(function (window, $) {
  'use strict';

  if (!$) return;

  var layuiReady = false;
  var layerApi = null;
  var genealogyContextStorageKey = 'genealogy_current_context_v1';
  var mobileMenuId = 'profile-mobile-menu';

  function getSessionStorage() {
    try {
      return window.sessionStorage;
    } catch (error) {
      return null;
    }
  }

  function normalizeGenealogyName(value) {
    var name = String(value === undefined || value === null ? '' : value).trim();

    return name && name.length <= 80 ? name : '';
  }

  function getStoredGenealogyContext() {
    var storage = getSessionStorage();
    var stored;
    var context;
    var genealogyId;
    var genealogyName;

    if (!storage) return null;
    try {
      stored = storage.getItem(genealogyContextStorageKey);
      context = stored ? JSON.parse(stored) : null;
    } catch (error) {
      return null;
    }
    genealogyId = normalizeGenealogyId(context && context.genealogyId);
    genealogyName = normalizeGenealogyName(context && context.genealogyName);
    return genealogyId && genealogyName ? {
      genealogyId: genealogyId,
      genealogyName: genealogyName
    } : null;
  }

  function setCurrentGenealogyContext(genealogyId, genealogyName) {
    var storage = getSessionStorage();
    var context = {
      genealogyId: normalizeGenealogyId(genealogyId),
      genealogyName: normalizeGenealogyName(genealogyName)
    };

    if (!context.genealogyId || !context.genealogyName) return null;
    if (storage) {
      try {
        storage.setItem(genealogyContextStorageKey, JSON.stringify(context));
      } catch (error) {}
    }
    renderCurrentGenealogyContext();
    return context;
  }

  function clearCurrentGenealogyContext() {
    var storage = getSessionStorage();

    if (!storage) return;
    try {
      storage.removeItem(genealogyContextStorageKey);
    } catch (error) {}
  }

  function getCurrentGenealogyContext() {
    var genealogyId = getGenealogyId();
    var context = getStoredGenealogyContext();

    return context && context.genealogyId === genealogyId ? context : null;
  }

  function openLegacyLogout() {
    var $modal = $('#logoutModal');

    if (!$modal.length) return;
    $modal.addClass('show').attr('aria-hidden', 'false');
    $('body').addClass('logout-modal-open');
  }

  function closeLegacyLogout() {
    var $modal = $('#logoutModal');

    $modal.removeClass('show').attr('aria-hidden', 'true');
    $('body').removeClass('logout-modal-open');
  }

  function openConfirm(options) {
    var settings = $.extend({
      title: '确认操作',
      content: '确定继续吗？',
      confirmText: '确定',
      cancelText: '取消',
      onConfirm: $.noop
    }, options || {});

    if (layerApi) {
      layerApi.confirm(settings.content, {
        title: settings.title,
        btn: [settings.confirmText, settings.cancelText],
        skin: 'profile-layer-confirm'
      }, function (index) {
        settings.onConfirm();
        layerApi.close(index);
      });
      return;
    }

    if (window.confirm(settings.content)) settings.onConfirm();
  }

  function initLayui() {
    if (!window.layui || layuiReady) return;

    layuiReady = true;
    window.layui.use(['layer', 'form'], function () {
      layerApi = window.layui.layer;
      if (window.layui.form) window.layui.form.render();
    });
  }

  function performLogout(targetUrl) {
    var api = window.GenealogyApi && window.GenealogyApi.defaultClient;
    var redirect = function () {
      clearCurrentGenealogyContext();
      window.location.href = targetUrl || 'index.html';
    };

    if (!api || !api.logout) {
      redirect();
      return;
    }

    api.logout().catch(function () {}).then(redirect);
  }

  function bindLogout() {
    $(document).on('click', '[data-logout-open]', function (event) {
      var targetUrl = $(this).attr('data-logout-url') || 'index.html';

      event.preventDefault();
      if (!layerApi) {
        openLegacyLogout();
        return;
      }

      openConfirm({
        title: '退出登录',
        content: '确认退出当前账号吗？退出后需要重新登录才能继续管理家谱。',
        confirmText: '确认退出',
        onConfirm: function () {
          performLogout(targetUrl);
        }
      });
    });

