feat: add new input processors (readline), add new figlet font

AnchorCli.csproj

@@ -19,6 +19,10 @@
     <PublishAot>false</PublishAot>
   </PropertyGroup>
 
+  <ItemGroup>
+    <EmbeddedResource Include="Assets\3d.flf" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.AI" Version="10.3.0" />
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="10.3.0" />

Assets/3d.flf

@@ -0,0 +1,818 @@
+flf2a$ 8 8 20 -1 1
+3d font created by xero <x@xero.nu>
+$$@
+$$@
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+@@

InputProcessor.cs

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+using Spectre.Console;
+
+namespace AnchorCli
+{
+    internal class InputProcessor
+    {
+        private static void DisplayText(int left, string buffer, int index = -1, string placeholder = "", int viewportOffset = 0)
+        {
+            Console.CursorLeft = left;
+
+            if (buffer.Length == 0 && index == 0)
+            {
+                AnsiConsole.Markup($"[grey dim]{placeholder}{new string(' ', Console.WindowWidth - 1 - left - placeholder.Length)}[/]");
+                return;
+            }
+
+            var visibleWidth = Console.WindowWidth - left - 1;
+            var displayStart = Math.Min(viewportOffset, Math.Max(0, buffer.Length - 1));
+            var displayEnd = Math.Min(displayStart + visibleWidth, buffer.Length);
+            var displayBuffer = string.Concat(buffer.AsSpan(displayStart, displayEnd - displayStart), " ");
+
+            for (var i = 0; i < displayBuffer.Length; i++)
+            {
+                var actualIndex = displayStart + i;
+                if (index != -1 && actualIndex == index)
+                {
+                    Console.ForegroundColor = ConsoleColor.Black;
+                    Console.BackgroundColor = ConsoleColor.White;
+                }
+
+                Console.Write(displayBuffer[i]);
+
+                if (index != -1 && actualIndex == index)
+                    Console.ResetColor();
+            }
+
+            // Fill remaining space with spaces
+            var remainingSpaces = visibleWidth - displayBuffer.Length;
+            if (remainingSpaces > 0)
+                Console.Write(new string(' ', remainingSpaces));
+        }
+
+        public static string ReadLine(string placeholder = "")
+        {
+            Console.CursorVisible = false;
+            var buffer = string.Empty;
+            var index = 0;
+            var viewportOffset = 0;
+            var left = Console.CursorLeft;
+
+            DisplayText(left, buffer, index, placeholder, viewportOffset);
+
+            while (true)
+            {
+                var inputKey = Console.ReadKey(intercept: true);
+                switch (inputKey)
+                {
+                    case { Key: ConsoleKey.Enter } when buffer.Length > 0:
+                        DisplayText(left, buffer);
+                        Console.WriteLine();
+                        return buffer;
+
+                    case { Key: ConsoleKey.Backspace } when index > 0:
+                        index--;
+                        buffer = buffer.Remove(index, 1);
+                        break;
+
+                    case { Key: ConsoleKey.Delete } when index < buffer.Length:
+                        buffer = buffer.Remove(index, 1);
+                        break;
+
+                    case { Key: ConsoleKey.LeftArrow, Modifiers: ConsoleModifiers.Control }:
+                        while (index > 0 && buffer[index - 1] == ' ')
+                            index--;
+                        while (index > 0 && buffer[index - 1] != ' ')
+                            index--;
+                        break;
+
+                    case { Key: ConsoleKey.RightArrow, Modifiers: ConsoleModifiers.Control }:
+                        while (index < buffer.Length && buffer[index] == ' ')
+                            index++;
+                        while (index < buffer.Length && buffer[index] != ' ')
+                            index++;
+                        break;
+
+                    case { Key: ConsoleKey.LeftArrow } when index > 0:
+                        index--;
+                        break;
+
+                    case { Key: ConsoleKey.RightArrow } when index < buffer.Length:
+                        index++;
+                        break;
+
+                    case { Key: ConsoleKey.W, Modifiers: ConsoleModifiers.Control } when index > 0:
+                        var deleteStart = index;
+                        while (deleteStart > 0 && buffer[deleteStart - 1] == ' ')
+                            deleteStart--;
+                        while (deleteStart > 0 && buffer[deleteStart - 1] != ' ')
+                            deleteStart--;
+                        var charsToDelete = index - deleteStart;
+                        buffer = buffer.Remove(deleteStart, charsToDelete);
+                        index = deleteStart;
+                        break;
+
+                    default:
+                        var keyChar = inputKey.KeyChar;
+                        if (!(char.IsLetterOrDigit(keyChar) || char.IsWhiteSpace(keyChar) || char.IsPunctuation(keyChar) || char.IsSymbol(keyChar)))
+                            break;
+
+                        buffer = buffer.Insert(index, inputKey.KeyChar.ToString());
+                        index++;
+                        break;
+                }
+                // Adjust viewport for scrolling
+                var visibleWidth = Console.WindowWidth - left - 1;
+                if (index < viewportOffset)
+                    viewportOffset = index;
+                else if (index >= viewportOffset + visibleWidth)
+                    viewportOffset = index - visibleWidth + 1;
+
+                DisplayText(left, buffer, index, placeholder, viewportOffset);
+            }
+        }
+    }
+}

