// AI 控制台（顶级 Tab）：DeepSeek 风格聊天 + 流式输出 + 实时 MCP 步骤
let _agentBusy = false;
let _agentStream = null;      // EventSource
let _agentCfgLoaded = false;

// 后端异常文案兜底：MCP 客户端在工具服务不可达时只抛
// "Server returned an error response" 这类含糊字样，这里映射成明确指引。
function _friendlyAgentError(msg){
  const raw = String(msg || '');
  const s = raw.replace(/^[A-Za-z_]*Error:\s*/, '');   // 去掉 "RuntimeError: " 之类前缀
  if(/不可达|连接中断/.test(s)) return s;              // 后端已给出明确文案，直接用
  if(/mcp_server|server returned an error response|connecterror|connection refused|all connection attempts failed|server disconnected|network is unreachable|connect timeout/i.test(s))
    return 'MCP server(8033) 不可达：AI 无法连接设备工具服务，请确认 MCP server 已启动（本机可运行 python -m mcp_server.mcp_server）';
  return raw;
}

// ================== 初始化 ==================
let _agentDefaultSerial = '';
// 目标设备显示文案：名称优先（设备身份），没有名称退地址
let _agentTargets={};   // serial -> name
function _agentTargetText(serial){
  const nm=_agentTargets[serial];
  return nm ? (nm + ' · ' + serial) : String(serial||'');
}
function initAgentChat(){
  if(_agentCfgLoaded)return;
  _agentCfgLoaded = true;
  loadAgentConfig();
  const chat = document.getElementById('agent-chat');
  if(chat && !chat.children.length){
    chat.innerHTML = '<div class="agent-empty">👋 给 AI 下达指令，它将通过截图观察手机并执行操作。<br>'
      + '例如：「打开抖音搜索奚学东，告诉我第一个视频的标题」<br>'
      + '先选「🎯 目标设备」（AI 只操作你选定的设备），点击右上角 ⚙ 配置模型与 API Key。</div>';
  }
  bindChatScroll();
  loadLiveDevices();
  loadAgentTargetDevices();
  startRunPoll();
  renderConvList();           // 会话列表（决定当前会话）
  loadCurrentConvMessages();  // 渲染当前会话历史
  restoreRunningFlow();       // 若任务运行中：重订阅事件流
  // 输入框快捷键
  const inp = document.getElementById('agent-input');
  inp.addEventListener('keydown', ev=>{
    if(ev.key==='Enter' && !ev.shiftKey){
      ev.preventDefault();
      if(!_agentBusy) sendAgentMsg();
    }
  });
}

// ================== 页面刷新/重进恢复（运行中任务续流） ==================
// 历史轮次由 loadCurrentConvMessages 从会话渲染；这里只处理「任务仍在后台跑」：
// 重新订阅事件流（服务端队列保留积压，重连后补发 delta/step/done）。
function restoreRunningFlow(){
  apiGet('/api/agent/run').then(r=>{
    if(!r||!r.ok) return;
    // 建任务模式（designer）的运行由「AI 建任务」子页订阅。这里必须让开：
    // 服务端一个 run 只有一个事件队列，两个 EventSource 同时消费会互相瓜分事件。
    if(r.mode === 'designer') return;
    if(r.state === 'running' && r.run_id){
      setRunning(true);
      listenStream(r.run_id);
    }else if(r.state === 'error' && r.error && _currentConvId){
      // 错误提示仅当本会话相关时展示
      const chat = document.getElementById('agent-chat');
      if(chat && !chat.children.length){
        const div = newAssistantMsg();
        div.querySelector('.agent-text').textContent = '⚠ ' + _friendlyAgentError(r.error);
      }
    }
  });
}

// ================== 配置 ==================
function loadAgentConfig(){
  apiGet('/api/agent/config').then(r=>{
    if(!r||!r.ok)return;
    const tag = document.getElementById('agent-model-tag');
    if(tag && r.model) tag.textContent = r.model;
    _agentDefaultSerial = r.default_serial || '';
  });
}

// ================== 目标设备选择（AI 只操作选定设备） ==================
function loadAgentTargetDevices(){
  apiGet('/api/agent/devices').then(r=>{
    if(!r||!r.ok)return;
    const sel = document.getElementById('agent-target-select');
    if(!sel)return;
    const cur = sel.value;
    const devs = (r.devices||[]).filter(x=>x.online);
    _agentTargets = {};
    devs.forEach(d=>{ if(d.name) _agentTargets[d.serial]=d.name; });
    sel.innerHTML = '<option value="">请选择设备（AI 只操作选定设备）…</option>'
      + devs.map(d=>{
          const label = devText(d.name, d.serial) + (d.model ? ' · ' + d.model : '')
            + (d.busy ? ' ⛔ 任务中：' + d.task_job : '');
          return '<option value="'+esc(d.serial)+'"' + (d.busy ? ' disabled' : '')
            + '>' + esc(label) + '</option>';
        }).join('');
    // 保留当前选择；否则预选配置的默认设备
    if(cur && [...sel.options].some(o=>o.value===cur)) sel.value = cur;
    else if(_agentDefaultSerial && [...sel.options].some(o=>o.value===_agentDefaultSerial))
      sel.value = _agentDefaultSerial;
    const hint = document.getElementById('agent-target-hint');
    if(hint && sel.value) hint.textContent = '将操作：' + _agentTargetText(sel.value);
  });
}

