRepository,
        ISqlSugarRepository<EventProjectRegistrationLimit> projectLimitRepository,
        ISqlSugarRepository<EventFeeConfig> feeConfigRepository,
        ISqlSugarRepository<WeChatPayConfig> weChatPayConfigRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.Merchant> merchantRepository,
        ISqlSugarRepository<PointsRule> pointsRuleRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.AppUser> appUserRepository,
        IHttpContextAccessor httpContextAccessor,
        IIdGenerator idGenerator,
        WeChatPayService weChatPayService,
        IOptionsMonitor<WechatTenpayClientOptions> wechatTenpayClientOptionsMonitor,
        ILogger<EventClientController> logger)
    {
        _eventRepository = eventRepository;
        _projectRepository = projectRepository;
        _eventProjectRepository = eventProjectRepository;
        _groupRepository = groupRepository;
        _registrationRepository = registrationRepository;
        _registrationItemRepository = registrationItemRepository;
        _bannerRepository = bannerRepository;
        _unitRepository = unitRepository;
        _personRepository = personRepository;
        _limitRepository = limitRepository;
        _projectLimitRepository = projectLimitRepository;
        _feeConfigRepository = feeConfigRepository;
        _weChatPayConfigRepository = weChatPayConfigRepository;
        _merchantRepository = merchantRepository;
        _pointsRuleRepository = pointsRuleRepository;
        _appUserRepository = appUserRepository;
        _httpContextAccessor = httpContextAccessor;
        _idGenerator = idGenerator;
        _weChatPayService = weChatPayService;
        _wechatTenpayClientOptionsMonitor = wechatTenpayClientOptionsMonitor;
        _logger = logger;
    }

    private long GetCurrentUserId()
    {
        var userIdStr = _httpContextAccessor.HttpContext?.User?.FindFirst(AuthClaimsConst.AuthIdKey)?.Value;
        if (string.IsNullOrEmpty(userIdStr) || !long.TryParse(userIdStr, out long userId))
        {
            throw Oops.Bah("未登录或登录已失效");
        }
        return userId;
    }

    /// <summary>
    /// 获取轮播图列表
    /// </summary>
    /// <returns></returns>
    [HttpGet("banners")]
    [AllowAnonymous]
    public async Task<List<BannerDto>> GetBannerList()
    {
        var list = await _bannerRepository.AsQueryable()
            .Where(b => !b.DeleteMark && b.Status == AvailabilityStatus.Enable)
            .OrderByDescending(b => b.Sort)
            .ToListAsync();

        return list.Select(b => new BannerDto
        {
            Title = b.Title,
            ImageUrl = b.ImageUrl,
            LinkType = b.LinkType,
            LinkUrl = b.LinkUrl,
            EventId = b.EventId
        }).ToList();
    }

    /// <summary>
    /// 获取赛事列表
    /// </summary>
    /// <param name="page">页码</param>
    /// <param name="pageSize">页大小</param>
    /// <param name="status">状态筛选：0-全部 1-报名中 2-比赛中 3-已结束</param>
    /// <param name="keyword">搜索关键字</param>
    /// <returns></returns>
    [HttpGet("list")]
    [AllowAnonymous] // 允许未登录查看列表？根据需求，原型中有“我的”，可能需要登录。但通常列表可公开。这里先设为允许匿名，获取详情再校验。
                     // 修正：Class上有[Authorize]，如果需要匿名需显式[AllowAnonymous]。
                     // 假设小程序进入即登录，保持Authorize
    public async Task<PageResult<EventListDto>> GetEventList([FromQuery] int page = 1, [FromQuery] int pageSize = 10, [FromQuery] int status = 0, [FromQuery] string? keyword = null)
    {
        var query = _eventRepository.AsQueryable()
            .Where(e => !e.DeleteMark && e.Status == AvailabilityStatus.Enable)
            .WhereIF(!string.IsNullOrEmpty(keyword), e => e.EventName.Contains(keyword));

        // 状态筛选逻辑
        // 1-报名中: Now >= RegStart && Now <= RegEnd
        // 2-比赛中: Now >= MatchStart && Now <= MatchEnd
        // 3-已结束: Now > MatchEnd
        var now = DateTime.Now;
        if (status == 1)
        {
            query = query.Where(e => now >= e.RegistrationStartTime && now <= e.RegistrationEndTime);
        }
        else if (status == 2)
        {
            query = query.Where(e => now >= e.MatchStartTime && now <= e.MatchEndTime);
        }
        else if (status == 3)
        {
            query = query.Where(e => now > e.MatchEndTime);
        }

        // 排序：优先按报名开始时间倒序
        query = query.OrderByDescending(e => e.RegistrationStartTime);

        var list = await query.ToPagedListAsync(new Pagination { PageNo = page, PageSize = pageSize });

        var result = new PageResult<EventListDto>
        {
            PageNo = list.PageNo,
            PageSize = list.PageSize,
            Total = list.Total,
            Pages = list.Pages,
            Rows = list.Rows.Select(e => new EventListDto
            {
                Id = e.Id,
                EventName = e.EventName,
                CoverImage = e.CoverImage,
                EventStatus = CalculateEventStatus(e), // 动态计算状态
                RegistrationStartTime = e.RegistrationStartTime,
                RegistrationEndTime = e.RegistrationEndTime,
                MatchStartTime = e.MatchStartTime,
                MatchEndTime = e.MatchEndTime,
                Address = $"{e.Province}{e.City}{e.District}{e.DetailAddress}"
            }).ToList()
        };

        return result;
    }

    /// <summary>
    /// 获取赛事详情
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    [HttpGet("{id}")]
    [AllowAnonymous]
    public async Task<EventDetailDto> GetEventDetail(long id)
    {
        var evt = await _eventRepository.GetFirstAsync(e => e.Id == id && !e.DeleteMark);
        if (evt == null) throw Oops.Bah("赛事不存在");

