// ==UserScript==
// @name WhatsApp Web Spammer
// @Namespace http://tampermonkey.net/
// @version 1.55
// @Description Spam people with this beautiful WhatsApp Web spammer.
// @Author telegram.me/MrGoogleboy
// @Match https://web.whatsapp.com/*
// @Grant none
// ==/UserScript==

var repeatingSpamFunction = null;
var repeatingCreateSpamButtonFunction = null;
var message = '';

function getElementByXpath(path) {
return document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
}

document.onclick = function(){
createSpamButton();
};

function createSpamButton () {
if(document.getElementById('spamButton') != null)
return;
var composeBar = getElementByXpath("//*[@id=\"main\"]/footer/div[1]");
if(composeBar == null)
return;
composeBar.oninput = function(){
editSpamButton();
};

var spamButton = document.createElement('button');
spamButton.setAttribute("id", "spamButton");
spamButton.innerHTML = 'SPAM';
spamButton.style.fontSize = '100%';
spamButton.style.padding = '0px 0px 10px 10px';
composeBar.append(spamButton);
editSpamButton();
}

function sendMessage () {
var evt = new Event('input', {
bubbles: true
});

var input = getElementByXpath("//*[@id=\"main\"]/footer/div[1]/div[2]/div/div[2]");
input.innerHTML = message;
input.dispatchEvent(evt);

getElementByXpath("//*[@id=\"main\"]/footer/div[1]/div[3]/button").click();
}

function doSpam(element) {
if(element.innerHTML == 'SPAM'){
var input = getElementByXpath("//*[@id=\"main\"]/footer/div[1]/div[2]/div/div[2]");
if(input.innerHTML == '' || input.innerHTML == null){
window.alert('Please Enter a Text to be spammed before using the spam button.');
return;
}
element.innerHTML = 'STOP';
message = input.innerHTML;
var interval = parseInt (prompt('Please enter spam-interval:', '500'));
repeatingSpamFunction = window.setInterval(function(){
sendMessage();
}, interval);
} else {
element.innerHTML = 'SPAM';
window.clearInterval(repeatingSpamFunction);
}
editSpamButton();
}

function editSpamButton(){
var spamButton = document.getElementById('spamButton');
var input = getElementByXpath("//*[@id=\"main\"]/footer/div[1]/div[2]/div/div[2]");
if(input.innerHTML == '' || input.innerHTML == null){
spamButton.style.cursor = 'not-allowed';
spamButton.style.color = '#D3D3D3';
spamButton.onclick = null;
} else {
spamButton.style.cursor = 'pointer';
spamButton.style.color = '#039be5';
spamButton.onclick = function(){
doSpam(this);
};
}
}