@inject IHttpContextAccessor HttpContextAccessor
@inject IDataContextFactory<SeniorDataContext> dbFactory

@{
    var session = HttpContextAccessor.HttpContext.Session;
    string search = HttpContextAccessor.HttpContext.Request.Query["q"];
    string username = session.GetString("username");

    if (username != null)
    {
        var isDoc = session.GetString("role").Equals("doctor");
        var Menu = new List<IMenuItem>();
        Menu.Add(new MenuItem("Profilo", "/"));
        Menu.Add(new MenuItem("Dati personali", "/user/" + username));
        if (isDoc)
        {
            var db = dbFactory.Create();
            var patients = (from p in db.Patients
                            where p.Doctor.Equals(username)
                            join u in db.Users on p.Username equals u.Username
                            select new { Username = p.Username, Name = u.Name + " " + u.LastName }).ToArray();
            var sub = new SubMenu() { Text = "Pazienti", Items = new List<MenuItem>() };
            foreach (var p in patients)
            {
                sub.Items.Add(new MenuItem(p.Name, "/user/" + p.Username));
            }
            Menu.Add(sub);
        }
        else
        {
            var db = dbFactory.Create();
            var patient = (from p in db.Patients
                           where p.Username.Equals(username)
                           select p).FirstOrDefault();
            Menu.Add(new MenuItem("Invia un messaggio al dottore", "/Message/" + patient.Doctor));
        }
        <aside class="main-sidebar">
            <!-- sidebar: style can be found in sidebar.less -->
            <section class="sidebar">
                @if (isDoc)
                {
                    <!-- Sidebar user panel (optional) -->
                    <!-- search form (Optional) -->
                    <form action="#" method="get" class="sidebar-form">
                        <div class="input-group">
                            <input type="text" name="q" class="form-control" placeholder="Search..." , value="@search">
                            <span class="input-group-btn">
                                <button type="submit" name="search" id="search-btn" class="btn btn-flat">
                                    <i class="fa fa-search"></i>
                                </button>
                            </span>
                        </div>
                    </form>
                    <!-- /.search form -->
                    <!-- Sidebar Menu -->
                }
                <div>
                    <ul class="sidebar-menu" data-widget="tree">
                        @foreach (var menuItem in Menu)
                        {
                            switch (menuItem)
                            {
                                case MenuItem single:
                                    <li>
                                        <a href="@single.HRef">@single.Text</a>
                                    </li>
                                    break;
                                case SubMenu multi:
                                    <li class="treeview @if(search != null) {<text>menu-open</text>}">
                                        <a href="#">
                                            <i class="fa fa-link"></i><span>@multi.Text</span>
                                            <span class="pull-right-container">
                                                <i class="fa fa-angle-left pull-right"></i>
                                            </span>
                                        </a>
                                        <ul class="treeview-menu" @if (search != null) { <text> style="display: block;" </text> }>
                                            @foreach (MenuItem item in multi.Items)
                                            {
                                                <li>
                                                    @{
                                                        var text = item.Text;
                                                        var bg = "";
                                                        if (search != null && item.Text.StartsWith(search))
                                                        {
                                                            bg = "bg-aqua";
                                                            text = item.Text.Replace(search, "<em>" + search + "</em>");
                                                        }
                                                    }
                                                    <a href="@item.HRef" class="@bg">
                                                        @Html.Raw(text)
                                                    </a>
                                                </li>
                                            }
                                        </ul>
                                    </li>
                                    break;
                            }
                        }
                    </ul>
                </div>
                <!-- /.sidebar-menu -->
            </section>
            <!-- /.sidebar -->
        </aside>
        @if (search != null)
        {
            <script>
                $("body").removeClass("sidebar-collapse");
            </script>
        }
    }
}