Added profile, provider, and workspace preselection to chat templates (#1099)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Components/WorkspaceNameField.razor.cs

@@ -0,0 +1,107 @@
+using Microsoft.AspNetCore.Components;
+
+namespace AIStudio.Components;
+
+/// <summary>
+/// Names a workspace by its name: an existing one to pick from, or a new name to type.
+/// </summary>
+/// <remarks>
+/// Assistant chat launchers and chat templates both name their workspace this way, because a
+/// workspace has an ID of its own on every computer, and both create it when it does not exist
+/// yet. The field offers the existing workspaces only as a shortcut; the name it hands out is
+/// whatever the text field says. All texts come from the form around it, which knows what the
+/// name is used for.
+/// </remarks>
+public partial class WorkspaceNameField : MSGComponentBase
+{
+    /// <summary>
+    /// The name of the workspace. An empty name is up to the form around the field, e.g., a
+    /// disappearing chat for an assistant chat launcher.
+    /// </summary>
+    [Parameter]
+    public string WorkspaceName { get; set; } = string.Empty;
+
+    [Parameter]
+    public EventCallback<string> WorkspaceNameChanged { get; set; }
+
+    /// <summary>
+    /// The label of the selection of existing workspaces.
+    /// </summary>
+    [Parameter]
+    public string SelectLabel { get; set; } = string.Empty;
+
+    /// <summary>
+    /// The label of the text field for the name.
+    /// </summary>
+    [Parameter]
+    public string Label { get; set; } = string.Empty;
+
+    [Parameter]
+    public string HelperText { get; set; } = string.Empty;
+
+    [Parameter]
+    public string AdornmentIcon { get; set; } = Icons.Material.Filled.CreateNewFolder;
+
+    [Parameter]
+    public Size AdornmentIconSize { get; set; } = Size.Medium;
+
+    /// <summary>
+    /// The validation of the name, or null for none.
+    /// </summary>
+    [Parameter]
+    public Func<string, string?>? Validation { get; set; }
+
+    /// <summary>
+    /// Whether every keystroke counts as a change, e.g., so that a validation follows the typing.
+    /// </summary>
+    [Parameter]
+    public bool Immediate { get; set; }
+
+    /// <summary>
+    /// Shows the name without letting the user change it. The selection of existing workspaces
+    /// is left out then, since picking from it would change the name.
+    /// </summary>
+    [Parameter]
+    public bool ReadOnly { get; set; }
+
+    [Parameter]
+    public string SelectClass { get; set; } = "mb-3 rounded-lg";
+
+    [Parameter]
+    public string TextFieldClass { get; set; } = "mb-3";
+
+    private static readonly Dictionary<string, object?> SPELLCHECK_ATTRIBUTES = new();
+
+    private IReadOnlyList<WorkspaceTreeWorkspace> availableWorkspaces = [];
+
+    #region Overrides of MSGComponentBase
+
+    protected override async Task OnInitializedAsync()
+    {
+        this.SettingsManager.InjectSpellchecking(SPELLCHECK_ATTRIBUTES);
+        await base.OnInitializedAsync();
+
+        var workspaceSnapshot = await WorkspaceBehaviour.GetOrLoadWorkspaceTreeShellAsync();
+        this.availableWorkspaces = workspaceSnapshot.Workspaces;
+    }
+
+    #endregion
+
+    //
+    // Picking an existing workspace fills the name field. Clearing the select must not wipe a name
+    // the user typed, though, so an empty selection is ignored:
+    //
+    private async Task SelectExistingWorkspace(string workspaceName)
+    {
+        if (string.IsNullOrWhiteSpace(workspaceName))
+            return;
+
+        await this.SetWorkspaceName(workspaceName);
+    }
+
+    private async Task SetWorkspaceName(string workspaceName)
+    {
+        this.WorkspaceName = workspaceName;
+        await this.WorkspaceNameChanged.InvokeAsync(workspaceName);
+    }
+}