Refactor backend.py for improved functionality

commit bc3cce45596102921fb4d7b19203b54863550ff3
parent a91290f045a72de724941526ce60db634a05b85e
Author: AMIT DUTTA <amitdutta4255@gmail.com>
Date:   Sun, 11 Jan 2026 18:52:05 +0530

Refactor backend.py for improved functionality
Diffstat:
M backend.py  | 9 ++++++++-

1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/backend.py b/backend.py
@@ -4,7 +4,6 @@ import json
 import subprocess
 import os
 import sys
-import platform
 import threading
 import re
 import importlib.util
@@ -73,6 +72,14 @@ async def handle_client(request):
                     ws.send_json({'type': 'stdout', 'data': char}), 
                     loop
                 )
+            
+            # --- SIGNAL FINISH ---
+            # When stream ends (process exits), tell frontend
+            asyncio.run_coroutine_threadsafe(
+                ws.send_json({'type': 'status', 'msg': 'Program finished'}), 
+                loop
+            )
+
         except Exception:
             pass

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