// ================== 跨窗口运行状态（多人/多窗口可见并可停止） ==================
let _runPoll = null;
function startRunPoll(){
  if(_runPoll) return;
  _runPoll = setInterval(pollRunState, 8000);
}
function pollRunState(){
  if(_agentStream) return;   // 本窗口正在跑（事件流驱动），不轮询
  apiGet('/api/agent/run').then(r=>{
    if(!r||!r.ok)return;
    const running = r.state === 'running';
    // 运行槽是全平台唯一的：建任务探索在跑时，聊天页也不能再发起（如实显示）
    const tag = document.getElementById('agent-running-tag');
    tag.style.display = running ? 'inline' : 'none';
    tag.textContent = running && r.mode === 'designer' ? '● 建任务探索中' : '● 运行中';
    document.getElementById('btn-agent-stop').style.display = running ? 'inline-block' : 'none';
    const hint = document.getElementById('agent-target-hint');
    if(hint){
      const dev = r.serial ? ' · ' + _agentTargetText(r.serial) : '';
      hint.textContent = running
        ? ((r.mode === 'designer' ? '⏳ AI 正在「AI 建任务」页探索设备'
                                  : '⏳ 运行中' + (r.started ? ' ' + r.started + ' 起' : ''))
           + dev + '：' + (r.prompt || '').slice(0, 70))
        : (document.getElementById('agent-target-select').value
           ? '将操作：' + _agentTargetText(document.getElementById('agent-target-select').value)
           : '');
    }
    document.getElementById('btn-agent-send').disabled = running;
    // 运行中同步 token（本窗口没订阅事件流时也能看到进度）
    if(running && !_agentStream && r.usage && r.usage.total_tokens){
      _liveUsage = r.usage;
      updateSessionTokens();
    }
    if(!running && _agentBusy){ setRunning(false); }   // 流异常丢失时复位
  });
}
function openAgentConfig(){
  apiGet('/api/agent/config').then(r=>{
    if(!r||!r.ok)return;
    document.getElementById('acfg-base').value = r.api_base || 'https://api.deepseek.com';
    document.getElementById('acfg-model').value = r.model || '';
    document.getElementById('acfg-serial').value = r.default_serial || '';
    document.getElementById('acfg-steps').value = r.max_steps || 40;
    document.getElementById('acfg-key-hint').textContent =
      r.api_key_masked ? ('已配置 ' + r.api_key_masked) : '未配置';
    document.getElementById('acfg-key').value = '';
    document.getElementById('agent-cfg-overlay').style.display = 'flex';
  });
}
function closeAgentConfig(){
  document.getElementById('agent-cfg-overlay').style.display = 'none';
}
function saveAgentConfig(){
  const body = {
    api_base: document.getElementById('acfg-base').value.trim(),
    model: document.getElementById('acfg-model').value.trim(),
    default_serial: document.getElementById('acfg-serial').value.trim(),
    max_steps: document.getElementById('acfg-steps').value.trim(),
  };
  const key = document.getElementById('acfg-key').value.trim();
  if(key) body.api_key = key;
  apiPost('/api/agent/config', body).then(r=>{
    if(r&&r.ok){
      showToast('配置已保存','success');
      closeAgentConfig();
      loadAgentConfig();
      loadAgentTargetDevices();
    }else showToast('保存失败: ' + ((r&&r.error)||''),'error');
  });
}

// ================== 聊天渲染 ==================
function addUserMsg(text){
  const chat = document.getElementById('agent-chat');
  clearEmpty();
  const div = document.createElement('div');
  div.className = 'agent-msg user';
  div.textContent = text;
  chat.appendChild(div);
  scrollChat();
}
function newAssistantMsg(){
  const chat = document.getElementById('agent-chat');
  clearEmpty();
  const div = document.createElement('div');
  div.className = 'agent-msg assistant';
  // 结构：工具卡片 → 可折叠推理链 → 正文（Markdown）→ token 用量脚注
  div.innerHTML =
      '<div class="agent-toolcards"></div>'
    + '<details class="reasoning" style="display:none"><summary>💭 思考过程</summary>'
    +   '<div class="reasoning-text"></div></details>'
    + '<div class="agent-text"></div>'
    + '<div class="agent-usage" style="display:none"></div>';
  chat.appendChild(div);
  scrollChat();
  return div;
}

