// ==UserScript==
// @name         GenGen-RMJ-DET
// @namespace    http://tampermonkey.net/
// @version      4.6.2
// @author       GenGen 队
// @match        https://www.luogu.com.cn/record/cf/*
// @match        https://www.luogu.com.cn/record/at/*
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_xmlhttpRequest
// @connect      codeforces.com
// @connect      www.luogu.com.cn
// @connect      atcoder.jp
// @run-at       document-start
// @description  GenGen RMJ 提交记录详情
// @license      MIT
// ==/UserScript==
(function() {
  const _gmGet = GM_getValue;
  const _gmReq = GM_xmlhttpRequest;

  const VALID = [
    /^https:\/\/www\.luogu\.com\.cn\/record\/cf\/[^/]+\/[^/?#]+/,
    /^https:\/\/www\.luogu\.com\.cn\/record\/at\/[^/]+\/[^/?#]+/,
  ];
  if (!VALID.some(r => r.test(location.href))) return;

  const m = location.pathname.match(/\/record\/(cf|at)\/([^/]+)\/([^/?#]+)/);
  if (!m) return;
  const [, plat, cid, sid] = m;
  const isCF = plat === 'cf';
  const isAT = plat === 'at';

  const handle = _gmGet('cf-handle', '') || _gmGet('rmj-cf-handle', '') || '';
  const code = _gmGet(`{${cid},${sid}}`, '');

  const titleTimer = setInterval(() => { document.title = 'GenGen RMJ 加载中'; }, 100);

  const mask = document.createElement('div');
  mask.id = 'rmj-mask';
  mask.style.cssText = 'position:fixed;top:0;left:0;width:100vw;height:100vh;background:rgb(239,239,239);z-index:2147483647;';
  (document.documentElement || document.body || document).appendChild(mask);

  const CF2LG = {
    OK:12, WRONG_ANSWER:6, TIME_LIMIT_EXCEEDED:5, MEMORY_LIMIT_EXCEEDED:4,
    OUTPUT_LIMIT_EXCEEDED:3, RUNTIME_ERROR:7, COMPILATION_ERROR:2, TESTING:1, WAITING:0
  };
  const FINAL_CF = new Set(['OK','WRONG_ANSWER','COMPILATION_ERROR','RUNTIME_ERROR',
    'TIME_LIMIT_EXCEEDED','MEMORY_LIMIT_EXCEEDED','OUTPUT_LIMIT_EXCEEDED']);
  const TC = 'Luogu\\DataClass\\Record\\JudgeResult\\TestCaseJudgeResult';
  const VERB_DESC = {
    'OK': 'ok accepted', 'WRONG_ANSWER': 'wrong answer',
    'TIME_LIMIT_EXCEEDED': 'time limit exceeded', 'MEMORY_LIMIT_EXCEEDED': 'memory limit exceeded',
    'OUTPUT_LIMIT_EXCEEDED': 'output limit exceeded', 'RUNTIME_ERROR': 'runtime error',
    'COMPILATION_ERROR': 'compilation error', 'TESTING': 'judging', 'WAITING': 'waiting'
  };

  const gmJson = (url) => new Promise((ok, no) => {
    _gmReq({ method:'GET', url, timeout:15000, anonymous:true,
      onload: r => { try { ok(JSON.parse(r.responseText)); } catch (e) { no(e); } },
      onerror: () => no(new Error('net')), ontimeout: () => no(new Error('timeout')) });
  });

  const gmText = (url) => new Promise((ok, no) => {
    _gmReq({ method:'GET', url, timeout:15000, anonymous:true,
      onload: r => r.status === 200 ? ok(r.responseText) : no(new Error('status ' + r.status)),
      onerror: () => no(new Error('net')), ontimeout: () => no(new Error('timeout')) });
  });