    $(document).on('click', '[data-logout-confirm]', function (event) {
      event.preventDefault();
      closeLegacyLogout();
      performLogout($(this).attr('href') || 'index.html');
    });

    $(document).on('click', '[data-logout-close]', function () {
      closeLegacyLogout();
    });

    $(document).on('keydown', function (event) {
      if (event.key === 'Escape') closeLegacyLogout();
    });
  }

  function bindConfirmActions() {
    $(document).on('click', '[data-layer-confirm]', function (event) {
      var $item = $(this);
      var href = $item.attr('href');

      event.preventDefault();
      openConfirm({
        title: $item.attr('data-confirm-title') || '确认操作',
        content: $item.attr('data-layer-confirm') || '确定继续吗？',
        confirmText: $item.attr('data-confirm-text') || '确定',
        onConfirm: function () {
          if (href && href !== '#') window.location.href = href;
        }
      });
    });
  }

  function normalizeGenealogyId(value) {
    var text = String(value === undefined || value === null ? '' : value).trim();

    return /^[1-9][0-9]*$/.test(text) ? text : '';
  }

  function getGenealogyId(search) {
    var source = search === undefined ? (window.location && window.location.search) : search;
    var params = new URLSearchParams(String(source || '').replace(/^\?/, ''));

    return normalizeGenealogyId(params.get('genealogyId'));
  }

  function withGenealogyId(href, genealogyId) {
    var value = String(href || '');
    var hashIndex;
    var hash = '';
    var parts;
    var params;

    genealogyId = normalizeGenealogyId(genealogyId);
    if (!genealogyId || !value || value.charAt(0) === '#' || /^(?:https?:|mailto:|tel:)/i.test(value)) return value;
    hashIndex = value.indexOf('#');
    if (hashIndex >= 0) {
      hash = value.slice(hashIndex);
      value = value.slice(0, hashIndex);
    }
    parts = value.split('?');
    params = new URLSearchParams(parts[1] || '');
    params.set('genealogyId', genealogyId);
    return parts[0] + '?' + params.toString() + hash;
  }

  function getGenealogyEntryUrl(href) {
    var value = String(href || '');

    if (!value || value.charAt(0) === '#' || /^(?:https?:|mailto:|tel:)/i.test(value)) return value;
    if (value.indexOf('profile-families.html') === 0) return value;
    return 'profile-families.html?next=' + encodeURIComponent(value.split('?')[0]);
  }

  function syncGenealogyContextLinks() {
    var genealogyId = getGenealogyId();

    $('[data-genealogy-context-link]').each(function () {
      var $link = $(this);

      $link.attr('href', genealogyId ? withGenealogyId($link.attr('href'), genealogyId) : getGenealogyEntryUrl($link.attr('href')));
    });
  }

  function renderCurrentGenealogyContext() {
    var context = getCurrentGenealogyContext();
    var name = context ? context.genealogyName : '正在识别家谱';

    $('[data-current-genealogy-name]').text(name);
    $('[data-current-genealogy-link]').attr('aria-label', context ?
      '当前家谱：' + context.genealogyName + '，点击切换家谱' :
      '当前家谱，点击切换家谱');
  }

  function refreshCurrentGenealogyContext() {
    var genealogyId = getGenealogyId();
    var api = window.GenealogyApi && window.GenealogyApi.defaultClient;

    if (!genealogyId || getCurrentGenealogyContext() || !api || !api.genealogyDetail) return;
    api.genealogyDetail(genealogyId).then(function (detail) {
      var detailId = normalizeGenealogyId(detail && detail.genealogyId);
      var detailName = normalizeGenealogyName(detail && detail.genealogyName);