// ---------- 推理链（可折叠） ----------
function _appendReasoning(msgEl, text){
  const box = msgEl.querySelector('.reasoning');
  if(!box) return;
  const body = box.querySelector('.reasoning-text');
  body.textContent += text;
  box.querySelector('summary').textContent =
    '💭 思考过程（' + body.textContent.length + ' 字）';
  box.style.display = 'block';
  _bindReasoning(box);
  if(!box.open) box.open = true;      // 流式思考时展开，正文开始时自动收起
}
// 用户手动点过 summary 后不再自动收起/展开（尊重手动状态）
function _bindReasoning(box){
  const sum = box.querySelector('summary');
  if(sum && !sum.dataset.bound){
    sum.dataset.bound = '1';
    sum.addEventListener('click', ()=>{ box.dataset.touched = '1'; });
  }
}

// ---------- 正文 Markdown 渲染（渲染器见 markdown.js） ----------
function _renderMd(msgEl){
  const el = msgEl.querySelector('.agent-text');
  if(el) el.innerHTML = renderMarkdown(msgEl._md || '');
}
function _scheduleMd(msgEl){
  if(msgEl._mdRaf) return;            // 流式增量按帧合并渲染，避免每个 token 重排
  msgEl._mdRaf = requestAnimationFrame(()=>{
    msgEl._mdRaf = 0;
    _renderMd(msgEl);
    scrollChat();
  });
}

// ---------- token 用量 ----------
let _convUsage = {};    // 当前会话历史累计（读会话时算）
let _liveUsage = {};    // 本轮运行中累计（SSE usage 事件）
function _fmtInt(n){ return String(n || 0).replace(/\B(?=(\d{3})+(?!\d))/g, ','); }
function _usageSum(a, b){
  const o = {prompt_tokens:0, completion_tokens:0, total_tokens:0, calls:0};
  [a, b].forEach(u=>{
    if(!u) return;
    o.prompt_tokens     += (u.prompt_tokens || 0);
    o.completion_tokens += (u.completion_tokens || 0);
    o.total_tokens      += (u.total_tokens || 0);
    o.calls             += (u.calls || 0);
  });
  return o;
}
// 单条消息脚注
function renderUsage(msgEl, u){
  const el = msgEl.querySelector('.agent-usage');
  if(!el) return;
  if(!u || !u.total_tokens){ el.style.display = 'none'; return; }
  el.style.display = 'block';
  el.title = '输入 ' + _fmtInt(u.prompt_tokens) + ' + 输出 ' + _fmtInt(u.completion_tokens)
           + ' = ' + _fmtInt(u.total_tokens) + ' tokens，共 ' + (u.calls || 0) + ' 次模型调用';
  el.textContent = '🪙 ' + _fmtInt(u.total_tokens) + ' tokens'
                 + '（↑' + _fmtInt(u.prompt_tokens) + ' ↓' + _fmtInt(u.completion_tokens)
                 + ' · ' + (u.calls || 0) + ' 次调用）';
}
// 顶栏「本会话累计」= 已落库历史 + 运行中本轮
function updateSessionTokens(){
  const el = document.getElementById('agent-token-total');
  if(!el) return;
  const t = _usageSum(_convUsage, _liveUsage);
  if(!t.total_tokens){ el.textContent = ''; el.title = ''; return; }
  el.textContent = '🪙 本会话 ' + _fmtInt(t.total_tokens) + ' tokens';
  el.title = '本会话累计：输入 ' + _fmtInt(t.prompt_tokens)
           + ' + 输出 ' + _fmtInt(t.completion_tokens)
           + ' = ' + _fmtInt(t.total_tokens) + ' tokens，共 ' + t.calls + ' 次模型调用';
}
function clearEmpty(){
  const empty = document.querySelector('#agent-chat .agent-empty');
  if(empty) empty.remove();
}
let _chatPinned = true;   // 用户是否在底部（贴底才自动跟随滚动）
function scrollChat(force){
  const chat = document.getElementById('agent-chat');
  if(force || _chatPinned){
    chat.scrollTop = chat.scrollHeight;
  }
}
function bindChatScroll(){
  const chat = document.getElementById('agent-chat');
  chat.addEventListener('scroll', ()=>{
    _chatPinned = chat.scrollHeight - chat.scrollTop - chat.clientHeight < 60;
  });
}
function clearAgentChat(){
  document.getElementById('agent-chat').innerHTML = '';
  _convUsage = {};    // 换会话：token 累计重新算
  _liveUsage = {};
  updateSessionTokens();
}

