fix

foodie_utils.py

@@ -1224,12 +1224,17 @@ def save_post_to_recent(post_title, post_url, author_username, timestamp):
     """Save a post to recent_posts.json, maintaining a JSON array."""
     try:
         recent_posts = load_json_file(RECENT_POSTS_FILE, expiration_hours=24)
+        # Check for duplicates before appending
         entry = {
             "title": post_title,
             "url": post_url,
             "author_username": author_username,
             "timestamp": timestamp
         }
+        key = (post_title, post_url, author_username)
+        if any((p["title"], p["url"], p["author_username"]) == key for p in recent_posts):
+            logging.debug(f"Skipping duplicate post: {post_title}")
+            return
         recent_posts.append(entry)
         with open(RECENT_POSTS_FILE, 'w') as f:
             json.dump(recent_posts, f, indent=2)

foodie_weekly_thread.py

@@ -143,7 +143,7 @@ def load_recent_posts():
             if not all(key in post for key in required_fields):
                 logging.warning(f"Skipping invalid post: missing fields {post}")
                 continue
-            datetime.fromisoformat(post["timestamp"])
+            datetime.fromisoformat(post["timestamp"].replace('Z', '+00:00'))
             key = (post["title"], post["url"], post["author_username"])
             if key not in unique_posts:
                 unique_posts[key] = post