        // 获取项目及组别
        var eventProjects = await _eventProjectRepository.AsQueryable()
            .Where(ep => ep.EventId == id)
            .ToListAsync();

        var eventProjectIds = eventProjects.Select(ep => ep.Id).Distinct().ToList();
        var projectIds = eventProjects.Select(ep => ep.ProjectId).Distinct().ToList();

        var baseProjects = await _projectRepository.AsQueryable()
            .LeftJoin<ProjectType>((p, t) => p.ProjectTypeId == t.Id)
            .Where(p => projectIds.Contains(p.Id) && !p.DeleteMark && p.Status == AvailabilityStatus.Enable)
            .Select((p, t) => new {
                p.Id,
                p.Name,
                TypeName = t.Name
            })
            .ToListAsync();

        var groups = await _groupRepository.AsQueryable()
            .Where(g => projectIds.Contains(g.ProjectId) && !g.DeleteMark)
            .ToListAsync();

        // 获取项目限制信息
        var projectLimits = await _projectLimitRepository.AsQueryable()
            .Where(pl => pl.EventId == id && !pl.DeleteMark)
            .ToListAsync();

        // 获取单位
        var units = await _unitRepository.AsQueryable()
            .Where(u => u.EventId == id && !u.DeleteMark)
            .OrderBy(u => u.Sort)
            .ToListAsync();

        // 获取限制规则
        var limit = await _limitRepository.GetFirstAsync(l => l.EventId == id && !l.DeleteMark);

        // 从 CustomConfigJson 解析退款规则和积分规则
        string refundRule = "开赛前7天扣除金额5%，3-7天扣除金额10%，3天内扣除金额20%";
        string pointsRule = "参与积分：5积分；名次积分：1-8名 15积分，9-20名 10积分";
        
        if (!string.IsNullOrWhiteSpace(evt.CustomConfigJson))
        {
            try
            {
                var config = System.Text.Json.JsonSerializer.Deserialize<Dictionary<string, string>>(evt.CustomConfigJson);
                if (config != null)
                {
                    if (config.TryGetValue("RefundRule", out var rule) && !string.IsNullOrWhiteSpace(rule))
                    {
                        refundRule = rule;
                    }
                    if (config.TryGetValue("PointsRule", out var pRule) && !string.IsNullOrWhiteSpace(pRule))
                    {
                        pointsRule = pRule;
                    }
                }
            }
            catch
            {
                // 解析失败时使用默认值
            }
        }

        // 如果有积分规则ID，从数据库获取
        if (evt.PointsRuleId.HasValue)
        {
            var pointsRuleEntity = await _pointsRuleRepository.GetFirstAsync(r => r.Id == evt.PointsRuleId.Value && !r.DeleteMark);
            if (pointsRuleEntity != null)
            {
                pointsRule = pointsRuleEntity.Remark ?? pointsRule;
            }
        }

        var detail = new EventDetailDto
        {
            Id = evt.Id,
            EventName = evt.EventName,
            CoverImage = evt.CoverImage,
            EventStatus = CalculateEventStatus(evt),
            RegistrationStartTime = evt.RegistrationStartTime,
            RegistrationEndTime = evt.RegistrationEndTime,
            MatchStartTime = evt.MatchStartTime,
            MatchEndTime = evt.MatchEndTime,
            Address = $"{evt.Province}{evt.City}{evt.District}{evt.DetailAddress}",
            EventVideo = evt.EventVideo,
            EventType = evt.EventType,
            ChargeMode = evt.ChargeMode,
            RegistrationType = evt.RegistrationType,
            EventIntroduction = evt.EventIntroduction,
            MaterialRemark = evt.MaterialRemark,
            MaterialUploadStartTime = evt.MaterialUploadStartTime,
            MaterialUploadEndTime = evt.MaterialUploadEndTime,
            RefundRule = refundRule,
            PointsRule = pointsRule,

            IndividualProjectLimit = limit?.IndividualProjectLimit ?? 0,
            TeamProjectLimit = limit?.TeamProjectLimit ?? 0,

            Units = units.Select(u => new EventUnitDto
            {
                UnitType = u.UnitType,
                UnitName = u.UnitName,
                LogoUrl = u.LogoUrl
            }).ToList(),

