// ==UserScript==
// @name         VJudge Duel++
// @match        https://duel.gengen.qzz.io/*
// @match        https://www.luogu.com.cn/record/list*
// @match        https://www.luogu.com.cn/record/*
// @icon         https://cdn.luogu.com.cn/upload/image_hosting/lb8qcsrx.png
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_deleteValue
// @grant        GM_xmlhttpRequest
// @connect      duel.gengen.qzz.io
// @run-at       document-idle
// @version      1.0
// @license All Rights Reserved
// @description  GenGen RMJ AND VJudge Duel 增强插件
// ==/UserScript==
(function(){'use strict';
const L=console.log,h=location.host,p=location.pathname,s=location.search+location.hash;
const g=k=>GM_getValue(k,null);
const v=(k,d)=>{L('[VJudge Duel++] 写入GM存储:',k,d);GM_setValue(k,d)};
const d=k=>{L('[VJudge Duel++] 删除GM存储:',k);GM_deleteValue(k)};
const sent=new Set();

if(h.includes('duel.gengen.qzz.io')){
    L('[VJudge Duel++] 检测到Duel对战页面');
    const raw=localStorage.getItem('vjudge-duel.session');
    if(raw){
        try{const usr=JSON.parse(raw).username;L('[VJudge Duel++] 成功解析LocalStorage用户:',usr);v('u',usr)}
        catch(e){L('[VJudge Duel++] LocalStorage解析失败:',e)}
    }else{
        const cu=g('u');
        if(cu)L('[VJudge Duel++] LocalStorage为空，使用GM缓存用户:',cu);
        else L('[VJudge Duel++] 未找到vjudge-duel.session且无缓存');
    }
    const rm=s.match(/room=([a-f0-9]+)/),sc=s.match(/secret=([a-f0-9]+)/);
    L('[VJudge Duel++] URL参数解析 - 房间号:',rm?.[1],'密钥:',!!sc?.[1]);
    if(rm&&sc){
        v('r',{id:rm[1],s:sc[1]});
        L('[VJudge Duel++] 开始持续轮询题目列表节点...');
        const pt=setInterval(()=>{
            const nds=document.querySelectorAll('.problem-heading a');
            if(!nds.length)return;
            clearInterval(pt);
            const ps=[];
            nds.forEach(nd=>{
                const txt=nd.innerText.trim(),pf=txt.split(/\s+/)[0];
                let pid=txt.replace(/^\S+\s*/,'').replace(/^[_\-]/,'');
                if(pf.toLowerCase()==='atcoder')pid=pid.toLowerCase();
                else if(pf.toLowerCase()==='codeforces')pid=pid.toUpperCase();
                if(pid)ps.push(pid);
            });
            L('[VJudge Duel++] 题目列表解析完成(已过滤空值):',ps);
            v('p',ps);
        },500);
    }
    setInterval(()=>{
        if(document.body.innerText.match(/比赛已封档|只读观赛/)){
            L('[VJudge Duel++] 检测到比赛封档/只读观赛，清除当前房间数据');
            d('u');d('r');d('p');
        }
    },10000);
}

if(h.includes('www.luogu.com.cn')){
    L('[VJudge Duel++] 检测到洛谷提交记录页面');
    const u=g('u'),rm=g('r'),pbs=g('p');
    L('[VJudge Duel++] 读取GM数据 - 用户:',u,'房间:',rm,'题目列表:',pbs);
    if(!u||!rm||!pbs||!pbs.length){L('[VJudge Duel++] GM数据缺失或题目列表为空，终止执行');return}

    const sendClaim=(np)=>{
        if(sent.has(np))return;
        sent.add(np);
        L('[VJudge Duel++] 匹配成功！发送Manual Claim请求, 题号:',np);
        GM_xmlhttpRequest({method:'POST',url:`https://duel.gengen.qzz.io/api/rooms/${rm.id}/manual-claim?secret=${rm.s}`,headers:{'content-type':'application/json'},data:JSON.stringify({userName:u,pid:np}),onload:r=>L('[VJudge Duel++] Claim请求响应:',r.status,r.responseText),onerror:e=>L('[VJudge Duel++] Claim请求失败:',e)});
    };

