Update app2.py

app2.py

@@ -645,15 +645,22 @@ def decode_qr_code(image_path: str) -> Optional[str]:
         logger.error(f"QR decoding error: {e}")
         return None
 
-# Also update the datachat_interface function to handle base64 data
+# Ensure this function is defined somewhere in your code
+def datachat_trained(data, query):
+    # Your implementation here
+    return "Response from trained model."
+
+
 def datachat_interface(mode: str, data_source: str, json_input: str, qr_image: str, query: str) -> str:
-    """Interface for DataChat functionality with binary data support"""
     data = None
     if data_source == "JSON Input":
         data = json_input
     elif data_source == "QR Code":
         try:
             decoded_data = decode_qr_code(qr_image)
+            # Handle base64 encoded data...
+        except Exception as e:
+            return f"Invalid QR code data provided: {e}"
             
             # Handle base64 encoded data
             if decoded_data and decoded_data.startswith("base64:"):
@@ -678,14 +685,12 @@ def datachat_interface(mode: str, data_source: str, json_input: str, qr_image: s
             return f"Invalid QR code data provided: {e}"
     else:
         return "No valid data source selected."
-
     if mode == "Trained with Data":
-        return datachat_trained(data, query)
+        return datachat_trained(data, query)  # Ensure this function is defined
     elif mode == "Chat about Data":
-        return datachat_simple(data, query)
+        return datachat_simple(data, query)  # Ensure this function is defined
     else:
         return "Invalid mode selected."
-        
 def create_interface():
     """Create a comprehensive Gradio interface with advanced features"""
     css = """