src/auth/middleware.ts

// backend/src/auth/middleware.ts
import { Request, Response, NextFunction } from "express";
import jwt from "jsonwebtoken";

const ACCESS_SECRET = process.env.JWT_SECRET!;

export function adminAuth(req: Request, res: Response, next: NextFunction) {
  const authHeader = req.headers.authorization;
  if (!authHeader?.startsWith("Bearer ")) {
    return res.status(401).json({ error: "Missing or invalid token" });
  }

  const token = authHeader.split(" ")[1];
  try {
    const decoded = jwt.verify(token, ACCESS_SECRET);
    req.user = decoded;
    next();
  } catch (err: any) {
    return res.status(401).json({ error: "Token verification failed", details: err.message });
  }
}