const SteamUser = require('steam-user');
const TradeOfferManager = require('steam-tradeoffer-manager');
const SteamTotp = require('steam-totp');
const SteamCommunity = require('steamcommunity');
const config = require('./config.json');
const winston = require('winston');

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



/*
edit these to add and remove listings
SellPrices = Price to sell items at in keys
BuyPrices = Price to buy items at in keys

edit tutorial
to add a listing to the bot simply follow the exsamples below

var exsample = {'name':11, 'name 2':6, 'name3':75}
var exsample2 = {'name':11, 'name 2':6}

make sure to leave a comma and a space as can be seen between 'name1' and 'name2' but keep in mind do not do this at the end

you can have as many as you like!

bot aacepts all keys ask me if you want something diffrent

*/

//edit these
var SellPrices = {'Reclaimed Metal':1, 'placeholder':1};
var BuyPrices = {'placeholder1':1, 'placeholder':1};
var acceptedKeys = ['Scrap Metal', 'Rainy Day Cosmetic Case']
//end editing here


winston.add(winston.transports.File, {
    filename: 'events.log'
});
winston.remove(winston.transports.Console);



const logOnOptions = {
    accountName: config.username,
    password: config.password,
    twoFactorCode: SteamTotp.generateAuthCode(config.sharedSecret)
};
//log on
client.logOn(logOnOptions);

client.on('loggedOn', function(details) {
    console.log(`Logged into Steam as ${client.steamID.getSteam3RenderedID()}`); //online then play tf2
    client.setPersona(SteamUser.Steam.EPersonaState.Online);
    client.gamesPlayed([440])
});

client.on('webSession', function(sessionID, cookies) {
    manager.setCookies(cookies, function(err) {
        if (err) return console.log(err);
        console.log(`Got API key: ${manager.apiKey}`);
    });

    community.setCookies(cookies);
    community.startConfirmationChecker(10000, config.identitySecret);
});

client.on('friendRelationship', (steamID, relationship) => { //freind requests
    if (relationship == 2) {
        client.addFriend(steamID);
        client.chatMessage(steamID, config.welcomeMessage);
    }
});

client.on('friendMessage', (steamID, message) => {
  if (message.startsWith("!buy prices")) {
   var Msg = JSON.stringify(BuyPrices)  //converting buy array to a string
   var Msg = Msg.replace('{','');    //removing '{'
   var Msg = Msg.replace('}','');   //removing '}'
   client.chatMessage(steamID, Msg);
 }else {
   if (message.startsWith("!sell prices")) {
     var Msg = JSON.stringify(SellPrices)  //converting buy array to a string
     var Msg = Msg.replace('{','');    //removing '{'
     var Msg = Msg.replace('}','');
     client.chatMessage(steamID, Msg);
   }
 }
});

function Get_Item_Vaule(offer, price) {
  var name;
  var Vaule = 0;

  for (i = 0; i < offer.length; i++) {
    name = offer[i].market_hash_name;
    if (price[name]) {
      Vaule += price[name]
    }
  }
  return Vaule;
}

function Get_keys(offer, acceptedKeys) {
  var name;
  var Keys = 0;

  for (i = 0; i < offer.length; i++) {
    name = offer[i].market_hash_name;
    if (acceptedKeys.includes(name)){
      Keys += 1
    }
  }
  return Keys;
}


function acceptOffer(offer) {
    offer.accept((err) => {
        if (err) winston.info(`Unable to accept offer: ${err.message}`);
        community.checkConfirmations();
    });
}

function declineOffer(offer) {
    offer.decline((err) => {
        if (err) return winston.info(`Unable to decline offer: ${err.message}`);
    });
}

manager.on('newOffer', function(offer) {
  const partnerID = offer.partner.getSteamID64();
  winston.info("offer incoming from " + partnerID);
  var ThereItemVaule = Get_Item_Vaule(offer.itemsToReceive, BuyPrices);
  var ThereKeys = Get_keys(offer.itemsToReceive, acceptedKeys);
  var ThereTotalVaule = ThereKeys + ThereItemVaule;
  console.log(ThereTotalVaule);

  var OurItemVaule = Get_Item_Vaule(offer.itemsToGive, SellPrices);
  console.log(OurItemVaule);
  var OurKeys = Get_keys(offer.itemsToGive, acceptedKeys);
  console.log(OurKeys);
  var OurTotalVaule = OurKeys + OurItemVaule;
  console.log(OurTotalVaule);

if (OurTotalVaule <= ThereTotalVaule) {
    acceptOffer(offer);
    winston.info("accepted offer from " + partnerID + " we made profit!");
  }else{
    declineOffer(offer);
    winston.info("declined offer from " + partnerID + " we would have lost money");
  }
});