import type { NextFunction, Request, Response } from "express";

export class HttpError extends Error {
  status: number;

  constructor(status: number, message: string) {
    super(message);
    this.status = status;
  }
}

export function errorHandler(
  err: unknown,
  _req: Request,
  res: Response,
  _next: NextFunction
) {
  if (err instanceof HttpError) {
    res.status(err.status).json({ error: err.message });
    return;
  }

  console.error(err);
  res.status(500).json({ error: "Internal server error" });
}