const SteamUser = require('steam-user');
const SteamTotp = require('steam-totp');
const SteamCommunity = require('steamcommunity');
const TradeOfferManager = require('steam-tradeoffer-manager');

const client = new SteamUser();
const community = new SteamCommunity();
const manager = new TradeOfferManager({
    steam: client,
    community: community,
    language: 'en'
});

const logOnOptions = {
    accountName: '',
    password: '',
    twoFactorCode: SteamTotp.generateAuthCode('')
};

client.logOn(logOnOptions);

client.on('loggedOn', () => {
    console.log('Logged into Steam');

client.setPersona(SteamUser.Steam.EPersonaState.Online);
});

client.on('webSession', (sessionid, cookies) => {
    manager.setCookies(cookies);

community.setCookies(cookies);
community.startConfirmationChecker(10000, '');
sendRandomItem();
});

manager.on('newOffer', (offer) => {
    if (offer.itemsToGive.length === 0) {
    offer.accept((err, status) => {
        if (err) {
            console.log(err);
        } else {
            console.log(`Donation accepted. Status: ${status}.`);
}
});
} else {
    offer.decline((err) => {
        if (err) {
            console.log(err);
        } else {
            console.log('Donation declined (wanted our items).');
}
});
}
});

function sendRandomItem() {
    const partner = '76561198334593644';
    const appid = 730;
    const contextid = 2;

    const offer = manager.createOffer(partner);

    manager.loadInventory(appid, contextid, true, (err, myInv) => {
        if (err) {
            console.log(err);
        } else {
            const myItem = myInv[Math.floor(Math.random() * myInv.length - 1)];
    offer.addMyItem(myItem);

    manager.loadUserInventory(partner, appid, contextid, true, (err, theirInv) => {
        if (err) {
            console.log(err);
        } else {
            const theirItem = theirInv[Math.floor(Math.random() * theirInv.length - 1)];
    offer.addTheirItem(theirItem);

    offer.setMessage(`Will you trade your ${theirItem.name} for my ${myItem.name}?`);
    offer.send((err, status) => {
        if (err) {
            console.log(err);
        } else {
            console.log(`Sent offer. Status: ${status}.`);
}
});
}
});
}
});
}