import { Request, Response, NextFunction } from 'express';
import jwt from 'jsonwebtoken';

declare global {
  namespace Express {
    interface Request {
      user?: {
        id: string;
        email: string;
        perfil: string;
      };
    }
  }
}

export const extractUser = (req: Request, res: Response, next: NextFunction) => {
  try {
    const token = req.headers.authorization?.replace('Bearer ', '');
    if (!token) {
      return res.status(401).json({ error: "Token não fornecido" });
    }

    const decoded = jwt.verify(token, process.env.JWT_SECRET || 'default-secret') as jwt.JwtPayload;
    req.user = {
      id: decoded.id,
      email: decoded.email,
      perfil: decoded.perfil
    };
    next();
  } catch (error) {
    return res.status(401).json({ error: "Token inválido" });
  }
};