<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Kole UI · ExpandableTable</title>
  <link rel="stylesheet" href="../.design_library/kole-ui/colors_and_type.css" />
  <link rel="stylesheet" href="./ExpandableTable.css" />
</head>
<body>
  <div class="kole-page">
    <h2 class="kole-h2">ExpandableTable 可展开表格</h2>
    <p class="kole-desc">行首展开图标可展开详情（子表格 / 描述），支持同时展开多行或仅一行。</p>

    <div class="kole-demo">
      <div class="kole-demo__title">订单明细（点击箭头展开）</div>
      <table class="kole-exptable" id="exptable">
        <thead><tr><th style="width:40px"></th><th>订单号</th><th>客户</th><th>金额</th><th>状态</th></tr></thead>
        <tbody></tbody>
      </table>
    </div>
  </div>

  <script>
    var data = [
      { id: 'NO20240801', cust: '北京科技有限公司', amount: 1280, status: '已付款',
        detail: { items: ['企业版授权 ×1', '实施服务 ×1'], note: '对公转账，预计 3 个工作日内开通。' } },
      { id: 'NO20240802', cust: '上海贸易行', amount: 560, status: '待发货',
        detail: { items: ['标准版授权 ×2'], note: '已开票，等待仓库出库。' } },
      { id: 'NO20240803', cust: '广州信息公司', amount: 3200, status: '已完成',
        detail: { items: ['旗舰版授权 ×1', '培训服务 ×3', '运维包 ×1'], note: '项目已验收，进入维保期。' } }
    ];
    var openSet = new Set();
    var tbody = document.querySelector('#exptable tbody');

    function rowHtml(d) {
      var open = openSet.has(d.id);
      var sub = d.detail.items.map(function (i) { return '<div>· ' + i + '</div>'; }).join('');
      return '' +
        '<tr class="kole-row">' +
          '<td><button class="kole-exp-toggle' + (open ? ' is-open' : '') + '" role="button" tabindex="0" data-id="' + d.id + '">▶</button></td>' +
          '<td>' + d.id + '</td>' +
          '<td>' + d.cust + '</td>' +
          '<td>¥' + d.amount + '</td>' +
          '<td>' + d.status + '</td>' +
        '</tr>' +
        (open ? '<tr class="kole-exp-row"><td></td><td colspan="4"><div class="kole-exp-panel">' +
          '<div>备注：' + d.detail.note + '</div><div class="kole-exp-sub">' + sub + '</div>' +
        '</div></td></tr>' : '');
    }
    function render() { tbody.innerHTML = data.map(rowHtml).join(''); }

    tbody.addEventListener('click', function (e) {
      var btn = e.target.closest('.kole-exp-toggle');
      if (!btn) return;
      var id = btn.dataset.id;
      if (openSet.has(id)) openSet.delete(id); else openSet.add(id);
      render();
    });
    render();
  </script>
</body>
</html>
