(function () {
    var element = layui.element,
        laytpl = layui.laytpl,
        layer = layui.layer;

    var miniMenu = {

        // 菜单数据缓存（renderMultiModule 入口保存，收藏过滤与面板渲染复用；保存原 menuList 引用）
        menuData: [],

        /**
         * 菜单初始化
         * @param options.menuList   菜单数据信息
         * @param options.menuChildOpen 是否展开子菜单
         */
        render: function (options) {
            options.menuList = options.menuList || [];
            options.menuChildOpen = options.menuChildOpen || false;

            if (!ua.checkMobile()) {
                miniMenu.renderMultiModule(options.menuList, options.menuChildOpen);
            } else {
                miniMenu.renderSingleModule(options.menuList, options.menuChildOpen);
            }
            miniMenu.listen();
        },

        /**
         * 单模块
         * @param menuList 菜单数据
         * @param menuChildOpen 是否默认展开
         */
        renderSingleModule: function (menuList, menuChildOpen) {
            menuList = menuList || [];
            var leftMenuHtml = '',
                childOpenClass = '',
                leftMenuCheckDefault = 'layui-this';
            var me = this;
            if (menuChildOpen) childOpenClass = ' layui-nav-itemed';
            leftMenuHtml = this.renderLeftMenu(menuList, { childOpenClass: childOpenClass });
            $('.layui-layout-body').addClass('layuimini-single-module'); //单模块标识
            $('.layuimini-menu-left').html(leftMenuHtml);

            element.init();
        },

        /**
         * 渲染一级菜单
         */
        compileMenu: function (menu, isSub) {
            var menuHtml = '<li {{#if( d.menu){ }}  data-menu="{{-d.menu}}" {{#}}} class="layui-nav-item menu-li {{-d.childOpenClass}} {{-d.className}}"  {{#if( d.id){ }}  id="{{-d.id}}" {{#}}}> <a title="{{-d.title}}" {{#if( d.href){ }} layuimini-href="{{-d.href}}" {{#}}} {{#if( d.target){ }}  target="{{-d.target}}" {{#}}} href="javascript:;">{{#if( d.icon){ }}  <i class="{{-d.icon}}"></i> {{#}}} <span class="layui-left-nav">{{-d.title}}</span></a>  {{# if(d.children){}} {{-d.children}} {{#}}} </li>';
            if (isSub) {
                menuHtml = '<dd class="menu-dd {{-d.childOpenClass}} {{- d.className }}"> <a href="javascript:;" title="{{-d.title}}"  {{#if( d.menu){ }}  data-menu="{{-d.menu}}" {{#}}} {{#if( d.id){ }}  id="{{-d.id}}" {{#}}} {{#if(( !d.child || !d.child.length ) && d.href){ }} layuimini-href="{{-d.href}}" {{#}}} {{#if( d.target){ }}  target="{{-d.target}}" {{#}}}> {{#if( d.icon){ }}  <i class="{{-d.icon}}"></i> {{#}}} <span class="layui-left-nav"> {{-d.title}}</span></a> {{# if(d.children){}} {{-d.children}} {{#}}}</dd>';
            }
            return laytpl(menuHtml).render(menu);
        },
        compileMenuContainer: function (menu, isSub) {
            var wrapperHtml = '<ul class="layui-nav layui-nav-tree layui-left-nav-tree {{-d.className}}" id="{{-d.id}}">{{-d.children}}</ul>';
            if (isSub) {
                wrapperHtml = '<dl class="layui-nav-child ">{{-d.children}}</dl>';
            }
            if (!menu.children) {
                return "";
            }
            return laytpl(wrapperHtml).render(menu);
        },

        each: function (list, callback) {
            var _list = [];
            for (var i = 0, length = list.length; i < length; i++) {
                _list[i] = callback(i, list[i]);
            }
            return _list;
        },
        renderChildrenMenu: function (menuList, options) {
            var me = this;
            menuList = menuList || [];
            var html = this.each(menuList, function (idx, menu) {
                if (menu.child && menu.child.length) {
                    menu.children = me.renderChildrenMenu(menu.child, { childOpenClass: options.childOpenClass || '' });
                }
                menu.className = "";
                menu.childOpenClass = options.childOpenClass || '';
                return me.compileMenu(menu, true);
            }).join("");
            return me.compileMenuContainer({ children: html }, true);
        },
        renderLeftMenu: function (leftMenus, options) {
            options = options || {};
            var me = this;
            var leftMenusHtml = me.each(leftMenus || [], function (idx, leftMenu) { // 左侧菜单遍历
                var children = me.renderChildrenMenu(leftMenu.child, { childOpenClass: options.childOpenClass });
                var leftMenuHtml = me.compileMenu({
                    href: leftMenu.href,
                    target: leftMenu.target,
                    childOpenClass: options.childOpenClass,
                    icon: leftMenu.icon,
                    title: leftMenu.title,
                    children: children,
                    className: '',
                });
                return leftMenuHtml;
            }).join("");

