[Duelbits] Chat rain script

//////// SETTINGS - EDIT HERE ////////
let settings = {
    messages: ["gl", "gg", "GG", "Gl", "L", ":D", "w"], // Type here all the random messages you want it to send
    mintuesToWait: 9, // Set here the number of mintues you want the script to wait before each message
    randomFactor: 30, // Set here the number of seconds you want it to random increase/decrease the time better leave 30 (It is to make detection harder)

}
//////// ^^^ SETTINGS - EDIT HERE ^^^ ////////

let duelbits_data = JSON.parse(localStorage.getItem("persist:duelbits"));
let token = JSON.parse((duelbits_data.auth)).token;

let lastMessage = 0;
if(localStorage.getItem("last_message") != null) {
    lastMessage = parseInt(localStorage.getItem("last_message"));
}

let http = new XMLHttpRequest();
let socket = null;

function httpConnection() {
    let delay = localStorage.getItem("delay");
    if(delay != null && delay > Date.now())
        return;

    localStorage.setItem("delay", Date.now() + 1000);
    http.open("GET", "https://ws.duelbits.com/socket.io/?EIO=3&transport=polling&t=NFhz3BG", true);
    http.send();

    http.onreadystatechange = function () {
        if (this.readyState === 4 && this.status === 200) {
            let x = this.responseText;
            let obj = JSON.parse(x.slice(x.indexOf('{'), x.lastIndexOf('}') + 1));

            createConnection(obj.sid);
        }
    };
}

function createConnection(sid) {
    socket = new WebSocket("wss://ws.duelbits.com/socket.io/?EIO=3&transport=websocket&sid=" + sid);

    socket.onopen = (e) => {
        console.log("[Duelbits.com] Connection established!");
        socket.send("2probe");

        fetch("https://ws.duelbits.com/socket.io/?EIO=3&transport=polling&t=NFhz3BG&sid=" + sid, {
            "headers": {
                "accept": "*/*",
                "accept-language": "he-IL,he;q=0.9,en-US;q=0.8,en;q=0.7,nl;q=0.6",
                "content-type": "text/plain;charset=UTF-8",
                "sec-fetch-dest": "empty",
                "sec-fetch-mode": "cors",
                "sec-fetch-site": "same-site"
            },
            "referrer": "https://duelbits.com/",
            "referrerPolicy": "no-referrer-when-downgrade",
            "body": "314:420[\"authenticate\",\"" + token + "\"]",
            "method": "POST",
            "mode": "cors",
            "credentials": "include"
        });
    }

    socket.onmessage = (e) => {
        let message = e.data;

        if(message === "3probe") {
            socket.send("5");
            socket.send("421[\"chat:get\"]");
            socket.send(`422["authenticate","${token}"]`);
            return;
        }
    }

    socket.onclose = (e) => {
        console.log("[Duelbits.com] Connection closed reconnecting in 5 seconds!");
        setTimeout(httpConnection, 5000);
    }
}

function sendMessage(message) {
    if(socket == null || socket.readyState !== socket.OPEN)
        return;

    socket.send(`424["chat:send",{"body":"${message}"}]`);
}


setInterval(function() {
    if(socket != null && socket.readyState === socket.OPEN) {
        socket.send("2");

        if(lastMessage < Date.now()) {
            let random = (Math.random() > 0.5 ? -1:1) * parseInt(Math.random() * settings.randomFactor * 1000);

            lastMessage = Date.now() + 1000 * 60 * settings.mintuesToWait + random;
            localStorage.setItem("last_message", lastMessage);
            shuffleArray(settings.messages);
            sendMessage(settings.messages[0]);
        }
    }

}, 15 * 1000);

setTimeout(() => {
    httpConnection();
}, 2000);

function shuffleArray(array) {
    for (let i = array.length - 1; i > 0; i--) {
        const j = Math.floor(Math.random() * (i + 1));
        [array[i], array[j]] = [array[j], array[i]];
    }
}