botz

// ==UserScript==
// @name        Luno Bot
// @namespace   wuiyang
// @include     https://www.luno.com/*
// @version     1
// @grant       none
// ==/UserScript==

var hasSetup = false;
var lowerLimit = 0;
var lowerHasNotify = false;
var lowerNotifyCount = 0;
var upperLimit = 0;
var upperHasNotify = false;
var upperNotifyCount = 0;
var spreadLimit = 0;
var spreadHasNotify = false;
var spreadNotifyCount = 0;

function beep(frequency, time){
  if(frequency == undefined){
    frequency = 500;
  }
  if(time == undefined){
    time = 200;
  }
  var context = new (window.AudioContext || window.webkitAudioContext)();
  var o = context.createOscillator();
  var gainNode = context.createGain();
  o.connect(gainNode);
  gainNode.connect(context.destination);
  gainNode.gain.value = 0.35;
  o.type = 'sine';
  o.frequency.value = frequency;

  // Star the sound
  o.start(0);
  // Play the sound for a second before stopping it
  setTimeout(function() {
      o.stop(0);
  }, time);
}

function beepSeq(freq, count, step, time, wait, i){
  if(i == undefined){ i = 0; }
  if(count == undefined){ count = 1; }
  if(step == undefined){ step = 0; }
  if(time == undefined){ time = 200; }
  if(wait == undefined){ wait = 0; }
  beep(freq+step*i, time);
  i++;
  if(i<count){
    setTimeout(function(){beepSeq(freq, count, step, time, wait, i);}, time+wait);
  }
}

function checkSpread(){
  if(spreadLimit == 0){
    return;
  }
  var spread = parseFloat(document.getElementsByClassName("spread-text")[0].innerHTML.split(" ")[0]);
  if(spread >= spreadLimit){
    if(!spreadHasNotify){
      if(document.hasFocus()){
        beepSeq(500, 3, 0, 200, 100);
        spreadHasNotify = true;
      }else{
        if(spreadNotifyCount%8 == 0){
          spreadNotifyCount = 0;
          beepSeq(500, 3, 0, 200, 100);
        }
        spreadNotifyCount++;
      }
    }
  }else{
    speardHasNotify = false;
  }
}

function checkLowerPrice(){
  var currentPrice = parseFloat(document.getElementById("mCSB_5_container").children[0].children[0].children[0].innerHTML);
  if(lowerLimit == 0){
    return;
  }
  if(lowerLimit >= currentPrice){
    if(!lowerHasNotify){
      if(document.hasFocus()){
        beepSeq(700, 3, -100, 100);
        lowerHasNotify = true;
      }else{
        if(lowerNotifyCount%8 == 0){
          lowerNotifyCount = 0;
        	beepSeq(700, 3, -100, 100);
        }
        lowerNotifyCount++;
      }
    }
  }else{
    lowerHasNotify = false;
  }
}

function checkUpperPrice(){
  var temp = document.getElementById("mCSB_4_container").children;
  var currentPrice = parseFloat(temp[temp.length-1].children[0].children[0].innerHTML);
  if(upperLimit == 0){
    return;
  }
  if(upperLimit <= currentPrice){
    if(!upperHasNotify){
      if(document.hasFocus()){
        beepSeq(500, 3, 100, 100);
        upperHasNotify = true;
      }else{
        if(upperNotifyCount%8 == 0){
          upperNotifyCount = 0;
        	beepSeq(500, 3, 100, 100);
        }
        upperNotifyCount++;
      }
    }
  }else{
    upperHasNotify = false;
  }
}

function updateBot(){
  beep();
  var text;
  text = document.getElementById("botLower").value;
  lowerLimit = text == "" ? 0 : parseFloat(text);
  text = document.getElementById("botUpper").value;
  upperLimit = text == "" ? 0 : parseFloat(text);
  text = document.getElementById("botSpread").value;
  spreadLimit = text == "" ? 0 : parseFloat(text);
  console.log("Updated Bot Info");
  if(!hasSetup){
    hasSetup = true;
    runner();
  	console.log("Bot is runnning now");
  }
}

function runner(){
  checkSpread();
  checkLowerPrice();
  checkUpperPrice();
  setTimeout(runner, 1200);
}

function setupBotUI(){
  var div = document.createElement("div");
  var divl = document.createElement("div");
  var divu = document.createElement("div");
  var divs = document.createElement("div");
  var pl = document.createElement("p");
  var pu = document.createElement("p");
  var ps = document.createElement("p");
  var lower = document.createElement("input");
  var upper = document.createElement("input");
  var spread = document.createElement("input");
  var btn = document.createElement("input");

  //setup input
  lower.id = "botLower";
  lower.style = "border:1px solid #293235;width:100%;height:30px;";
  lower.placeholder = "lower rate";
  lower.type = "number";
  lower.min = 0.0001;
  lower.step = 0.0001;
  upper.id = "botUpper";
  upper.style = "border:1px solid #293235;width:100%;height:30px;";
  upper.placeholder = "higher rate";
  upper.type = "number";
  upper.min = 0.0001;
  upper.step = 0.0001;
  spread.id = "botSpread";
  spread.style = "border:1px solid #293235;width:100%;height:30px;";
  spread.placeholder = "spread amount";
  spread.type = "number";
  spread.min = 0.0001;
  spread.step = 0.0001;

  //setup div container for input show in one line
  pl.innerHTML += "Current buy is lower than:";
  pl.style = "margin:0 0 0 10px;";
  divl.appendChild(pl);
  divl.appendChild(lower);
  pu.innerHTML = "Current sell is higher than:";
  pu.style = "margin:0 0 0 10px;";
  divu.appendChild(pu);
  divu.appendChild(upper);
  ps.innerHTML += "Current spread is higher than:";
  ps.style = "margin:0 0 0 10px;";
  divs.appendChild(ps);
  divs.appendChild(spread);

  //button
  btn.type = "submit";
  btn.value = "Update Luno Notify Bot";
  btn.className = "btn btn-primary";
  if (btn.addEventListener)
      btn.addEventListener("click", updateBot, false);
  else if (btn.attachEvent)
      btn.attachEvent('onclick', updateBot);

  //setup div
  div.innerHTML = "Create beep noise when:";
  div.appendChild(divu);
  div.appendChild(divl);
  div.appendChild(divs);
  div.innerHTML += "<br>";
  div.appendChild(btn);

  document.getElementsByClassName("exchange-trades-panel")[0].innerHTML = '<h2 class="h1" style="font-size:20px;" translate=""><span class="ng-scope">Luno Notify Bot</span></h2>';
  document.getElementsByClassName("exchange-trades-panel")[0].appendChild(div);

}

function firstload(){
  if(document.URL.indexOf("https://www.luno.com/trade/ETHXBT") == 0){
  	var check = document.getElementsByClassName("spread-text");
    if(check.length == 1){
			console.log("Loaded notify bot");
  		setupBotUI();
    }else{
      setTimeout(firstload, 1500);
    }
  }
}

firstload();