// ================== 历史会话（DeepSeek 式：左侧列表，多会话持久化） ==================
let _currentConvId = localStorage.getItem('agent_conv_id') || '';
function saveConvId(id){
  _currentConvId = id || '';
  if(id) localStorage.setItem('agent_conv_id', id);
  else localStorage.removeItem('agent_conv_id');
}
function createAgentSession(){
  if(_agentBusy){showToast('运行中不能新建会话','error');return;}
  apiPost('/api/agent/conversations',{}).then(r=>{
    if(r&&r.ok){
      saveConvId(r.id);
      clearAgentChat();
      showToast('已新建会话','success');
      renderConvList();
    }else showToast('新建失败: '+((r&&r.error)||''),'error');
  });
}
function selectAgentSession(id){
  if(_agentBusy){showToast('运行中不能切换会话','error');return;}
  if(id === _currentConvId) return;
  saveConvId(id);
  clearAgentChat();
  loadCurrentConvMessages();
  renderConvList();
}
function deleteAgentSession(id){
  if(!confirm('删除该会话？历史消息将不可恢复。')) return;
  apiDelete('/api/agent/conversations/'+id).then(r=>{
    if(r&&r.ok){
      if(_currentConvId === id) saveConvId('');
      showToast('会话已删除','success');
      renderConvList();
      loadCurrentConvMessages();
    }else showToast('删除失败: '+((r&&r.error)||''),'error');
  });
}
function renderConvList(){
  apiGet('/api/agent/conversations').then(r=>{
    if(!r||!r.ok)return;
    const list = document.getElementById('agent-sess-list');
    if(!list)return;
    const convs = r.conversations || [];
    let cur = _currentConvId;
    if(!convs.some(c=>c.id===cur)) cur = convs.length ? convs[0].id : '';
    if(cur !== _currentConvId){ saveConvId(cur); clearAgentChat(); loadCurrentConvMessages(); }
    if(!convs.length){
      list.innerHTML = '<div class="agent-empty" style="padding:20px 10px;font-size:12px">'
        + '暂无历史会话<br><br>点「＋ 新建会话」开始</div>';
      return;
    }
    list.innerHTML = convs.map(c=>{
      const t = c.title || '新会话';
      const sid = String(c.id || '');
      return '<div class="agent-sess-item'+(c.id===cur?' active':'')
        +'" onclick="selectAgentSession(\''+c.id+'\')">'
        +'<button class="agent-sess-del" title="删除会话" '
        +'onclick="event.stopPropagation();deleteAgentSession(\''+c.id+'\')">✕</button>'
        +'<div class="t">'+esc(t)+'</div>'
        +'<div class="m">'+esc(c.updated_at||'')+(c.count ? ' · '+c.count+' 轮' : '')
        +' · <span style="font-family:monospace;opacity:.75" title="会话 ID：'+esc(sid)+'（点击复制）" '
        +'onclick="event.stopPropagation();copyConvId(\''+sid+'\')">#'+esc(sid.slice(0,8))+'</span>'
        +'</div></div>';
    }).join('');
  });
}
// 复制会话 ID（便于反馈问题时引用，如 conv=2ba4da0e43）
function copyConvId(id){
  const done = ()=>showToast('会话 ID 已复制: '+id,'success');
  try{
    if(navigator.clipboard && navigator.clipboard.writeText){
      navigator.clipboard.writeText(id).then(done).catch(()=>fallback());
      return;
    }
  }catch(e){}
  fallback();
  function fallback(){
    const ta=document.createElement('textarea');
    ta.value=id; document.body.appendChild(ta); ta.select();
    try{ document.execCommand('copy'); done(); }catch(e){ showToast('会话 ID: '+id,'success'); }
    ta.remove();
  }
}
function loadCurrentConvMessages(){
  const chat = document.getElementById('agent-chat');
  if(!chat) return;
  if(!_currentConvId){
    chat.innerHTML = '<div class="agent-empty">👋 点左侧「＋ 新建会话」开始，'
      + '给 AI 下达指令（先选 🎯 目标设备）。</div>';
    return;
  }
  apiGet('/api/agent/conversations/'+_currentConvId).then(r=>{
    if(!r||!r.ok)return;
    chat.innerHTML = '';
    _convUsage = {};
    _liveUsage = {};
    (r.messages||[]).forEach(m=>{
      const txt = (m.content||'').trim();
      if(m.role==='user'){ if(txt) addUserMsg(txt); return; }
      if(!txt && !m.reasoning && !(m.usage && m.usage.total_tokens)) return;
      const div = newAssistantMsg();
      if(txt){ div._md = txt; _renderMd(div); }
      if(m.reasoning){
        _appendReasoning(div, m.reasoning);
        const box = div.querySelector('.reasoning');
        _bindReasoning(box);
        box.open = false;                 // 历史消息默认折叠推理链
      }
      if(m.usage){
        renderUsage(div, m.usage);
        _convUsage = _usageSum(_convUsage, m.usage);
      }
    });
    updateSessionTokens();
    if(!chat.children.length){
      chat.innerHTML = '<div class="agent-empty">新会话。给 AI 下达指令'
        + '（先选 🎯 目标设备）…</div>';
    }
  });
}

// ================== 发送与流式接收 ==================
function setRunning(on){
  _agentBusy = on;
  document.getElementById('agent-running-tag').style.display = on ? 'inline' : 'none';
  document.getElementById('btn-agent-stop').style.display = on ? 'inline-block' : 'none';
  document.getElementById('btn-agent-send').disabled = on;
}
function stopAgent(){
  if(!confirm('确定停止当前 AI 运行任务？\n（其他人发起的任务也会被停止）')) return;
  apiPost('/api/agent/stop',{}).then(r=>{
    if(r&&r.ok) showToast('已请求停止，正在中断…','success');
    else showToast((r&&r.error)||'停止失败','error');
  });
}
function sendAgentMsg(){
  if(_agentBusy){showToast('上一轮还在运行','error');return;}
  const sel = document.getElementById('agent-target-select');
  const serial = sel ? sel.value : '';
  if(!serial){
    showToast('请先选择目标设备（AI 只操作你选定的设备；任务中的设备不可选）','error');
    if(sel) sel.focus();
    return;
  }
  const inp = document.getElementById('agent-input');
  const text = inp.value.trim();
  if(!text){showToast('请输入指令','error');return;}
  inp.value = '';
  addUserMsg(text);

