Code(WEB::AssistantsDrawer): Add AssistantsDrawer component for selec…

…ting or managing assistants

src/Client/StellarChat.Client.Web/Components/AssistantsDrawer.razor

@@ -0,0 +1,24 @@
+<MudDrawerContainer Class="mud-height-full">
+    <MudDrawer @bind-Open="IsOpen" Anchor="Anchor.Left" DisableOverlay="true" Elevation="8">
+        <MudDrawerHeader Class="pr-2 pt-1">
+            <MudText Typo="Typo.h6" Class="mt-2">Select or Manage Assistants</MudText>
+            <MudSpacer />
+            <MudIconButton OnClick="CloseDrawer" Icon="@Icons.Material.Filled.Close" Color="Color.Primary" />
+        </MudDrawerHeader>
+    </MudDrawer>
+</MudDrawerContainer>
+
+@code 
+{
+    [Parameter]
+    public bool IsOpen { get; set; }
+
+    [Parameter]
+    public EventCallback<bool> IsOpenChanged { get; set; }
+
+    private void CloseDrawer()
+    {
+        IsOpen = false;
+        IsOpenChanged.InvokeAsync(IsOpen);
+    }
+}

src/Client/StellarChat.Client.Web/Layout/MainLayout.razor

@@ -15,7 +15,8 @@
             <MudToggleIconButton Toggled="@_IsDarkModeEnabled" ToggledChanged="ToggleDarkMode" Icon="@Icons.Material.Filled.LightMode" Color="Color.Dark" ToggledIcon="@Icons.Material.Outlined.DarkMode" />
         </MudAppBar>
 
-        <Drawer IsDrawerOpen="@_isDrawerOpen" />
+        <Drawer IsDrawerOpen="@_isDrawerOpen" OnAvatarClick="ToggleAssistantsDrawer" />
+        <AssistantsDrawer IsOpen="_isAssistantsDrawerOpen" IsOpenChanged="HandleAssistantsDrawerStateChanged" />
         <MudMainContent>
             <CustomErrorBoundary>
                 <ChildContent>
@@ -38,6 +39,8 @@
 
     private bool _IsDarkModeEnabled = false;
     private bool _isDrawerOpen = true;
+    private bool _isAssistantsDrawerOpen = false;
+
     private string BackgroundColorStyle => $"background-color: {(_IsDarkModeEnabled ? "#27272f" : "#e7e5e4")};";
 
     protected override async Task OnInitializedAsync()
@@ -59,6 +62,10 @@
 
     private void ToggleDrawer() => _isDrawerOpen = !_isDrawerOpen;
 
+    private void ToggleAssistantsDrawer() => _isAssistantsDrawerOpen = !_isAssistantsDrawerOpen;
+
+    private void HandleAssistantsDrawerStateChanged(bool isOpen) => _isAssistantsDrawerOpen = isOpen;
+
     private void ShowErrorSnackbar(string message)
     {
         Snackbar.Configuration.PositionClass = Defaults.Classes.Position.TopRight;