ANTOOZA-BACKEND/Application/Features/Api/TrackRecord/GetTrackRecord/Handler.cs

using Application.Abstractions.Data;
using Application.Abstractions.Messaging;
using Domain.Entities.Members;
using Microsoft.EntityFrameworkCore;

namespace Application.Features.Api.TrackRecord.GetTrackRecord;

internal sealed class Handler(IAppDbContext db) : IQueryHandler<Query, Response>
{
    public async Task<Response> Handle(Query request, CancellationToken ct)
    {
        var sid = request.SID?.Trim() ?? string.Empty;

        var row = await db.MemberTrackRecord.AsNoTracking()
            .Where(c => c.Member.SID == sid)
            .Select(c => new
            {
                c.Tier,
                c.HitRate,
                c.Predictions,
                c.Hits,
                c.Misses,
                c.Voids,
                c.CurrentStreak,
                c.BestStreak
            })
            .FirstOrDefaultAsync(ct);

        if (row is null)
        {
            return new Response { SID = sid, HasRecord = false };
        }

        return new Response
        {
            SID = sid,
            HasRecord = true,
            Tier = row.Tier.ToString(),
            TierCode = (byte)row.Tier,
            HitRate = row.HitRate,
            Predictions = row.Predictions,
            Hits = row.Hits,
            Misses = row.Misses,
            Voids = row.Voids,
            CurrentStreak = row.CurrentStreak,
            BestStreak = row.BestStreak
        };
    }
}