  // 会话：无当前会话时自动新建（DeepSeek 式：消息总归属于一个会话）
  const doRun = (convId)=>{
    apiPost('/api/agent/run', {prompt: text, serial: serial,
                               conversation_id: convId}).then(r=>{
      if(!r||!r.ok){
        const msg = r ? (r.error||'启动失败') : '请求失败';
        const div = newAssistantMsg();
        div.querySelector('.agent-text').textContent = '⚠ ' + _friendlyAgentError(msg);
        showToast(_friendlyAgentError(msg),'error');
        return;
      }
      setRunning(true);
      listenStream(r.run_id);
    });
  };
  if(_currentConvId){
    doRun(_currentConvId);
  }else{
    apiPost('/api/agent/conversations',{}).then(r=>{
      if(r&&r.ok){
        saveConvId(r.id);
        renderConvList();
        doRun(r.id);
      }else{
        const div = newAssistantMsg();
        div.querySelector('.agent-text').textContent = '⚠ 新建会话失败';
        showToast('新建会话失败','error');
      }
    });
  }
}

function listenStream(runId){
  if(_agentStream) _agentStream.close();
  const es = new EventSource('/api/agent/stream?run_id=' + runId);
  _agentStream = es;
  let msgEl = null;

  es.addEventListener('delta', ev=>{
    if(!msgEl) msgEl = newAssistantMsg();
    const d = JSON.parse(ev.data);
    if(d.kind === 'reasoning'){
      _appendReasoning(msgEl, d.text || '');
    }else{
      // 正文开始 → 收起推理链（用户手动开过的保持原样）
      const r = msgEl.querySelector('.reasoning');
      if(r && r.open && !r.dataset.touched) r.open = false;
      msgEl._md = (msgEl._md || '') + (d.text || '');
      msgEl._mdPending = false;
      _scheduleMd(msgEl);
    }
    scrollChat();
  });

  // 每次模型调用完成 → 实时刷新 token 计数（本轮累计）
  es.addEventListener('usage', ev=>{
    if(!msgEl) msgEl = newAssistantMsg();
    let d = {};
    try{ d = JSON.parse(ev.data) || {}; }catch(e){}
    _liveUsage = d;
    renderUsage(msgEl, d);
    updateSessionTokens();
  });

  es.addEventListener('step', ev=>{
    const d = JSON.parse(ev.data);
    followSerialFromArgs(d.args);
    if(!msgEl) msgEl = newAssistantMsg();
    const cards = msgEl.querySelector('.agent-toolcards');
    const card = document.createElement('div');
    card.className = 'agent-toolcard';
    const argsTxt = typeof d.args === 'string' ? d.args
                    : JSON.stringify(d.args || {});
    card.innerHTML = '<span class="dot"></span>'
      + '<code style="color:var(--teal)">' + esc(d.tool||'') + '</code>'
      + '<span class="text-muted">' + esc(argsTxt) + '</span>';
    if(d.image){
      const img = document.createElement('img');
      img.src = 'data:image/jpeg;base64,' + d.image;
      card.appendChild(img);
    }
    cards.appendChild(card);
    scrollChat();
  });

  es.addEventListener('done', ev=>{
    const d = JSON.parse(ev.data);
    if(d.answer || d.usage || !msgEl){
      if(!msgEl) msgEl = newAssistantMsg();
      if(d.answer){ msgEl._md = d.answer; _renderMd(msgEl); }
      if(d.usage) renderUsage(msgEl, d.usage);
    }
    // 本轮用量并入会话累计（脚注已展示，顶栏不该因此变小），再清空「运行中」
    _convUsage = _usageSum(_convUsage, _liveUsage);
    _liveUsage = {};
    updateSessionTokens();
    scrollChat();
    endRun();
    renderConvList();   // 落库已完成：刷新标题/时间/轮数
  });

  es.addEventListener('error', ev=>{
    let msg = '连接中断';
    try{
      if(ev.data) msg = JSON.parse(ev.data).message || msg;
    }catch(e){}
    if(!msgEl) msgEl = newAssistantMsg();
    msgEl.querySelector('.agent-text').textContent = '⚠ ' + _friendlyAgentError(msg);
    _liveUsage = {};            // 本轮可能已花费 token，但结果无效——不并入会话累计
    endRun();
  });

