public async Task <List <SiteMenuItem> > GetMenuItems()
        {
            int currentItemId             = _urlService.GetItemId();
            List <SiteMenuItem> menuItems = new List <SiteMenuItem>();
            List <Item>         items     = await this._domainContext.Items.GetAll();

            var groups = items.OrderBy(x => x.Name).GroupBy(x => x.Category);

            foreach (var group in groups)
            {
                if (string.IsNullOrEmpty(group.Key))
                {
                    foreach (var item in group)
                    {
                        menuItems.Add(new SiteMenuItem()
                        {
                            Id       = item.Id,
                            Name     = item.Name,
                            IsActive = item.Id == currentItemId
                        });
                    }
                }
                else
                {
                    var category = new SiteMenuItem()
                    {
                        Id   = 0,
                        Name = group.Key
                    };
                    foreach (var item in group)
                    {
                        category.Children.Add(new SiteMenuItem()
                        {
                            Id       = item.Id,
                            Name     = item.Name,
                            IsActive = item.Id == currentItemId
                        });
                    }
                    category.IsActive = category.Children.Any(x => x.IsActive);
                    menuItems.Add(category);
                }
            }
            menuItems = menuItems.OrderBy(x => x.Children.Count == 0 ? 0 : 1).ThenBy(x => x.Name).ToList();
            return(menuItems);
        }