import logger from "../utils/logger";

export interface IErrorHandlerOptions {
  sendProductionErrors: boolean;
}

export default (
  isProdEnv: boolean,
  options: IErrorHandlerOptions = {
    sendProductionErrors: false,
  },
) => (err, req, res, next) => {
  if (res.headersSent) {
    return next(err);
  }

  res.status(err.status || 500);
  !isProdEnv && logger.debug(err);

  const locals =
    isProdEnv
      ? {
        error: options.sendProductionErrors ? err : {},
        message: options.sendProductionErrors
          ? err.message
          : "An error has occurred",
      }
      : {
        error: err,
        message: err.message,
        stack: err.stack,
      };

  if (req.headers["content-type"] === "application/json") {
    return res.json(locals);
  }

  return res.render("error", locals);
};