  es.onerror = ()=>{
    // 重要：不能在这里 endRun()——断网/后台标签页节流/服务端瞬时抖动都会触发
    // onerror，但后端任务仍在跑。EventSource 会自动重连，服务端事件队列保留
    // 积压（delta/step/done），重连成功后全部补发，界面无缝续上。
    // 只有连接彻底关闭（非自动重连态）且任务还在跑时才提示。
    if(_agentBusy && es.readyState === EventSource.CLOSED){
      const hint = document.getElementById('agent-target-hint');
      if(hint) hint.textContent = '⚠ 实时连接已中断，任务仍在后台运行——可刷新页面恢复查看';
      // 连接彻底失败时周期探测，恢复后重订阅
      setTimeout(()=>{
        if(!_agentStream && _agentBusy){
          apiGet('/api/agent/run').then(r=>{
            // 建任务模式（designer）归「AI 建任务」子页订阅，这里同样要让开
            if(r&&r.ok&&r.state==='running'&&r.run_id&&r.mode!=='designer')
              listenStream(r.run_id);
          });
        }
      }, 5000);
    }
  };
}

// ============ 实时画面（右侧，MJPEG 流） ============
let _liveSerial = '';
function showLive(serial){
  if(!serial || serial === _liveSerial) return;
  _liveSerial = serial;
  const img = document.getElementById('agent-live-img');
  img.src = '/api/screen/stream?serial=' + encodeURIComponent(serial) + '&q=80&fps=8&t=' + Date.now();
  img.style.display = 'block';
  document.getElementById('agent-live-empty').style.display = 'none';
  document.getElementById('agent-live-serial').textContent = serial;
  const sel = document.getElementById('agent-live-select');
  if(sel) sel.value = serial;
}
function stopLive(){
  _liveSerial = '';
  const img = document.getElementById('agent-live-img');
  img.src = '';
  img.style.display = 'none';
  document.getElementById('agent-live-empty').style.display = 'block';
  document.getElementById('agent-live-serial').textContent = '';
}
function followSerialFromArgs(args){
  // 工具 args（后端 SSE 已序列化为对象；兼容历史字符串格式）
  let a = args;
  if(typeof args === 'string'){
    try{ a = JSON.parse(args); }catch(e){ return; }
  }
  if(a && a.serial) showLive(a.serial);
}
function watchDevice(serial){
  if(!serial){ stopLive(); return; }
  showLive(serial);
}
function loadLiveDevices(){
  apiGet('/api/devices').then(r=>{
    if(!r||!r.ok)return;
    const sel = document.getElementById('agent-live-select');
    if(!sel)return;
    const cur = sel.value;
    // items 带设备名称（设备身份）；老接口只有 serial 列表时兜底
    const items = (r.items && r.items.length ? r.items
                   : (r.devices||[]).map(x=>({serial:x, name:''})))
                  .filter(x=>String(x.serial||'').indexOf(':')>=0);
    sel.innerHTML = '<option value="">选择设备观看…</option>'
      + items.map(x=>'<option value="'+esc(x.serial)+'"'+(x.serial===cur?' selected':'')+'>'
                     +esc(devText(x.name, x.serial))+'</option>').join('');
  });
}

// 截图点击放大查看
function zoomScreenshot(img){
  const ov = document.getElementById('agent-zoom');
  if(!ov){
    const d = document.createElement('div');
    d.id = 'agent-zoom';
    d.style.cssText = 'display:none;position:fixed;inset:0;background:rgba(0,0,0,.8);z-index:1400;align-items:center;justify-content:center;cursor:zoom-out';
    d.onclick = ()=>d.style.display='none';
    document.body.appendChild(d);
  }
  const ovEl = document.getElementById('agent-zoom');
  ovEl.innerHTML = '';
  const big = document.createElement('img');
  big.src = img.src;
  big.style.cssText = 'max-width:88vw;max-height:88vh;border-radius:8px';
  ovEl.appendChild(big);
  ovEl.style.display = 'flex';
}
// 截图 img 绑定点击放大
document.addEventListener('click', ev=>{
  const t = ev.target;
  if(t && t.tagName==='IMG' && t.closest('.agent-toolcard') && !t.closest('#agent-zoom')){
    zoomScreenshot(t);
  }
});

function endRun(){
  setRunning(false);
  _agentStream && _agentStream.close();
  _agentStream = null;
  scrollChat();
}

