Add a writer mode

app/MindWork AI Studio/Components/MSGComponentBase.cs

@@ -1,9 +1,14 @@
+using AIStudio.Settings;
+
 using Microsoft.AspNetCore.Components;
 
 namespace AIStudio.Components;
 
 public abstract class MSGComponentBase : ComponentBase, IDisposable, IMessageBusReceiver
 {
+    [Inject]
+    protected SettingsManager SettingsManager { get; init; } = null!;
+
     [Inject]
     protected MessageBus MessageBus { get; init; } = null!;
 

app/MindWork AI Studio/Layout/MainLayout.razor.cs

@@ -103,6 +103,7 @@ protected override async Task OnInitializedAsync()
             new("Home", Icons.Material.Filled.Home, palette.DarkLighten, palette.GrayLight, Routes.HOME, true),
             new("Chat", Icons.Material.Filled.Chat, palette.DarkLighten, palette.GrayLight, Routes.CHAT, false),
             new("Assistants", Icons.Material.Filled.Apps, palette.DarkLighten, palette.GrayLight, Routes.ASSISTANTS, false),
+            new("Writer", Icons.Material.Filled.Create, palette.DarkLighten, palette.GrayLight, Routes.WRITER, false),
             new("Supporters", Icons.Material.Filled.Favorite, palette.Error.Value, "#801a00", Routes.SUPPORTERS, false),
             new("About", Icons.Material.Filled.Info, palette.DarkLighten, palette.GrayLight, Routes.ABOUT, false),
             new("Settings", Icons.Material.Filled.Settings, palette.DarkLighten, palette.GrayLight, Routes.SETTINGS, false),

app/MindWork AI Studio/Pages/Chat.razor.cs

@@ -17,9 +17,6 @@ namespace AIStudio.Pages;
 /// </summary>
 public partial class Chat : MSGComponentBase, IAsyncDisposable
 {
-    [Inject]
-    private SettingsManager SettingsManager { get; init; } = null!;
-
     [Inject]
     private ThreadSafeRandom RNG { get; init; } = null!;
 

app/MindWork AI Studio/Pages/Writer.razor

@@ -0,0 +1,55 @@
+@attribute [Route(Routes.WRITER)]
+@inherits MSGComponentBase
+
+<MudText Typo="Typo.h3" Class="mb-2 mr-3">
+    Writer
+</MudText>
+
+<ProviderSelection @bind-ProviderSettings="@this.providerSettings"/>
+<InnerScrolling HeaderHeight="12.3em">
+    <ChildContent>
+        <MudTextField
+            @ref="@this.textField"
+            T="string"
+            Label="Write your text"
+            @bind-Text="@this.userInput"
+            Immediate="@true"
+            Lines="16"
+            MaxLines="16"
+            Typo="Typo.body1"
+            Variant="Variant.Outlined"
+            InputMode="InputMode.text"
+            FullWidth="@true"
+            OnKeyDown="@this.InputKeyEvent"
+            UserAttributes="@USER_INPUT_ATTRIBUTES"/>
+
+        <MudTextField
+            T="string"
+            Label="Your stage directions"
+            @bind-Text="@this.userDirection"
+            Immediate="@true"
+            Lines="4"
+            MaxLines="4"
+            Typo="Typo.body1"
+            Variant="Variant.Outlined"
+            InputMode="InputMode.text"
+            FullWidth="@true"
+            UserAttributes="@USER_INPUT_ATTRIBUTES"/>
+    </ChildContent>
+    <FooterContent>
+        @if (this.isStreaming)
+        {
+            <MudProgressLinear Color="Color.Primary" Indeterminate="true" Class="mb-6" />
+        }
+        <MudTextField
+            T="string"
+            Label="Suggestion"
+            @bind-Text="@this.suggestion"
+            ReadOnly="@true"
+            Lines="3"
+            Typo="Typo.body1"
+            Variant="Variant.Outlined"
+            FullWidth="@true"
+            UserAttributes="@USER_INPUT_ATTRIBUTES"/>
+    </FooterContent>
+</InnerScrolling>

