// npm install steam@v0.6.8
var steam = require('steam');
var fs = require('fs');
// npm install readline-sync
var readlineSync = require('readline-sync');

// request an auth code from the user, this freezes any other progress until a response is received
var promptAuthCode = function(account) {
    var code = readlineSync.question('[STEAM][' + account.username + '][AUTHCODE]: Enter authcode: ');
    account.authcode = code;
}

// just for swagger
var shuffleArray = function(array) {
    for (var i = array.length - 1; i > 0; i--) {
        var j = Math.floor(Math.random() * (i + 1));
        var temp = array[i];
        array[i] = array[j];
        array[j] = temp;
    }

    return array;
}

// accounts array, you can move this into another file if you want
// if you move it to a different file you'll need to do var ... = require(...)
// to access the array.
var accounts = [
    {
        username: "",
        password: "",
        games: [
            4000
        ],
        loggedIn: true
    }
];

var build = function() {
    for (var index in accounts) {
        buildBot(index);
    }
}

var buildBot = function(index) {
    var account = accounts[index];
    var username = account.username;
    var password = account.password;
    var authcode = account.authcode;
    var sentryFileHash = new Buffer(username).toString('base64');
    var bot = new steam.SteamClient();

    if (fs.existsSync(sentryFileHash)) {
        var sentry = fs.readFileSync(sentryFileHash);
        console.log("[STEAM][" + username + "]: Logging in with sentry. (" + sentryFileHash + ")");
        bot.logOn({
            accountName: username,
            password: password,
            shaSentryfile: sentry
        });
    } else {
        console.log("[STEAM][" + username + "]: Logging in without sentry.");
        bot.logOn({
            accountName: username,
            password: password,
            authCode: authcode
        });
    }

    bot.on('loggedOn', function() {
        console.log("[STEAM][" + username + "]: Logged In.");
        account.loggedIn = true;
        bot.setPersonaState(steam.EPersonaState.Online); // our bot needs to be in an online state for our idling to work.
        bot.gamesPlayed(shuffleArray(account.games)); // idle games

        setInterval(function() {
            //
            if (account.loggedIn) {
                try {
                    console.log("[STEAM][" + username + "]: Changing games");
                    bot.gamesPlayed([]); // empty array, we aren't playing anything.
                    bot.gamesPlayed(shuffleArray(account.games));
                } catch (ex) {}
            }
            //
        }, 7200000); // 2 hours
    });

    bot.on('sentry', function(sentryHash) {
        console.log("[STEAM][" + username + "]: Received sentry file.");
        fs.writeFile(sentryFileHash, sentryHash, function(err) {
            if (err){
                console.log("[STEAM][" + username + "]: " + err);
            } else {
                console.log("[STEAM][" + username + "]: Wrote sentry file.");
            }
        });
    });

    bot.on('error', function(e) {
        if (e.eresult == steam.EResult.InvalidPassword) {
            console.log("[STEAM][" + username + "]: " + 'Login Failed. Reason: invalid password');
        } else if (e.eresult == steam.EResult.AlreadyLoggedInElsewhere) {
            console.log("[STEAM][" + username + "]: " + 'Login Failed. Reason: already logged in elsewhere');
        } else if (e.eresult == steam.EResult.AccountLogonDenied) {
            console.log("[STEAM][" + username + "]: " + 'Login Failed. Reason: logon denied - steam guard needed');
            promptAuthCode(accounts[index]);
            buildBot(index);
        } else {
            if (account.loggedIn) {
                account.loggedIn = false;
                bot.logOff();
                // change log in status to false to prevent exceptions
                // a logout reason of 'unknown' happens when ever you cannot access the account
                // or when you're logged out.
                console.log("[STEAM][" + username + "]: -----------------------------------------------------------");
                console.log("[STEAM][" + username + "]: Cannot log in at this time.");
                console.log("[STEAM][" + username + "]: !!! The script will try to log in again in 5 minutes. !!!");
                console.log("[STEAM][" + username + "]: If you're currently logged into the account log out.");
                console.log("[STEAM][" + username + "]: You are able to log into an account whilst it's idling, just don't play games.");
                setTimeout(function() {
                    // try again.
                    buildBot(index);
                }, 300000);
                console.log("[STEAM][" + username + "]: -----------------------------------------------------------");
            } else {
                console.log("[STEAM][" + username + "]: Login Failed. Reason: " + e.eresult);
            }
        }
    });
}

// run the idle script.
build();