            leftMenusHtml = me.compileMenuContainer({ id: options.parentMenuId, className: options.leftMenuCheckDefault, children: leftMenusHtml });
            return leftMenusHtml;
        },
        /**
         * 头部模块收藏存储适配层（以 title 为唯一标识，未来可整体替换为后端实现）
         */
        getFavorites: function () {
            var favorites = [];
            try {
                favorites = JSON.parse(localStorage.getItem('layuiminiHeaderModuleFavorites'));
            } catch (e) {
                favorites = [];
            }
            if (!Array.isArray(favorites)) {
                return [];
            }
            // 与当前菜单 title 求交集，过滤已失效项，保持存储顺序
            var valid = [];
            miniMenu.each(miniMenu.menuData || [], function (index, menu) {
                valid.push(menu.title);
            });
            var result = [];
            miniMenu.each(favorites, function (index, title) {
                if (valid.indexOf(title) !== -1) {
                    result.push(title);
                }
            });
            return result;
        },

        /**
         * 写回收藏列表
         */
        setFavorites: function (list) {
            localStorage.setItem('layuiminiHeaderModuleFavorites', JSON.stringify(list || []));
        },

        /**
         * 是否已收藏
         */
        isFavorite: function (title) {
            return miniMenu.getFavorites().indexOf(title) !== -1;
        },

        /**
         * 切换收藏状态，返回切换后的新状态（true=已收藏）
         */
        toggleFavorite: function (title) {
            var favorites = miniMenu.getFavorites();
            var isAdd = favorites.indexOf(title) === -1;
            if (isAdd) {
                favorites.push(title);
            } else {
                favorites.splice(favorites.indexOf(title), 1);
            }
            miniMenu.setFavorites(favorites);
            return isAdd;
        },

        /**
         * 头部模块排序：收藏组在前（组内保持菜单原序），未收藏组回填在后（保持菜单原序）
         * 返回新数组、不修改入参；multi_module_N 下标仍按原 menuList 索引分配，仅排序显示顺序
         * 注：收藏以 title 为唯一标识，顶级模块重名视为同一收藏（同时置顶/同时取消）——
         * 框架菜单管理实际不产生重名顶级模块，此为已文档化假设而非保证
         */
        sortModules: function (menuList) {
            var favorites = miniMenu.getFavorites();
            var sorted = [];
            var backfill = [];
            miniMenu.each(menuList || [], function (index, menu) {
                if (favorites.indexOf(menu.title) !== -1) {
                    sorted.push(menu);
                } else {
                    backfill.push(menu);
                }
            });
            return sorted.concat(backfill);
        },

        /**
         * 多模块
         * @param menuList 菜单数据
         * @param menuChildOpen 是否默认展开
         */
        renderMultiModule: function (menuList, menuChildOpen) {
            menuList = menuList || [];
            var me = this;
            miniMenu.menuData = menuList; //入口保存，注意为原数组引用
            var sortedMenuList = this.sortModules(menuList); //头部显示顺序：收藏置顶+原序回填，仅排序不改下标映射
            var firstMenu = 'multi_module_' + menuList.indexOf(sortedMenuList[0]); //排序后首模块，首屏一致性锚点
            var headerMenuHtml = '',

                leftMenuHtml = '',
                childOpenClass = '',
                headerMenuCheckDefault = 'layui-this';

