// ==UserScript==
// @name         ulearning
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  课程思政网络培训的视频每隔几分钟会暂停播放，这个脚本可以帮你自动（每分钟检测一次）继续播放，还可以跳过非视频的页面（这个功能没有仔细测试）。只支持在同一个课程内自动播放，播放结束后跳到下一章节，所以请选择一个学分数很大的课程来挂课。
// @author       You
// @match        https://ua.ulearning.cn/learnCourse/learnCourse.html*
// @icon         https://www.google.com/s2/favicons?domain=ulearning.cn
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    console.log('go to do.');
    let tiemOut = 1000*60;  // 检测间隔时间，默认为一分钟一次
    let lists = [];
    let index = 0;

    function getPlayList(){
        lists = document.querySelectorAll('.section-item div.page-list .page-item');
        console.log(lists);
    }

    setInterval(function(){
        try{
            let btn_play = document.querySelector('.mejs__overlay-play');
            //let currentTime = document.querySelector('.mejs__currenttime');
            //let duration = document.querySelector('.mejs__duration');
            let playStatus = document.querySelector('div.video-progress  div.text span');

            //let videoWrapper = document.querySelector('.video-wrapper');
            //console.log('videoWrapper: ',videoWrapper);
            if(lists.length<2){
                getPlayList();
            }

            if(!btn_play){
                let nextBtn = document.querySelector('.next-page-btn');
                if(nextBtn){
                    console.log('next page.');
                    nextBtn.click();
                }
                index++;
                if(lists.length){
                    console.log('play lists.');
                    for(index in lists){
                        let iconfont= lists[index].querySelector('.iconfont');
                        if(!iconfont.classList.contains('finish')){
                            console.log('not finish',lists[index]);
                            lists[index].querySelector('.page-name.cursor').click();
                            break;
                        }
                    }
                }
            }

            console.log('btn_play: ',btn_play);
            //console.log('currentTime: ',currentTime.innerText);
            //console.log('playStatus: ',playStatus.innerText);

            if(btn_play){
                //btn_play.setAttribute('aria-pressed','true');
                if(document.querySelector('.mejs__overlay-button').getAttribute('aria-pressed')==='false'){
                    if(playStatus.innerText !='已看完'){
                        btn_play.click();
                        console.log(Date(), ' play continue... ');
                    }else{
                        if(lists.length){
                            console.log('play lists.');
                            for(index in lists){

                                let iconfont= lists[index].querySelector('.iconfont');

                                if(!iconfont.classList.contains('finish')){
                                    console.log('not finish',lists[index]);
                                    lists[index].querySelector('.page-name.cursor').click();
                                    break;
                                }
                            }
                        }
                    }
                }
            }
        }
        catch(e){
            if (window.console){
                window.console.log("Error in this userscript");
            }
        }
    }, tiemOut);



    // Your code here...
})();