using YD_Event.Application.Auth;
using YD_Event.Application.Client.Dtos;

namespace YD_Event.Application.Client;

/// <summary>
/// 小程序裁判执裁报名接口。
/// </summary>
[ApiDescriptionSettings("微信小程序接口")]
[Authorize]
public class RefereeController : IDynamicApiController
{
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.AppUser> _userRepository;
    private readonly ISqlSugarRepository<EventInfo> _eventRepository;
    private readonly ISqlSugarRepository<RefereeApplication> _applicationRepository;
    private readonly ISqlSugarRepository<YD_Event.Core.Entities.Referee> _refereeRepository;
    private readonly ISqlSugarRepository<EventReferee> _eventRefereeRepository;
    private readonly AuthManager _authManager;
    private readonly IIdGenerator _idGenerator;

    public RefereeController(
        ISqlSugarRepository<YD_Event.Core.Entities.AppUser> userRepository,
        ISqlSugarRepository<EventInfo> eventRepository,
        ISqlSugarRepository<RefereeApplication> applicationRepository,
        ISqlSugarRepository<YD_Event.Core.Entities.Referee> refereeRepository,
        ISqlSugarRepository<EventReferee> eventRefereeRepository,
        AuthManager authManager,
        IIdGenerator idGenerator)
    {
        _userRepository = userRepository;
        _eventRepository = eventRepository;
        _applicationRepository = applicationRepository;
        _refereeRepository = refereeRepository;
        _eventRefereeRepository = eventRefereeRepository;
        _authManager = authManager;
        _idGenerator = idGenerator;
    }

    [HttpGet("applications")]
    [DisplayName("获取我的执裁报名")]
    public async Task<RefereeApplicationListOutput> GetApplications()
    {
        var userId = await EnsureRefereeAsync();
        var applications = await _applicationRepository.AsQueryable()
            .Where(x => x.RefereeUserId == userId && x.Status == AvailabilityStatus.Enable)
            .OrderByDescending(x => x.CreatedTime)
            .ToListAsync();

        var eventIds = applications.Select(x => x.EventId).Distinct().ToList();
        var events = eventIds.Count == 0
            ? new List<EventInfo>()
            : await _eventRepository.AsQueryable().Where(x => eventIds.Contains(x.Id)).ToListAsync();
        var eventMap = events.ToDictionary(x => x.Id);

        var rows = applications.Select(x =>
        {
            eventMap.TryGetValue(x.EventId, out var evt);
            return new RefereeApplicationDto
            {
                Id = x.Id,
                ApplicationId = x.Id,
                EventId = x.EventId,
                EventName = evt?.EventName ?? string.Empty,
                CoverImage = evt?.CoverImage,
                Address = evt?.DetailAddress,
                EventStatus = evt == null ? 0 : (int)evt.EventStatus,
                ApplicationStatus = x.ApplicationStatus,
                ApplicationStatusText = ApplicationStatusText(x.ApplicationStatus),
                AppliedAt = x.CreatedTime,
                MatchStartTime = evt?.MatchStartTime ?? DateTime.MinValue,
                MatchEndTime = evt?.MatchEndTime ?? DateTime.MinValue
            };
        }).ToList();

        return new RefereeApplicationListOutput { Rows = rows, Total = rows.Count };
    }

    [HttpPost("applications/apply")]
    [UnitOfWork]
    [DisplayName("报名执裁")]
    public async Task<object> Apply([FromBody] RefereeApplyInput input)
    {
        var userId = await EnsureRefereeAsync();
        var evt = await _eventRepository.GetFirstAsync(x => x.Id == input.EventId && x.Status == AvailabilityStatus.Enable);
        if (evt == null) throw Oops.Bah("赛事不存在");
        if (evt.EventStatus != EventStatus.Enrolling) throw Oops.Bah("当前赛事不在执裁报名时间内");

        var exists = await _applicationRepository.IsAnyAsync(x =>
            x.EventId == input.EventId && x.RefereeUserId == userId && x.ApplicationStatus != 4);
        if (exists) throw Oops.Bah("已报名执裁当前赛事");

        var referee = await _refereeRepository.GetFirstAsync(x => x.AppUserId == userId);
        if (referee == null) throw Oops.Bah("裁判档案不存在，请先完善裁判资料");

        var application = new RefereeApplication
        {
            Id = _idGenerator.NextId(),
            EventId = input.EventId,
            RefereeUserId = userId,
            // 小程序报名无需后台审批，提交成功即成为赛事裁判。
            ApplicationStatus = 2,
            Status = AvailabilityStatus.Enable,
            CreatedUserId = userId,
            CreatedTime = DateTime.Now
        };
        await _applicationRepository.InsertAsync(application);

        if (!await _eventRefereeRepository.IsAnyAsync(x => x.EventId == input.EventId && x.RefereeId == referee.Id))
        {
            await _eventRefereeRepository.InsertAsync(new EventReferee
            {
                Id = _idGenerator.NextId(),
                EventId = input.EventId,
                RefereeId = referee.Id,
                RefereeApplicationId = application.Id,
                SourceType = 2,
                Status = AvailabilityStatus.Enable,
                CreatedUserId = userId,
                CreatedTime = DateTime.Now
            });
        }

        return new { success = true };
    }

    private async Task<long> EnsureRefereeAsync()
    {
        var userId = _authManager.UserId;
        var user = await _userRepository.GetFirstAsync(x => x.Id == userId);
        if (user == null) throw Oops.Bah("用户不存在");
        if (user.MiniProgramRole != MiniProgramRole.Referee) throw Oops.Bah("当前账号不是裁判身份");
        return userId;
    }

    private static string ApplicationStatusText(int status) => status switch
    {
        2 => "报名成功",
        3 => "报名未通过",
        4 => "已取消",
        _ => "待审批"
    };
}