const UsersPage = {
  async render() { return '<div class="loading"><i class="fas fa-spinner"></i></div>'; },

  async mount() {
    document.getElementById('page-title').textContent = '用户管理';
    document.getElementById('page-actions').innerHTML = '<button class="btn btn-p btn-sm" data-action="UsersPage:createUser"><i class="fas fa-user-plus"></i> 添加用户</button>';
    await this.load();
  },

  async load() {
    const ct = document.getElementById('page-content');
    try {
      const users = await API.get('/users');
      const srcLabel = { netease:'网易', skin:'皮肤站' };
      ct.innerHTML = `
        <div class="card table-wrap"><table><thead><tr>
          <th>#</th><th>用户名</th><th>邮箱</th><th>游戏名</th><th>游戏UID</th><th>来源</th><th>角色</th><th>状态</th><th>时间</th><th>操作</th>
        </tr></thead><tbody>${users.map(u => `
          <tr>
            <td>${u.id}</td><td>${U.esc(u.username)}</td><td>${U.esc(u.email)}</td>
            <td>${U.esc(u.game_name)}</td><td>${U.esc(u.game_uid)}</td>
            <td>${srcLabel[u.source] || u.source || '网易'}</td>
            <td>${U.badge(u.role,'role')}</td>
            <td>${u.active ? '<span class="badge bg-resolved">启用</span>' : '<span class="badge bg-rejected">禁用</span>'}</td>
            <td class="ts">${U.date(u.created_at)}</td>
            <td><button class="btn btn-o btn-sm" data-action="UsersPage:editUser:${u.id}:${U.escJs(u.username)}:${U.escJs(u.email)}:${U.escJs(u.game_name)}:${U.escJs(u.game_uid)}:${u.role}:${u.active}:${u.source||'netease'}"><i class="fas fa-edit"></i></button></td>
          </tr>`).join('')}</tbody></table></div>
      `;
    } catch (e) { ct.innerHTML = `<div class="alert alert-e">${e.message}</div>`; }
  },

  createUser() {
    this.loadServersForCreate();
  },

  async loadServersForCreate() {
    let groups = [];
    try { groups = await API.get('/polls/groups'); } catch {}
    const checks = groups.map(g => {
      return `<label style="display:inline-flex;align-items:center;gap:4px;margin:2px 8px 2px 0;font-size:12px;white-space:nowrap"><input type="checkbox" value="${g.group_name}::${g.server_name}" class="cu-srv"> ${g.group_name}/${g.server_name}</label>`;
    }).join('');

    U.modal('添加用户', `
      <form id="cu-form">
        <div class="grid-2"><div class="form-group"><label>用户名 *</label><input id="cu-u" required></div><div class="form-group"><label>密码 *</label><input type="password" id="cu-p" required minlength="6"></div></div>
        <div class="grid-2"><div class="form-group"><label>邮箱 *</label><input type="email" id="cu-e" required></div><div class="form-group"><label>来源</label><select id="cu-s"><option value="netease">网易端</option><option value="skin">皮肤站</option></select></div></div>
        <div class="grid-2"><div class="form-group"><label>角色 *</label><select id="cu-r" onchange="UsersPage.toggleCreateServers()">${Auth.isOwner()?'<option value="owner">服主</option>':''}<option value="admin">管理员</option><option value="player">玩家</option></select></div></div>
        <div class="grid-2"><div class="form-group"><label>游戏名 *</label><input id="cu-gn" required></div><div class="form-group"><label>游戏UID *</label><input id="cu-gu" required></div></div>
        <div class="form-group hidden" id="cu-servers"><label>管辖子服务器</label><div style="max-height:120px;overflow-y:auto;border:1px solid var(--g200);border-radius:var(--r);padding:8px">${checks||'<span class="tm">暂无可选服务器</span>'}</div></div>
        <div class="modal-f"><button type="button" class="btn btn-o" data-action="App:closeModal">取消</button><button type="submit" class="btn btn-p">创建</button></div>
      </form>
    `);
    document.getElementById('cu-form').onsubmit = async e => {
      e.preventDefault();
      const servers = [];
      document.querySelectorAll('.cu-srv:checked').forEach(cb => { const [g,s] = cb.value.split('::'); servers.push({group_name:g,server_name:s}); });
      try {
        await API.post('/users', {
          username: document.getElementById('cu-u').value, password: document.getElementById('cu-p').value,
          email: document.getElementById('cu-e').value, role: document.getElementById('cu-r').value,
          game_name: document.getElementById('cu-gn').value, game_uid: document.getElementById('cu-gu').value,
          source: document.getElementById('cu-s').value,
          admin_servers: servers,
        });
        App.closeModal(); this.load();
      } catch (ex) { alert(ex.message); }
    };
    setTimeout(() => UsersPage.toggleCreateServers(), 50);
  },