      if (detailId === genealogyId && detailName) {
        setCurrentGenealogyContext(detailId, detailName);
      }
    }).catch(function () {
      $('[data-current-genealogy-name]').text('当前家谱');
    });
  }

  function initCurrentGenealogyContext() {
    var genealogyId = getGenealogyId();
    var $nav;
    var $actions;
    var $context;

    if (!genealogyId) return;
    $nav = $('.site-header .nav').first();
    if (!$nav.length || $nav.find('[data-current-genealogy-link]').length) return;
    $context = $('<a class="profile-current-genealogy" data-current-genealogy-link href="profile-families.html">' +
      '<span>当前家谱</span><strong data-current-genealogy-name>正在识别家谱</strong></a>');
    $actions = $nav.find('.nav-actions').first();
    if ($actions.length) $context.insertBefore($actions);
    else $nav.append($context);
    renderCurrentGenealogyContext();
    refreshCurrentGenealogyContext();
  }

  function setMobileMenuOpen(isOpen) {
    var $menu = $('[data-profile-mobile-menu]').first();
    var $toggle = $('[data-profile-mobile-menu-toggle]').first();

    if (!$menu.length || !$toggle.length) return;
    $menu.prop('hidden', !isOpen).toggleClass('is-open', !!isOpen).attr('aria-hidden', isOpen ? 'false' : 'true');
    $toggle.attr('aria-expanded', isOpen ? 'true' : 'false');
  }

  function initMobileMenu() {
    var $header = $('.site-header').first();
    var $nav;
    var currentPage;

    if (!$header.length || $header.find('[data-profile-mobile-menu]').length) return;
    $nav = $header.find('.nav').first();
    if (!$nav.length) return;
    $nav.append('<button class="profile-mobile-menu-toggle" type="button" data-profile-mobile-menu-toggle ' +
      'aria-expanded="false" aria-controls="' + mobileMenuId + '">菜单</button>');
    $header.append('<div class="profile-mobile-menu" id="' + mobileMenuId + '" data-profile-mobile-menu hidden aria-hidden="true">' +
      '<div class="container profile-mobile-menu-inner">' +
      '<a href="profile.html">个人中心</a>' +
      '<a href="profile-families.html">我的家谱</a>' +
      '<a href="profile-create-family.html">创建家谱</a>' +
      '<a href="profile-family-home.html" data-genealogy-context-link>家谱主页</a>' +
      '<a href="profile-content.html" data-genealogy-context-link>内容发布</a>' +
      '<a href="profile-family-admin.html" data-genealogy-context-link>家族管理</a>' +
      '<a href="profile-data.html">个人资料</a>' +
      '<a href="profile-messages.html">消息中心</a>' +
      '<a href="profile-services.html">帮助与服务</a>' +
      '<button type="button" data-logout-open data-logout-url="index.html">退出登录</button>' +
      '</div></div>');
    currentPage = (window.location.pathname.split('/').pop() || 'profile.html').split('?')[0];
    $header.find('[data-profile-mobile-menu] a').each(function () {
      var $link = $(this);
      var target = ($link.attr('href') || '').split('?')[0];

      if (target === currentPage) $link.addClass('is-current').attr('aria-current', 'page');
    });
  }

  function bindGenealogySelection() {
    $(document).on('click', '[data-genealogy-id][data-genealogy-name]', function () {
      setCurrentGenealogyContext($(this).attr('data-genealogy-id'), $(this).attr('data-genealogy-name'));
    });
  }

  function bindMobileMenu() {
    $(document).on('click', '[data-profile-mobile-menu-toggle]', function () {
      setMobileMenuOpen($(this).attr('aria-expanded') !== 'true');
    });
    $(document).on('click', '[data-profile-mobile-menu] a, [data-profile-mobile-menu] button', function () {
      setMobileMenuOpen(false);
    });
    $(document).on('click', function (event) {
      if (!$(event.target).closest('.site-header').length) setMobileMenuOpen(false);
    });
    $(document).on('keydown', function (event) {
      if (event.key === 'Escape') setMobileMenuOpen(false);
    });
  }

  function updateDisplay($trigger, value) {
    var target = $trigger.attr('data-update-target');
    var $target = target ? $(target) : $trigger.closest('p').find('b').first();
    var $title;

    if (!value) return;
    if ($target.length) {
      $target.text(value);
      return;
    }

