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 change = require('./functions.js')
const csv = require('csv');
const winston = require('winston');

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




winston.add(winston.transports.File, {
    filename: 'somefile.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);
});

function GetChange (price, RefRequired, RecRequired, ScrapRequired, Refined, Reclaimed, Scrap, metal){
  var change = 0;
  var ThereMetalToAdd = 0;

  if (metal > price) {                                    //if they have enough calculate change
      if (Scrap < ScrapRequired) {                        //by seeing if scrap is under scrap required if it is add a rec to the rec required variable minus 3 from scrap and add the absouloute to the change var
          RecRequired = RecRequired + 3;                  //then 0 out scrap required
          ScrapRequired = ScrapRequired - 3;
          change = change + Math.abs(ScrapRequired);
          ScrapRequired = 0;
      }

      if (Reclaimed < RecRequired) {                          //same here as scrap
          RefRequired = RefRequired + 9;
          RecRequired = RecRequired - 9;
          change = change + Math.abs(RecRequired);
          RecRequired = 0;
      }
      totalMetal = RefRequired + RecRequired + ScrapRequired
      return {
        change: change
        totalMetal: totalMetal
      };
    }else{
      return "badtrade";
    }
}

function requiredMetal(price2){
                         //get required metal
  var RefRequired = 0;
  var RecRequired = 0;
  var ScrapRequired = 0;

  while (price2 >= 9) {                                 //getting req metal here by seeing if price is over a certain vaule if it is then add to a required var and minus that number from price
      RefRequired = RefRequired + 9;
      price2 = price2 - 9;
  }

  while (price2 >= 3) {
      RecRequired = RecRequired + 3;
      price2 = price2 - 3;
  }

  while (price2 >= 1) {
      ScrapRequired++
      price2 = price2 - 1;
  }
  return {
    RefRequired: RefRequired,
    RecRequired: RecRequired,
    ScrapRequired: ScrapRequired
  };
}




function canAfford(inv) {

  var metal = 0;
  var Refined = 0;
  var Reclaimed = 0;
  var Scrap = 0;


  for (let i = 0; i < inv.length; i++) {                                      //getting all metal in bp and vaules for diffrent metals
      if (inv[i].market_hash_name.includes('Refined Metal')) {                //metal = all scrap,rec and ref combined
          metal = metal + 9;
          Refined = Refined + 9;
      } else {
          if (inv[i].market_hash_name.includes('Reclaimed Metal')) {
              metal = metal + 3;
              Reclaimed = Reclaimed + 3;
          } else {
              if (inv[i].market_hash_name.includes('Scrap Metal')) {
                  metal = metal + 1;
                  Scrap = scrap+1;
              }
          }
      }
  }
  return {
    Refined: Refined,
    Reclaimed: Reclaimed,
    Scrap: Scrap,
    metal: metal
  };
}




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

client.on('friendMessage', (steamID, message) => { //freind messgaes
    if (message.startsWith("!buy cs")) {
        var csAmount = parseInt(message.split("!buy cs")[1]);
        if (isNaN(csAmount)) { //calculating required keys
            csAmount = 1;
        }

        var offer = manager.createOffer(steamID); //create offer
        client.chatMessage(steamID, "Creating your offer now");
        var refamount = csAmount * config.buyref;
        var price2 = csAmount * config.buyref2;
        var price = csAmount * config.buyref2;
        //calculating required refined metal

        //trade stuff starts here
        manager.getUserInventoryContents(steamID, 440, 2, true, (err, inv) => { //loading there invent
            if (err) {
                console.log(err.message);
                return;
            }

            manager.getInventoryContents(440, 2, true, (err, ourInv) => { //loading there invent
                if (err) {
                    console.log(err.message);
                    return;
                }

                console.log(Scrap);

                var metal = requiredMetal(price2);    //getting the required metal from the price
                var RefRequired = metal.RefRequired;
                var RecRequired = metal.RecRequired;
                var ScrapRequired = metal.ScrapRequired;

                var ActualMetal = canAfford(inv);     //getting there metal
                var Refined = ActualMetal.Refined;
                var Reclaimed = ActualMetal.Reclaimed;
                var Scrap = ActualMetal.Scrap;
                var metal = ActualMetal.metal;

                var MetalToAdd = GetChange (price, RefRequired, RecRequired, ScrapRequired, Refined, Reclaimed, Scrap, metal);
                var change = MetalToAdd.change;
                var totalMetal = MetalToAdd.totalMetal;

                console.log(change);
                console.log(totalMetal);


            });
        });
    }
    RefToAdd = [];
    KeysToAdd = [];
    ThereMetalToAdd = [];
    ChangeToAdd = [];
    totalMetal = 0;
});