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path: root/webAO/master.ts
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import FingerprintJS from '@fingerprintjs/fingerprintjs';

import { unescapeChat, safeTags } from './encoding';

declare global {
    interface Window {
        setServ: (ID: any) => void;
    }
}

const myStorage = window.localStorage;

const version = process.env.npm_package_version;

const MASTERSERVER_IP = 'master.aceattorneyonline.com:27014';

let hdid: string;

let selectedServer: number = -1;

const servers: { name: string, description: string, ip: string, port: number, ws_port: number, assets: string, online: string }[] = [];
servers[-2] = {
    name: 'Singleplayer', description: 'Build cases, try out new things', ip: '127.0.0.1', port: 50001, ws_port: 50001, assets: '', online: 'Online: 0/1',
};
servers[-1] = {
    name: 'Localhost', description: 'This is your computer on port 50001', ip: '127.0.0.1', port: 50001, ws_port: 50001, assets: '', online: 'Offline',
};

const fpPromise = FingerprintJS.load();
fpPromise
    .then((fp) => fp.get())
    .then((result) => {
        hdid = result.visitorId;

        check_https();

        fetch('http://servers.aceattorneyonline.com/servers')
            .then(cachedServerlist)
            .then((response) => loadServerlist(response))
            .catch(cachedServerlist);

        fetch('http://servers.aceattorneyonline.com/version')
            .then((response) => response.text())
            .then((response) => processVersion(response));

        // i don't need the ms to play alone
        setTimeout(() => checkOnline(-1, '127.0.0.1:50001'), 0);
    });

export function check_https() {
    if (document.location.protocol === 'https:') {
        document.getElementById('https_error').style.display = '';
        setTimeout(() => window.location.replace("http://web.aceattorneyonline.com/"), 5000);
    }
}

export function setServ(ID: number) {
    selectedServer = ID;

    if (document.getElementById(`server${ID}`).className === '') { checkOnline(ID, `${servers[ID].ip}:${servers[ID].ws_port}`); }

    document.getElementById('serverdescription_content').innerHTML = `<b>${servers[ID].online}</b><br>${safeTags(servers[ID].description)}`;
}
window.setServ = setServ;

function checkOnline(serverID: number, coIP: string) {
    let serverConnection: WebSocket;
    if (serverID !== -2) {
        try {
            serverConnection = new WebSocket(`ws://${coIP}`);
        } catch (SecurityError) {
            document.getElementById(`server${serverID}`).className = 'unavailable';
            return;
        }
    }

    // define what the callbacks do
    function onCOOpen() {
        document.getElementById(`server${serverID}`).className = 'available';
        serverConnection.send(`HI#${hdid}#%`);
        serverConnection.send('ID#webAO#webAO#%');
    }

    function onCOMessage(e: MessageEvent) {
        const comsg = e.data;
        const coheader = comsg.split('#', 2)[0];
        const coarguments = comsg.split('#').slice(1);
        if (coheader === 'PN') {
            servers[serverID].online = `Online: ${Number(coarguments[0])}/${Number(coarguments[1])}`;
            serverConnection.close();
            return;
        } if (coheader === 'BD') {
            servers[serverID].online = 'Banned';
            servers[serverID].description = coarguments[0];
            serverConnection.close();
            return;
        }
        if (serverID === selectedServer) {
            document.getElementById('serverdescription_content').innerHTML = `<b>${servers[serverID].online}</b><br>${safeTags(servers[serverID].description)}`;
        }
    }

    // assign the callbacks
    serverConnection.onopen = function () {
        onCOOpen();
    };

    serverConnection.onmessage = function (evt: MessageEvent) {
        onCOMessage(evt);
    };

    serverConnection.onerror = function (_evt: Event) {
        document.getElementById(`server${serverID}`).className = 'unavailable';
    };
}

function loadServerlist(thelist: { name: string, description: string, ip: string, port: number, ws_port: number, assets: string, online: string }[]) {
    localStorage.setItem('masterlist', JSON.stringify(thelist));
    processServerlist(thelist);
}

function cachedServerlist(response: Response) {
    if (!response.ok) {
        document.getElementById('ms_error').style.display = 'block';
        processServerlist(JSON.parse(localStorage.getItem('masterlist')));
        return;
    }
    return response.json();
}

function processServerlist(thelist: { name: string, description: string, ip: string, port: number, ws_port: number, assets: string, online: string }[]) {
    const myURL: string = window.location.href.replace('https://', 'http://').replace('index.html', '');
    for (let i = 0; i < thelist.length - 1; i++) {
        const serverEntry: { name: string, description: string, ip: string, port: number, ws_port: number, assets: string, online: string } = thelist[i];

        servers[i] = serverEntry;
        servers[i].online = "Offline";

        const ipport = `${serverEntry.ip}:${serverEntry.ws_port}`;

        if (serverEntry.ws_port) {
            document.getElementById('masterlist').innerHTML
                += `<li id="server${i}" onmouseover="setServ(${i})"><p>${safeTags(serverEntry.name)}</p>`
                + `<a class="button" href="${myURL}client.html?mode=watch&ip=${ipport}">Watch</a>`
                + `<a class="button" href="${myURL}client.html?mode=join&ip=${ipport}">Join</a></li>`;
        }
    }
}

function processVersion(data: string) {
    document.getElementById('clientinfo').innerHTML = `Client version: ${version}`;
    document.getElementById('serverinfo').innerHTML = `Master server version: ${data}`;
}