app/MindWork AI Studio/Pages/Writer.razor.cs

@@ -0,0 +1,177 @@
+using AIStudio.Chat;
+using AIStudio.Components;
+using AIStudio.Provider;
+
+using Microsoft.AspNetCore.Components;
+using Microsoft.AspNetCore.Components.Web;
+
+using Timer = System.Timers.Timer;
+
+namespace AIStudio.Pages;
+
+public partial class Writer : MSGComponentBase, IAsyncDisposable
+{
+    [Inject]
+    private ILogger<Chat> Logger { get; init; } = null!;
+
+    private static readonly Dictionary<string, object?> USER_INPUT_ATTRIBUTES = new();
+    private readonly Timer typeTimer = new(TimeSpan.FromMilliseconds(1_500));
+
+    private MudTextField<string> textField = null!;
+    private AIStudio.Settings.Provider providerSettings;
+    private ChatThread? chatThread;
+    private bool isStreaming;
+    private string userInput = string.Empty;
+    private string userDirection = string.Empty;
+    private string suggestion = string.Empty;
+
+    #region Overrides of ComponentBase
+
+    protected override async Task OnInitializedAsync()
+    {
+        this.ApplyFilters([], []);
+        this.SettingsManager.InjectSpellchecking(USER_INPUT_ATTRIBUTES);
+        this.typeTimer.Elapsed += async (_, _) => await this.InvokeAsync(this.GetSuggestions);
+        this.typeTimer.AutoReset = false;
+
+        await base.OnInitializedAsync();
+    }
+
+    #endregion
+
+    #region Overrides of MSGComponentBase
+
+    public override Task ProcessIncomingMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data) where T : default
+    {
+        return Task.CompletedTask;
+    }
+
+    public override Task<TResult?> ProcessMessageWithResult<TPayload, TResult>(ComponentBase? sendingComponent, Event triggeredEvent, TPayload? data) where TResult : default where TPayload : default
+    {
+        return Task.FromResult(default(TResult));
+    }
+
+    #endregion
+
+    private bool IsProviderSelected => this.providerSettings.UsedLLMProvider != LLMProviders.NONE;
+
+    private async Task InputKeyEvent(KeyboardEventArgs keyEvent)
+    {
+        var key = keyEvent.Code.ToLowerInvariant();
+        var isTab = key is "tab";
+        var isModifier = keyEvent.AltKey || keyEvent.CtrlKey || keyEvent.MetaKey || keyEvent.ShiftKey;
+
+        if (isTab && !isModifier)
+        {
+            await this.textField.FocusAsync();
+            this.AcceptNextWord();
+            return;
+        }
+
+        if (isTab && isModifier)
+        {
+            await this.textField.FocusAsync();
+            this.AcceptEntireSuggestion();
+            return;
+        }
+
+        if(!isModifier)
+        {
+            this.typeTimer.Stop();
+            this.typeTimer.Start();
+        }
+    }
+
+    private async Task GetSuggestions()
+    {
+        if (!this.IsProviderSelected)
+            return;
+
+        this.chatThread ??= new()
+        {
+            WorkspaceId = Guid.Empty,
+            ChatId = Guid.NewGuid(),
+            Name = string.Empty,
+            Seed = 798798,
+            SystemPrompt =  """
+                            You are an assistant who helps with writing documents. You receive a sample
+                            from a document as input. As output, you provide how the begun sentence could
+                            continue. You give exactly one variant, not multiple. If the current sentence
+                            is complete, you provide an empty response. You do not ask questions, and you
+                            do not repeat the task.
+                            """,
+            Blocks = [],
+        };
+
+        var time = DateTimeOffset.Now;
+        this.chatThread.Blocks.Clear();
+        this.chatThread.Blocks.Add(new ContentBlock
+        {
+            Time = time,
+            ContentType = ContentType.TEXT,
+            Role = ChatRole.USER,
+            Content = new ContentText
+            {
+                // We use the maximum 160 characters from the end of the text:
+                Text = this.userInput.Length > 160 ? this.userInput[^160..] : this.userInput,
+            },
+        });
+
+        var aiText = new ContentText
+        {
+            // We have to wait for the remote
+            // for the content stream: 
+            InitialRemoteWait = true,
+        };
+
+        this.chatThread?.Blocks.Add(new ContentBlock
+        {
+            Time = time,
+            ContentType = ContentType.TEXT,
+            Role = ChatRole.AI,
+            Content = aiText,
+        });
+
+        this.isStreaming = true;
+        this.StateHasChanged();
+
+        await aiText.CreateFromProviderAsync(this.providerSettings.CreateProvider(this.Logger), this.SettingsManager, this.providerSettings.Model, this.chatThread);
+        this.suggestion = aiText.Text;
+
+        this.isStreaming = false;
+        this.StateHasChanged();
+    }
+
+    private void AcceptEntireSuggestion()
+    {
+        if(this.userInput.Last() != ' ')
+            this.userInput += ' ';
+
+        this.userInput += this.suggestion;
+        this.suggestion = string.Empty;
+        this.StateHasChanged();
+    }
+
+    private void AcceptNextWord()
+    {
+        var words = this.suggestion.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+        if(words.Length == 0)
+            return;
+
+        if(this.userInput.Last() != ' ')
+            this.userInput += ' ';
+
+        this.userInput += words[0] + ' ';
+        this.suggestion = string.Join(' ', words.Skip(1));
+        this.StateHasChanged();
+    }
+
+    #region Implementation of IAsyncDisposable
+
+    public ValueTask DisposeAsync()
+    {
+        return ValueTask.CompletedTask;
+    }
+
+    #endregion
+}

app/MindWork AI Studio/Routes.razor.cs

@@ -8,6 +8,7 @@ public sealed partial class Routes
     public const string ASSISTANTS = "/assistants";
     public const string SETTINGS = "/settings";
     public const string SUPPORTERS = "/supporters";
+    public const string WRITER = "/writer";
 
     // ReSharper disable InconsistentNaming
     public const string ASSISTANT_TRANSLATION = "/assistant/translation";