Codejam greasemonkey script

codejam.user.js

// ==UserScript==
// @name        code jam
// @version     2.1
// @author      Mukundan Senthil
// @include     https://codingcompetitions.withgoogle.com/*
// @require     http://code.jquery.com/jquery-latest.js
// @require     https://gist.githubusercontent.com/BrockA/2625891/raw/waitForKeyElements.js
// @grant       none
// ==/UserScript==

const urlRegex = /^\/codejam\/round/
const urlProblemRegex = /^\/codejam\/round\/[^\/]+\/[^\/]+/

const css = `
.mdc-top-app-bar--fixed-adjust--additional {
  padding-top: 120px !important;
}
.section-row {
  padding-top: 1% !important;
}
.competition-interface-page .pane-interface {
  flex-direction: column !important;
}
.pane-interface__left {
  flex-basis: 90% !important;
}
.pane-interface__right {
  padding-top: 0.5% !important;
  flex-basis: 10% !important;
  flex-direction: row !important;
}
.problem-statement-string {
  padding-bottom: 1rem !important;
}
.tmp {
  display: flex;
  height: 100%;
}
.tmp__left {
  flex-basis: 20%;
  padding-top: 4rem;
}
.tmp__right {
  flex-basis: 80%;
}
`
const style = $('<style>', { type: 'text/css' }).html(css)

function removeNode (node) { node.remove() }

if (urlRegex.test(location.pathname)) {
  waitForKeyElements('.problems-bar-graphs', removeNode)
  waitForKeyElements('.rounds-header', removeNode)
  waitForKeyElements('.problem-editor__window', removeNode)
  waitForKeyElements('.problem-editor__actions__switch', removeNode)
  waitForKeyElements('head', function (node) { node.append(style) })
}

$(document).ready(function () {
  if (urlProblemRegex.test(location.pathname)) {
    let problems = $('.mdc-list').eq(1).clone().addClass('tmp__left')
    problems.on('click', '.mdc-list-item', function () {
      location.href = $(this).attr('data-value')
    })

    let a = $('<div></div>')
    a.addClass('tmp')
    problems.appendTo(a)
    $('.pane-interface').addClass('tmp__right').appendTo(a)

    a.appendTo($('.mdc-drawer-app-content'))
  }
})

var lastPathStr = location.pathname
setInterval(function () {
  if (lastPathStr !== location.pathname && !(urlProblemRegex.test(location.pathname) && urlProblemRegex.test(lastPathStr))) {
    lastPathStr = location.pathname
    location.reload()
  }
}, 100)