// ==UserScript==
// @name         学堂云/雨课堂(是雨课堂4.0,非雨课堂,题库自动搜集)
// @namespace    dandanmuaa@gmail.com
// @version      1.2
// @description  雨课堂脚本
// @author       sea of flowers
// @match        *://*.yuketang.cn/*
// @match        *://*.edu.cn/*
// @connect      huan.fm210.cn
// @grant        unsafeWindow
// @grant        GM_xmlhttpRequest
// @grant        GM_addStyle
// @grant        GM_getResourceText
// @require      https://unpkg.com/sweetalert/dist/sweetalert.min.js
// @resource cs1 https://www.layuicdn.com/layui/css/layui.css
// @run-at       document-end
// @antifeature  ads
// @antifeature  menbership
// ==/UserScript==
 
(function() {
    'use strict';
 
    // 设置修改后，需要刷新或重新打开网课页面才会生效
    var setting = {
        passVideo:1,
        passWork:1,
        passExam:1,
        runTimeOut:6000,
        doTimeOut:6000,
    };
 
    var window = unsafeWindow;
    var url = window.location.href;
 
    GM_addStyle(GM_getResourceText("cs1"));
 
    function fillAnswer(type,answer){
        if(type.match("单选题")){
            var optionNum = document.getElementsByClassName("radioText").length;
            for (let i=0;i<optionNum;i++){
                let content = document.getElementsByClassName("radioText")[i].textContent.replace(/[\r\n]| /g, "");
                if (content == answer[0].replace(/[\r\n]| /g, "")){
                    setTimeout(function(){
                        document.getElementsByClassName("radioInput")[i].click();}, 1000);
                    console.log("匹配成功");
                }
                else{
                    console.log("匹配失败")
                }
            }
        }
        else if(type.match("多选题")){
            var checkBoxNum = document.getElementsByClassName("checkboxText").length;
            for (let i=0;i<checkBoxNum;i++){
                let content = document.getElementsByClassName("checkboxText")[i].textContent.replace(/[\r\n]/g, "");
                for (let j=0;j<answer.length;j++){
                    if (content == answer[j].replace(/[\r\n]| /g, "")){
                        setTimeout(function() {
                            document.getElementsByClassName("checkboxInput")[i].click();},1000);
                        console.log("匹配成功",i)
                    }
                    else{
                        console.log("匹配失败")
                    }
                }
            }
        }
        else if(type.match("判断题")){
            if (answer[0].match(/(^|,)(正确|是|对|√|T|ri|right|true)(,|$)/)) {
                document.getElementsByClassName("radioInput")[0].click();
            }
            else if (answer[0].match(/(^|,)(错误|否|错|×|F|wr|wrong|false)(,|$)/)) {
                document.getElementsByClassName("radioInput")[1].click();
            }
            else{
                console.log("匹配失败");
            }
        }
        setTimeout(function() {
            document.getElementsByClassName("el-button el-button--text")[1].click();},1000);
    }
 
    function findAnswer(question,type){
        GM_xmlhttpRequest({
            method: 'GET',
            url: 'https://huan.fm210.cn/api/answer?keyword=' + encodeURIComponent(question.replace(/[\r\n]/g, "")),
            headers: {
                'Content-type': 'application/x-www-form-urlencoded'
            },
            timeout: setting.doTimeOut,
            onload: function(xhr) {
                if (xhr.status == 200) {
                    var obj = JSON.parse(xhr.responseText) || {};
                    var value = document.getElementsByClassName("el-button el-button--text is-disabled")
                    var number = document.getElementsByClassName("item-type")[0].textContent.replace(/[\r\n]| /g, "")
                    var content = document.getElementsByClassName("layui-card-body")[1]
                    document.getElementsByClassName("layui-card-body")[0].innerHTML = obj.msg;
                    if (obj.code==1) {
                        content.innerHTML += number +"，答案："+obj._source.da+"<br>";
                        var answer = obj._source.da.split("#");
                        if(document.getElementsByClassName("el-button el-button--primary el-button--medium").length==1){
                            fillAnswer(type,answer);
                        }
                        else{
                            document.getElementsByClassName("el-button el-button--text")[1].click();
                        };
                    }
                    else{
                        content.innerHTML += number +"，答案：暂未收录<br>"
                        document.getElementsByClassName("el-button el-button--text")[1].click();
                    };
                    if(value.length==1&&value[0].textContent=="下一题"){
                        setTimeout(function(){
                            swal({
                                title: "搜题已完成",
                                text: "本脚本不保证答案最终准确率，请用户自行检查并提交。\n感谢配合",
                                icon: "success",
                                button: "收到",
                            });},1000);
                        clearInterval(setting.loop);
                    };
                }
            }
        });
    }
 
    function pass_video(){
        if(setting.passVideo){
            document.getElementsByClassName("xt_video_bit_play_btn")[0].click();
        }
    }
 
    function pass_homework(){
        if(setting.passWork){
            var question = document.getElementsByClassName("problem-body")[0].textContent;
            var type = document.getElementsByClassName("item-type")[0].textContent;
            findAnswer(question,type);
        }
    }
 
    if (url.match("cn/courselist|cn/v2/web/index")){
        swal({
            title: "欢迎使用雨课堂脚本",
            text: "选择“已接受”或使用该脚本的任何功能，即为遵守使用协议。\n使用协议后续更新不再另行通知。\n脚本协议/使用教程见脚本首页",
            icon: "warning",
            button: "我接受",
        });
    };
 
    if (url.match("/video")){
        console.log("I'm video");
        setTimeout(pass_video,setting.runTimeOut);
    };
 
    if (url.match("/homework|/exercise")){
        var h=document.createElement("div");
        h.setAttribute("class","layui-panel");
        h.setAttribute("style","width: 400px; height:400px; background-color: #eee;position: fixed;right: 40px;top: 40px;z-index: 99999999;overflow-x: auto;");
        var title=document.createElement("div");
        title.setAttribute("class","layui-card-body");
        h.appendChild(title);
 
        var answer=document.createElement("div");
        answer.setAttribute("class","layui-card-body");
        h.appendChild(answer);
        document.body.appendChild(h);
        document.getElementsByClassName("layui-card-body")[0].innerHTML = "脚本初始化中，请耐心等待5秒";
        console.log("I'm homework");
        var num = 0;
        setting.loop = setInterval(pass_homework,setting.runTimeOut);
    };
 
    if (url.match("/exam")){
        setTimeout(function(){
            console.log("I'm exam");
            document.getElementsByClassName("title")[1].innerHTML =
                "考试题库可以微信扫描该二维码下载搜索~<img src='https://www.chitus.com/ewm/create?config=%7B%22content%22%3A%22https%3A%2F%2Fwww.fenbi.com%2Fdepot%2Ffenbi-search-question%2Findex.html%3Fapp%3Dsouti%26signVendor%3D8DFD180AC8706F9A519739C0F9F42CA6%22%7D' width='150px'>";
        },1000);
        swal({
            title: "考试界面",
            text: "考试功能暂不提供，但可扫描二维码下载APP搜题",
            icon: "warning",
            button: "OK",
        });
    };
 
    if (url.match("/graph")){
        setTimeout(function(){
            swal({
                title: "图文章节",
                text: "课件阅读阅读已完成",
                icon: "success",
                button: "OK",
            });
        },1000);
    };
 
})();