add retriever call

app.py

@@ -97,27 +97,38 @@ def handle_geojson_upload(file):
             gr.update(visible=False)   # results_table
         )
 
-def retrieve_paragraphs(file):
+def retrieve_paragraphs(query):
     """Connect to retriever and retrieve paragraphs"""
     if file is not None:
         try:
             # Initialize WHISP API client
-            client = Client("https://g...content-available-to-author-only...f.space/")
+            client = Client("https://giz-eudr-retriever.hf.space/")
             
             # Call the API with the uploaded file
             result = client.predict(
-                file=handle_file(file.name),
+                query=query,
                 api_name="/retrieve"
             )
             
-            # Convert result to DataFrame
-            df = pd.DataFrame(result['data'], columns=result['headers'])
-            return df
-            
+            return (
+            results,  # Keep formatted statistics for chat
+            gr.update(visible=True),  # Keep status visible
+            gr.update(visible=False)  # Always hide results table
+        )
+
         except Exception as e:
-            print(f"Error retrieving paragraphs: {str(e)}")
-            return None
-    return None
+            error_msg=(f"Error retrieving paragraphs: {str(e)}")
+            return (
+                        error_msg,
+                        gr.update(visible=True),  # upload_status
+                        gr.update(visible=False)  # results_table
+                    )
+    else:
+        return (
+            "",
+            gr.update(visible=False),  # upload_status
+            gr.update(visible=False)   # results_table
+        )
 
 def start_chat(query, history):
     """Start a new chat interaction"""