recipes-leemorgan-dev/src/lib/server/auth.js

import {redirect, error} from "@sveltejs/kit";
import jwt from "jsonwebtoken";
import {JWT_SECRET} from "$env/static/private";
import User from "$lib/server/models/User.js";

export default async function userAuth(cookies, rdrct = true){
    const userCookie = cookies.get("user");
    if(!userCookie){
        if(rdrct){
            redirect(303, "/");
        }else{
            error(401, "Unauthorized");
        }
    }

    let user;
    try{
        const userData = jwt.verify(userCookie, JWT_SECRET);
        user = await User.findOne({_id: userData.id, token: userData.token});
    }catch{
        if(rdrct){
            redirect(303, "/");
        }else{
            error(403, "Forbidden");
        }
    }

    if(!user){
        if(rdrct){
            redirect(303, "/");
        }else{
            error(401, "Unauthorized");
        }
    }

    return user;
}