(function () {
  'use strict';

  var _opts = {};
  var _logoutBound = false;

  function showAuthedNav() {
    var guest = document.getElementById('auth_guest');
    var account = document.getElementById('auth_account');
    var session = document.getElementById('auth_session');
    var logout = document.getElementById('auth_logout');
    if (guest) guest.style.display = 'none';
    if (account) account.style.display = 'inline-flex';
    if (session) session.style.display = 'inline-flex';
    if (logout) logout.style.display = 'inline-flex';
  }

  function showGuestNav() {
    var guest = document.getElementById('auth_guest');
    var account = document.getElementById('auth_account');
    var session = document.getElementById('auth_session');
    var admin = document.getElementById('auth_admin');
    var avatar = document.getElementById('auth_avatar');
    var identity = document.getElementById('auth_identity');
    var logout = document.getElementById('auth_logout');
    if (guest) guest.style.display = '';
    if (account) account.style.display = 'none';
    if (session) session.style.display = 'none';
    if (admin) admin.style.display = 'none';
    if (logout) logout.style.display = 'none';
    if (avatar) {
      avatar.style.display = 'none';
      avatar.textContent = '';
      avatar.title = '';
    }
    if (identity) {
      identity.style.display = 'none';
      identity.textContent = '';
    }
  }

  function clearSession() {
    if (typeof window.soonClearAuthSession === 'function') window.soonClearAuthSession();
    else {
      localStorage.removeItem('soon_access');
      localStorage.removeItem('soon_refresh');
    }
    if (typeof window.soonApplyMembership === 'function') window.soonApplyMembership(null);
  }

  function applyUserUi(data) {
    if (typeof window.soonApplyMembership === 'function') window.soonApplyMembership(data);
    var admin = document.getElementById('auth_admin');
    var avatar = document.getElementById('auth_avatar');
    if (data.role === 'admin' && admin) admin.style.display = 'inline-flex';
    if (avatar && data.email) {
      avatar.style.display = 'inline-flex';
      avatar.textContent = data.email.charAt(0).toUpperCase();
      avatar.title = data.email;
    }
    if (typeof window.soonRefreshPortalIdentity === 'function') window.soonRefreshPortalIdentity();
  }

  function initClearCache() {
    var btn = document.getElementById('auth_clear_cache');
    if (!btn || btn.getAttribute('data-soon-bound') === '1') return;
    btn.setAttribute('data-soon-bound', '1');
    btn.addEventListener('click', function (e) {
      e.preventDefault();
      if (typeof layui === 'undefined' || typeof window.soonClearLocalDesignCache !== 'function') return;
      layui.use('layer', function () {
        var layer = layui.layer;
        layer.open({
          type: 1,
          skin: 'soon-layer',
          title: '清除本地缓存',
          content: '<div class="soon-dialog-body">将清除最近文件与本地缓存，不会退出登录。未上传的本地编辑将丢失。</div>',
          btn: ['确定清除', '取消'],
          btnAlign: 'r',
          area: ['320px', 'auto'],
          shadeClose: true,
          yes: function (index) {
            layer.close(index);
            window.soonClearLocalDesignCache().then(function () {
              if (typeof window.soonToast === 'function') window.soonToast('已清除本地缓存', 'success');
              else layer.msg('已清除本地缓存', { icon: 1, time: 1200 });
              setTimeout(function () {
                if (/design[12]\.web\.html/i.test(location.pathname || '')) location.href = 'index.web.html';
                else location.reload();
              }, 400);
            });
          },
        });
      });
    });
  }

  function bindLogoutOnce(options) {
    if (_logoutBound) return;
    var logout = document.getElementById('auth_logout');
    if (!logout) return;
    _logoutBound = true;
    logout.addEventListener('click', function (e) {
      e.preventDefault();
      clearSession();
      showGuestNav();
      if (options.logoutReload !== false) location.reload();
      else location.href = 'index.web.html';
    });
  }

  function bindPopupLink(id, fn) {
    var el = document.getElementById(id);
    if (!el || el.getAttribute('data-soon-popup-bound') === '1') return;
    el.setAttribute('data-soon-popup-bound', '1');
    el.addEventListener('click', function (e) {
      e.preventDefault();
      fn();
    });
  }

  function bindPopupAuthLinks() {
    if (typeof window.soonShowLoginGate !== 'function') return;
    bindPopupLink('auth_login', function () {
      window.soonShowLoginGate({ reason: '登录账号' });
    });
    if (typeof window.soonShowRegisterGate === 'function') {
      bindPopupLink('auth_register', function () {
        window.soonShowRegisterGate({ reason: '注册账号' });
      });
    }
  }

  function refreshAuthUi(options) {
    options = options || _opts || {};
    initClearCache();
    bindLogoutOnce(options);
    bindPopupAuthLinks();

    var tok = localStorage.getItem('soon_access') || '';
    if (!tok) {
      showGuestNav();
      return Promise.resolve();
    }

    showAuthedNav();

    var base = (window.SOON_DEPLOY_CONFIG && window.SOON_DEPLOY_CONFIG.api_v1_base) || '';
    if (!base) {
      if (typeof window.soonRefreshPortalIdentity === 'function') window.soonRefreshPortalIdentity();
      return Promise.resolve();
    }

    var meFetch = typeof window.soonAuthedFetch === 'function'
      ? window.soonAuthedFetch(base + '/auth/me', { headers: { Authorization: 'Bearer ' + tok } })
      : fetch(base + '/auth/me', { headers: { Authorization: 'Bearer ' + tok } });

    return meFetch
      .then(function (r) {
        if (r.status === 401) {
          clearSession();
          showGuestNav();
          return null;
        }
        if (!r.ok) {
          if (typeof window.soonToast === 'function') window.soonToast('网络异常，部分功能可能不可用', 'warn');
          if (typeof window.soonRefreshPortalIdentity === 'function') window.soonRefreshPortalIdentity();
          return null;
        }
        return r.json();
      })
      .then(function (j) {
        if (!j) return;
        if (!j.ok || !j.data) {
          clearSession();
          showGuestNav();
          return;
        }
        applyUserUi(j.data);
        if (typeof options.onAuthed === 'function') options.onAuthed(j.data);
      })
      .catch(function () {
        if (typeof window.soonToast === 'function') window.soonToast('网络异常，部分功能可能不可用', 'warn');
        if (typeof window.soonRefreshPortalIdentity === 'function') window.soonRefreshPortalIdentity();
      });
  }

  function initTopbar(options) {
    _opts = options || {};
    return refreshAuthUi(_opts);
  }

  window.soonRefreshPortalAuthUi = refreshAuthUi;
  window.soonPortalAuth = { init: initTopbar, refresh: refreshAuthUi };
})();