  const fetchTemplate = () => new Promise((ok, no) => {
    _gmReq({ method:'GET', url:'https://www.luogu.com.cn/record/290510067', timeout:15000,
      onload: r => r.status === 200 ? ok(r.responseText) : no(new Error('tpl')),
      onerror: () => no(new Error('tpl net')), ontimeout: () => no(new Error('tpl timeout')) });
  });

  async function findCF() {
    let url = `https://codeforces.com/api/contest.status?contestId=${encodeURIComponent(cid)}&from=1&count=100`;
    if (handle) url += `&handle=${encodeURIComponent(handle)}`;
    const d = await gmJson(url);
    if (d.status !== 'OK') throw new Error('CF ' + d.status);
    return (d.result || []).find(x => String(x.id) === sid) || null;
  }

  function parseATStatus(text) {
    if (!text) return 'TESTING';
    text = text.trim();
    if (text === 'AC') return 'OK';
    if (text === 'WA') return 'WRONG_ANSWER';
    if (text === 'TLE' || text.includes('TLE')) return 'TIME_LIMIT_EXCEEDED';
    if (text === 'MLE') return 'MEMORY_LIMIT_EXCEEDED';
    if (text === 'OLE') return 'OUTPUT_LIMIT_EXCEEDED';
    if (text === 'RE') return 'RUNTIME_ERROR';
    if (text === 'CE') return 'COMPILATION_ERROR';
    if (text === 'WJ') return 'WAITING';
    if (text.includes('WA')) return 'WRONG_ANSWER';
    return 'TESTING';
  }

  async function findAT() {
    const url = `https://atcoder.jp/contests/${cid}/submissions/${sid}`;
    const html = await gmText(url);
    const parser = new DOMParser();
    const doc = parser.parseFromString(html, 'text/html');

    const metaTable = doc.querySelector('table.table-bordered');
    const metaRows = metaTable ? metaTable.querySelectorAll('tr') : [];
    const meta = {};
    metaRows.forEach(row => {
      const th = row.querySelector('th');
      const td = row.querySelector('td');
      if (th && td) meta[th.textContent.trim()] = td.textContent.trim();
    });

    const codeEl = doc.querySelector('#submission-code');
    const sourceCode = codeEl ? codeEl.textContent : '';

    const tables = doc.querySelectorAll('table.table-bordered');
    const cases = [];
    let passedCount = 0;

    let caseTable = null;
    for (const t of tables) {
      const header = t.querySelector('thead th, tr th');
      if (header && (header.textContent.includes('Case Name') || header.textContent.includes('Status'))) {
        caseTable = t; break;
      }
    }

    if (caseTable) {
      caseTable.querySelectorAll('tbody tr').forEach((row, index) => {
        const tds = row.querySelectorAll('td');
        if (tds.length >= 4) {
          const statusText = tds[1].textContent.trim();
          const timeMatch = tds[2].textContent.trim().match(/(\d+)/);
          const memMatch = tds[3].textContent.trim().match(/(\d+)/);
          const verdict = parseATStatus(statusText);
          if (verdict === 'OK') passedCount++;
          cases.push({
            id: `${index + 1}`,
            status: verdict,
            time: timeMatch ? parseInt(timeMatch[1]) : null,
            memKB: memMatch ? parseInt(memMatch[1]) : null
          });
        }
      });
    }

    let overallVerdict = parseATStatus(meta['Status'] || '');
    if (overallVerdict === 'OK' && passedCount < cases.length && cases.length > 0) overallVerdict = 'TESTING';

    const timeMatch = (meta['Exec Time'] || '').match(/(\d+)/);
    const memMatch = (meta['Memory'] || '').match(/(\d+)/);

    const taskText = meta['Task'] || '';
    let taskIndex = 'a';
    const taskLink = metaTable ? metaTable.querySelector('a[href*="/tasks/"]') : null;
    if (taskLink) {
      const linkMatch = (taskLink.getAttribute('href') || '').match(/\/tasks\/[^_]+_(.+)$/i);
      if (linkMatch) taskIndex = linkMatch[1].toLowerCase();
    } else {
      const textMatch = taskText.match(/^([A-Za-z0-9]+)/);
      if (textMatch) taskIndex = textMatch[1].toLowerCase();
    }

