Is this YouTube code able to use addPlayer instead of window?

I was trying to figure out how to do that.

Does window have to be used with loadPlayer()?

Working code using window, trying to use addPlayer instead with loadPlayer().

https://jsfiddle.net/xdrtuj5e/

   const videoPlayer = (function makeVideoPlayer() {
    
      let player = null;
    
      function loadPlayer() {
        const tag = document.createElement("script");
        tag.src = "https://www.youtube.com/iframe_api";
        const firstScriptTag = document.getElementsByTagName("script")[0];
        firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
      }
    
      function onPlayerReady(event) {
        player = event.target;
        player.setVolume(100);
      }
    
      window.onYouTubePlayerAPIReady = function() {
    
        const video = document.querySelector(".video");
    
        /* function addPlayer(video) { */
    
        new YT.Player(video, {
          width: 606,
          height: 344,
          videoId: video.dataset.id,
          playerVars: {
            autoplay: 0,
            controls: 1,
            showinfo: 1,
            rel: 0,
            iv_load_policy: 3,
            cc_load_policy: 0,
            fs: 0,
            disablekb: 1
          },
          events: {
            "onReady": onPlayerReady
          }
        });
      };
    
      function init() {
        loadPlayer();
      }
      return {
        /* addPlayer,*/
        init
      };
    
    }());
    
    
    (function iife() {
    
      function coverClickHandler(evt) {
        videoPlayer.init();
      }
    
      const cover = document.querySelector(".playa");
      cover.addEventListener("click", coverClickHandler);
    }());
    
    
    /*
    function onYouTubeIframeAPIReady() {
      const frameContainer = document.querySelector(".video");
      videoPlayer.addPlayer(frameContainer);
    }*/
    
   /* 
    function onYouTubeIframeAPIReady() {
      const cover = document.querySelector(".playa");
      const wrapper = cover.parentElement;
      const frameContainer = wrapper.querySelector(".video");
      videoPlayer.addPlayer(frameContainer);
    }*/