  toggleCreateServers() {
    const role = document.getElementById('cu-r').value;
    const div = document.getElementById('cu-servers');
    div.classList.toggle('hidden', role === 'player');
  },

  editUser(id, username, email, gameName, gameUid, role, active, source) {
    this.loadUserServers(id, username, email, gameName, gameUid, role, active, source);
  },

  async loadUserServers(id, username, email, gameName, gameUid, role, active, source) {
    let groups = [], userServers = [];
    try { groups = await API.get('/polls/groups'); } catch {}
    try { userServers = await API.get('/users/'+id+'/servers'); } catch {}
    const checks = groups.map(g => {
      const key = g.group_name+'::'+g.server_name;
      const has = userServers.some(s => s.group_name===g.group_name && s.server_name===g.server_name);
      return `<label style="display:inline-flex;align-items:center;gap:4px;margin:2px 8px 2px 0;font-size:12px;white-space:nowrap"><input type="checkbox" value="${key}" class="eu-srv" ${has?'checked':''}> ${g.group_name}/${g.server_name}</label>`;
    }).join('');

    U.modal('编辑用户', `
      <form id="eu-form">
        <div class="form-group"><label>用户名</label><input value="${username}" disabled style="background:var(--g100)"></div>
        <div class="grid-2"><div class="form-group"><label>邮箱</label><input type="email" id="eu-e" value="${email}"></div><div class="form-group"><label>来源</label><select id="eu-s"><option value="netease" ${source==='netease'?'selected':''}>网易端</option><option value="skin" ${source==='skin'?'selected':''}>皮肤站</option></select></div></div>
        <div class="grid-2"><div class="form-group"><label>角色</label><select id="eu-r">${['owner','admin','player'].map(r=>`<option value="${r}" ${r===role?'selected':''}>${U.ROLE[r]}</option>`).join('')}</select></div></div>
        <div class="grid-2"><div class="form-group"><label>游戏名</label><input id="eu-gn" value="${gameName}"></div><div class="form-group"><label>游戏UID</label><input id="eu-gu" value="${gameUid}"></div></div>
        <div class="form-group"><label>管辖子服务器</label><div style="max-height:120px;overflow-y:auto;border:1px solid var(--g200);border-radius:var(--r);padding:8px">${checks||'<span class="tm">无可用服务器（先在投票→分组管理中添加）</span>'}</div></div>
        <div class="grid-2"><div class="form-group"><label>新密码(留空不变)</label><input type="password" id="eu-p"></div><div class="form-group"><label>状态</label><select id="eu-a"><option value="1" ${active?'selected':''}>启用</option><option value="0" ${!active?'selected':''}>禁用</option></select></div></div>
        <div class="modal-f"><button type="button" class="btn btn-o" data-action="App:closeModal">取消</button><button type="submit" class="btn btn-p">保存</button></div>
      </form>
    `);
    document.getElementById('eu-form').onsubmit = async e => {
      e.preventDefault();
      const servers = [];
      document.querySelectorAll('.eu-srv:checked').forEach(cb => { const [g,s] = cb.value.split('::'); servers.push({group_name:g,server_name:s}); });
      const data = {
        email: document.getElementById('eu-e').value, role: document.getElementById('eu-r').value,
        game_name: document.getElementById('eu-gn').value, game_uid: document.getElementById('eu-gu').value,
        active: document.getElementById('eu-a').value === '1', source: document.getElementById('eu-s').value,
        admin_servers: servers,
      };
      const pw = document.getElementById('eu-p').value; if (pw) data.password = pw;
      try { await API.put('/users/'+id, data); App.closeModal(); this.load(); } catch (ex) { alert(ex.message); }
    };
  }
};