    let submitTime = 0;
    const timeStr = meta['Submission Time'] || '';
    if (timeStr) {
      const tm = timeStr.match(/^(\d{4}-\d{2}-\d{2}) (\d{2}:\d{2}:\d{2})([+-]\d{2})(\d{2})$/);
      submitTime = tm ? Math.floor(new Date(`${tm[1]}T${tm[2]}${tm[3]}:${tm[4]}`).getTime() / 1000) : (Math.floor(new Date(timeStr).getTime() / 1000) || 0);
    }

    return {
      isAT: true, verdict: overallVerdict, passedTestCount: passedCount,
      timeConsumedMillis: timeMatch ? parseInt(timeMatch[1]) : 0,
      memoryConsumedBytes: memMatch ? parseInt(memMatch[1]) * 1024 : 0,
      problem: { name: taskText, index: taskIndex }, sourceCode, cases, creationTimeSeconds: submitTime
    };
  }

  function buildCases(sub, time, memKB) {
    if (sub.isAT) {
      return sub.cases.map(c => ({
        id: c.id, status: CF2LG[c.status] ?? 0,
        description: VERB_DESC[c.status] || String(c.status).toLowerCase().replace(/_/g, ' '),
        score: null, signal: 0, exitCode: 0, subtaskID: 0, __CLASS_NAME: TC,
        time: c.time ?? null, memory: c.memKB ?? null
      }));
    }
    const lgCode = CF2LG[sub.verdict] ?? 0;
    const isAC = sub.verdict === 'OK';
    const isCE = sub.verdict === 'COMPILATION_ERROR';
    const passed = sub.passedTestCount ?? 0;
    if (isCE) return [];
    let idNum, status;
    if (isAC) { idNum = passed > 0 ? passed : 1; status = 12; }
    else { idNum = passed + 1; status = (sub.verdict === 'TESTING') ? 1 : lgCode; }
    return [{ id: `${idNum}`, status, description: VERB_DESC[sub.verdict] || String(sub.verdict).toLowerCase().replace(/_/g, ' '),
      score: null, signal: 0, exitCode: 0, subtaskID: 0, __CLASS_NAME: TC, time: time ?? null, memory: memKB ?? null }];
  }

  function buildRecordSubset(sub, recId) {
    const lgCode = CF2LG[sub.verdict] ?? 0;
    const isCE = sub.verdict === 'COMPILATION_ERROR';
    const isFinal = FINAL_CF.has(sub.verdict);
    const time = isFinal ? (sub.timeConsumedMillis ?? 0) : 0;
    const memKB = isFinal ? Math.round((sub.memoryConsumedBytes ?? 0) / 1024) : 0;
    const cases = buildCases(sub, time, memKB);
    const tcMap = {};
    cases.forEach(c => { tcMap[c.id] = c; });
    return JSON.parse(JSON.stringify({
      detail: { __CLASS_NAME:'Luogu\\DataClass\\Record\\RecordDetail',
        compileResult:{ __CLASS_NAME:'Luogu\\DataClass\\Record\\JudgeResult\\CompileResult', message:null, opt2:false, success:!isCE },
        judgeResult:{ __CLASS_NAME:'Luogu\\DataClass\\Record\\JudgeResult\\JudgeResult',
          finishedCaseCount:cases.length, memory:memKB, score: null, status:lgCode,
          subtasks:[{ __CLASS_NAME:'Luogu\\DataClass\\Record\\JudgeResult\\SubtaskJudgeResult',
            id:0, judger:'', memory:memKB, score: null, status:lgCode, testCases:tcMap, time }], time },
        version:400 },
      enableO2:true, id: Number(recId), memory:memKB, status:lgCode, time, score: null,
    }));
  }