            if (menuChildOpen) childOpenClass = ' layui-nav-itemed';
            var headerMenuHtml = this.each(sortedMenuList, function (index, val) { //顶部菜单渲染（按排序后顺序编译，data-menu 仍按原 menuList 下标映射）
                var menu = 'multi_module_' + menuList.indexOf(val);
                var id = menu + "HeaderId";
                var topMenuItemHtml = "";
                topMenuItemHtml = me.compileMenu({
                    className: headerMenuCheckDefault,
                    menu: menu,
                    id: id,
                    title: val.title,
                    href: "",
                    target: "",
                    children: ""
                });
                headerMenuCheckDefault = "";
                return topMenuItemHtml;
            }).join("");
            leftMenuHtml = this.each(menuList, function (index, val) { //左侧菜单累积与 ul#multi_module_N 分配保持原 menuList 顺序（收藏只影响头部与面板显示顺序）
                var menu = 'multi_module_' + index;
                var leftMenuCheckDefault = (menu === firstMenu) ? 'layui-this' : 'layui-hide'; //默认可见 ul=排序后首模块，与头部激活项首屏一致
                return me.renderLeftMenu(val.child, {
                    parentMenuId: menu,
                    childOpenClass: childOpenClass,
                    leftMenuCheckDefault: leftMenuCheckDefault
                });
            }).join("");
            $('.layui-layout-body').addClass('layuimini-multi-module'); //多模块标识
            $('.layuimini-menu-header-pc').html(headerMenuHtml); //电脑
            $('.layuimini-menu-left').html(leftMenuHtml);
            
            element.init();
        },

        /**
         * 监听
         */
        listen: function () {

            /**
             * 菜单模块切换
             */
            $('body').on('click', '[data-menu]', function () {
                var loading = layer.load(0, { shade: false, time: 2 * 1000 });
                var menuId = $(this).attr('data-menu');
                // header
                $(".layuimini-header-menu .layui-nav-item.layui-this").removeClass('layui-this');
                $(this).addClass('layui-this');
                // left
                $(".layuimini-menu-left .layui-nav.layui-nav-tree.layui-this").addClass('layui-hide');
                $(".layuimini-menu-left .layui-nav.layui-nav-tree.layui-this.layui-hide").removeClass('layui-this');
                $("#" + menuId).removeClass('layui-hide');
                $("#" + menuId).addClass('layui-this');
                layer.close(loading);
            });

            /**
             * 菜单缩放
             */
            $('body').on('click', '.layuimini-site-mobile', function () {
                var loading = layer.load(0, { shade: false, time: 2 * 1000 });
                var isShow = $('.layuimini-tool [data-side-fold]').attr('data-side-fold');
                if (isShow == 1) { // 缩放
                    $('.layuimini-tool [data-side-fold]').attr('data-side-fold', 0);
                    $('.layuimini-tool [data-side-fold]').attr('class', 'fa fa-indent');
                    $('.layui-layout-body').removeClass('layuimini-all');
                    $('.layui-layout-body').addClass('layuimini-mini');
                } else { // 正常
                    $('.layuimini-tool [data-side-fold]').attr('data-side-fold', 1);
                    $('.layuimini-tool [data-side-fold]').attr('class', 'fa fa-outdent');
                    $('.layui-layout-body').removeClass('layuimini-mini');
                    $('.layui-layout-body').addClass('layuimini-all');
                    layer.close(window.openTips);
                }
                element.init();
                layer.close(loading);
            });
            /**
             * 菜单缩放
             */
            $('body').on('click', '[data-side-fold]', function () {
                var loading = layer.load(0, { shade: false, time: 2 * 1000 });
                var isShow = $('.layuimini-tool [data-side-fold]').attr('data-side-fold');
                if (isShow == 1) { // 缩放
                    $('.layuimini-tool [data-side-fold]').attr('data-side-fold', 0);
                    $('.layuimini-tool [data-side-fold]').attr('class', 'fa fa-indent');
                    $('.layui-layout-body').removeClass('layuimini-all');
                    $('.layui-layout-body').addClass('layuimini-mini');
                    // $(".menu-li").each(function (idx,el) {
                    //     $(el).addClass("hidden-sub-menu");
                    // });

                } else { // 正常
                    $('.layuimini-tool [data-side-fold]').attr('data-side-fold', 1);
                    $('.layuimini-tool [data-side-fold]').attr('class', 'fa fa-outdent');
                    $('.layui-layout-body').removeClass('layuimini-mini');
                    $('.layui-layout-body').addClass('layuimini-all');
                    // $(".menu-li").each(function (idx,el) {
                    //     $(el).removeClass("hidden-sub-menu");
                    // });
                    layer.close(window.openTips);
                }
                element.init();
                layer.close(loading);
            });
        },

    };


    window.miniMenu = miniMenu;
})();