export const errorHandler = (err, req, res, next) => {
  // eslint-disable-next-line no-console
  console.error('Hata:', err);
  const status = err.status || 500;
  const code = err.code || 'INTERNAL_ERROR';
  const message = err.message || 'Sunucu hatası';
  const response = {
    error: {
      code,
      message
    }
  };
  if (err.details) {
    response.error.details = err.details;
  }
  return res.status(status).json(response);
};