const jwt = require("jsonwebtoken");
const { User } = require("../models");

const authenticate = async (req, res, next) => {
  try {
    const token = req.header("Authorization")?.replace("Bearer ", "");
    if (!token) {
      return res.status(401).json({ message: "Access denied" });
    }

    const decoded = jwt.verify(token, process.env.JWT_SECRET);
    const user = await User.findByPk(decoded.id);
    if (!user) {
      return res.status(401).json({ message: "Invalid token" });
    }

    req.user = user;
    next();
  } catch (error) {
    res.status(401).json({ message: "Invalid token" });
  }
};

const authorizeAdmin = (req, res, next) => {
  if (req.user.role !== "admin") {
    return res.status(403).json({ message: "Admin access required" });
  }
  next();
};

const authorizeManager = (req, res, next) => {
  if (req.user.role !== "admin" && req.user.role !== "manager") {
    return res.status(403).json({ message: "Manager access required" });
  }
  next();
};

module.exports = { authenticate, authorizeAdmin, authorizeManager };