ANTOOZA-BACKEND/Application/Features/Admin/Store/GameCatalog/GetByGame/Handler.cs

using Application.Abstractions.Data;
using Application.Abstractions.Messaging;
using Microsoft.EntityFrameworkCore;
using SharedKernel.Results;

namespace Application.Features.Admin.Store.GameCatalog.GetByGame;

internal sealed class Handler(IAppDbContext db) : IQueryHandler<Query, Result<Response>>
{
    public async Task<Result<Response>> Handle(Query request, CancellationToken ct)
    {
        var game = await db.Game
            .AsNoTracking()
            .Where(c => c.ID == request.GameID)
            .Select(c => new
            {
                c.ID,
                c.KorName,
                c.Code,
                c.ApiCommissionRate
            })
            .FirstOrDefaultAsync(ct);

        if (game is null)
        {
            return Result.Failure<Response>(Error.NotFound("Game.NotFound", "게임을 찾을 수 없습니다."));
        }

        var list = await db.GameProductCatalog
            .AsNoTracking()
            .Where(c => c.GameID == request.GameID)
            .OrderBy(c => c.ProductID)
            .Select(c => new Response.Row(c.ID, c.ProductID, c.Price, c.IsActive, c.CreatedAt, c.UpdatedAt))
            .ToListAsync(ct);

        return Result.Success(new Response(game.ID, game.KorName, game.Code, game.ApiCommissionRate, list));
    }
}