Youtube sign in popup block

// ==UserScript==
// @name         Youtube login block
// @namespace
// @version      0.1
// @description  try to take over the world!
// @author       unknown reddit user
// @match        https://www.youtube.com/*
// @grant        none
// ==/UserScript==

// SentinelJS is a JavaScript library that lets you detect new DOM nodes
this.sentinel||function(e,n){var a,o,r,s,l,f;sentinel=(s=Array.isArray,l={},f={},{on:function(e,i){if(i){if(!a){var n=document,t=n.head;n.addEventListener("animationstart",function(e,n,t,i){if(n=f[e.animationName])for(e.stopImmediatePropagation(),t=n.length,i=0;i<t;i++)n[i](e.target)},!0),a=n.createElement("style"),t.insertBefore(a,t.firstChild),o=a.sheet,r=o.cssRules}(s(e)?e:[e]).map(function(e,n,t){(n=l[e])||(t="!"==e[0],l[e]=n=t?e.slice(1):"sentinel-"+Math.random().toString(16).slice(2),r[o.insertRule("@keyframes "+n+"{from{transform:none;}to{transform:none;}}",r.length)]._id=e,t||(r[o.insertRule(e+"{animation-duration:0.0001s;animation-name:"+n+";}",r.length)]._id=e),l[e]=n),(f[n]=f[n]||[]).push(i)})}},off:function(e,a){(s(e)?e:[e]).map(function(e,n,t,i){if(n=l[e]){if(t=f[n],a)for(i=t.length;i--;)t[i]===a&&t.splice(i,1);else t=[];if(!t.length){for(i=r.length;i--;)r[i]._id==e&&o.deleteRule(i);delete l[e],delete f[n]}}})},reset:function(){l={},f={},a&&a.parentNode.removeChild(a),a=0}}),(n=e.createEvent("HTMLEvents")).initEvent?n.initEvent("sentinel-load",!1,!1):n=new Event("sentinel-load"),e.dispatchEvent(n)}(document);

(() => {
  const isSignedIn = document.cookie.includes('APISID=');

  if (isSignedIn) return;

  addStyles();
  addScript();

  const observer = new MutationObserver(() => {
    const dismissButton = document.querySelector(
      'yt-upsell-dialog-renderer #dismiss-button'
    );

    dismissButton && dismissButton.click();

    const consentBump = document.querySelector('#consent-bump');

    if (consentBump) {
      consentBump.remove();

      const video = document.querySelector('video');

      const onVideoPauseAfterConsentBump = () => {
        video.play();
        video.removeEventListener('pause', onVideoPauseAfterConsentBump);

        setPopupContainerDisplay();
      };

      video.addEventListener('pause', onVideoPauseAfterConsentBump);
    }
  });

  observer.observe(document.querySelector('ytd-app'), { childList: true });

  sentinel.on('.ytp-large-play-button', (button) => {
    let searchTime;
    try {
      searchTime = parseInt(location.search.match(/&t=(\d+)/)[1]);
    } catch {}

    button.click();
    searchTime && (document.querySelector('video').currentTime = searchTime);

    setPopupContainerDisplay();
  });

  function setPopupContainerDisplay() {
    const popupContainer = document.querySelector('.ytd-popup-container');
    popupContainer && (popupContainer.style.display = 'none');
  }

  function addStyles() {
    const style = document.createElement('style');

    style.innerHTML = /* css */ `
      #consent-bump,
      iron-overlay-backdrop,
      yt-upsell-dialog-renderer {
        display: none !important;
      }
    `;

    document.head.append(style);
  }

  function addScript() {
    const script = document.createElement('script');

    script.innerHTML = /* javascript */ `
      const player = document.querySelector('#movie_player');
      player && (player.stopVideo = function() { console.log("Don't stop!"); });
    `;

    document.body.append(script);
  }
})();