// total question count
var questionNum;
// array of questions and current index of answer
var questionsArray = {}
// whether to answer or not.
// toggle this boolean true/false to start/stop
var autoAnswer = false;

// button
	var auto_btn = document.createElement("button");
	auto_btn.innerHTML = "waiting for page to load. . .";

//answer according to index array
function startAnswering(){

	//setup vars
	questionNum = getCurrentQuestion()["totalCount"];

	//reset startup var now that we're in the loop
	autoAnswer = false;

	do{

		//get question info
		var getQ = getCurrentQuestion();
		var currentQ = getQ["questionStr"];
		var currentQcount = parseInt(getQ["count"]);
		// logging to keep track of where it is
		console.log(`${currentQcount} / ${questionNum}`);

		var answerCount;
		// get which answer based on dictionary
		if(questionsArray[currentQ] === undefined) {
			answerCount = 0;
		} else {
			answerCount = questionsArray[currentQ];
		}

		// if it wasn't in the dictionary, add it.
		if(!questionsArray[currentQ]){
			questionsArray[currentQ] =  parseInt(answerCount);
		}

		// answer
		dom_answer(answerCount);
		// click next
		dom_next();
	} while (currentQcount < questionNum);
	// click done + look for bad answers after the quiz
	window.setTimeout(function(){dom_done()}, 1000);
	window.setTimeout(function(){checkBadAnswers()}, 2000);

}

// get bad answers and advance index by one
// if A was wrong, try B next round
function checkBadAnswers(){
	// get ul and li children
	var listWrap = document.body.querySelector("body > div.modal.fade.fastclickable.portal-base.kbase-training-modal.in > div > div > div.modal-body > div > div:nth-child(2) > div > div > ul");
	var children = listWrap.getElementsByTagName("li");

	// iterate through li
	for (var i = 0; i < children.length; i++) {
		var child = children[i];
		var question = child.textContent;

		// iterate through index one
		questionsArray[question]++;
	}

	// close the quiz, and retake it if not passed
	document.body.querySelector("body > div.modal.fade.fastclickable.portal-base.kbase-training-modal.in > div > div > div.modal-footer > div.comp > button.btn.btn-cancel.fastclickable").click();
	document.body.querySelector(`#kb > div > div.pad.col-xs-12.col-lg-10.col-lg-offset-1.fullArticle > div.row.artComp > div > div:nth-child(2) > button`).click();

	// get take quiz button and check for "quizz passed"
	var quizText = document.body.querySelector("#kb > div > div.pad.col-xs-12.col-lg-10.col-lg-offset-1.fullArticle > div.row.artComp > div > div:nth-child(2) > button").textContent;
	if(quizText ==="Take Quiz") {
		window.setTimeout(function(){
			startAnswering();
		}, 500);
	} else {
		auto_btn.innerHTML = "article completed";
	}
}


// helper funcs
// gets question number, total Qs, and the question string
function getCurrentQuestion(){
	var questionStr = document.body.querySelector("body > div.modal.fade.fastclickable.portal-base.kbase-training-modal.in > div > div > div.modal-body > h2").textContent;
	var countStr = document.body.querySelector("body > div.modal.fade.fastclickable.portal-base.kbase-training-modal.in > div > div > div.modal-header > div > h3 > span").textContent;
	var count = countStr.split(" of ")[0];
	var totalCount = countStr.split(" of ")[1];

	return {questionStr, count, totalCount};
}

// click the right index-based answer
function dom_answer(count) {
	innerCount = count + 1;
	var answersWrap = document.body.querySelector("body > div.modal.fade.fastclickable.portal-base.kbase-training-modal.in > div > div > div.modal-body > div > div > ul");
	var child = answersWrap.querySelector(`li:nth-child(${innerCount}) [ng-bind-html="answer | html"]`);
	child.click();
}

// click next
function dom_next() {
	document.body.querySelector("body > div.modal.fade.fastclickable.portal-base.kbase-training-modal.in > div > div > div.modal-footer > div.qnav > div > button.btn.btn-confirm.fastclickable").click();
}

// click done
function dom_done() {
	document.body.querySelector("body > div.modal.fade.fastclickable.portal-base.kbase-training-modal.in > div > div > div.modal-footer > div.comp > button.btn.btn-confirm.fastclickable").click();
}

// click start quiz
function dom_start() {
	document.body.querySelector("#kb > div > div.pad.col-xs-12.col-lg-10.col-lg-offset-1.fullArticle > div.row.artComp > div > div:nth-child(2) > button").click();
}

// create "autoanswer button" in dom
function create_auto_btn() {
	var old_btn = document.body.querySelector('.auto-btn');
	if(isInPage(old_btn)) {
		old_btn.remove()
	}

	// button created above at top

	auto_btn.style.cssText = `
		position: fixed;
		top: 7rem;
		right: 2rem;
		text-transform: uppercase;
		font-weight: 100;
		font-size: 1.5rem;
		padding: 1rem;
		border-radius: 5px;
		background: #34495e;
		color: #27ae60;
	`;

	document.body.appendChild(auto_btn);
	auto_btn.classList.add('auto-btn');

	if( article_completed() ) {
		auto_btn.innerHTML = "article completed!";
		return;
	} else {


		auto_btn.innerHTML = "Start auto-quiz";
		auto_btn.addEventListener('click', event => {
			dom_start();
			window.setTimeout(function(){
				startAnswering();
			}, 500);

		})
	}
}

function article_completed() {
	var quizText = document.body.querySelector("#kb > div > div.pad.col-xs-12.col-lg-10.col-lg-offset-1.fullArticle > div.row.artComp > div > div:nth-child(2) > button").textContent;
	if(quizText === " Completed Article") {
		return true;
	}
	return false;
}

//startup cleaning
function startup_cleaning() {
console.log()
	var remind_later = document.body.querySelector("#requiredTraining > div.modal-header > h3 > button");
	var next_training = document.body.querySelector("#requiredTraining > div.modal-body > div:nth-child(2) > table > tbody > tr:nth-child(1) > td:nth-child(1) > button");

	if(isInPage(remind_later)) {
		remind_later.click();
	}

	create_auto_btn();
}

function isInPage(node) {
  return (node === document.body) ? false : document.body.contains(node);
}

// end helper funcs

// start'er up

function ready(fn) {
  if (document.readyState != 'loading'){
    fn();
  } else {
    document.addEventListener('DOMContentLoaded', fn);
  }
}

ready( startup_cleaning );