Update app.py

app.py

@@ -196,42 +196,23 @@ def chat_with_assistant(user_input, chat_history, bot_id, workspace_id, temperat
     # Process chat history into the format expected by the API
     messages = []
     system_prompt = ""
+
     for msg in chat_history:
         if msg["role"] == "system":
             system_prompt = msg["content"]
         elif msg["role"] in ["user", "assistant"]:
-            # Handle multipart messages (for images)
+            # Pass multipart messages directly without modifying their structure
             if "type" in msg and msg["type"] == "multipart" and "content" in msg:
-                content_array = []
-                for part in msg["content"]:
-                    if part["type"] == "text":
-                        content_array.append({
-                            "type": "text",
-                            "text": part["text"]
-                        })
-                    elif part["type"] == "image":
-                        content_array.append({
-                            "type": "image_url",
-                            "image_url": {
-                                "url": part["url"]
-                            }
-                        })
-                messages.append({
-                    "role": msg["role"],
-                    "content": content_array
-                })
+                messages.append(msg)  # Keep the original multipart structure
             # Handle regular text messages
             else:
-                # For text messages, content must be a string without a type field
                 messages.append({
                     "role": msg["role"],
                     "content": msg["content"]
                 })
 
     # Add the latest user input if not already in chat history
-    # Only add if it's a simple text input (not multipart)
-    if user_input and isinstance(user_input, str) and (not messages or messages[-1]["role"] != "user" or
-                                                       (isinstance(messages[-1]["content"], str) and messages[-1]["content"] != user_input)):
+    if user_input and isinstance(user_input, str) and (not messages or messages[-1]["role"] != "user" or messages[-1]["content"] != user_input):
         messages.append({
             "role": "user",
             "content": user_input