Counter

// ==UserScript==
// @name         Counter5
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       Peca
// @match        SECRET!
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    console.log("Start!");

    const delay = ms => new Promise(res => setTimeout(res, ms));
    var counter = parseInt(localStorage.counter)||0;
    const ENTER_KEY = 13;

    const test = async () => {
        window.addEventListener("keydown", keyboardHandlerJQ, false);
        var newHTML = document.createElement ('div');
        newHTML.innerHTML = '<div id="gmSomeID"><p style="font-size:25px; text-align: center;">'.concat('\t', counter.toString(), '</p></div>');
        document.getElementById("rootComponentDiv").appendChild(newHTML);

        console.log("Waiting for buttons!");
        var buttons;
        do {
            console.log("Still no buttons!");
            buttons = document.getElementsByClassName("v-btn v-btn--small theme--dark orange");
            await delay(500);
        } while(!(buttons.length == 2));
        console.log("Found Buttons");

        var i;
        for(i = 0;i < buttons.length;i++){
            buttons[i].onclick = onClick;
            console.log("Event added")
        }

        console.log("Waiting for finished button!");
        var finishButton;
        do {
            console.log("Still no button!");
            finishButton = document.getElementById("btnFinished");
            await delay(500);
        } while(finishButton == null);
        console.log("Found Button");
        finishButton.onclick = onClick;
    };

    function onClick(){
        console.log("Button pressed.");
        localStorage.counter = ++counter;
        console.log(counter);
    }

    function keyboardHandlerJQ(zEvent) {
        var bBlockDefaultAction = false;
        if (zEvent.altKey || zEvent.ctrlKey || zEvent.shiftKey) {
            if(zEvent.ctrlKey){
                if (zEvent.which == ENTER_KEY) {
                    console.log("Deleting Counter!");
                    localStorage.removeItem("counter");
                    counter = 0;
                }
            }
        }
        if (bBlockDefaultAction) {
            zEvent.preventDefault();
            zEvent.stopPropagation();
        }
    }

    test();
})();