Update app.py

app.py

@@ -104,12 +104,27 @@ def analyze_and_update_single_repo(repo_id: str) -> Tuple[str, str, pd.DataFrame
 
 # --- NEW: Helper for Chat History Conversion ---
 def convert_messages_to_tuples(history: List[Dict[str, str]]) -> List[Tuple[str, str]]:
-    """Converts Gradio's 'messages' format to the old 'tuple' format for compatibility."""
+    """
+    Converts Gradio's 'messages' format to the old 'tuple' format for compatibility.
+    This robust version correctly handles histories that start with an assistant message.
+    """
     tuple_history = []
-    # Assumes a strict user-assistant-user-assistant turn structure.
-    for i in range(0, len(history), 2):
-        if i + 1 < len(history) and history[i]['role'] == 'user' and history[i+1]['role'] == 'assistant':
-            tuple_history.append((history[i]['content'], history[i+1]['content']))
+    # Find the start of the actual conversation (the first user message)
+    start_index = 0
+    for i, msg in enumerate(history):
+        if msg['role'] == 'user':
+            start_index = i
+            break
+    
+    # Group the rest of the messages into (user, assistant) pairs
+    user_msg_content = None
+    for i in range(start_index, len(history)):
+        if history[i]['role'] == 'user':
+            user_msg_content = history[i]['content']
+        elif history[i]['role'] == 'assistant' and user_msg_content is not None:
+            tuple_history.append((user_msg_content, history[i]['content']))
+            user_msg_content = None # Reset to find the next pair
+            
     return tuple_history
 
 # --- Gradio UI ---