window.onload = function(){
    if(window.location.href.indexOf("https://www.wjx.cn/wjx/join/complete.aspx")>-1){
        window.location.href="https://www.wjx.cn/vj/PprjttC.aspx";
    }
    setTimeout(()=>{
        startMain();
    },3000)
}
//题目内容div
var survey = '';
//里面的列表
var fieldset1 = '';
var divQuestion = '';
var questionNum = 0;

var scrollTotal = document.body.scrollHeight-window.innerHeight

//函数入口
function startMain(){
    console.log("fxxk");
    survey = document.getElementById("ctl00_ContentPlaceHolder1_JQ1_surveyContent");
    fieldset1 = document.getElementById("fieldset1");
    divQuestion = document.getElementsByClassName("div_question");
    //获取题目的长度
    questionNum = divQuestion.length;
    //console.log(questionNum);
    answerQuestion(questionNum);
}

//某道题的选项ul列表标签
var radioUl = '';
var radioLi = '';
var firstA = '';
var answerType = ''
function answerQuestion(qn){
    console.log("接收到"+qn)
    let i = 0;
    var exAws = setInterval(() => {
        if(i==qn){
            clearInterval(exAws);
            //答卷完毕，准备提交
            document.getElementById("submit_button").click();
            setTimeout(() => {
                if(document.getElementById("alert_box")){
                    document.getElementById("alert_box").getElementsByClassName("mainBgColor")[0].click(); 
                    setTimeout(() => {
                       document.getElementsByClassName("out-silder-circle")[0].click(); 
                    }, 1500);
                }
            }, 3000);
        }
        else{
            radioUl = divQuestion[i].getElementsByClassName("ulradiocheck");
            radioLi = divQuestion[i].getElementsByTagName("li");
            answerType = divQuestion[i].getElementsByTagName("li")[0].getElementsByTagName("input")[0].getAttribute("type");
            //console.log(answerType);
            //console.log(i)
            fillAnswer(i);
            //console.log(radioUl)
            i++;
        }   
    }, 1000);
}

function fillAnswer(n){
    var length = radioLi.length;
    //console.log("答案有"+length+"个")
    //判断单选还是多选
    if(answerType=='radio'){
        //如果是单选，随机选一个选项
        var answerChoose = Math.round(Math.random()*(length-1));
        console.log(answerChoose)
        divQuestion[n].getElementsByTagName("li")[answerChoose].getElementsByTagName("a")[0].click();
    }
    else if(answerType=='checkbox'){
        //如果是多选，先随机出要选几个答案，再随机选择
        var answerNum = Math.ceil(Math.random()*length);
        var answerArray = [];
        var answerChoose;
        console.log("答案有:"+answerNum+"个")
        for(let i = 0;i<answerNum;i++){
            answerChoose = Math.round(Math.random()*(length-1));
            console.log("-------------------")
            console.log(answerArray)
            console.log(answerChoose)
            console.log("-------------------")
            //防止两次随机到一样的选项
            while(answerArray.indexOf(answerChoose)>-1){
                answerChoose = Math.round(Math.random()*(length-1));
            }
            divQuestion[n].getElementsByTagName("li")[answerChoose].getElementsByTagName("a")[0].click();
            answerArray.push(answerChoose)
        }
    }  
    window.scrollBy(0,scrollTotal/questionNum)
}