// 管理 Tab：分组/日志/用户
// ================== Tab 3: 分组 ==================
async function loadGroups(){
  const r=await apiGet('/api/groups');if(!r)return;
  _groupsList=r.groups||[];
  const dr=await apiGet('/api/devices');
  // items 带名称（设备身份）；老接口只有 serial 列表时兜底成对象
  _devicesList=(dr&&dr.items)?dr.items
    :((dr&&dr.devices)||[]).map(s=>({serial:s,name:'',model:''}));
  renderGroupTable();
}

function renderGroupTable(){
  const groups=_groupsList||[];
  setListPager('groups',{
    data:()=>groups,
    filter:(g,kw)=>((g.name||'').toLowerCase().includes(kw)||(g.description||'').toLowerCase().includes(kw)||(g.serials||[]).join(' ').toLowerCase().includes(kw)),
    sortValue:(g,k)=>{ if(k==='count')return (g.serials||[]).length; return g[k]||''; },
    render:renderGroupRow,
    tbody:'tb-groups',pager:'pager-groups',pageSize:10,
    empty:'<tr><td colspan="5" class="empty">暂无分组，点击"新建分组"创建</td></tr>'
  });
  applyListPager('groups');
  initListSearch('groups','search-groups');
}
function renderGroupRow(g){
  const serials=g.serials||[];
  return '<tr>'+
    '<td><strong>'+esc(g.name)+'</strong></td>'+
    '<td>'+esc(g.description||'-')+'</td>'+
    '<td>'+serials.length+'</td>'+
    '<td class="text-muted" style="max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap">'+(serials.length?serials.map(esc).join(', '):'-')+'</td>'+
    '<td>'+
      (_can('tasks')?(
        '<button class="btn btn-xs" onclick="openGroupModal(\''+esc(g.name)+'\')">编辑</button>'+
        '<button class="btn btn-danger btn-xs" onclick="deleteGroup(\''+esc(g.name)+'\')">删除</button>'
      ):'<span class="text-muted">只读</span>')+
    '</td>'+
  '</tr>';
}

function openGroupModal(name){
  const group=name?(_groupsList||[]).find(g=>g.name===name):null;
  const isEdit=!!group;
  document.getElementById('modal-title').textContent=isEdit?'编辑分组':'新建分组';
  const g=group||{name:'',description:'',serials:[]};
  const current= new Set(g.serials||[]);
  const nameOf={};
  (_devicesList||[]).forEach(x=>{ if(x&&x.serial) nameOf[x.serial]=x.name||''; });
  const allSerials=[...new Set([...(_devicesList||[]).map(x=>x.serial||x), ...(g.serials||[])])].sort();
  const deviceCheckboxes=allSerials.map(s=>
    '<label><input type="checkbox" value="'+esc(s)+'" '+(current.has(s)?'checked':'')+'>'
      +esc(nameOf[s]?devText(nameOf[s], s):s)+'</label>'
  ).join('');

  document.getElementById('modal-body').innerHTML=
    '<div class="form-group"><label>分组名</label><input type="text" class="form-control" id="g-name" value="'+esc(g.name)+'" placeholder="如：测试组" '+(isEdit?'readonly':'')+'></div>'+
    '<div class="form-group"><label>描述</label><input type="text" class="form-control" id="g-description" value="'+esc(g.description||'')+'" placeholder="可选"></div>'+
    '<div class="form-group"><label>设备列表（勾选属于此分组的设备）</label>'+
      '<div class="device-list">'+(deviceCheckboxes||'<div class="text-muted">暂无在线设备</div>')+'</div>'+
      '<div class="help">仅显示当前在线设备，已选设备即使离线也会保留</div>'+
    '</div>';

  document.getElementById('modal-footer').innerHTML=
    '<button class="btn" onclick="closeModal()">取消</button>'+
    '<button class="btn btn-primary" onclick="saveGroup('+(isEdit?'\''+esc(g.name)+'\'':'null')+')">'+(isEdit?'保存':'创建')+'</button>';

  showModal();
}

async function saveGroup(name){
  const newName=document.getElementById('g-name').value.trim();
  if(!newName){showToast('分组名不能为空','error');return;}
  const desc=document.getElementById('g-description').value;
  const serials=Array.from(document.querySelectorAll('.device-list input:checked')).map(c=>c.value);
  const data={name:newName,description:desc,serials:serials};

  if(name){
    const r=await apiPut('/api/groups/'+encodeURIComponent(name),data);
    handleResult(r,()=>{closeModal();loadGroups();});
  }else{
    const r=await apiPost('/api/groups',data);
    handleResult(r,()=>{closeModal();loadGroups();});
  }
}

async function deleteGroup(name){
  if(!confirm('确认删除分组"'+name+'"吗？'))return;
  const r=await apiDelete('/api/groups/'+encodeURIComponent(name));
  handleResult(r,()=>loadGroups());
}