  const buildStatusPush = (sub, id) => ({
    _channel:'record.track', _channel_param:String(id),
    _ws_type:'server_broadcast', record:buildRecordSubset(sub, id), type:'status_push'
  });

  const PAGE_HOOK = `(function(){var PORT=null,latestPush=null;class FakePort extends EventTarget{constructor(){super();this._om=null;}get onmessage(){return this._om;}set onmessage(fn){this._om=fn;if(latestPush&&typeof this._om==='function'){setTimeout(()=>{try{this._om({type:'message',data:JSON.stringify(latestPush)+'\\n'});}catch(e){}},500);}}start(){}close(){}postMessage(msg){let p=null;try{if(typeof msg==='string')p=JSON.parse(msg);else if(msg&&msg.type==='join_channel')p=msg;else if(msg&&msg.func==='send'&&Array.isArray(msg.parameters)){for(let item of msg.parameters){if(typeof item==='string'){p=JSON.parse(item);break;}}}}catch(e){}if(p&&latestPush){var jr={_channel:'record.track',_channel_param:p.channel_param||latestPush._channel_param,_ws_type:'join_result',client_number:1,result:'success',type:'result',welcome_message:{detail:latestPush.record.detail,memory:null,record:latestPush.record,score:latestPush.record.score||null,status:latestPush.record.status,time:null,type:'status_push'}};setTimeout(()=>this._emit({type:'message',data:JSON.stringify(jr)+'\\n'}),200);}}_emit(data){var ev=new MessageEvent('message',{data:data});this.dispatchEvent(ev);if(typeof this._om==='function')try{this._om(ev);}catch(err){}}}function FakeSW(){this.port=PORT=new FakePort();}if(window.SharedWorker){var OSW=window.SharedWorker;window.SharedWorker=new Proxy(OSW,{construct:function(){return new FakeSW();}});}window.addEventListener('message',function(e){if(e.data&&e.data.__rmj_ws_push__){latestPush=e.data.payload;if(PORT&&typeof PORT._om==='function'){PORT._emit({type:'message',data:JSON.stringify(latestPush)+'\\n'});}}});})();`;

  function buildHtml(tpl, sub) {
    tpl = tpl.replace(/<head[^>]*>/i, m => m + '<script>' + PAGE_HOOK + '</' + 'script>');
    const FE_RE = /window\._feInjection\s*=\s*JSON\.parse\(decodeURIComponent\("([^"]+)"\)\)/;
    const fm = tpl.match(FE_RE);
    if (!fm) return tpl;
    let data = JSON.parse(decodeURIComponent(fm[1]));
    const rec = data?.currentData?.record;
    if (!rec) return tpl;
    const cu = data.currentUser;
    if (rec.user && cu) Object.assign(rec.user, { uid: cu.uid, name: cu.name, avatar: cu.avatar, color: cu.color || '', slogan: cu.slogan || '' });

    if (isAT && sub && sub.sourceCode) { rec.sourceCode = sub.sourceCode; rec.sourceCodeLength = sub.sourceCode.length; }
    else if (code) { rec.sourceCode = code; rec.sourceCodeLength = code.length; }
    else { rec.sourceCode = '// 未找到该提交的源代码\n// 请前往原站查看'; rec.sourceCodeLength = 0; }