// ================== 动作库（可复用动作：查看/编辑/删除/新建） ==================
let _actCache = [];
function openActLib(){
  document.getElementById('agent-act-overlay').style.display = 'flex';
  loadActLib();
}
function closeActLib(){
  document.getElementById('agent-act-overlay').style.display = 'none';
}
function _actStepBrief(a){
  return (a.steps||[]).map(s=>{
    const p = s.params || {};
    const loc = p.selector_value || p.package || p.fixed_text || '';
    return (s.type || '?') + (loc ? (':' + loc) : '');
  }).join(' → ');
}
function loadActLib(){
  const list = document.getElementById('act-lib-list');
  apiGet('/api/agent/actions').then(r=>{
    if(!r||!r.ok){ showToast((r&&r.error)||'加载失败','error'); return; }
    _actCache = r.actions || [];
    document.getElementById('act-lib-hint').textContent = '共 ' + _actCache.length + ' 个动作';
    if(!_actCache.length){
      list.innerHTML = '<div class="text-muted" style="padding:20px;text-align:center">暂无动作——跑一轮以元素/文字点击为主的任务后会自动沉淀</div>';
      return;
    }
    list.innerHTML = '';
    _actCache.forEach(a=>{
      const card = document.createElement('div');
      card.style.cssText = 'border:1px solid var(--card-line);border-radius:10px;padding:9px 13px;background:#0d1117';
      card.innerHTML = '<div style="display:flex;justify-content:space-between;gap:10px;align-items:flex-start">'
        + '<div style="flex:1;min-width:0">'
        +   '<div style="font-weight:600">' + esc(a.name||'')
        +     (a.app ? '<span class="text-muted" style="font-size:11px;font-weight:400;margin-left:6px">' + esc(a.app) + '</span>' : '')
        +   '</div>'
        +   '<div style="font-size:11.5px;color:#9fb3d1;margin-top:2px;word-break:break-all">' + esc(_actStepBrief(a) || '—') + '</div>'
        +   '<div class="text-muted" style="font-size:11px;margin-top:2px">别名: ' + esc((a.aliases||[]).join('、')||'—')
        +     ' ｜ 命中 ' + (a.hits||0) + ' 次 ｜ ' + esc(a.updated_at||'') + '</div>'
        + '</div>'
        + '<div style="display:flex;flex-direction:column;gap:4px;flex:none">'
        +   '<button class="btn btn-xs" onclick="actEdit(' + a.id + ')">编辑</button>'
        +   '<button class="btn btn-xs btn-danger" onclick="actDelete(' + a.id + ')">删除</button>'
        + '</div></div>';
      list.appendChild(card);
    });
  });
}
function actDelete(id){
  if(!confirm('确认删除该动作？删除后同类任务不再自动复用它。')) return;
  apiPost('/api/agent/actions/delete',{id:id}).then(r=>{
    showToast((r&&(r.msg||r.error))||'删除失败', (r&&r.ok)?'success':'error');
    loadActLib();
  });
}
function actNew(){ _actForm({name:'', app:'', aliases:[], params:[], steps:[]}); }
function actEdit(id){
  const a = _actCache.find(x=>x.id===id);
  if(a) _actForm(a);
}
function _actForm(a){
  const list = document.getElementById('act-lib-list');
  const isNew = !a.id;
  list.innerHTML = '';
  const box = document.createElement('div');
  box.style.cssText = 'border:1px solid var(--card-line);border-radius:10px;padding:12px 14px;background:#0d1117';
  box.innerHTML =
      '<div style="font-weight:600;margin-bottom:8px">' + (isNew?'新建动作':'编辑动作 #'+a.id) + '</div>'
    + '<div style="display:flex;gap:8px;flex-wrap:wrap;margin-bottom:6px">'
    +   '<input id="act-f-name" class="form-control" style="flex:1;min-width:180px" placeholder="动作名（如 打开抖音）" value="' + esc(a.name||'') + '">'
    +   '<input id="act-f-app" class="form-control" style="flex:1;min-width:180px" placeholder="包名（可空，如 com.ss.android.ugc.aweme）" value="' + esc(a.app||'') + '">'
    + '</div>'
    + '<div style="display:flex;gap:8px;flex-wrap:wrap;margin-bottom:6px">'
    +   '<input id="act-f-alias" class="form-control" style="flex:1;min-width:180px" placeholder="别名（逗号分隔）" value="' + esc((a.aliases||[]).join(',')) + '">'
    +   '<input id="act-f-params" class="form-control" style="flex:1;min-width:180px" placeholder="参数名（逗号分隔，可空）" value="' + esc((a.params||[]).join(',')) + '">'
    + '</div>'
    + '<textarea id="act-f-steps" class="form-control" rows="9" style="font-family:monospace;font-size:12px" '
    +   'placeholder=\'步骤 JSON 数组，例：[{"type":"click","params":{"selector_type":"text","selector_value":"搜索"}}]\'>'
    +   esc(JSON.stringify(a.steps||[], null, 2)) + '</textarea>'
    + '<div class="text-muted" style="font-size:11px;margin:6px 0">可用 type：open_app/click/input_text/swipe/wait/key_event/group…；click 必须有 selector_value（xpath/text/resourceId/description…）；<b>不接受坐标(click_xy)</b>。</div>'
    + '<div style="display:flex;gap:8px"><button class="btn btn-primary btn-sm" onclick="actSave(' + (a.id||0) + ')">保存</button>'
    + '<button class="btn btn-sm" onclick="loadActLib()">取消</button></div>';
  list.appendChild(box);
}
function actSave(id){
  const g = (i)=>document.getElementById(i).value;
  const split = (s)=>String(s||'').split(/[,，]/).map(x=>x.trim()).filter(x=>x);
  let steps;
  try{ steps = JSON.parse(g('act-f-steps')||'[]'); }
  catch(e){ showToast('steps 不是合法 JSON: '+e.message,'error'); return; }
  apiPost('/api/agent/actions/save', {
    id: id||0, name: g('act-f-name'), app: g('act-f-app'),
    aliases: split(g('act-f-alias')), params: split(g('act-f-params')), steps: steps
  }).then(r=>{
    if(!r||!r.ok){ showToast((r&&r.error)||'保存失败','error'); return; }
    showToast(r.msg||'已保存','success');
    loadActLib();
  });
}