            Projects = eventProjects.Select(ep =>
            {
                var bp = baseProjects.FirstOrDefault(b => b.Id == ep.ProjectId);
                var pl = projectLimits.FirstOrDefault(x => x.ProjectId == ep.Id);
                return new EventProjectDto
                {
                    Id = ep.Id,
                    Name = bp?.Name ?? "",
                    TypeName = bp?.TypeName ?? "",
                    Fee = ep.Price / 100m,
                    ProjectLimitCount = pl?.LimitCount,
                    Groups = groups.Where(g => g.ProjectId == ep.ProjectId).Select(g => new EventProjectGroupDto
                    {
                        Id = g.Id,
                        GroupName = g.GroupName,
                        GenderRequirement = g.Gender == Gender.Male ? "男" : (g.Gender == Gender.Female ? "女" : "不限"),
                        AgeRequirement = $"{g.BirthDateStart:yyyy-MM-dd} 至 {g.BirthDateEnd:yyyy-MM-dd}"
                    }).ToList()
                };
            }).Where(x => !string.IsNullOrEmpty(x.Name)).ToList()
        };

        return detail;
    }

    /// <summary>
    /// 计算报名金额
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("calculate-amount")]
    public async Task<CalculateAmountOutput> CalculateRegistrationAmount([FromBody] CalculateAmountInput input)
    {
        var evt = await _eventRepository.GetFirstAsync(e => e.Id == input.EventId && !e.DeleteMark);
        if (evt == null) throw Oops.Bah("赛事不存在");

        var result = new CalculateAmountOutput
        {
            ChargeMode = evt.ChargeMode,
            TotalAmount = 0,
            ItemDetails = new List<CalculateAmountItemOutput>()
        };

        if (evt.ChargeMode == ChargeMode.Free)
        {
            return result;
        }

        // 获取赛事费用配置
        var feeConfig = await _feeConfigRepository.GetFirstAsync(f => f.EventId == input.EventId && !f.DeleteMark);

        // 获取项目信息
        var eventProjectIds = input.Items.Select(i => i.ProjectId).Distinct().ToList();
        var eventProjects = await _eventProjectRepository.AsQueryable()
            .Where(ep => eventProjectIds.Contains(ep.Id))
            .ToListAsync();

        var projectIds = eventProjects.Select(ep => ep.ProjectId).Distinct().ToList();
        var baseProjects = await _projectRepository.AsQueryable()
            .Where(p => projectIds.Contains(p.Id))
            .ToListAsync();

        decimal totalAmount = 0;

        foreach (var item in input.Items)
        {
            var ep = eventProjects.FirstOrDefault(p => p.Id == item.ProjectId);
            if (ep == null) throw Oops.Bah($"项目不存在: {item.ProjectId}");

            var bp = baseProjects.FirstOrDefault(p => p.Id == ep.ProjectId);
            decimal unitPrice = 0;
            decimal subtotal = 0;

            // 根据收费模式计算金额
            switch (evt.ChargeMode)
            {
                case ChargeMode.FixedPrice:
                    // 定价（赛事）：整个赛事一个固定价格，每人一份
                    if (feeConfig != null)
                    {
                        unitPrice = feeConfig.Price;
                        subtotal = unitPrice * item.PersonCount;
                    }
                    break;

                case ChargeMode.UnitPriceEvent:
                    // 单价（赛事）：按人数收费
                    if (feeConfig != null)
                    {
                        unitPrice = feeConfig.Price;
                        subtotal = unitPrice * item.PersonCount;
                    }
                    break;

                case ChargeMode.UnitPriceProject:
                    // 单价（项目）：每个项目有自己的价格
                    unitPrice = ep.Price / 100m;
                    subtotal = unitPrice * item.PersonCount;
                    break;
            }

            result.ItemDetails.Add(new CalculateAmountItemOutput
            {
                ProjectId = item.ProjectId,
                ProjectName = bp?.Name ?? "",
                UnitPrice = unitPrice,
                PersonCount = item.PersonCount,
                Subtotal = subtotal
            });

            totalAmount += subtotal;
        }

        result.TotalAmount = totalAmount;
        return result;
    }

    /// <summary>
    /// 提交赛事报名
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("apply")]
    [UnitOfWork]
    public async Task<long> SubmitRegistration([FromBody] SubmitRegistrationInput input)
    {
        var userId = GetCurrentUserId();
        
        // 0. 校验报名模式
        if (input.RegistrationMode == 2) // 假设2为团队
            throw Oops.Bah("团队报名请前往网页端进行操作");

        var evt = await _eventRepository.GetFirstAsync(e => e.Id == input.EventId);
        if (evt == null) throw Oops.Bah("赛事不存在");

        // 1. 校验时间
        if (DateTime.Now < evt.RegistrationStartTime || DateTime.Now > evt.RegistrationEndTime)
            throw Oops.Bah("不在报名时间内");

        // 2. 校验重复报名 (同一赛事同一人只能报一次？还是可以多次？通常一次报名包含多个项目)
        // 假设同一用户对同一赛事只能有一个“未取消”的报名记录
        var exist = await _registrationRepository.IsAnyAsync(r => r.EventId == input.EventId && r.CreatedUserId == userId && r.RegistrationStatus != 4); // 4=已取消
        if (exist) throw Oops.Bah("您已报名该赛事，请勿重复提交");

        // 3. 校验项目有效性 & 限制
        if (input.Items == null || !input.Items.Any()) throw Oops.Bah("请至少选择一个项目");
        
        var limit = await _limitRepository.GetFirstAsync(l => l.EventId == input.EventId && !l.DeleteMark);
        if (limit != null)
        {
            // 简单校验项目总数，更严谨需按项目类型统计
            if (input.Items.Count > limit.IndividualProjectLimit)
                throw Oops.Bah($"每人最多可报{limit.IndividualProjectLimit}个项目");
        }
        
