using YD_Event.Application.EventRecord.Dtos;
using YD_Event.Core.Entities;
using YD_Event.Core.Enum;

namespace YD_Event.Application.EventRecord;

/// <summary>
/// 参赛记录管理
/// </summary>
[ApiDescriptionSettings("用户管理", Name = "EventRecord", Order = 102)]
public class EventRecordService : IDynamicApiController, ITransient
{
    private readonly ISqlSugarRepository<EventRegistration> _registrationRep;
    private readonly ISqlSugarRepository<EventInfo> _eventRep;
    private readonly ISqlSugarRepository<EventCertificate> _certificateRep;

    public EventRecordService(ISqlSugarRepository<EventRegistration> registrationRep,
        ISqlSugarRepository<EventInfo> eventRep,
        ISqlSugarRepository<EventCertificate> certificateRep)
    {
        _registrationRep = registrationRep;
        _eventRep = eventRep;
        _certificateRep = certificateRep;
    }

    /// <summary>
    /// 分页查询参赛记录
    /// </summary>
    [HttpGet("page")]
    public async Task<PageResult<EventRecordOutput>> Page([FromQuery] EventRecordPageInput input)
    {
        if (!input.UserId.HasValue) return new PageResult<EventRecordOutput>();

        // Join EventRegistration and EventInfo
        var query = _registrationRep.AsQueryable()
            .LeftJoin<EventInfo>((r, e) => r.EventId == e.Id)
            .Where((r, e) => r.CreatedUserId == input.UserId)
            .WhereIF(!string.IsNullOrWhiteSpace(input.EventName), (r, e) => e.EventName.Contains(input.EventName))
            .WhereIF(input.StartTime.HasValue, (r, e) => e.MatchStartTime >= input.StartTime)
            .WhereIF(input.EndTime.HasValue, (r, e) => e.MatchStartTime <= input.EndTime)
            .OrderByDescending((r, e) => r.CreatedTime)
            .Select((r, e) => new EventRecordOutput
            {
                Id = r.Id,
                EventName = e.EventName,
                EventType = e.EventType.ToString(), 
                StartTime = e.MatchStartTime,
                EndTime = e.MatchEndTime,
                RegistrationStatus = r.RegistrationStatus,
                EventId = e.Id
            });

        return await query.ToPagedListAsync(input);
    }

    /// <summary>
    /// 获取证书列表
    /// </summary>
    [HttpGet("{registrationId}/certificates")]
    public async Task<List<CertificateOutput>> GetCertificates([FromRoute] long registrationId)
    {
        var certs = await _certificateRep.AsQueryable()
            .Where(c => c.RegistrationId == registrationId)
            .ToListAsync();

        return certs.Select(c => new CertificateOutput
        {
            Id = c.Id,
            Name = c.ParticipantName,
            AwardLevel = GetAwardLevelName(c.AwardLevel),
            CertificateType = GetCertificateTypeName(c.CertificateType),
            ImageUrl = c.CertificateUrl
        }).ToList();
    }

    private string GetAwardLevelName(int level)
    {
        return level switch
        {
            1 => "特等奖",
            2 => "一等奖",
            3 => "二等奖",
            4 => "三等奖",
            5 => "优秀奖",
            _ => "未知"
        };
    }

    private string GetCertificateTypeName(int type)
    {
        return type switch
        {
            1 => "冠军证书",
            2 => "亚军证书",
            3 => "季军证书",
            4 => "优胜证书",
            5 => "参与证书",
            _ => "未知"
        };
    }
}