import type { Response, NextFunction } from "express";
import jwt from "jsonwebtoken";
import type { AppRequest, AuthPayload } from "../types/context.js";

export function requireAuth(req: AppRequest, res: Response, next: NextFunction): void {
  const token = req.cookies?.token as string | undefined;

  if (!token) {
    res.status(401).json({ message: "Non authentifié." });
    return;
  }

  try {
    const secret = process.env.JWT_SECRET as string;
    const payload = jwt.verify(token, secret) as AuthPayload;
    req.user = payload;
    next();
  } catch {
    res.status(401).json({ message: "Token invalide ou expiré." });
  }
}

export function requireRole(...roles: AuthPayload["role"][]) {
  return (req: AppRequest, res: Response, next: NextFunction): void => {
    if (!req.user || !roles.includes(req.user.role)) {
      res.status(403).json({ message: "Accès refusé." });
      return;
    }
    next();
  };
}