        // 4. 创建报名主表
        var registrationId = _idGenerator.NewLong();
        var registration = new EventRegistration
        {
            Id = registrationId,
            EventId = input.EventId,
            RegistrationMode = input.RegistrationMode,
            TeamName = input.RegistrationMode == 2 ? input.TeamName : null,
            ContactName = input.ContactName,
            ContactPhone = input.ContactPhone,
            RegistrationStatus = 0, // 待提交/待支付
            PaymentStatus = 0, // 未支付
            RegistrationTime = DateTime.Now,
            CreatedUserId = userId,
            CreatedTime = DateTime.Now,
            Status = AvailabilityStatus.Enable,
            TotalPersonCount = 0 // 稍后计算
        };

        // 5. 创建报名明细 & 参赛人员 & 计算费用
        decimal totalAmount = 0;
        int totalPerson = 0;
        var regItems = new List<EventRegistrationItem>();
        var persons = new List<EventRegistrationPerson>();
        
        foreach (var item in input.Items)
        {
            var eventProject = await _eventProjectRepository.GetFirstAsync(p => p.Id == item.ProjectId);
            if (eventProject == null) throw Oops.Bah($"项目不存在: {item.ProjectId}");

            var project = await _projectRepository.GetFirstAsync(p => p.Id == eventProject.ProjectId);
            if (project == null) throw Oops.Bah($"关联基础项目不存在: {item.ProjectId}");

            // 校验组别
            // 略，假设前端传参正确，或需根据 GroupId 查

            if (item.Persons == null || !item.Persons.Any())
                throw Oops.Bah($"项目[{project.Name}]未填写参赛人信息");

            var regItemId = _idGenerator.NewLong();
            var regItem = new EventRegistrationItem
            {
                Id = regItemId,
                RegistrationId = registrationId,
                ProjectId = item.ProjectId,
                ProjectName = project.Name,
                GroupName = item.GroupName,
                UnitPrice = eventProject.Price / 100m,
                PersonCount = item.Persons.Count,
                TotalPrice = (eventProject.Price / 100m) * item.Persons.Count,
                CreatedUserId = userId,
                CreatedTime = DateTime.Now
            };
            regItems.Add(regItem);
            totalAmount += regItem.TotalPrice;
            totalPerson += regItem.PersonCount;
            
            // 添加参赛人员
            foreach (var pInput in item.Persons)
            {
                persons.Add(new EventRegistrationPerson
                {
                    Id = _idGenerator.NewLong(),
                    RegistrationId = registrationId,
                    RegistrationItemId = regItemId,
                    ProjectId = item.ProjectId,
                    PersonType = PersonType.Athlete, // 运动员
                    Name = pInput.Name,
                    Gender = pInput.Gender,
                    IdCard = pInput.IdCardNumber,
                    BirthDate = pInput.BirthDate,
                    Phone = pInput.Mobile,
                    GroupName = item.GroupName,
                    ProjectName = project.Name,
                    CreatedUserId = userId,
                    CreatedTime = DateTime.Now
                });
            }
        }

        registration.TotalAmount = totalAmount;
        registration.TotalPersonCount = totalPerson;
        registration.OrderNo = _idGenerator.NewLong().ToString(); // 使用雪花ID生成订单号

        await _registrationRepository.InsertAsync(registration);
        await _registrationItemRepository.InsertRangeAsync(regItems);
        await _personRepository.InsertRangeAsync(persons);

        return registrationId;
    }

    /// <summary>
    /// 获取支付信息
    /// </summary>
    /// <remarks>
    /// 用于获取赛事报名的支付信息，包括微信JSAPI支付参数
    /// OpenId 参数必须通过请求体(JSON)传入，格式验证由DTO自动处理
    /// </remarks>
    /// <param name="input">支付信息查询输入参数，包含报名记录ID和OpenId</param>
    /// <returns>支付信息，包括微信支付参数（如果是微信支付）</returns>
    [HttpPost("payment-info")]
    public async Task<PaymentInfoDto> GetPaymentInfo([FromBody] GetPaymentInfoInput input)
    {
        var userId = GetCurrentUserId();
        var reg = await _registrationRepository.GetFirstAsync(r => r.Id == input.RegistrationId && r.CreatedUserId == userId);
        if (reg == null) throw Oops.Bah("报名记录不存在");

        var evt = await _eventRepository.GetFirstAsync(e => e.Id == reg.EventId);
        if (evt == null) throw Oops.Bah("赛事不存在");

        var configOptions = _wechatTenpayClientOptionsMonitor.CurrentValue;
        var paymentInfo = new PaymentInfoDto
        {
            RegistrationId = reg.Id,
            Amount = reg.TotalAmount,
            PaymentMethod = reg.PaymentMethod,
            BankAccountName = "上海跃动文化科技有限公司",
            BankAccountNo = "456498465198456261",
            BankName = "招商银行"
        };

        if (reg.PaymentMethod == 2 && reg.TotalAmount > 0)
        {
            WeChatPayConfig? payConfig = null;
            if (evt.MerchantId.HasValue)
            {
                payConfig = await _weChatPayConfigRepository.GetFirstAsync(x => 
                    x.MerchantId == evt.MerchantId.Value && 
                    x.Status == AvailabilityStatus.Enable && 
                    !x.DeleteMark);
            }

            if (payConfig == null)
            {
                payConfig = await _weChatPayConfigRepository.GetFirstAsync(x => 
                    x.Status == AvailabilityStatus.Enable && !x.DeleteMark);
            }

            if (payConfig != null)
            {
                _logger.LogInformation("开始创建微信 JSAPI 支付订单，订单号={OrderNo}，OpenId={OpenId}", reg.OrderNo, input.OpenId);
                