    // === 单条记录详情页 (30s超时) ===
    const dm=p.match(/^\/record\/(\d+)$/);
    if(dm){
        L('[VJudge Duel++] 检测到单条记录详情页:',dm[1]);
        L('[VJudge Duel++] 开始30秒内轮询指定状态节点...');
        const st=Date.now();
        const dt=setInterval(()=>{
            if(Date.now()-st>30000){clearInterval(dt);L('[VJudge Duel++] 30秒超时，未检测到终态，终止');return}
            const se=document.querySelector("#app > div.main-container > main > div > section.side > div > div.info-rows > div:nth-child(2) > span:nth-child(2) > span");
            const pl=document.querySelector("#app > div.main-container > main > div > section.side > div > div.info-rows > div:nth-child(1) > span:nth-child(2) > span > div > a");
            if(!se||!pl)return;
            const stx=se.innerText.trim();
            if(!stx||/waiting|judging|pending|compiling|running/i.test(stx))return;
            if(stx!=='AC'&&stx!=='Accepted'){clearInterval(dt);L('[VJudge Duel++] 终态为:'+stx+'，非AC/Accepted，终止');return}
            clearInterval(dt);
            let np=(pl.href.match(/\/problem\/(.+)$/)||[])[1]||'';
            const sp=pl.querySelector('.pid');
            if(sp)np=sp.innerText.trim()||np;
            L('[VJudge Duel++] 详情页原始题目ID:',np);
            if(/^AT_/i.test(np))np=np.replace(/^AT_/i,'').toLowerCase();
            else if(/^CF/i.test(np))np=np.replace(/^CF/i,'').toUpperCase();
            L('[VJudge Duel++] 归一化后题目ID:',np,'比赛题目列表:',pbs);
            if(!pbs.includes(np)){L('[VJudge Duel++] 该题目不在当前比赛列表中，跳过Claim');return}
            sendClaim(np);
        },500);
        return;
    }

    // === 提交记录列表页 ===
    const mj=new URLSearchParams(location.search).get('rmj');
    L('[VJudge Duel++] RMJ模式参数:',mj);
    if(mj==='1'||mj==='2'){
        // GenGen RMJ模式：无限轮询，每次取最新5条
        L('[VJudge Duel++] RMJ模式开启，无限轮询最新5条.cf-card...');
        setInterval(()=>{
            const cards=document.querySelectorAll('.cf-card');
            if(!cards.length)return;
            const top5=[...cards].slice(0,5);
            L('[VJudge Duel++] 本轮检查'+top5.length+'条.cf-card记录');
            top5.forEach(card=>{
                if(!card.innerHTML.includes('Accepted'))return;
                const al=card.querySelector('.cf-problem a');
                if(!al)return;
                let np=(al.href.match(/\/problem\/(.+)$/)||[])[1]||'';
                if(mj==='2')np=np.replace(/^AT_/i,'').toLowerCase();
                else if(mj==='1')np=np.replace(/^CF/i,'').toUpperCase();
                if(!pbs.includes(np))return;
                sendClaim(np);
            });
        },2000);
    }else{
        // 普通洛谷模式：30s超时，仅检测最新一条.row
        L('[VJudge Duel++] 普通洛谷模式，30秒内轮询最新.row...');
        const st=Date.now();
        const ct=setInterval(()=>{
            if(Date.now()-st>30000){clearInterval(ct);L('[VJudge Duel++] 30秒超时，未检测到AC，终止');return}
            const rw=document.querySelector('.row');
            if(!rw)return;
            if(!rw.innerHTML.includes('Accepted'))return;
            const al=rw.querySelector('.problem a');
            if(!al)return;
            clearInterval(ct);
            let np=(al.href.match(/\/problem\/(.+)$/)||[])[1]||'';
            L('[VJudge Duel++] 普通模式原始题目ID:',np);
            if(!pbs.includes(np)){L('[VJudge Duel++] 该题目不在当前比赛列表中，跳过Claim');return}
            sendClaim(np);
        },800);
    }
}
})();