pluto.tv-add-random-channel-button.user.js

// ==UserScript==
// @name        pluto.tv add random channel button
// @namespace   https://greasyfork.org/en/users/85671-jcunews
// @version     1.0.1
// @license     AGPL v3
// @author      jcunews
// @description Context: https://old.reddit.com/r/userscripts/comments/14q7g82/could_someone_please_make_a_script_that_randomly/
// @match       https://pluto.tv/*
// @grant       none
// @run-at      document-start
// ==/UserScript==

((rj, cl) => {
  rj = Response.prototype.json;
  Response.prototype.json = function() {
    var res = rj.apply(this, arguments);
    if (this.url.includes("/v2/guide/channels")) res.then(obj => cl = obj);
    return res
  };
  function chkPage(clc) {
    if ((clc = document.querySelector('div[class^="channelListContainer-"] .hours span')) && !window.btnrtc) {
      document.querySelector('div[class^="liveTVGuideLayoutContainer-"]').insertAdjacentHTML("beforebegin", `
        <a id="btnrtc" href="#" style="
          position:absolute;z-index:1;left:2.4em;margin-top:-.2em;border-radius:.3em;padding:0 .3em .22em .3em;background:#050;
          color:#fff;text-decoration:none!important;font-size:18px;font-weight:bold;cursor:pointer;
        ">Random Channel</a>`);
      window.btnrtc.onclick = ev => {
        ev.preventDefault();
        if (cl) {
          location.href = cl.data[Math.floor(Math.random() * cl.data.length)].slug
        } else alert("Channel list data is not found due to site changes.")
      }
    }
  }
  setInterval(chkPage, 200)
})()