    if ((isCF || isAT) && sub) {
      const lgCode = CF2LG[sub.verdict] ?? 0;
      const isFinal = FINAL_CF.has(sub.verdict);
      const time = isFinal ? (sub.timeConsumedMillis ?? 0) : 0;
      const memKB = isFinal ? Math.round((sub.memoryConsumedBytes ?? 0) / 1024) : 0;
      if (rec.problem && sub.problem) {
        if (isCF) { rec.problem.pid = `CF${cid}${sub.problem.index}`; rec.problem.title = sub.problem.name; rec.problem.fullScore = 0; }
        else if (isAT) { rec.problem.pid = `AT_${cid}_${sub.problem.index}`; rec.problem.title = sub.problem.name; rec.problem.fullScore = 0; }
      }
      rec.status = lgCode; rec.time = time; rec.memory = memKB; rec.score = null;
      rec.id = Number(sid) || rec.id;
      if (sub.creationTimeSeconds) rec.submitTime = sub.creationTimeSeconds;
      if (rec.detail?.compileResult) rec.detail.compileResult.success = sub.verdict !== 'COMPILATION_ERROR';
      const cases = buildCases(sub, time, memKB);
      const tcMap = {};
      cases.forEach(c => { tcMap[c.id] = c; });
      if (rec.detail?.judgeResult) {
        rec.detail.judgeResult.subtasks = [{ __CLASS_NAME:'Luogu\\DataClass\\Record\\JudgeResult\\SubtaskJudgeResult', id:0, score: null, status:lgCode, testCases:tcMap, judger:'', time, memory:memKB }];
        rec.detail.judgeResult.finishedCaseCount = cases.length;
        rec.detail.judgeResult.status = lgCode;
        rec.detail.judgeResult.time = time;
        rec.detail.judgeResult.memory = memKB;
        rec.detail.judgeResult.score = null;
      }
      data.currentTitle = isCF ? `CF${cid}${sub.problem?.index || ''} #${sid}` : `AT_${cid}_${sub.problem?.index || ''} #${sid}`;
    }
    data = JSON.parse(JSON.stringify(data));
    return tpl.replace(FE_RE, () => 'window._feInjection = JSON.parse(decodeURIComponent("' + encodeURIComponent(JSON.stringify(data)) + '"))');
  }

  (async () => {
    if (window.__RMJ_MAIN_RAN__) return;
    window.__RMJ_MAIN_RAN__ = true;

    // ========== 缓存写入核心函数 ==========
    const updateCache = (sub) => {
      if (!sub) return;
      if (isCF) {
        const CACHE_KEY_CF = 'cf-submissions-cache';
        let cache = [];
        try { cache = JSON.parse(GM_getValue(CACHE_KEY_CF, '[]')); if (!Array.isArray(cache)) cache = []; } catch { cache = []; }

        const item = {
          id: String(sid),
          taskDisplay: `CF${cid}${sub.problem.index} - ${sub.problem.name}`,
          status: sub.verdict || 'Waiting',
          timestamp: (sub.creationTimeSeconds || 0) * 1000,
          submitUrl: `https://www.luogu.com.cn/record/cf/${cid}/${sid}`,
          luoguUrl: `https://www.luogu.com.cn/problem/CF${cid}${sub.problem.index}`,
          passedTestCount: sub.passedTestCount
        };

        const idx = cache.findIndex(c => c.id === String(sid));
        if (idx !== -1) {
          cache[idx] = { ...cache[idx], ...item };
        } else {
          cache.unshift(item);
        }
        cache.sort((a, b) => Number(b.id) - Number(a.id));
        GM_setValue(CACHE_KEY_CF, JSON.stringify(cache));
        GM_setValue('cf-last-update', Date.now());
      } else if (isAT) {
        const CACHE_KEY_AT = 'at-submissions-cache';
        let cache = [];
        try { cache = JSON.parse(GM_getValue(CACHE_KEY_AT, '[]')); if (!Array.isArray(cache)) cache = []; } catch { cache = []; }

        const AT_VERDICT_MAP = {
          'OK': 'AC', 'WRONG_ANSWER': 'WA', 'TIME_LIMIT_EXCEEDED': 'TLE',
          'MEMORY_LIMIT_EXCEEDED': 'MLE', 'OUTPUT_LIMIT_EXCEEDED': 'OLE',
          'RUNTIME_ERROR': 'RE', 'COMPILATION_ERROR': 'CE', 'WAITING': 'WJ', 'TESTING': 'WJ'
        };
        const atStatus = AT_VERDICT_MAP[sub.verdict] || 'WJ';
        const FINAL_AT = new Set(['AC', 'WA', 'CE', 'RE', 'TLE', 'MLE', 'OLE', 'IE']);