                var jsapiRequest = new CreateJsApiPayRequest
                {
                    OutTradeNo = reg.OrderNo,
                    AppId = configOptions.AppId,
                    Description = $"{evt.EventName} - 报名费",
                    NotifyUrl = configOptions.NotifyUrl,
                    TotalAmount = (int)(reg.TotalAmount * 100),
                    ExpireTime = DateTimeOffset.Now.AddMinutes(30),
                    OpenId = input.OpenId
                };

                var payResult = await _weChatPayService.CreateJsApiPayAsync(payConfig, jsapiRequest);
                if (payResult.Success && payResult.JsApiParameters != null)
                {
                    _logger.LogInformation("微信 JSAPI 支付下单成功，订单号={OrderNo}", reg.OrderNo);
                    paymentInfo.WechatPayParams = new
                    {
                        appId = payResult.JsApiParameters.AppId,
                        timeStamp = payResult.JsApiParameters.TimeStamp,
                        nonceStr = payResult.JsApiParameters.NonceStr,
                        package = payResult.JsApiParameters.Package,
                        signType = payResult.JsApiParameters.SignType,
                        paySign = payResult.JsApiParameters.PaySign
                    };
                }
                else
                {
                    _logger.LogError("微信 JSAPI 支付下单失败：订单号={OrderNo}，错误信息={Message}", reg.OrderNo, payResult.Message);
                    throw Oops.Bah($"微信支付下单失败：{payResult.Message}");
                }
            }
            else
            {
                _logger.LogError("未找到可用的微信支付配置，赛事ID={EventId}", evt.Id);
                throw Oops.Bah("未找到可用的微信支付配置");
            }
        }

        return paymentInfo;
    }

    /// <summary>
    /// 上传支付凭证（线下支付）
    /// </summary>
    [HttpPost("upload-voucher/{registrationId}")]
    public async Task<bool> UploadPaymentVoucher(long registrationId, [FromBody] UploadVoucherInput input)
    {
        var userId = GetCurrentUserId();
        var reg = await _registrationRepository.GetFirstAsync(r => r.Id == registrationId && r.CreatedUserId == userId);
        if (reg == null) throw Oops.Bah("报名记录不存在");

        reg.PaymentMethod = 1; // 线下
        reg.PaymentProofUrl = input.VoucherUrl;
        reg.RegistrationStatus = 1; // 待审核
        reg.UpdatedTime = DateTime.Now;
        reg.UpdatedUserId = userId;
        
        return await _registrationRepository.UpdateAsync(reg);
    }
    
    /// <summary>
    /// 更新参赛人信息
    /// </summary>
    [HttpPost("update-player")]
    public async Task<bool> UpdateRegistrationPlayer([FromBody] UpdatePlayerInput input)
    {
        var userId = GetCurrentUserId();
        var person = await _personRepository.GetFirstAsync(p => p.Id == input.PersonId);
        if (person == null) throw Oops.Bah("参赛人不存在");
        
        // 校验权限：确保是该用户创建的报名
        var reg = await _registrationRepository.GetFirstAsync(r => r.Id == person.RegistrationId);
        if (reg == null || reg.CreatedUserId != userId) throw Oops.Bah("无权操作");
        
        person.Name = input.Name;
        person.IdCard = input.IdCardNumber;
        person.Gender = input.Gender;
        person.Phone = input.Mobile;
        person.UpdatedTime = DateTime.Now;
        person.UpdatedUserId = userId;
        
        return await _personRepository.UpdateAsync(person);
    }

    /// <summary>
    /// 获取我的已报赛事列表
    /// </summary>
    /// <returns></returns>
    [HttpGet("my-events")]
    public async Task<PageResult<MyEventListDto>> GetMyEventList([FromQuery] int page = 1, [FromQuery] int pageSize = 10)
    {
        var userId = GetCurrentUserId();
        
        var query = _registrationRepository.AsQueryable()
            .LeftJoin<EventInfo>((r, e) => r.EventId == e.Id)
            .Where(r => r.CreatedUserId == userId && !r.DeleteMark)
            .OrderByDescending(r => r.RegistrationTime)
            .Select((r, e) => new MyEventListDto
            {
                RegistrationId = r.Id,
                EventId = r.EventId,
                EventName = e.EventName,
                CoverImage = e.CoverImage,
                RegistrationStatus = r.RegistrationStatus,
                PaymentStatus = r.PaymentStatus,
                RegistrationTime = r.RegistrationTime,
                ProjectCount = SqlFunc.Subqueryable<EventRegistrationItem>().Where(i => i.RegistrationId == r.Id).Count()
            });

        return await query.ToPagedListAsync(new Pagination { PageNo = page, PageSize = pageSize });
    }

    /// <summary>
    /// 获取报名详情（包含参赛人）
    /// </summary>
    [HttpGet("my-registration/{registrationId}")]
    public async Task<RegistrationDetailDto> GetRegistrationDetail(long registrationId)
    {
        var userId = GetCurrentUserId();
        
        var reg = await _registrationRepository.AsQueryable()
            .LeftJoin<EventInfo>((r, e) => r.EventId == e.Id)
            .Where(r => r.Id == registrationId && r.CreatedUserId == userId)
            .Select((r, e) => new {
                r.Id,
                r.EventId,
                e.EventName,
                e.CoverImage,
                r.RegistrationStatus,
                r.PaymentStatus,
                r.TotalAmount,
                r.OrderNo,
                r.RegistrationTime,
                r.ReviewRemark,
                // 为了计算 EventStatus
                RegStart = e.RegistrationStartTime,
                RegEnd = e.RegistrationEndTime,
                MatchStart = e.MatchStartTime,
                MatchEnd = e.MatchEndTime
            })
            .FirstAsync();
            
        if (reg == null) throw Oops.Bah("报名记录不存在");
        
