// ==UserScript==
// @name         四川电子科大刷课脚本
// @namespace    http://tampermonkey.net/
// @version      0.9
// @description  四川电子科大刷课简易脚本，网教与学堂云两个平台均支持，脚本并不完善可能存在问题，欢迎在评论区留言帮助作者改善脚本
// @author       Cribug
// @license      MIT
// @match        https://uestcedu.yuketang.cn/pro/lms/*
// @match        http://learning.uestcedu.com/*
// @grant        none
// @noframes
// @downloadURL none
// ==/UserScript==

(function() {


    // Your code here...

    //创建弹窗
    (function(){
        var div = document.createElement('div');
        div.id = "cribug";
        div.innerHTML = `<div class="cribug-pop" style="position:fixed;right:17px;bottom:30px;width:400px;height:500px;border-radius:3px 0 0 0;border-left:3px solid #333;border-top:3px solid #333;background:#fff;transition:all .2s ease;z-index:999;">
    <div class="cribug-title" style="position:relative;background:#ccc;line-height:40px;color:#333;text-indent:6px">电子科大刷课脚本 <button class="cribug-open">支持作者</button><div class="cribug-switch" style="position:absolute;right:15px;top:10px;width:16px;height:20px;"><i style="display:block;width:100%;height:2px;margin-top:9px;background:#333;"></i></div></div>
    <div class="cribug-importantInfo" style="padding-left:6px;color:red;height:30%;border-bottom:1px solid #333;overflow:auto;">
        <p>注意：当前脚本完全开源免费，如果你从任何途径购买了本脚本，请要求对方退费！有问题欢迎在Greasy Fork评论反馈。</p>
    </div>
    <div class="cribug-journal" style="height:calc(70% - 41px);padding-left:6px;overflow:auto;"></div>
</div>

<div class="cribug-sponsor" style="display:none;position:fixed;left:50%;top:50%;width:100%;height:100%;transform:translate(-50%,-50%);background:rgba(0,0,0,.4);z-index:999;">
    <div style="margin:200px auto 0;width:500px;height:300px;padding:20px;background:#fff;border-radius:5px;border:2px solid #333">
        感谢您对作者的支持！<br />您的打赏能够有效加快脚本的完善！
        <div style="display:flex;justify-content:center;margin-top:25px;width:100%;">
                <div>
                        <div style="width:100%;text-align:center;">微信</div>
                        <img src="https://www.helloimg.com/images/2022/05/26/ZaZDZQ.th.jpg">
                </div>
                <div style="margin-left:20px">
                        <div style="width:100%;text-align:center;">支付宝</div>
                        <img src="https://www.helloimg.com/images/2022/05/26/ZaZcy1.th.jpg">
                </div>
        </div>
        <button class="cribug-shut" style="margin:30px auto;display:block;">关闭</button>
    </div>
</div>`

        var bob = document.querySelector('body');
        bob.appendChild(div)

        //打赏页面开关
        var open = document.getElementsByClassName("cribug-open")[0];
        var shut = document.getElementsByClassName("cribug-shut")[0];
        var spomsor = document.getElementsByClassName("cribug-sponsor")[0];
        open.onclick = function(){spomsor.style.display = "block"};
        shut.onclick = function(){spomsor.style.display = "none"};

        //弹窗最小化，最大化
        var switc = document.getElementsByClassName("cribug-switch")[0];
        var pop = document.getElementsByClassName("cribug-pop")[0];
        switc.onclick = function(){
            if(pop.style.transform != "translateY(490px)"){
                pop.style.transform = "translateY(490px)"
            }else{
                pop.style.transform = "translateY(0)"
            }
        }
    })();


    //日志输出
    var importantInfo = document.getElementsByClassName("cribug-importantInfo")[0];
    var journal = document.getElementsByClassName("cribug-journal")[0];
    function output(position,text){
        var p = document.createElement('p');
        p.innerHTML = text;
        position.appendChild(p)
        position.scrollTop = position.scrollHeight;
    };

    //等待页面加载完毕判断当前运行的平台
    window.onload = function(){
        output(importantInfo,"页面加载完成，脚本即将启动")
        setTimeout(document.location.protocol == "https:" ? xty:wj,2000)
    }


    //     var js = 0
    //     var elevideo = document.getElementsByClassName("xt_video_player")[0];

    //     function videoEvent(){
    //         //暂停视频，显示
    //         elevideo.pause()
    //         //静音
    //         document.getElementsByClassName("xt_video_player_common_icon")[0].click();
    //         //2X播放
    //         var playSpeedDiv = document.getElementsByClassName("xt_video_player_common_list_wrap")[1];
    //         playSpeedDiv.style.cssText = "display:block;opacity:1;";
    //         setTimeout(function(){
    //             console.log(playSpeedDiv.getElementsByTagName("li")[0])
    //             playSpeedDiv.getElementsByTagName("li")[0].click();

    //             elevideo.removeEventListener('play',videoEvent)
    //         },1000)
    //     }
    //     var zt = setInterval(function(){
    //         elevideo = document.getElementsByClassName("xt_video_player")[0];
    //         if(elevideo && js<20){
    //             elevideo.addEventListener('play',videoEvent)
    //             clearInterval(zt)
    //         }
    //         js++
    //         console.log(js)
    //     },500)

    function xty(){
        //获取video元素、video外层的div、作业页面的元素，用于判断当前处于哪个页面
        var elevideo = document.getElementsByClassName("xt_video_player")[0];
        var idVideo = document.getElementById("video-box");
        var zy = document.getElementsByClassName("container-body")[0];
        //处理地址
        var url = window.location.href;
        var urlSplit = url.split('video/');
        var newUrl = urlSplit[0] + "video/" + (Number(urlSplit[1])+1);
        //判断当前页面状态
        if(elevideo){
            output(importantInfo,"当前为学堂云平台,脚本运行中...")
            output(importantInfo,"请注意，脚本可能会切换章节出错，需要手动介入")
            output(importantInfo,`当前时间：${new Date().getHours()}:${new Date().getMinutes()}:${new Date().getSeconds()}`);

