/**
 * Copyright (c) 2026 Niolla
 * All rights reserved.
 *
 * This source code is proprietary and confidential.
 * Unauthorized copying, modification, distribution, or use
 * of this file, via any medium, is strictly prohibited.
 */

// app/utils/jwt.util.js

const jwt = require("jsonwebtoken");
require("dotenv").config();

const JWT_SECRET = process.env.JWT_SECRET || "your_jwt_secret_key";
const JWT_EXPIRES_IN = process.env.JWT_EXPIRES_IN || "1d"; // token validity

/**
 * Generate JWT token
 * @param {Object} payload - usually { id, email, role }
 * @returns string
 */
const generateToken = (payload) => {
  return jwt.sign(payload, JWT_SECRET, { expiresIn: JWT_EXPIRES_IN });
};

/**
 * Verify JWT token
 * @param {string} token
 * @returns payload or throws error
 */
const verifyToken = (token) => {
  return jwt.verify(token, JWT_SECRET);
};

module.exports = { generateToken, verifyToken };