// ================== 经验库（自进化记忆管理） ==================
function openExpLib(){
  document.getElementById('agent-exp-overlay').style.display = 'flex';
  loadExpLib();
}
function closeExpLib(){
  document.getElementById('agent-exp-overlay').style.display = 'none';
}
function loadExpLib(){
  const list = document.getElementById('exp-lib-list');
  apiGet('/api/agent/experience').then(r=>{
    if(!r||!r.ok){ showToast((r&&r.error)||'加载失败','error'); return; }
    document.getElementById('exp-lib-last').textContent =
      (r.last ? ('最近巡检 ' + r.last + '：' + (r.last_summary||'')) : '');
    if(r.running){
      list.innerHTML = '<div class="text-muted" style="padding:20px;text-align:center">🔍 AI 巡检进行中（约 1 分钟），完成后请刷新…</div>';
      return;
    }
    const exps = r.experiences||[];
    if(!exps.length){
      list.innerHTML = '<div class="text-muted" style="padding:20px;text-align:center">暂无经验——跑一轮带手机操作的任务后会自动沉淀</div>';
      return;
    }
    list.innerHTML = '';
    exps.forEach(e=>{
      const a = e.audit||{};
      const card = document.createElement('div');
      card.style.cssText = 'border:1px solid var(--card-line);border-radius:10px;padding:9px 13px;background:#0d1117';
      // 徽章
      let badge = '';
      if(a.action === 'pending' && a.verdict === 'delete'){
        badge = '<span style="background:#7f1d1d;color:#fecaca;font-size:10.5px;padding:1px 8px;border-radius:9px;margin-left:8px">⚠ 建议删除</span>';
      }else if(a.action === 'kept'){
        badge = '<span style="background:#0f3d2e;color:#a7f3d0;font-size:10.5px;padding:1px 8px;border-radius:9px;margin-left:8px">' +
                (a.verdict === 'delete' ? '已人工保留' : '✓ 已保留') + '</span>';
      }
      let actBtns = '';
      if(a.action === 'pending'){
        actBtns = '<button class="btn btn-xs btn-danger" onclick="expDelete(' + e.id + ')">确认删除</button>'
                + '<button class="btn btn-xs" onclick="expKeep(' + e.id + ')">保留</button>';
      }else{
        actBtns = '<button class="btn btn-xs" style="border-color:#7f1d1d;color:#f87171" onclick="expDelete(' + e.id + ')" title="强制删除此经验">删除</button>';
      }
      card.innerHTML =
        '<div style="display:flex;align-items:center;gap:6px;font-size:12px">'
        + '<span class="text-muted" style="font-family:var(--mono)">#' + e.id + '</span>'
        + '<span class="text-muted">' + esc(e.created_at||'') + '</span>'
        + '<span class="text-muted">引用 ' + (e.hits||0) + ' 次</span>' + badge
        + '<span style="flex:1"></span>' + actBtns + '</div>'
        + '<div style="font-size:13px;color:#e5e7eb;margin:5px 0 3px">' + esc(e.task_prompt) + '</div>'
        + '<div class="text-muted" style="font-size:11.5px;line-height:1.6;white-space:pre-wrap">' + esc((e.recipe||'').slice(0,220)) + '</div>'
        + (a.action === 'pending' && a.reason
           ? '<div style="font-size:11.5px;color:#fbbf24;margin-top:5px">AI 建议理由：' + esc(a.reason)
             + (a.score ? '（评分 ' + a.score + '/10）' : '') + '</div>'
           : '');
      list.appendChild(card);
    });
  });
}
function triggerExpAudit(){
  apiPost('/api/agent/experience/audit',{}).then(r=>{
    if(r&&r.ok){
      showToast('巡检已启动，约 1 分钟完成','success');
      document.getElementById('exp-lib-list').innerHTML =
        '<div class="text-muted" style="padding:20px;text-align:center">🔍 AI 巡检进行中…</div>';
      // 完成后自动刷新
      setTimeout(()=>{ if(document.getElementById('agent-exp-overlay').style.display==='flex') loadExpLib(); }, 90000);
    }else showToast((r&&r.error)||'巡检启动失败','error');
  });
}
function expDelete(id){
  if(!confirm('确认删除该经验？删除后不可恢复（下次相似任务不再自动参考）。')) return;
  apiPost('/api/agent/experience/delete',{id:id}).then(r=>{
    if(r&&r.ok){ showToast('已删除','success'); loadExpLib(); }
    else showToast((r&&r.error)||'删除失败','error');
  });
}
function expKeep(id){
  apiPost('/api/agent/experience/keep',{id:id}).then(r=>{
    if(r&&r.ok){ showToast('已保留，后续不再重复建议','success'); loadExpLib(); }
    else showToast((r&&r.error)||'操作失败','error');
  });
}