        // 计算 EventStatus
        EventStatus status = EventStatus.Enrolling;
        var now = DateTime.Now;
        if (now >= reg.RegStart && now <= reg.RegEnd) status = EventStatus.Enrolling;
        else if (now >= reg.MatchStart && now <= reg.MatchEnd) status = EventStatus.Ongoing;
        else if (now > reg.MatchEnd) status = EventStatus.Ended;

        // 获取 Items 和 Persons
        var items = await _registrationItemRepository.AsQueryable()
            .Where(i => i.RegistrationId == registrationId)
            .ToListAsync();
            
        var persons = await _personRepository.AsQueryable()
            .Where(p => p.RegistrationId == registrationId)
            .ToListAsync();

        return new RegistrationDetailDto
        {
            RegistrationId = reg.Id,
            EventId = reg.EventId,
            EventName = reg.EventName,
            CoverImage = reg.CoverImage,
            EventStatus = status,
            RegistrationStatus = reg.RegistrationStatus,
            PaymentStatus = reg.PaymentStatus,
            TotalAmount = reg.TotalAmount,
            OrderNo = reg.OrderNo,
            RegistrationTime = reg.RegistrationTime,
            ReviewRemark = reg.ReviewRemark,
            Items = items.Select(i => new RegistrationItemDto
            {
                Id = i.Id,
                ProjectName = i.ProjectName,
                GroupName = i.GroupName,
                Price = i.UnitPrice, // 单价
                Persons = persons.Where(p => p.RegistrationItemId == i.Id).Select(p => new RegistrationPersonDto
                {
                    Id = p.Id,
                    Name = p.Name,
                    IdCardNumber = p.IdCard,
                    Gender = p.Gender,
                    Mobile = p.Phone
                }).ToList()
            }).ToList()
        };
    }

    /// <summary>
    /// 查询报名状态
    /// </summary>
    /// <param name="registrationId"></param>
    /// <returns></returns>
    [HttpGet("status/{registrationId}")]
    public async Task<RegistrationStatusDto> GetRegistrationStatus(long registrationId)
    {
        var userId = GetCurrentUserId();
        var reg = await _registrationRepository.GetFirstAsync(r => r.Id == registrationId && r.CreatedUserId == userId);
        if (reg == null) throw Oops.Bah("报名记录不存在");

        return new RegistrationStatusDto
        {
            RegistrationId = reg.Id,
            RegistrationStatus = reg.RegistrationStatus,
            PaymentStatus = reg.PaymentStatus,
            RejectReason = reg.ReviewRemark
        };
    }

    /// <summary>
    /// 取消报名
    /// </summary>
    /// <param name="registrationId"></param>
    /// <returns></returns>
    [HttpPost("cancel/{registrationId}")]
    public async Task<bool> CancelRegistration(long registrationId)
    {
        var userId = GetCurrentUserId();
        var reg = await _registrationRepository.GetFirstAsync(r => r.Id == registrationId && r.CreatedUserId == userId);
        if (reg == null) throw Oops.Bah("报名记录不存在");

        // 校验状态：只有待提交、待审核、未支付状态可直接取消
        // 已支付状态需走退款流程（暂不实现）
        if (reg.PaymentStatus == 1) throw Oops.Bah("已支付订单请联系客服退款");
        if (reg.RegistrationStatus == 4) throw Oops.Bah("订单已取消，无需重复操作");

        reg.RegistrationStatus = 4; // 4=已取消
        reg.UpdatedTime = DateTime.Now;
        reg.UpdatedUserId = userId;

        return await _registrationRepository.UpdateAsync(reg);
    }

    /// <summary>
    /// 选择支付方式
    /// </summary>
    /// <remarks>
    /// 用于选择赛事报名的支付方式
    /// - 选择微信支付时，必须提供有效的 OpenId
    /// - OpenId 的格式验证由 DTO 自动处理
    /// </remarks>
    /// <param name="input">选择支付方式的输入参数</param>
    /// <returns>操作是否成功</returns>
    [HttpPost("select-payment-method")]
    [UnitOfWork]
    public async Task<bool> SelectPaymentMethod([FromBody] SelectPaymentMethodInput input)
    {
        var userId = GetCurrentUserId();
        var reg = await _registrationRepository.GetFirstAsync(r => r.Id == input.RegistrationId && r.CreatedUserId == userId);
        if (reg == null) throw Oops.Bah("报名记录不存在");

        if (reg.PaymentStatus == 1) throw Oops.Bah("订单已支付，无法修改支付方式");
        if (reg.RegistrationStatus == 4) throw Oops.Bah("订单已取消");

        // 如果选择微信支付，验证 OpenId 是否提供
        if (input.PaymentMethod == 2)
        {
            if (string.IsNullOrWhiteSpace(input.OpenId))
            {
                _logger.LogWarning("选择微信支付时未提供 OpenId，报名ID={RegistrationId}", input.RegistrationId);
                throw Oops.Bah("选择微信支付时必须提供 OpenId");
            }
        }

        reg.PaymentMethod = input.PaymentMethod;
        reg.UpdatedTime = DateTime.Now;
        reg.UpdatedUserId = userId;

