From 1035066a39e0958991694fafb7c212ebce2c9408 Mon Sep 17 00:00:00 2001
From: Meleki <meleki@gott.local>
Date: Tue, 7 Apr 2026 07:13:19 +0200
Subject: [PATCH] feat: Python-Befehl auto-detect (python3/python/py) mit
 Warnung bei fehlendem Python

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 Services/AnthropicService.Cli.cs | 55 +++++++++++++++++++++++++++++++-
 wwwroot/js/chat.js               |  1 +
 2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/Services/AnthropicService.Cli.cs b/Services/AnthropicService.Cli.cs
index eaa4f7e..281a3c3 100644
--- a/Services/AnthropicService.Cli.cs
+++ b/Services/AnthropicService.Cli.cs
@@ -14,6 +14,9 @@ namespace Gott.Services;
 
 public partial class AnthropicService
 {
+    private static string _cachedPythonCmd;
+    private static bool _pythonCmdChecked;
+
     /// <summary>
     /// Streaming-Chat über die Claude CLI.
     /// Die CLI verwendet das lokale Token aus ~/.claude/.credentials.json.
@@ -64,6 +67,10 @@ public partial class AnthropicService
             var hasRemote = remoteMgr != null && !string.IsNullOrEmpty(sessionId) && remoteMgr.GetBySessionId(sessionId) != null;
             mcpConfigPath = GenerateMcpConfig(sessionId, agentId, hasRemote, unityMcpUrl, unityMcpToken);
 
+            // Python-Verfügbarkeit prüfen und ggf. warnen
+            if (FindPythonCommand() == null)
+                await SseHelper.TryWriteSse(response, "warning", new { message = "⚠ Python wurde nicht gefunden (python3/python/py). MCP-Tools (Remote-Execute, Memory, etc.) sind nicht verfügbar." }, sseCt);
+
             // System-Prompt als Text extrahieren
             var systemText = new StringBuilder();
             if (systemPrompt != null)
@@ -515,6 +522,47 @@ public partial class AnthropicService
         return sb.ToString().Trim();
     }
 
+    /// <summary>
+    /// Sucht einen verfügbaren Python-Befehl (python3, python, py).
+    /// Gibt null zurück, wenn keiner gefunden wird.
+    /// </summary>
+    private static string FindPythonCommand()
+    {
+        if (_pythonCmdChecked) return _cachedPythonCmd;
+
+        foreach (var cmd in new[] { "python3", "python", "py" })
+        {
+            try
+            {
+                var psi = new System.Diagnostics.ProcessStartInfo
+                {
+                    FileName = cmd,
+                    Arguments = "--version",
+                    RedirectStandardOutput = true,
+                    RedirectStandardError = true,
+                    UseShellExecute = false,
+                    CreateNoWindow = true
+                };
+                using var proc = System.Diagnostics.Process.Start(psi);
+                if (proc != null)
+                {
+                    proc.WaitForExit(3000);
+                    if (proc.ExitCode == 0)
+                    {
+                        _cachedPythonCmd = cmd;
+                        _pythonCmdChecked = true;
+                        Console.WriteLine($"[MCP] Python gefunden: {cmd}");
+                        return cmd;
+                    }
+                }
+            }
+            catch { /* Command not found – try next */ }
+        }
+        _pythonCmdChecked = true;
+        _cachedPythonCmd = null;
+        return null;
+    }
+
     /// <summary>
     /// Generiert eine temporäre MCP-Config-Datei für die Claude CLI.
     /// Enthält den MCP-Server für remote_execute.
@@ -542,16 +590,21 @@ public partial class AnthropicService
             ["GOTT_HAS_REMOTE"] = hasRemote ? "true" : "false"
         };
 
+        var pythonCmd = FindPythonCommand();
+
         var mcpServers = new Dictionary<string, object>
         {
             ["gott-remote"] = new
             {
-                command = "python3",
+                command = pythonCmd ?? "python3",
                 args = new[] { scriptPath },
                 env
             }
         };
 
+        if (pythonCmd == null)
+            Console.WriteLine("[MCP] ⚠ Python nicht gefunden (python3/python/py) – MCP-Tools werden nicht funktionieren!");
+
         // Unity MCP Server (pro Session konfigurierbar)
         // Claude CLI erfordert expliziten "type" – "http" für streamableHttp, "sse" für SSE
         if (!string.IsNullOrEmpty(unityMcpUrl))
diff --git a/wwwroot/js/chat.js b/wwwroot/js/chat.js
index 32893d2..2a6de08 100644
--- a/wwwroot/js/chat.js
+++ b/wwwroot/js/chat.js
@@ -131,6 +131,7 @@ function handleStreamEvent(eventType, data) {
       addAutoContextBubble(data.context);
       break;
 
+    case 'warning':
     case 'info':
       addWarningBubble(data.message, true);
       break;