            //监听视频是否播放完毕
            elevideo.addEventListener('ended',function(){
                output(journal,"视频已播放完毕，即将切换到下一课件...")
                setTimeout(function(){window.location.href = newUrl},3000)
            })
        }else if(idVideo){
            output(importantInfo,"脚本已跳转到不正确的地址，请手动介入:点击右上角目录，手动切换到未学习的课节，脚本将自动运行");
            output(importantInfo,`脚本已暂停，当前时间：${new Date().getHours()}:${new Date().getMinutes()}:${new Date().getSeconds()}`);
        }else if(zy){
            output(importantInfo,"当前为学堂云平台作业页面，自动答题中...")
            output(importantInfo,"目前仅支持单选题")
            //答题序号列表的li
            var numberList = document.getElementsByClassName("exam-aside--close")[0].getElementsByTagName("li");
            //提交答案按钮
            var btn = document.getElementsByClassName("text-center")[0].getElementsByTagName("button")[0];
            var i = 0;
            //答题逻辑(代码有点烂，层层套娃，技术有限)
            function answer(){
                if(i < numberList.length){
                    numberList[i].getElementsByTagName("div")[0].click();
                    setTimeout(function(){
                        //题目答案列表
                        var daan = document.getElementsByClassName("list-unstyled")[0].getElementsByTagName("li");
                        var z = 0;
                        function answer2(){
                            if(numberList[i].getElementsByTagName("svg").length){
                                output(journal,`第${i+1}题已回答正确，进入下一题`);
                                i++;
                                z = 0;
                                answer();
                            }else{
                                setTimeout(function(){
                                    daan[z].getElementsByTagName("label")[0].click();
                                    z++;
                                },1000)
                                setTimeout(function(){btn.click()},1500)
                                setTimeout(function(){answer2()},4000)
                            }
                        }
                        answer2();
                    },1000)
                }else{
                    output(journal,"所有题目回答完毕，即将进行跳转...")
                    setTimeout(function(){window.location.href = newUrl},3000)
                }
            }
            answer();
        }else{
            output(importantInfo,"当前为学堂云平台，未进入学习或作业页面,等待中...")
        }
        //监听地址栏变化
        var dsq = setInterval(function(){
            var nUrl = window.location.href;
            if(nUrl != url){
                output(importantInfo,"用户已手动切换课件，脚本即将重新启动...")
                clearInterval(dsq)
                setTimeout(xty,10000)
            }
        },3000)
        }

    function wj(){
        var btn = document.getElementsByName("w_main")[0].contentWindow.document.getElementById("w_code");
        if(btn){
            var btn2 = btn?.contentWindow?.document?.getElementById("tdPlayerControl")?.childNodes;
            if(btn2 == undefined){
                return setTimeout(wj,2000);
            }
            output(importantInfo,"当前为网教平台，脚本运行中...")
            var btnPrev = btn2[1];
            var btnNext = btn2[3];
            var wjdsq = null;
            var vChange = NaN;
            function fn(speed){
                var v = vChange;
                wjdsq = setInterval(function(){
                    //看看这一长串，真的是比俄罗斯套娃还能套
                    var isxx = document.getElementsByName("w_main")[0].contentWindow.document.getElementById("w_lms_content").contentWindow.document.getElementsByTagName("tr")[1].getElementsByTagName("td")[0].innerHTML.indexOf("已经学习完毕");
                    if(isxx > 0){
                        btnNext.click();
                        output(journal,`已自动切换下一课件，当前时间：${new Date().getHours()}:${new Date().getMinutes()}:${new Date().getSeconds()}`)
                        if(v == vChange && document.visibilityState == "visible"){
                            output(importantInfo,"页面已重回前台台,恢复正常模式")
                            clearInterval(wjdsq)
                            return fn(90)
                        }
                    }else{
                        btnNext.click();
                        setTimeout(function(){btnPrev.click()},500)
                        if(speed > 20){
                            output(importantInfo,`当前课件计时疑似出错，将进行重试，当前时间：${new Date().getHours()}:${new Date().getMinutes()}:${new Date().getSeconds()}`);
                            if(v == vChange && document.visibilityState == "hidden"){
                                output(importantInfo,"页面可能已置于后台,启用激活模式")
                                clearInterval(wjdsq)
                                return fn(20)
                            }
                        }

                    }
                },1000*speed)
            };
            fn(90);
            document.addEventListener('visibilitychange',function(){
                if(document.visibilityState == "visible"){
                    vChange = "v"
                }else if(document.visibilityState == "hidden"){
                    vChange = "h"
                }
            })
        }else{
            output(importantInfo,"当前为网教平台，未进入学习界面，等待中...")
            var list = document.getElementsByName("w_main")[0].contentWindow.document.getElementById("frame_learning_content_1").getElementsByTagName("a");
            for(var a of list){
                a.addEventListener("click",function(){
                    return setTimeout(wj,3000)
                })
            }
        }
    }
    //根据协议名判断是哪个平台，设置延时器是防止页面未加载完成导致脚本出错（弃用，使用onload代替）
    //setTimeout(document.location.protocol == "https:" ? xty:wj,10000)
})();