File: backend/dotnet/Middleware/ExceptionHandlingMiddleware.cs

using System.Net;
using Jdb.Api.DTOs;

namespace Jdb.Api.Middleware
{
    public class ExceptionHandlingMiddleware
    {
        private readonly RequestDelegate _next;
        private readonly ILogger<ExceptionHandlingMiddleware> _logger;

        public ExceptionHandlingMiddleware(RequestDelegate next, ILogger<ExceptionHandlingMiddleware> logger)
        {
            _next = next;
            _logger = logger;
        }

        public async Task InvokeAsync(HttpContext context)
        {
            try
            {
                await _next(context);
            }
            catch (Exception exception)
            {
                _logger.LogError(exception, "Unhandled request error");
                context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
                context.Response.ContentType = "application/json";
                await context.Response.WriteAsJsonAsync(new ApiResponse<object>
                {
                    Code = StatusCodes.Status500InternalServerError,
                    Data = null,
                    Message = "Erro interno no servidor."
                });
            }
        }
    }
}