// 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 ==================
async function loadLogs(){
  const file=document.getElementById('log-file').value;
  const lines=document.getElementById('log-lines').value;
  const r=await apiGet('/api/logs?file='+encodeURIComponent(file)+'&lines='+lines);
  if(!r||!r.ok)return;
  const content=r.content||'';
  // 简单着色
  const colored=esc(content)
    .replace(/\[ERROR\]/g,'<span class="log-err">[ERROR]</span>')
    .replace(/\[WARNING\]/g,'<span class="log-warn">[WARNING]</span>')
    .replace(/\[INFO\]/g,'<span class="log-info">[INFO]</span>');
  document.getElementById('log-content').innerHTML=colored||'<span class="text-muted">（空）</span>';
  document.getElementById('log-hint').textContent=file+' · '+content.split('\n').length+' 行';
  // 自动滚动到底部
  const el=document.getElementById('log-content');
  el.scrollTop=el.scrollHeight;
}

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');