        const taskKey = `${cid}_${sub.problem.index}`;
        const item = {
          id: String(sid),
          taskKey: taskKey,
          taskDisplay: `${taskKey} - ${sub.problem.index.toUpperCase()} - ${sub.problem.name}`,
          status: atStatus,
          submitUrl: `https://atcoder.jp/contests/${cid}/submissions/${sid}`,
          luoguUrl: `https://www.luogu.com.cn/problem/AT_${taskKey}`,
          timestamp: (sub.creationTimeSeconds || 0) * 1000,
          isFinal: FINAL_AT.has(atStatus)
        };

        const idx = cache.findIndex(c => c.id === String(sid));
        if (idx !== -1) {
          cache[idx] = { ...cache[idx], ...item };
        } else {
          cache.unshift(item);
        }
        cache.sort((a, b) => Number(b.id) - Number(a.id));
        GM_setValue(CACHE_KEY_AT, JSON.stringify(cache));
        GM_setValue('at-last-update', Date.now());
      }
    };
    // ==========================================

    const cfDomainPath = Number(cid) > 100000 ? 'gym' : 'contest';
    const origUrl = isCF ? `https://codeforces.com/${cfDomainPath}/${cid}/submission/${sid}` : `https://atcoder.jp/contests/${cid}/submissions/${sid}`;

    let sub = null;
    try {
      sub = isCF ? await findCF() : (isAT ? await findAT() : null);
    } catch (e) {
      if (isAT) { clearInterval(titleTimer); location.replace(origUrl); return; }
    }

    if (isCF && sub === null) { clearInterval(titleTimer); location.replace(origUrl); return; }

    // ========== 初次抓取成功直接写入缓存 ==========
    if (sub) updateCache(sub);
    // =====================================================

    const tpl = await fetchTemplate().catch(() => null);
    if (!tpl) return;

    clearInterval(titleTimer);

    const parser = new DOMParser();
    const doc = parser.parseFromString(buildHtml(tpl, sub), 'text/html');
    document.replaceChild(doc.documentElement, document.documentElement);
    document.querySelectorAll('script').forEach(oldScript => {
      const newScript = document.createElement('script');
      Array.from(oldScript.attributes).forEach(attr => newScript.setAttribute(attr.name, attr.value));
      newScript.textContent = oldScript.textContent;
      oldScript.parentNode.replaceChild(newScript, oldScript);
    });

    let currentSub = sub;

    // AtCoder 终态无详情的等待轮询状态（供500ms UI定时器读取）
    let atWaitPollingId = null;

    setInterval(() => {
      const m = document.getElementById('rmj-mask');
      if (m && (document.querySelector('#app') || document.querySelector('.lfe-body'))) m.remove();

      const hasCode = (isAT && currentSub && currentSub.sourceCode) || code;
      if (!hasCode) {
        const vals = document.querySelectorAll('.value.lfe-caption');
        if (vals.length >= 2 && vals[1].textContent !== '-') vals[1].textContent = '-';
        const ce = document.querySelector('pre code');
        if (ce) {
          const pre = ce.closest('pre');
          if (pre) pre.outerHTML = `<div class="card padding-default" style="text-align:center;color:#e74c3c;padding:40px;display:flex;flex-direction:column;align-items:center;justify-content:center;"><div>本代码非 GenGen RMJ 提交，无法查看</div><a href="${origUrl}" target="_blank" style="margin-top:8px;color:#3498db;text-decoration:none;">前往原站</a></div>`;
        }
      }

      const card = document.querySelector('.card.padding-default');
      if (card && !card.querySelector('.rmj-orig-link')) {
        const a = document.createElement('a');
        a.href = origUrl; a.target = '_blank'; a.className = 'rmj-orig-link'; a.textContent = '前往原站';
        a.style.cssText = 'display:block;text-align:center;margin-top:16px;color:#3498db;text-decoration:none;';
        card.appendChild(a);
      }