    $title = $trigger.closest('.module-row').find('h3').first();
    if ($title.length) {
      $title.text($title.text().replace(/([：:]).*$/, '$1' + value));
    }
  }

  function bindPromptActions() {
    $(document).on('click', '[data-layer-prompt]', function (event) {
      var $item = $(this);
      var title = $item.attr('data-prompt-title') || $item.text() || '填写内容';
      var placeholder = $item.attr('data-layer-prompt') || '';
      var formType = $item.attr('data-prompt-type') === 'textarea' ? 2 : 0;

      event.preventDefault();
      if (!layerApi) {
        var fallbackValue = window.prompt(placeholder || title, '');
        if (fallbackValue) updateDisplay($item, fallbackValue);
        return;
      }

      layerApi.prompt({
        title: title,
        value: $item.attr('data-prompt-value') || '',
        formType: formType,
        maxlength: Number($item.attr('data-prompt-maxlength')) || 200
      }, function (value, index) {
        updateDisplay($item, value);
        layerApi.close(index);
        layerApi.msg('已更新');
      });
    });
  }

  function bindSelectActions() {
    $(document).on('click', '[data-layer-select]', function (event) {
      var $item = $(this);
      var values = ($item.attr('data-layer-select') || '').split('|').filter(Boolean);
      var title = $item.attr('data-select-title') || '请选择';
      var html = '<div class="profile-popup-select">';

      event.preventDefault();
      if (!values.length) return;

      $.each(values, function (_, value) {
        html += '<button type="button" data-popup-value="' + value + '">' + value + '</button>';
      });
      html += '</div>';

      if (!layerApi) {
        updateDisplay($item, values[0]);
        return;
      }

      layerApi.open({
        title: title,
        content: html,
        area: ['360px', 'auto'],
        skin: 'profile-layer-confirm',
        success: function (layero, index) {
          layero.find('[data-popup-value]').on('click', function () {
            updateDisplay($item, $(this).attr('data-popup-value'));
            layerApi.close(index);
            layerApi.msg('已选择');
          });
        }
      });
    });
  }

  function bindMessageActions() {
    $(document).on('click', '[data-layer-msg]', function (event) {
      event.preventDefault();
      if (layerApi) layerApi.msg($(this).attr('data-layer-msg'));
    });
  }

  function bindSelectableCards() {
    $(document).on('click', '[data-select-card]', function () {
      var $card = $(this);
      var group = $card.attr('data-select-card');

      if (group) $('[data-select-card="' + group + '"]').removeClass('is-selected');
      $card.addClass('is-selected');
    });
  }

  $(function () {
    initLayui();
    bindLogout();
    bindConfirmActions();
    bindPromptActions();
    bindSelectActions();
    bindMessageActions();
    bindSelectableCards();
    bindGenealogySelection();
    bindMobileMenu();
    initCurrentGenealogyContext();
    initMobileMenu();
    syncGenealogyContextLinks();
  });

  window.ProfileUI = {
    confirm: openConfirm,
    closeLogout: closeLegacyLogout,
    initLayui: initLayui,
    getGenealogyId: getGenealogyId,
    normalizeGenealogyId: normalizeGenealogyId,
    withGenealogyId: withGenealogyId,
    getGenealogyEntryUrl: getGenealogyEntryUrl,
    getCurrentGenealogyContext: getCurrentGenealogyContext,
    setCurrentGenealogyContext: setCurrentGenealogyContext,
    clearCurrentGenealogyContext: clearCurrentGenealogyContext,
    refreshCurrentGenealogyContext: refreshCurrentGenealogyContext,
    syncGenealogyContextLinks: syncGenealogyContextLinks
  };
})(window, window.jQuery || (window.layui && window.layui.$));