using Microsoft.AspNetCore.Mvc;
using YD_Event.Application.Client.Dtos;
using YD_Event.Core.Entities;
using YD_Event.Core.Enum;
using SqlSugar;
using Furion.DatabaseAccessor;
using Microsoft.AspNetCore.Authorization;
using System.Security.Claims;
using Furion.FriendlyException;

namespace YD_Event.Application.Client;

/// <summary>
/// 小程序-个人中心接口
/// </summary>
[ApiDescriptionSettings("微信小程序接口")]
[Route("api/v1/mini-program/my")]
[Authorize(AuthenticationSchemes = "Bearer")] 
public class MyController : IDynamicApiController
{
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.AppUser> _appUserRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.Team> _teamRepository;
    private readonly ISqlSugarRepository<EventCertificate> _certificateRepository;
    private readonly ISqlSugarRepository<PointsRecord> _pointsRecordRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.Order> _orderRepository;
    private readonly ISqlSugarRepository<EventRegistration> _registrationRepository;
    private readonly ISqlSugarRepository<EventInfo> _eventRepository;
    private readonly IHttpContextAccessor _httpContextAccessor;

    public MyController(
        ISqlSugarRepository<YD_Event.Core.Entities.AppUser> appUserRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.Team> teamRepository,
        ISqlSugarRepository<EventCertificate> certificateRepository,
        ISqlSugarRepository<PointsRecord> pointsRecordRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.Order> orderRepository,
        ISqlSugarRepository<EventRegistration> registrationRepository,
        ISqlSugarRepository<EventInfo> eventRepository,
        IHttpContextAccessor httpContextAccessor)
    {
        _appUserRepository = appUserRepository;
        _teamRepository = teamRepository;
        _certificateRepository = certificateRepository;
        _pointsRecordRepository = pointsRecordRepository;
        _orderRepository = orderRepository;
        _registrationRepository = registrationRepository;
        _eventRepository = eventRepository;
        _httpContextAccessor = httpContextAccessor;
    }

    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>
    /// 获取个人主页信息
    /// </summary>
    /// <returns></returns>
    [HttpGet("profile")]
    public async Task<MyProfileDto> GetProfile()
    {
        var userId = GetCurrentUserId();
        // 注意：AuthAccount.Id 和 AppUser.UserId 关联。这里假设登录的是 AuthAccount，需要查 AppUser
        // 实际上 AppUser 表的 UserId 字段关联的是 AuthAccount 的 Id。
        // 但 AppUser 本身也有 Id。
        // 业务逻辑通常是：一个 AuthAccount 对应一个 AppUser。
        
        var user = await _appUserRepository.GetFirstAsync(u => u.UserId == userId);
        if (user == null) throw Oops.Bah("用户信息不存在");

        // 统计证书数量
        var certCount = await _certificateRepository.CountAsync(c => c.CreatedUserId == userId && c.CertificateStatus == 2);
        
        // 积分 (需计算积分总和，PointsRecord 表有 Points 字段，Type 1-加 2-减)
        // 简单计算：Sum(Type=1) - Sum(Type=2)
        var pointsIn = await _pointsRecordRepository.AsQueryable().Where(p => p.UserId == userId && p.Type == PointsOperationType.Acquire).SumAsync(p => p.Points);
        var pointsOut = await _pointsRecordRepository.AsQueryable().Where(p => p.UserId == userId && p.Type == PointsOperationType.Consume).SumAsync(p => p.Points);
        var pointsBalance = (int)(pointsIn - pointsOut);

        // 认证状态: AuditStatus: 0-待提交, 1-待审核, 2-通过, 3-拒绝. 
        int authStatus = 0;
        if (string.IsNullOrEmpty(user.Name) || string.IsNullOrEmpty(user.IdCardNumber))
        {
            authStatus = 0; // 未认证
        }
        else if (user.AuditStatus == AuditStatus.Pass)
        {
            authStatus = 1; // 已认证
        }
        else if (user.AuditStatus == AuditStatus.PendingAudit)
        {
            authStatus = 2; // 审核中
        }
        else 
        {
            authStatus = 3; // 失败/其他
        }

        return new MyProfileDto
        {
            NickName = user.NickName ?? "微信用户",
            Avatar = user.Avatar ?? "",
            Mobile = MaskMobile(user.Mobile),
            Points = pointsBalance,
            CertificateCount = certCount,
            AuthStatus = authStatus
        };
    }

    /// <summary>
    /// 获取实名认证信息
    /// </summary>
    /// <returns></returns>
    [HttpGet("auth")]
    public async Task<MyAuthInfoDto> GetAuthInfo()
    {
        var userId = GetCurrentUserId();
        var user = await _appUserRepository.GetFirstAsync(u => u.UserId == userId);
        if (user == null) throw Oops.Bah("用户信息不存在");

        return new MyAuthInfoDto
        {
            Name = user.Name,
            Mobile = user.Mobile,
            IdCardNumber = user.IdCardNumber, // 可以在前端脱敏
            IdCardImageUrl = user.IdCardImageUrl,
            AuditStatus = user.AuditStatus,
            AuditRemark = user.AuditRemark
        };
    }

