import { runPrepQuery, numRows } from "../Utility/db.js";
import { Warn } from "./loggerUtility.js";
const users = {}
import jwt from 'jsonwebtoken';
const { sign, verify } = jwt;
const addUserToMemory = (userId, authToken) => {
    users[userId] = {userId, authToken}
}
const removeUser = (userId) => {
    if(users[userId]?.socket) {
        socket.destroy()
        delete users[userId]
        runPrepQuery("DELETE FROM users WHERE userId = ? LIMIT 1", [userId], (r,f,e) => {})
    }
}
const getUser = (userId) => {
    if(users[userId]) return users[userId]
    return false
}
export const getUserFromJwt = (jwt) => {
    try {
        const decoded = verify(jwt, process.env.JWT_SECRET)
        return getUser(decoded.userId)
    } catch (e) {
        console.log(e)
        return false
    }
    
    
}
export const setUserSocket = (socket, userId) => {
    socket.userId = userId
    users[userId].socket = socket
}
export const addUser = (userId) => {
    return new Promise((resolve, reject) => {
        runPrepQuery("SELECT * FROM users WHERE userId = ? LIMIT 0,1", [userId], async (r,f,e) => {
            if(!e) {
                let token
                if(!numRows(r)) {
                    token = sign({userId: userId}, process.env.JWT_SECRET)
                    runPrepQuery("INSERT INTO users (authToken, userId) VALUES(?,?)", [token, userId], async (r,f,e) => {
                        if(!e) {
                            return resolve({userId, authToken: token})
                        } 
                        return resolve(false)
                    })
                
                } else {
                    return resolve({userId, authToken: token})
                }
            }
        });
    })
    
}
export const loadUsersFromDB = () => {
    return new Promise((resolve, reject) => {
        runPrepQuery("SELECT * FROM users", [], async (r, f, e) => {
            if (!e) {
                if (numRows(r)) {
                    for(const row of r) {
                        users[row.userId] = row;
                    }
                } 
            } else {
                console.log(e);
            }
            resolve(true)
        });
    })
};