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

const authenticate = async (req, res, next) => {
  try {
    console.log("Authenticating request to:", req.path);
    const token = req.header("Authorization")?.replace("Bearer ", "");
    if (!token) {
      console.log("No token provided");
      return res.status(401).json({ message: "Access denied" });
    }

    console.log("Token received, verifying...");
    const decoded = jwt.verify(token, process.env.JWT_SECRET);
    console.log("Token decoded for user:", decoded.id);

    const user = await User.findByPk(decoded.id);
    if (!user) {
      console.log("User not found for token");
      return res.status(401).json({ message: "Invalid token" });
    }

    console.log("User authenticated:", user.username);
    req.user = user;
    next();
  } catch (error) {
    console.error("Authentication error:", error.message);
    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 };