        _logger.LogInformation("成功修改支付方式，报名ID={RegistrationId}，支付方式={PaymentMethod}", 
            input.RegistrationId, input.PaymentMethod);

        return await _registrationRepository.UpdateAsync(reg);
    }

    /// <summary>
    /// 同步支付状态（主动查询微信支付）
    /// </summary>
    [HttpPost("sync-payment/{registrationId}")]
    [UnitOfWork]
    public async Task<bool> SyncPaymentStatus(long registrationId)
    {
        var userId = GetCurrentUserId();
        var reg = await _registrationRepository.GetFirstAsync(r => r.Id == registrationId && r.CreatedUserId == userId);
        if (reg == null) throw Oops.Bah("报名记录不存在");

        if (reg.PaymentStatus == 1) return true; // 已支付无需同步

        var evt = await _eventRepository.GetFirstAsync(e => e.Id == reg.EventId);
        if (evt == null) throw Oops.Bah("赛事不存在");

        WeChatPayConfig? payConfig = null;
        if (evt.MerchantId.HasValue)
        {
            payConfig = await _weChatPayConfigRepository.GetFirstAsync(x => 
                x.MerchantId == evt.MerchantId.Value && 
                x.Status == AvailabilityStatus.Enable && 
                !x.DeleteMark);
        }

        if (payConfig == null)
        {
            payConfig = await _weChatPayConfigRepository.GetFirstAsync(x => 
                x.Status == AvailabilityStatus.Enable && !x.DeleteMark);
        }

        if (payConfig == null) throw Oops.Bah("微信支付配置未设置");

        var queryResult = await _weChatPayService.QueryOrderAsync(payConfig, reg.OrderNo);
        if (queryResult.Success && queryResult.TradeState == "SUCCESS")
        {
            // 更新支付状态
            reg.PaymentStatus = 1;
            reg.PaymentTime = queryResult.SuccessTime?.DateTime;
            reg.RegistrationRemark = queryResult.TransactionId; // 将第三方交易号存储在备注字段
            reg.RegistrationStatus = 1; // 待审核
            reg.UpdatedTime = DateTime.Now;
            reg.UpdatedUserId = userId;

            await _registrationRepository.UpdateAsync(reg);
            _logger.LogInformation($"订单 {reg.OrderNo} 支付状态同步成功，微信交易号：{queryResult.TransactionId}");
            return true;
        }

        return false;
    }

    /// <summary>
    /// 微信支付回调通知处理
    /// </summary>
    [HttpPost("wechat-pay-notify")]
    [AllowAnonymous]
    [UnitOfWork]
    [NonAction]
    public async Task<object> WeChatPayNotify()
    {
        try
        {
            using var reader = new StreamReader(_httpContextAccessor.HttpContext.Request.Body);
            var body = await reader.ReadToEndAsync();
            
            var headers = _httpContextAccessor.HttpContext.Request.Headers;
            var timestamp = headers["Wechatpay-Timestamp"].FirstOrDefault();
            var nonce = headers["Wechatpay-Nonce"].FirstOrDefault();
            var signature = headers["Wechatpay-Signature"].FirstOrDefault();
            var serialNumber = headers["Wechatpay-Serial"].FirstOrDefault();

            if (string.IsNullOrEmpty(timestamp) || string.IsNullOrEmpty(nonce) || 
                string.IsNullOrEmpty(signature) || string.IsNullOrEmpty(serialNumber))
            {
                _logger.LogWarning("微信支付回调通知参数不完整");
                return new { code = "FAIL", message = "参数不完整" };
            }

            // 获取默认支付配置（后续可根据订单号找到对应的商户配置）
            var payConfig = await _weChatPayConfigRepository.GetFirstAsync(x => 
                x.Status == AvailabilityStatus.Enable && !x.DeleteMark);
            if (payConfig == null)
            {
                _logger.LogError("微信支付配置未找到");
                return new { code = "FAIL", message = "支付配置未找到" };
            }

            var notifyRequest = new WeChatPayNotifyRequest
            {
                Timestamp = timestamp,
                Nonce = nonce,
                Signature = signature,
                SerialNumber = serialNumber,
                Body = body
            };

            // 验证签名
            var isValid = await _weChatPayService.VerifyPayNotifyAsync(payConfig, notifyRequest);
            if (!isValid)
            {
                _logger.LogWarning("微信支付回调签名验证失败");
                return new { code = "FAIL", message = "签名验证失败" };
            }

            // 解密通知数据
            var notifyData = await _weChatPayService.DecryptPayNotifyDataAsync(payConfig, notifyRequest);
            if (notifyData == null || notifyData.TradeState != "SUCCESS")
            {
                _logger.LogWarning("微信支付回调数据无效或交易未成功");
                return new { code = "SUCCESS", message = "成功" };
            }

            // 根据商户订单号查找报名记录
            var reg = await _registrationRepository.GetFirstAsync(r => r.OrderNo == notifyData.OutTradeNo);
            if (reg == null)
            {
                _logger.LogWarning($"未找到订单：{notifyData.OutTradeNo}");
                return new { code = "SUCCESS", message = "成功" };
            }

            if (reg.PaymentStatus == 1)
            {
                _logger.LogInformation($"订单 {reg.OrderNo} 已处理过支付回调");
                return new { code = "SUCCESS", message = "成功" };
            }

