// ==UserScript==
// @name         国家中小学智慧教育平台 2022年“暑期教师研修”专题 刷课脚本
// @namespace    http://tampermonkey.net/
// @version      0.1
// @license      CC BY-NC-SA
// @description  Just a normal script
// @author       Zed Wong
// @match        https://www.zxx.edu.cn/teacherTraining/*
// @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';
    setTimeout(main, 5000);
    function main(){
        console.log('刷课脚本开始运行');
        var vid = document.getElementsByTagName("video")[0];
        vid.muted = true;
        vid.play();
        console.log('开始播放');

        var total_ep = document.getElementsByClassName('resource-item').length;
        console.log('总共集数:',total_ep);

        var current_index;
        document.getElementsByClassName('resource-item').forEach(function(element,index){ if (element.classList.length === 3) { current_index = index; }});
        console.log('当前集号:',current_index);

        vid.addEventListener('ended', function() {
            if (current_index <= total_ep) {
                console.log('播放结束，切换下一个视频');
                document.getElementsByClassName('resource-item')[current_index].click();
                current_index += 1;
                setTimeout(next(current_index), 2000);
            } else {
                console.log("该章节已挂机完成。");
            }
        }, false);
    }
    function next(current_index) {
        document.getElementsByClassName('resource-item')[current_index+=1].click();
        console.log('已切换到视频',current_index);
    }
})();