// ==UserScript==
// @name         HDUOJ增强
// @namespace    YinTianliang_i
// @version      0.2.3
// @description  自动登录HDUOJ，提供历史contests选项
// @author       Yin Tianliang
// @include      *//hdu.hustoj.com/*
// @include      *//acm.hdu.edu.cn/*
// @include      *//acm.split.hdu.edu.cn/*
// @require      https://code.jquery.com/jquery-3.2.1.min.js
// @grant        none
// @run-at       document-start
// @downloadURL none
// ==/UserScript==
//alert('YES');
//console.log(window.location.toString())
//TODO:判断当前登录状态

let getCookie = (cookiename) => { return window.localStorage[cookiename]; };
let setCookie = (cname, value) => { window.localStorage[cname] = value; };

function setUserInfo() {
    let username = prompt("请输入用户名:");
    let userpass = prompt("请输入密码：");
    setCookie("username", username);
    setCookie("userpass", userpass);
    return [username, userpass];
}

function contestLogin(contestID, contestPSW) {
    $.ajax({
        type: "post",
        url: `http://${window.location.host}/diy/contest_login.php?cid=${contestID}&action=login`,
        data: {
            Origin: `http://${window.location.host}`,
            Referer: `http://${window.location.host}`,
            password: contestPSW
        },
        success: function () {
            //alert('Login Success!');
        }
    });
}


//如果跳转到了登录界面，则开始执行逻辑
//提取url中的contestID 判断是否在cookie中
let reg = new RegExp("diy/contest_login.php.cid=(\\d+)");
let arr = window.location.toString().match(reg);
if (arr) {

    //用户登录
    let username = getCookie("username");
    let userpass = getCookie("userpass");
    let contestID = getCookie("contestID");
    let contestPSW = getCookie("contestPSW");
    if (username === undefined || userpass === undefined) {
        [username, userpass] = setUserInfo();
    }

    $.ajax({
        type: "post",
        url: `http://${window.location.host}/userloginex.php?action=login`,
        data: {
            Origin: `http://${window.location.host}`,
            Referer: `http://${window.location.host}`,
            username: username,
            userpass: userpass,
            login: "Sign In"
        },
        success: function () {
            //alert('Login Success!');
        }
    });


    //单项测试登录
    if (!new RegExp(arr[1]).test(contestID)) {
        let psw = prompt("该测试的口令未被记录，请输入该测试的口令");
        if (contestID === undefined) {
            contestID = arr[1];
            contestPSW = psw;
        } else {
            contestID += '|' + arr[1];
            contestPSW += '|' + psw;
        }
        setCookie("contestID", contestID);
        setCookie("contestPSW", contestPSW);
    }
    contestID = contestID.split('|');
    contestPSW = contestPSW.split('|');
    for (let i = 0; i < contestID.length; i++) {
        contestLogin(contestID[i], contestPSW[i]);
    }


    //跳转到题目页面
    window.location.href = `http://${window.location.host}/diy/contest_show.php?cid=${arr[1]}`;
}

let contestID = getCookie("contestID").split('|');
let divObj = document.createElement("div");
divObj.style = 'text-align:center';
divObj.innerHTML = '历史contests:';
for (let i in contestID) {
    divObj.innerHTML += `<a href="/diy/contest_show.php?cid=${contestID[i]}">${contestID[i]} </a>`;
}
divObj.innerHTML += '<a href="javascript:localStorage.clear();window.location.reload()">清空数据</a>';
document.body.insertBefore(divObj, document.body.firstChild);