chore: Refactor comment posting functionality and improve performance

app.py

@@ -245,11 +245,11 @@ def return_recommendations(
     arxiv_id = parse_arxiv_id_from_paper_url(url)
     recommendations = get_recommendations_from_semantic_scholar(f"ArXiv:{arxiv_id}")
     filtered_recommendations = filter_recommendations(recommendations)
+    formatted_recommendation = format_recommendation_into_markdown(
+        arxiv_id, filtered_recommendations
+    )  # Assign early
 
     if post_to_paper:
-        formatted_recommendation = format_recommendation_into_markdown(
-            arxiv_id, filtered_recommendations
-        )
         comment = format_comment(formatted_recommendation)
 
         # Check if a librarian-bot comment already exists.
@@ -258,27 +258,26 @@ def return_recommendations(
             gr.Info(
                 f"Librarian-bot already commented on this paper. Comment ID: {existing_comment_id}. No further action will be taken."
             )
-            return formatted_recommendation  # Return formatted recommendation without posting.
-
-        # If no existing librarian-bot comment, check if a specific comment_id is provided for replying.
-        if comment_id:
-            comment_status, posted_comment_id = post_comment(
-                url, comment, comment_id, token=HF_TOKEN
-            )
-            if comment_status:
-                log_comments(url, comment)
-                gr.Info(f"Posted reply to comment {posted_comment_id}")
         else:
-            # If no comment_id is provided, post a new comment.
-            comment_status, posted_comment_id = post_comment(
-                url, comment, token=HF_TOKEN
-            )
-            if comment_status:
-                log_comments(url, comment)
-                gr.Info(f"Posted new comment {posted_comment_id}")
+            # If no existing librarian-bot comment, check if a specific comment_id is provided for replying.
+            if comment_id:
+                comment_status, posted_comment_id = post_comment(
+                    url, comment, comment_id, token=HF_TOKEN
+                )
+                if comment_status:
+                    log_comments(url, comment)
+                    gr.Info(f"Posted reply to comment {posted_comment_id}")
+            else:
+                # If no comment_id is provided, post a new comment.
+                comment_status, posted_comment_id = post_comment(
+                    url, comment, token=HF_TOKEN
+                )
+                if comment_status:
+                    log_comments(url, comment)
+                    gr.Info(f"Posted new comment {posted_comment_id}")
 
-        if not comment_status:
-            gr.Info("Failed to post comment")
+            if not comment_status:
+                gr.Info("Failed to post comment")
 
     return formatted_recommendation