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

  async mount() {
    const ct = document.getElementById('page-content');
    document.getElementById('page-title').textContent = '控制�?;
    document.getElementById('page-actions').innerHTML = `
      <button class="btn btn-p btn-sm" onclick="App.navigate('tickets','create?type=report')"><i class="fas fa-flag"></i> 举报</button>
      <button class="btn btn-s btn-sm" onclick="App.navigate('tickets','create?type=suggestion')"><i class="fas fa-lightbulb"></i> 建议</button>
      <button class="btn btn-w btn-sm" onclick="App.navigate('tickets','create?type=appeal')"><i class="fas fa-gavel"></i> 申诉</button>
    `;

    try {
      const [stats, exports] = await Promise.all([
        API.get('/tickets/stats'),
        Auth.isOwner() ? API.get('/export/dashboard') : null,
      ]);
      this.renderContent(ct, stats, exports);
    } catch (e) { ct.innerHTML = `<div class="alert alert-e">${e.message}</div>`; }
  },

  renderContent(ct, stats, exports) {
    const byStatus = stats.byStatus || {};

    ct.innerHTML = `
      <div class="stats-grid">
        <div class="stat-card"><div class="si" style="background:#eef2ff;color:var(--p)"><i class="fas fa-ticket-alt"></i></div><div><div class="sv">${stats.total}</div><div class="sl">工单总数</div></div></div>
        <div class="stat-card"><div class="si" style="background:#fef3c7;color:#d97706"><i class="fas fa-clock"></i></div><div><div class="sv">${byStatus.pending || 0}</div><div class="sl">待处�?/div></div></div>
        <div class="stat-card"><div class="si" style="background:#ede9fe;color:#7c3aed"><i class="fas fa-cogs"></i></div><div><div class="sv">${byStatus.processing || 0}</div><div class="sl">处理�?/div></div></div>
        <div class="stat-card"><div class="si" style="background:#d1fae5;color:var(--s)"><i class="fas fa-check-circle"></i></div><div><div class="sv">${byStatus.resolved || 0}</div><div class="sl">已解�?/div></div></div>
      </div>

      ${Auth.isAdmin() && exports ? `
      <div class="grid-2">
        <div class="card"><div class="card-h">类型分布</div><div class="card-b">
          ${(exports.byType||[]).map(r => `<div class="detail-row"><span class="lbl">${U.TYPE[r.type]||r.type}</span><span class="val fb">${r.c} �?/span></div>`).join('')}
        </div></div>
        <div class="card"><div class="card-h">状态分�?/div><div class="card-b">
          ${(exports.byStatus||[]).map(r => `<div class="detail-row"><span class="lbl">${U.STATUS[r.status]||r.status}</span><span class="val fb">${r.c} �?/span></div>`).join('')}
        </div></div>
      </div>
      ${exports.monthly?.length ? `
      <div class="card"><div class="card-h">月度趋势</div><div class="card-b table-wrap"><table><thead><tr><th>月份</th><th>数量</th></tr></thead><tbody>${exports.monthly.map(m=>`<tr><td>${m.m}</td><td>${m.c}</td></tr>`).join('')}</tbody></table></div></div>` : ''}
      ` : ''}
      <p class="tm ts tc">提示: 可在"工单列表"中查看和管理所有工�?/p>
    `;
  }
};