refactor: streamline user ID extraction and enhance error handling in create_submit_tab function for improved user experience

app.py

@@ -597,11 +597,13 @@ def create_submit_tab(tab_id: int, demo: gr.Blocks):
             if not current_user_display:
                 return styled_error("Please log in before submitting.")
             user_id_match = re.match(r"\*\*(.+)\*\*", current_user_display)
-            if user_id_match:
-                user_id = user_id_match.group(1)
-                if not user_id:
-                    msg = f"Unable to get user ID ({current_user_display!r}). Please try logging in again."
-                    return styled_error(msg)
+            if not user_id_match:
+                msg = f"Unable to get user ID ({current_user_display!r}). Please try logging in again."
+                return styled_error(msg)
+            user_id = user_id_match.group(1)
+            if not user_id:
+                msg = f"Unable to get user ID ({current_user_display!r}). Please try logging in again."
+                return styled_error(msg)
 
             # If JSON is provided, use it; otherwise build from form
             if json_str and json_str.strip():
@@ -615,7 +617,7 @@ def create_submit_tab(tab_id: int, demo: gr.Blocks):
                 # Build JSON from form
                 # benchmark_values contains pairs of (checkbox_value, result_value) for each benchmark
                 benchmarks_list = get_benchmarks()
-                if len(benchmark_values) != len(benchmarks_list):
+                if len(benchmark_values) != len(benchmarks_list) * 2:
                     print(
                         dedent(f"""
                         Invalid benchmark form data. Please check your inputs.