// ================== Tab 4: 日志 ==================
// 条件（文件/关键字/级别/时间）→ /api/logs（结构化行）；下载走 /api/logs/download
function _logParams(){
  const v=id=>document.getElementById(id);
  const p=new URLSearchParams();
  p.set('file', v('log-file').value||'');
  p.set('lines', v('log-lines').value);
  const q=v('log-q').value.trim();       if(q)p.set('q',q);
  const lv=v('log-level').value;         if(lv)p.set('level',lv);
  const since=v('log-since').value;      if(since)p.set('since',since);
  const until=v('log-until').value;      if(until)p.set('until',until);
  return p;
}

// 文件下拉由接口返回的清单渲染（写死的选项会漏掉新增模块，如 notify.log）
function _renderLogFiles(files,current){
  const sel=document.getElementById('log-file');
  const sig=(files||[]).map(f=>f.name).join(',');
  if(sel.dataset.sig!==sig){        // 只在清单变化时重建，避免打断当前选择
    sel.dataset.sig=sig;
    sel.innerHTML=(files||[]).map(f=>
      '<option value="'+esc(f.name)+'">'+esc(f.label)+'</option>').join('');
  }
  if(current)sel.value=current;
}

async function loadLogs(){
  const el=document.getElementById('log-content');
  if(!el)return;
  // 用户正往上翻看历史时不要被自动刷新拽回底部
  const atBottom=el.scrollHeight-el.scrollTop-el.clientHeight<40;
  const r=await apiGet('/api/logs?'+_logParams().toString());
  if(!r)return;
  _renderLogFiles(r.files,r.file);
  const hint=document.getElementById('log-hint');
  if(!r.ok){
    el.innerHTML='<span class="text-muted">'+esc(r.error||'读取失败')+'</span>';
    hint.textContent='';
    return;
  }
  const rows=r.rows||[], kw=document.getElementById('log-q').value.trim();
  el.innerHTML=rows.length
    ? rows.map(row=>_logRowHtml(row,kw)).join('')
    : '<span class="text-muted">（无匹配行）</span>';
  let text=r.file+' · 命中 '+r.matched+' 行'
    +(rows.length<r.matched?'（显示最近 '+rows.length+' 行）':'')
    +' · 已扫描 '+r.scanned+' 行';
  if(r.truncated)text+=' · 更早的命中已省略：缩小时间范围或加关键字';
  hint.textContent=text;
  if(atBottom)el.scrollTop=el.scrollHeight;
}

function _logRowHtml(r,kw){
  const lvl=(r.level||'').toUpperCase();
  const cls=lvl==='ERROR'||lvl==='CRITICAL'?'log-err'
           :lvl==='WARNING'?'log-warn':'log-info';
  // 续行（traceback 缩进行）没有前缀，只缩进显示消息体
  const head=r.cont?'':esc(r.ts)+' <span class="'+cls+'">['+esc(lvl)+']</span> ['
                    +esc(r.module)+'] ';
  return '<div class="log-row'+(r.cont?' log-cont':'')+'">'+head+_logHl(r.msg,kw)+'</div>';
}

// 关键字高亮：**先转义再匹配**——反过来的话消息里的 < > 会先被吃成实体
function _logHl(text,kw){
  const safe=esc(text||'');
  if(!kw)return safe;
  const k=esc(kw);
  if(!k)return safe;
  const re=new RegExp(k.replace(/[.*+?^${}()|[\]\\]/g,'\\$&'),'gi');
  return safe.replace(re,m=>'<span class="log-hit">'+m+'</span>');
}

function downloadLogs(){
  window.location='/api/logs/download?'+_logParams().toString();
}

function resetLogFilters(){
  ['log-q','log-since','log-until'].forEach(id=>{document.getElementById(id).value='';});
  document.getElementById('log-level').value='';
  loadLogs();
}

function toggleLogAuto(){
  if(_logTimer){clearInterval(_logTimer);_logTimer=null;}
  if(document.getElementById('log-auto').checked && _activeTab==='logs'){
    _logTimer=setInterval(loadLogs,3000);
  }
}