    /// <summary>
    /// 提交实名认证
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("auth")]
    public async Task<bool> SubmitAuth([FromBody] SubmitAuthInput input)
    {
        var userId = GetCurrentUserId();
        var user = await _appUserRepository.GetFirstAsync(u => u.UserId == userId);
        if (user == null) throw Oops.Bah("用户信息不存在");

        if (user.AuditStatus == AuditStatus.Pass) throw Oops.Bah("已通过实名认证，无需重复提交");
        if (user.AuditStatus == AuditStatus.PendingAudit) throw Oops.Bah("审核中，请勿重复提交");

        user.Name = input.Name;
        user.Mobile = input.Mobile;
        user.IdCardNumber = input.IdCardNumber;
        user.IdCardImageUrl = input.IdCardImageUrl;
        user.AuditStatus = AuditStatus.PendingAudit; // 提交后变更为待审核
        user.UpdatedTime = DateTime.Now;
        
        return await _appUserRepository.UpdateAsync(user);
    }

    /// <summary>
    /// 我的团队列表
    /// </summary>
    /// <returns></returns>
    [HttpGet("teams")]
    public async Task<PageResult<MyTeamDto>> GetTeams([FromQuery] MyPageInput input)
    {
        var userId = GetCurrentUserId();
        // 逻辑：查找我是创建人(队长) 或 队员的团队
        // 目前 Team 表只有 CreatedUserId，假设 CreatedUserId 就是队长。
        // 如果有 TeamMember 表关联队员，需要联表。目前假设只查我创建的团队（根据原型图"我的团队"通常指我管理的）。
        // 如果原型包含"我加入的"，需要查 TeamMember。
        // 鉴于 TeamMember 实体未直接给出，这里先查 CreatedUserId = userId
        
        var query = _teamRepository.AsQueryable()
            .Where(t => t.CreatedUserId == userId && !t.DeleteMark)
            .Select(t => new MyTeamDto
            {
                Id = t.Id,
                Name = t.Name,
                EstablishedDate = t.EstablishedDate,
                IsLeader = true,
                MemberCount = 0 // 暂无 Member 表关联，置为 0 或需扩展
            });

        return await query.ToPagedListAsync(input);
    }

    /// <summary>
    /// 我的证书列表
    /// </summary>
    /// <returns></returns>
    [HttpGet("certificates")]
    public async Task<PageResult<MyCertificateDto>> GetCertificates([FromQuery] MyPageInput input)
    {
        var userId = GetCurrentUserId();
        
        // 联表查询 EventInfo 获取赛事名称
        var query = _certificateRepository.AsQueryable()
            .LeftJoin<EventInfo>((c, e) => c.EventId == e.Id)
            .Where(c => c.CreatedUserId == userId && c.CertificateStatus == 2 && !c.DeleteMark)
            .Select((c, e) => new MyCertificateDto
            {
                Id = c.Id,
                EventName = e.EventName,
                ProjectName = c.GroupName, // 暂时用 GroupName 代替 ProjectName，具体看 ProjectId 关联
                CertificateName = "荣誉证书", // 此时可根据 CertificateType 转义
                CertificateUrl = c.CertificateUrl,
                IssuedTime = c.IssuedTime
            })
            .OrderByDescending(c => c.IssuedTime);

        return await query.ToPagedListAsync(input);
    }

    /// <summary>
    /// 我的积分记录
    /// </summary>
    /// <returns></returns>
    [HttpGet("points")]
    public async Task<PageResult<MyPointsRecordDto>> GetPoints([FromQuery] MyPageInput input)
    {
        var userId = GetCurrentUserId();
        var query = _pointsRecordRepository.AsQueryable()
            .Where(p => p.UserId == userId && !p.DeleteMark)
            .Select(p => new MyPointsRecordDto
            {
                Id = p.Id,
                Title = p.Remark ?? (p.Type == PointsOperationType.Acquire ? "获取积分" : "消耗积分"),
                Points = p.Points,
                Type = (int)p.Type,
                CreatedTime = p.CreatedTime
            })
            .OrderByDescending(p => p.CreatedTime);

        return await query.ToPagedListAsync(input);
    }

    /// <summary>
    /// 我的订单列表
    /// </summary>
    /// <returns></returns>
    [HttpGet("orders")]
    public async Task<PageResult<MyOrderDto>> GetOrders([FromQuery] MyPageInput input)
    {
        var userId = GetCurrentUserId();
        var query = _orderRepository.AsQueryable()
            .LeftJoin<EventInfo>((o, e) => o.EventId == e.Id)
            .Where(o => o.CreatedUserId == userId && !o.DeleteMark)
            .Select((o, e) => new MyOrderDto
            {
                Id = o.Id,
                OrderNo = o.OrderNo,
                EventName = e.EventName,
                Amount = o.ActualAmount,
                Status = (int)o.OrderStatus,
                CreatedTime = o.CreatedTime
            })
            .OrderByDescending(o => o.CreatedTime);

        return await query.ToPagedListAsync(input);
    }

    /// <summary>
    /// 我的参赛记录
    /// </summary>
    /// <returns></returns>
    [HttpGet("registrations")]
    public async Task<PageResult<MyRegistrationDto>> GetRegistrations([FromQuery] MyPageInput input)
    {
        var userId = GetCurrentUserId();
        var query = _registrationRepository.AsQueryable()
            .LeftJoin<EventInfo>((r, e) => r.EventId == e.Id)
            .Where(r => r.CreatedUserId == userId && !r.DeleteMark)
            .Select((r, e) => new MyRegistrationDto
            {
                Id = r.Id,
                EventName = e.EventName,
                TeamName = r.TeamName,
                Status = r.RegistrationStatus,
                RegistrationTime = r.RegistrationTime,
                ProjectNames = "" // 暂空，需联表 EventRegistrationItem
            })
            .OrderByDescending(r => r.RegistrationTime);

        return await query.ToPagedListAsync(input);
    }

    private string MaskMobile(string mobile)
    {
        if (string.IsNullOrEmpty(mobile) || mobile.Length < 7) return mobile;
        return mobile.Substring(0, 3) + "****" + mobile.Substring(7);
    }
}