Program.cs

@@ -9,6 +9,9 @@ using AnchorCli.Commands;
 using AnchorCli.OpenRouter;
 using Spectre.Console;
 
+Console.InputEncoding = System.Text.Encoding.UTF8;
+Console.OutputEncoding = System.Text.Encoding.UTF8;
+
 // ── Setup subcommand ─────────────────────────────────────────────────────
 if (args.Length > 0 && args[0].Equals("setup", StringComparison.OrdinalIgnoreCase))
 {
@@ -53,9 +56,21 @@ if (ProviderFactory.IsOpenRouter(endpoint))
 
 
 // ── Pretty header ───────────────────────────────────────────────────────
-AnsiConsole.Write(
-    new FigletText("anchor")
-        .Color(Color.CornflowerBlue));
+var fontStream = Assembly.GetExecutingAssembly().GetManifestResourceStream("AnchorCli.Assets.3d.flf");
+if (fontStream != null)
+{
+    var font = FigletFont.Load(fontStream);
+    AnsiConsole.Write(
+        new FigletText(font, "anchor")
+            .Color(Color.CornflowerBlue));
+}
+else
+{
+    AnsiConsole.Write(
+        new FigletText("anchor")
+            .Color(Color.CornflowerBlue));
+}
+
 
 var version = Assembly.GetExecutingAssembly().GetName().Version?.ToString() ?? "unknown";
 
@@ -81,12 +96,12 @@ infoTable.AddRow("[grey]Version[/]", $"[magenta]{version}[/]");
 
 if (modelInfo?.Pricing != null && tokenTracker != null)
 
-    {
-        var inM = tokenTracker.InputPrice * 1_000_000m;
-        var outM = tokenTracker.OutputPrice * 1_000_000m;
-        infoTable.AddRow("[grey]Pricing[/]",
-            $"[yellow]${inM:F2}[/][dim]/M in[/]  [yellow]${outM:F2}[/][dim]/M out[/]");
-    }
+{
+    var inM = tokenTracker.InputPrice * 1_000_000m;
+    var outM = tokenTracker.OutputPrice * 1_000_000m;
+    infoTable.AddRow("[grey]Pricing[/]",
+        $"[yellow]${inM:F2}[/][dim]/M in[/]  [yellow]${outM:F2}[/][dim]/M out[/]");
+}
 if (modelInfo != null)
 {
     infoTable.AddRow("[grey]Context[/]",
@@ -116,7 +131,7 @@ void ToolLog(string message)
     lock (consoleLock)
     {
         Console.Write("\r" + new string(' ', 40) + "\r");
-        AnsiConsole.MarkupLine($"[dim grey]  ● {Markup.Escape(message)}[/]");
+        AnsiConsole.MarkupLine($"[dim grey]{Markup.Escape(message)}[/]");
     }
 }
 

ReplLoop.cs

@@ -22,7 +22,6 @@ internal sealed class ReplLoop
 
     public async Task RunAsync()
     {
-        AnsiConsole.MarkupLine("[dim]Type your message, or use [bold]/help[/] to see commands.[/]");
         AnsiConsole.MarkupLine("[dim]Press [bold]Ctrl+C[/] to cancel the current response.[/]");
         AnsiConsole.WriteLine();
 
@@ -36,7 +35,8 @@ internal sealed class ReplLoop
 
         while (true)
         {
-            string input = ReadLine.Read("❯ ");
+            AnsiConsole.Markup("[grey]❯ [/]");
+            string input = InputProcessor.ReadLine("Type your message, or use [bold]/help[/] to see commands.");
 
             if (string.IsNullOrWhiteSpace(input)) continue;
 
@@ -188,7 +188,6 @@ internal sealed class ReplLoop
                 }
 
                 AnsiConsole.Write(new Rule().RuleStyle(Style.Parse("grey dim")));
-                AnsiConsole.WriteLine();
 
                 _session.History.Add(new ChatMessage(ChatRole.Assistant, fullResponse));