// ================== Tab 5: 用户 ==================
async function loadUsers(){
  const r=await apiGet('/api/users');if(!r)return;
  const users=r.users||[];
  setListPager('users',{
    data:()=>users,
    filter:(u,kw)=>(u.username||'').toLowerCase().includes(kw),
    sortValue:(u,k)=>{ if(k==='is_admin')return u.is_admin?1:0; return u[k]||''; },
    render:renderUserRow,
    tbody:'tb-users',pager:'pager-users',pageSize:10,
    empty:'<tr><td colspan="5" class="empty">暂无用户</td></tr>'
  });
  applyListPager('users');
  initListSearch('users','search-users');
}
function renderUserRow(u){
  const admin=u.is_admin?'<span class="label label-primary">管理员</span>':'<span class="label label-default">普通</span>';
  const perms=(u.perms||[]).map(p=>'<span class="label label-info">'+(PERM_LABELS[p]||p)+'</span>').join(' ')
    ||'<span class="text-muted">-</span>';
  return '<tr>'+
    '<td>'+u.id+'</td>'+
    '<td><strong>'+esc(u.username)+'</strong></td>'+
    '<td>'+admin+'</td>'+
    '<td>'+perms+'</td>'+
    '<td>'+
      '<button class="btn btn-xs" onclick="openUserModal('+u.id+')">编辑</button>'+
      (u.username==='admin'?'':'<button class="btn btn-danger btn-xs" onclick="deleteUser('+u.id+')">删除</button>')+
    '</td>'+
  '</tr>';
}

function togglePermBoxes(){
  // 勾选"管理员权限"时：权限位全选并禁用（管理员拥有全部权限）
  const isAdmin=document.getElementById('u-is_admin').checked;
  document.querySelectorAll('.u-perm').forEach(cb=>{
    cb.disabled=isAdmin;
    if(isAdmin)cb.checked=true;
  });
}

function openUserModal(uid){
  const isEdit=!!uid;
  document.getElementById('modal-title').textContent=isEdit?'编辑用户':'新建用户';
  const permBoxes=Object.keys(PERM_LABELS).map(p=>
    '<label style="margin-right:12px"><input type="checkbox" class="u-perm" value="'+p+'">'+PERM_LABELS[p]+'</label>'
  ).join('');
  document.getElementById('modal-body').innerHTML=
    '<div class="form-group"><label>用户名</label><input type="text" class="form-control" id="u-username" '+(isEdit?'disabled':'')+' placeholder="用户名"></div>'+
    '<div class="form-group"><label>密码'+(isEdit?'（留空不修改）':'')+'</label><input type="password" class="form-control" id="u-password" placeholder="密码"></div>'+
    '<div class="form-group form-check"><input type="checkbox" id="u-is_admin" onchange="togglePermBoxes()" checked><label for="u-is_admin">管理员权限（拥有全部权限）</label></div>'+
    '<div class="form-group"><label>业务权限（管理员自动拥有全部，无需勾选）</label>'+
      '<div>'+permBoxes+'</div>'+
      '<div class="help">任务管理=任务/自定义动作/分组；设备控制=停止/释放/清异常/扫描/抓元素；应用管理=APK上传安装；日志查看=日志页</div>'+
    '</div>';

  document.getElementById('modal-footer').innerHTML=
    '<button class="btn" onclick="closeModal()">取消</button>'+
    '<button class="btn btn-primary" onclick="saveUser('+(uid||'null')+')">'+(isEdit?'保存':'创建')+'</button>';

  if(isEdit){
    // 预填充（从表格数据获取）
    apiGet('/api/users').then(r=>{
      const u=(r&&r.users||[]).find(x=>x.id===uid);
      if(u){
        document.getElementById('u-username').value=u.username;
        document.getElementById('u-is_admin').checked=u.is_admin;
        document.querySelectorAll('.u-perm').forEach(cb=>{
          cb.checked=(u.perms||[]).includes(cb.value);
        });
        togglePermBoxes();
      }
    });
  }else{
    togglePermBoxes();
  }
  showModal();
}

async function saveUser(uid){
  const username=document.getElementById('u-username').value.trim();
  const password=document.getElementById('u-password').value;
  const is_admin=document.getElementById('u-is_admin').checked;
  const perms=[...document.querySelectorAll('.u-perm:checked')].map(cb=>cb.value);

  if(uid){
    const data={is_admin:is_admin,perms:perms};
    if(password)data.password=password;
    const r=await apiPut('/api/users/'+uid,data);
    handleResult(r,()=>{closeModal();loadUsers();});
  }else{
    if(!username||!password){showToast('用户名和密码不能为空','error');return;}
    const r=await apiPost('/api/users',{username:username,password:password,is_admin:is_admin,perms:perms});
    handleResult(r,()=>{closeModal();loadUsers();});
  }
}

async function deleteUser(uid){
  if(!confirm('确认删除此用户吗？'))return;
  const r=await apiDelete('/api/users/'+uid);
  handleResult(r,()=>loadUsers());
}


// ================== 初始化 ==================
initCsrf();   // 获取 CSRF token（非 GET 请求需携带）
loadMe();     // 获取当前用户权限，隐藏无权限的功能入口
showTab('monitor');