// ==UserScript==
// @name         在线学习autoPlayer
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  刷课时专用
// @author       Jero
// @match        https://www.tampermonkey.net/changelog.php?version=4.14&ext=dhdg
// @match        https://hzzj-kfkc.webtrn.cn/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=tampermonkey.net
// @grant        none
// @run-at       document-end
// @license           AGPL
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';
    var frame1 = document.getElementById("mainCont").contentDocument;
    var frame2 = frame1.getElementById("mainFrame").contentDocument;
    function autoplay(){
        var playerId =  frame2.getElementById("itemId").value;
        var nextPlayerId = "";
        var strId = "s_point_"+playerId;
        var playerIdList  = [...frame1.querySelectorAll(".s_point")].map(item=>{
            return item.getAttribute('id');
        });
        playerIdList.forEach((element,index) => {
            if(element==strId){
                nextPlayerId = playerIdList[index+1];
            }
        });
        var nextPlayerButton = frame1.getElementById(nextPlayerId);
        nextPlayerButton.click();
    }
    var  aud = frame2.querySelector("video");
    aud.onended = function(){
        autoplay()
    };
    // Your code here...
})();