/* 官网导航交互：汉堡菜单 + 登录态感知（Web 版 App 与官网同域时，
   localStorage['flutter.*'] 有登录信息 → CTA 变「进入系统」）。零依赖。 */
(function () {
  function getAuthUser() {
    var token = localStorage.getItem('flutter.access_token');
    var username = localStorage.getItem('flutter.username');
    if (!token || !username) return null;
    return {
      username: username,
      realName: localStorage.getItem('flutter.real_name') || '',
      shopNo: localStorage.getItem('flutter.shop_no') || '',
    };
  }

  // 汉堡菜单
  var burger = document.getElementById('nav-burger');
  var mobile = document.getElementById('nav-mobile-menu');
  if (burger && mobile) {
    burger.addEventListener('click', function (e) {
      e.stopPropagation();
      var open = mobile.classList.toggle('open');
      burger.setAttribute('aria-expanded', open ? 'true' : 'false');
    });
    document.addEventListener('click', function (e) {
      if (!mobile.contains(e.target) && e.target !== burger) {
        mobile.classList.remove('open');
      }
    });
  }

  // 登录态：CTA 换成「进入系统」
  var user = getAuthUser();
  if (user) {
    var cta = document.getElementById('nav-cta');
    if (cta) {
      cta.innerHTML =
        '<a class="btn primary" href="/app/">进入系统 · ' +
        (user.realName || user.username).replace(/[<>&"]/g, '') +
        '</a>';
    }
  }
})();