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

  async mount() {
    document.getElementById('page-title').textContent = '封禁列表';
    document.getElementById('page-actions').innerHTML = Auth.isOwner()
      ? '<button class="btn btn-p btn-sm" id="add-ban-btn"><i class="fas fa-plus"></i> 添加封禁</button>'
      : '';
    const btn = document.getElementById('add-ban-btn');
    if (btn) btn.onclick = () => this.showAddBan();
    await this.load();
  },

  async load() {
    const ct = document.getElementById('page-content');
    try {
      const bans = await API.get('/bans/active');
      const isStaff = Auth.isAdmin();

      ct.innerHTML = bans.length === 0
        ? '<div class="empty"><i class="fas fa-ban"></i><p>暂无封禁记录</p></div>'
        : `<div class="card table-wrap"><table><thead><tr><th>玩家</th><th>UID</th><th>类型</th><th>原因</th><th>时长</th><th>状态</th><th>时间</th>${Auth.isOwner()?'<th>操作</th>':''}</tr></thead><tbody>${bans.map(b => `
          <tr>
            <td>${isStaff ? U.esc(b.player_name) : maskName(b.player_name)}</td>
            <td class="ts">${isStaff ? U.esc(b.player_uid||'-') : maskUid(b.player_uid)}</td>
            <td>${b.type==='ban'?'<span class="badge bg-urgent">封禁</span>':b.type==='mute'?'<span class="badge bg-medium">禁言</span>':'<span class="badge bg-player">警告</span>'}</td>
            <td class="ts">${U.esc((b.reason||'').substring(0,50))}</td>
            <td>${b.duration||'永久'}</td>
            <td>${b.status==='active'?'<span class="badge bg-rejected">生效中</span>':'<span class="badge bg-closed">已解除</span>'}</td>
            <td class="ts">${U.date(b.created_at)}</td>
            ${Auth.isOwner()?`<td><button class="btn btn-o btn-sm" onclick="BansPage.lift(${b.id})"><i class="fas fa-check"></i> 解除</button></td>`:''}
          </tr>`).join('')}</tbody></table></div>`;
    } catch(e) { ct.innerHTML = `<div class="alert alert-e">${e.message}</div>`; }
  },

  showAddBan() {
    U.modal('添加封禁', `
      <form id="ban-form">
        <div class="grid-2"><div class="form-group"><label>玩家名 *</label><input id="ban-name" required></div><div class="form-group"><label>UID</label><input id="ban-uid"></div></div>
        <div class="grid-2"><div class="form-group"><label>类型</label><select id="ban-type" onchange="BansPage.checkMinDuration()"><option value="ban">封禁</option><option value="mute">禁言</option><option value="warn">警告</option></select></div><div class="form-group"><label>时长</label><select id="ban-dur"><option value="">永久</option><option value="3天">3天</option><option value="7天">7天</option><option value="30天">30天</option></select></div></div>
        <div class="form-group"><label>原因</label><textarea id="ban-reason" rows="2"></textarea></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">添加</button></div>
      </form>
    `);
    document.getElementById('ban-form').onsubmit = async e => {
      e.preventDefault();
      try {
        await API.post('/bans', { player_name: document.getElementById('ban-name').value, player_uid: document.getElementById('ban-uid').value, type: document.getElementById('ban-type').value, duration: document.getElementById('ban-dur').value, reason: document.getElementById('ban-reason').value });
        App.closeModal(); this.load();
      } catch(ex) { alert(ex.message); }
    };
    setTimeout(() => BansPage.checkMinDuration(), 100);
  },

  async checkMinDuration() {
    const name = document.getElementById('ban-name')?.value;
    const uid = document.getElementById('ban-uid')?.value;
    const type = document.getElementById('ban-type')?.value;
    if (!name && !uid) return;
    try {
      const r = await API.get('/bans/min-duration?player_name='+name+'&player_uid='+uid+'&type='+type);
      const sel = document.getElementById('ban-dur');
      if (r.minDays > 0) {
        sel.innerHTML = `<option value="${r.minDays}天">≥ ${r.minDays}天</option><option value="30天">30天</option><option value="">永久</option>`;
      } else {
        sel.innerHTML = `<option value="">永久</option><option value="1天">1天</option><option value="3天">3天</option><option value="7天">7天</option><option value="30天">30天</option>`;
      }
    } catch {}
  },

  async lift(id) {
    if (!await U.confirm('确认解除该封禁？')) return;
    try { await API.put('/bans/'+id, { status: 'lifted' }); this.load(); } catch(ex){alert(ex.message);}
  }
};

function maskName(n) { if (!n) return '***'; return n[0] + '***' + (n.length>2?n[n.length-1]:''); }
function maskUid(u) { if (!u) return '***'; return u.substring(0,3) + '****' + u.substring(u.length-3); }