            // 更新支付状态
            reg.PaymentStatus = 1;
            reg.PaymentTime = notifyData.SuccessTime?.DateTime;
            reg.RegistrationRemark = notifyData.TransactionId; // 将第三方交易号存储在备注字段
            reg.RegistrationStatus = 1; // 待审核
            reg.UpdatedTime = DateTime.Now;

            await _registrationRepository.UpdateAsync(reg);
            _logger.LogInformation($"订单 {reg.OrderNo} 支付成功，微信交易号：{notifyData.TransactionId}");

            return new { code = "SUCCESS", message = "成功" };
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "处理微信支付回调通知异常");
            return new { code = "FAIL", message = "处理失败" };
        }
    }

    /// <summary>
    /// 从请求中获取 OpenId 参数
    /// </summary>
    /// <remarks>
    /// 支持从以下来源获取 OpenId（按优先级顺序）：
    /// 1. 查询字符串 (QueryString)：openId 或 openid 参数
    /// 2. 表单数据 (FormData)：openId 或 openid 字段
    /// 3. 请求体 (JSON)：openId 或 openid 属性
    /// 4. 用户 Claims（兜底方案）：openid claim
    /// </remarks>
    /// <returns>获取到的 OpenId 值，如果未找到则返回空字符串</returns>
    private string GetOpenIdFromRequest()
    {
        var httpContext = _httpContextAccessor.HttpContext;
        if (httpContext == null)
        {
            _logger.LogWarning("无法获取 HttpContext，OpenId 获取失败");
            return string.Empty;
        }

        // 1. 尝试从查询字符串获取
        var openId = httpContext.Request.Query["openId"].FirstOrDefault() ?? 
                     httpContext.Request.Query["openid"].FirstOrDefault();
        if (!string.IsNullOrEmpty(openId))
        {
            _logger.LogDebug("从查询字符串获取到 OpenId");
            return openId;
        }

        // 2. 尝试从表单数据获取
        if (httpContext.Request.HasFormContentType)
        {
            openId = httpContext.Request.Form["openId"].FirstOrDefault() ?? 
                     httpContext.Request.Form["openid"].FirstOrDefault();
            if (!string.IsNullOrEmpty(openId))
            {
                _logger.LogDebug("从表单数据获取到 OpenId");
                return openId;
            }
        }

        // 3. 尝试从请求体 JSON 中获取（需要先读取）
        // 注意：为了避免多次读取请求体，这里暂时不实现
        // 如果需要从 JSON 中获取，可以在具体接口的 DTO 中添加 openId 字段

        // 4. 兜底方案：从用户 Claims 中获取
        openId = httpContext.User?.FindFirst("openid")?.Value;
        if (!string.IsNullOrEmpty(openId))
        {
            _logger.LogDebug("从用户 Claims 中获取到 OpenId");
            return openId;
        }

        _logger.LogWarning("未在请求中找到 OpenId 参数");
        return string.Empty;
    }

    /// <summary>
    /// 验证 OpenId 参数的有效性
    /// </summary>
    /// <remarks>
    /// 验证规则：
    /// 1. OpenId 不能为空或空白字符串
    /// 2. OpenId 长度必须在合理范围内（微信 OpenId 通常为 28 个字符左右）
    /// 3. OpenId 只能包含字母、数字和下划线
    /// </remarks>
    /// <param name="openId">待验证的 OpenId</param>
    /// <param name="errorMessage">验证失败时的错误信息</param>
    /// <returns>验证通过返回 true，否则返回 false</returns>
    private bool ValidateOpenId(string openId, out string errorMessage)
    {
        errorMessage = string.Empty;

        // 验证是否为空
        if (string.IsNullOrWhiteSpace(openId))
        {
            errorMessage = "OpenId 参数不能为空";
            _logger.LogWarning("OpenId 验证失败：参数为空");
            return false;
        }

        // 验证长度（微信 OpenId 通常为 28 个字符，允许一定的波动范围）
        if (openId.Length < 10 || openId.Length > 50)
        {
            errorMessage = $"OpenId 参数长度不合法，当前长度：{openId.Length}";
            _logger.LogWarning("OpenId 验证失败：长度不合法，长度={Length}", openId.Length);
            return false;
        }

        // 验证格式（只能包含字母、数字和下划线）
        foreach (char c in openId)
        {
            if (!char.IsLetterOrDigit(c) && c != '_' && c != '-')
            {
                errorMessage = "OpenId 参数格式不合法，只能包含字母、数字、下划线和连字符";
                _logger.LogWarning("OpenId 验证失败：格式不合法，OpenId={OpenId}", openId);
                return false;
            }
        }

        _logger.LogDebug("OpenId 验证通过");
        return true;
    }

    private EventStatus CalculateEventStatus(EventInfo e)
    {
        var now = DateTime.Now;
        if (now >= e.RegistrationStartTime && now <= e.RegistrationEndTime) return EventStatus.Enrolling; // 报名中
        if (now >= e.MatchStartTime && now <= e.MatchEndTime) return EventStatus.Ongoing; // 比赛中
        if (now > e.MatchEndTime) return EventStatus.Ended; // 已结束
        return EventStatus.Enrolling; // 默认? 或者新增未开始状态
    }
}