xuexi.cn study automatically UserScript

xuexicn-study-automatically.user.js

// ==UserScript==
// @name          xuexi.cn study automatically
// @namespace     https://github.com/zklhp
// @icon          https://www.xuexi.cn/favicon.ico
// @version       1.1.7
// @homepageURL   https://gist.github.com/zklhp/feddc94e4cf53d01091203413ec4e893
// @updateURL     https://gist.github.com/zklhp/feddc94e4cf53d01091203413ec4e893/raw/xuexicn-study-automatically.user.js
// @description   With this, you can view articles and videos automatically on xuexi.cn
// @author        Chris Zheng <https://chriszheng.science/>
// @grant         unsafeWindow
// @match         *://*.xuexi.cn/*
// ==/UserScript==

// unsafeWindow.document.hasFocus = function() {return true;}; 
Object.defineProperties(document.wrappedJSObject,
                        { 'hidden': {value: false}, 'visibilityState': {value: 'visible'} });
window.addEventListener('visibilitychange', evt => evt.stopImmediatePropagation(), true);

const sleep = ((ms = 0) => new Promise(resolve => setTimeout(resolve, ms)));

const random_click = (ele, i = 1) => {
  // With i == 1, random click.
  let l = document.querySelectorAll(ele);
  if (l.length == 0) {
    return false;
  }
  else {
    l[(i == 0) ? 0 : Math.floor(Math.random() * l.length)].click();
    return true;
  }
}

(async () => {
  while (1) {
    console.log(new Date().toString());
    unsafeWindow.focus(); // May be useless.
    await sleep(60 * 1000); // Sleep 1 min.
    random_click("span.list");
    if (!random_click("div.text-wrap"))
    {
      // Cannot click.
      console.log("This is a page, sleep and close.");
      let countdown = (5 + Math.random() * 5) * 60; // Unit is second.
      while (countdown-- >= 0) {
        // Restart the video.
        random_click("div.pause", 0);
        console.log("Click to continue video.");
        await sleep(1000); // Sleep 1 second.
        // console.log("Countdown: " + countdown);
      }
      if (document.title == "我的积分") {
        location.reload();
      }
      // We have slept 5 to 10 min, close the page.
      window.close();
    }
    else
    {
      console.log("This is a catalog page, click to open new page and sleep.");
      await sleep(15 * 60 * 1000); // Sleep 15 min. Less pages to open.
      await sleep(60 * 60 * 1000); // Sleep 60 min.
      // Now jump page or refresh the page.
      if (!random_click("div.btn")) {
        location.reload(); // Or we refresh.
      }
    }
  }
})();