103 lines
3.3 KiB
C#
103 lines
3.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Http;
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using System.Text.Json;
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using System.Threading.Tasks;
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using Gott.Models;
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using Gott.Services;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Routing;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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namespace Gott.Endpoints;
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public static class ChatEndpoint
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{
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public static void MapChatEndpoint(this IEndpointRouteBuilder app)
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{
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app.MapPost("/api/chat", HandleChat);
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}
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private static async Task HandleChat(HttpRequest req, HttpResponse res, IHttpClientFactory httpFactory, IConfiguration config, ToolService toolService, DatabaseService db)
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{
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var body = await JsonSerializer.DeserializeAsync<ChatRequest>(req.Body);
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if (body == null || body.Messages == null || body.Messages.Count == 0)
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{
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res.StatusCode = 400;
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await res.WriteAsJsonAsync(new { error = "messages required" });
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return;
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}
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var token = config["AnthropicToken"];
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if (string.IsNullOrEmpty(token))
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{
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res.StatusCode = 500;
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await res.WriteAsJsonAsync(new { error = "AnthropicToken not configured" });
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return;
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}
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var modelId = body.Model switch
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{
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"opus" => "claude-opus-4-6",
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"sonnet" => "claude-sonnet-4-6",
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_ => "claude-sonnet-4-6"
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};
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res.Headers["Content-Type"] = "text/event-stream";
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res.Headers["Cache-Control"] = "no-cache";
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res.Headers["Connection"] = "keep-alive";
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var sessionId = body.SessionId;
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if (string.IsNullOrEmpty(sessionId))
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{
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res.StatusCode = 400;
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await res.WriteAsJsonAsync(new { error = "sessionId required" });
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return;
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}
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var chainId = Guid.NewGuid().ToString("N");
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await db.CreateChain(new ChainRecord
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{
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ChainId = chainId,
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SessionId = sessionId,
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Model = modelId,
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SystemPrompt = body.SystemPrompt
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});
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// Session-Timestamp aktualisieren
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await db.UpdateSessionTimestamp(sessionId);
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var messages = new List<object>();
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foreach (var msg in body.Messages)
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messages.Add(new { role = msg.Role, content = msg.Content });
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// Nur die letzte User-Message speichern (= die neue)
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var lastUserMsg = body.Messages.LastOrDefault(m => m.Role == "user");
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if (lastUserMsg != null)
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{
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await db.SaveMessage(new MessageRecord
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{
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ChainId = chainId,
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Iteration = 0,
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Role = "user",
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Type = "text",
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Content = lastUserMsg.Content
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});
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}
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var systemPrompt = new List<object>
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{
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new { type = "text", text = "You are Claude Code, Anthropic's official CLI for Claude." }
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};
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if (!string.IsNullOrWhiteSpace(body.SystemPrompt))
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systemPrompt.Add(new { type = "text", text = body.SystemPrompt });
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var anthropic = new AnthropicService(httpFactory, token, toolService, db);
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await anthropic.StreamChat(res, modelId, systemPrompt, messages, chainId);
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}
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}
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