Backend Refactoring: Models, Services, Endpoints aufgeteilt

Endpoints/ChatEndpoint.cs

@@ -0,0 +1,65 @@
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Gott.Models;
+using Gott.Services;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Routing;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Gott.Endpoints;
+
+public static class ChatEndpoint
+{
+    public static void MapChatEndpoint(this IEndpointRouteBuilder app)
+    {
+        app.MapPost("/api/chat", HandleChat);
+    }
+
+    private static async Task HandleChat(HttpRequest req, HttpResponse res, IHttpClientFactory httpFactory, IConfiguration config, ToolService toolService)
+    {
+        var body = await JsonSerializer.DeserializeAsync<ChatRequest>(req.Body);
+        if (body == null || body.Messages == null || body.Messages.Count == 0)
+        {
+            res.StatusCode = 400;
+            await res.WriteAsJsonAsync(new { error = "messages required" });
+            return;
+        }
+
+        var token = config["AnthropicToken"];
+        if (string.IsNullOrEmpty(token))
+        {
+            res.StatusCode = 500;
+            await res.WriteAsJsonAsync(new { error = "AnthropicToken not configured" });
+            return;
+        }
+
+        var modelId = body.Model switch
+        {
+            "opus" => "claude-opus-4-6",
+            "sonnet" => "claude-sonnet-4-6",
+            _ => "claude-sonnet-4-6"
+        };
+
+        res.Headers["Content-Type"] = "text/event-stream";
+        res.Headers["Cache-Control"] = "no-cache";
+        res.Headers["Connection"] = "keep-alive";
+
+        var messages = new List<object>();
+        foreach (var msg in body.Messages)
+            messages.Add(new { role = msg.Role, content = msg.Content });
+
+        var systemPrompt = new List<object>
+        {
+            new { type = "text", text = "You are Claude Code, Anthropic's official CLI for Claude." }
+        };
+        if (!string.IsNullOrWhiteSpace(body.SystemPrompt))
+            systemPrompt.Add(new { type = "text", text = body.SystemPrompt });
+
+        var anthropic = new AnthropicService(httpFactory, token, toolService);
+        await anthropic.StreamChat(res, modelId, systemPrompt, messages);
+    }
+}