      if (currentSub && currentSub.verdict !== 'COMPILATION_ERROR') {
        const tcs = document.querySelectorAll('.test-case');
        if (currentSub.isAT) {
          tcs.forEach((tc, idx) => {
            const idEl = tc.querySelector('.id');
            const target = `#${idx + 1}`;
            if (idEl && idEl.textContent !== target) idEl.textContent = target;
          });
        } else {
          const passed = currentSub.passedTestCount ?? 0;
          const idNum = currentSub.verdict === 'OK' ? (passed > 0 ? passed : 1) : passed + 1;
          const target = `#${idNum}`;
          tcs.forEach(tc => {
            const idEl = tc.querySelector('.id');
            if (idEl && idEl.textContent !== target) idEl.textContent = target;
          });
        }
      }

      // AtCoder 终态无详情时，在 .test-case-wrap 中显示等待提示（DOM异步就绪后自动注入）
      if (atWaitPollingId !== null && !document.getElementById('rmj-at-wait-msg')) {
        const testWrap = document.querySelector('.test-case-wrap');
        if (testWrap) {
          const waitMsg = document.createElement('div');
          waitMsg.id = 'rmj-at-wait-msg';
          waitMsg.textContent = '正在等待 AtCoder 完整评测完毕';
          waitMsg.style.cssText = 'text-align:center;padding:12px;color:#666;font-size:14px;';
          testWrap.appendChild(waitMsg);
        }
      }
    }, 500);

    if ((!isCF && !isAT) || !sub) return;

    const pushToPage = (s) => window.postMessage({ __rmj_ws_push__: true, payload: buildStatusPush(s, sid) }, '*');

    if (!FINAL_CF.has(sub.verdict) && sub.verdict !== 'WAITING') {
      pushToPage(sub);
    } else if (sub.verdict === 'WAITING') {
      pushToPage(sub);
    } else {
      const fakeJudgingSub = sub.isAT
        ? { ...sub, verdict: 'TESTING', cases: sub.cases.map(c => ({...c, status: 'TESTING'})) }
        : { ...sub, verdict: 'TESTING', passedTestCount: Math.max(0, (sub.passedTestCount ?? 1) - 1) };
      pushToPage(fakeJudgingSub);
      setTimeout(() => pushToPage(sub), 600);
    }

    // AtCoder 终态无详情的5s等待轮询（可被初始状态或3s轮询中途触发）
    const startAtWaitPolling = () => {
      if (atWaitPollingId !== null || !isAT) return;
      atWaitPollingId = setInterval(async () => {
        try {
          const s = await findAT();
          if (s && s.cases.length > 0) {
            clearInterval(atWaitPollingId);
            atWaitPollingId = null;
            const msg = document.getElementById('rmj-at-wait-msg');
            if (msg) msg.remove();
            currentSub = s;
            pushToPage(s);
            updateCache(s);
          }
        } catch (e) {}
      }, 5000);
    };

    // 初始状态即满足时立即启动
    if (isAT && sub.cases.length === 0 && sub.verdict !== 'COMPILATION_ERROR' && FINAL_CF.has(sub.verdict)) {
      startAtWaitPolling();
    }

    if (!FINAL_CF.has(sub.verdict)) {
      let polling = false;
      const intervalId = setInterval(async () => {
        if (polling) return;
        polling = true;
        try {
          const s = isCF ? await findCF() : await findAT();
          if (s) {
            currentSub = s;
            pushToPage(s);
            updateCache(s);

            // 3s轮询首次拿到终态但无详情时，启动5s等待轮询
            if (FINAL_CF.has(s.verdict) && s.isAT && s.cases.length === 0 && s.verdict !== 'COMPILATION_ERROR') {
              startAtWaitPolling();
            }

            if (FINAL_CF.has(s.verdict)) clearInterval(intervalId);
          }
        } catch (e) {}
        finally { polling = false; }
      }, 3000);
    }
  })();
})();