refactor: apply Single Responsibility Principle to Program.cs and ReplLoop.cs

extracted responsibilities from Program.cs (208→46 lines) and ReplLoop.cs (274→174 lines) into focused service classes: HeaderRenderer, SessionManager, ApplicationStartup, ResponseStreamer, SpinnerService, UsageDisplayer, and ContextCompactionService. Each class now has a single, well-defined responsibility, improving testability and maintainability.
2026-03-11 16:59:06 +01:00
parent ccfa7e1b9d
commit 1e943e6566
10 changed files with 791 additions and 408 deletions
--- a/HeaderRenderer.cs
+++ b/HeaderRenderer.cs
@@ -0,0 +1,110 @@
+using System.Reflection;
+using Spectre.Console;
+using AnchorCli.OpenRouter;
+
+namespace AnchorCli;
+
+/// <summary>
+/// Renders the application header, including ASCII art logo and configuration info table.
+/// </summary>
+internal sealed class HeaderRenderer
+{
+    private readonly string _model;
+    private readonly string _endpoint;
+    private readonly string _providerName;
+    private readonly ModelInfo? _modelInfo;
+    private readonly TokenTracker? _tokenTracker;
+
+    public HeaderRenderer(
+        string model,
+        string endpoint,
+        string providerName,
+        ModelInfo? modelInfo = null,
+        TokenTracker? tokenTracker = null)
+    {
+        _model = model;
+        _endpoint = endpoint;
+        _providerName = providerName;
+        _modelInfo = modelInfo;
+        _tokenTracker = tokenTracker;
+    }
+
+    /// <summary>
+    /// Renders the full header including logo, subtitle, and info table.
+    /// </summary>
+    public void Render()
+    {
+        RenderLogo();
+        RenderSubtitle();
+        RenderInfoTable();
+    }
+
+    /// <summary>
+    /// Renders the ASCII art logo.
+    /// </summary>
+    public void RenderLogo()
+    {
+        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));
+        }
+    }
+
+    /// <summary>
+    /// Renders the subtitle rule.
+    /// </summary>
+    public void RenderSubtitle()
+    {
+        AnsiConsole.Write(
+            new Rule("[dim]AI-powered coding assistant[/]")
+                .RuleStyle(Style.Parse("cornflowerblue dim"))
+                .LeftJustified());
+        AnsiConsole.WriteLine();
+    }
+
+    /// <summary>
+    /// Renders the configuration info table.
+    /// </summary>
+    public void RenderInfoTable()
+    {
+        var version = Assembly.GetExecutingAssembly().GetName().Version?.ToString() ?? "unknown";
+
+        var table = new Table()
+            .Border(TableBorder.Rounded)
+            .BorderColor(Color.Grey)
+            .AddColumn(new TableColumn("[dim]Setting[/]").NoWrap())
+            .AddColumn(new TableColumn("[dim]Value[/]"));
+
+        table.AddRow("[grey]Model[/]", $"[cyan]{Markup.Escape(_modelInfo?.Name ?? _model)}[/]");
+        table.AddRow("[grey]Provider[/]", $"[blue]{_providerName}[/]");
+        table.AddRow("[grey]Endpoint[/]", $"[dim]{_endpoint}[/]");
+        table.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;
+            table.AddRow("[grey]Pricing[/]",
+                $"[yellow]${inM:F2}[/][dim]/M in[/]  [yellow]${outM:F2}[/][dim]/M out[/]");
+        }
+
+        if (_modelInfo != null)
+        {
+            table.AddRow("[grey]Context[/]",
+                $"[dim]{_modelInfo.ContextLength:N0} tokens[/]");
+        }
+
+        AnsiConsole.Write(table);
+        AnsiConsole.WriteLine();
+    }
+}