const jwt = require('jsonwebtoken');

function authMiddleware(req, res, next) {
  const authHeader = req.headers.authorization;
  if (!authHeader || !authHeader.startsWith('Bearer ')) {
    return res.status(401).json({ success: false, message: 'No access token provided' });
  }

  const token = authHeader.split(' ')[1];
  try {
    const payload = jwt.verify(token, process.env.JWT_SECRET);
    req.user = payload; // Attach user info to request
    next();
  } catch (error) {
    return res.status(401).json({ success: false, message: 'Invalid or expired access token' });
  }
}

module.exports = authMiddleware;