fixed timezone

Author: virakasprova

ai_ta_backend/database/sql.py

@@ -158,4 +158,4 @@ def getPreAssignedAPIKeys(self, email: str):
     return self.supabase_client.table("pre_authorized_api_keys").select("*").contains("emails", '["' + email + '"]').execute()
 
   def getConversationsCreatedAtByCourse(self, course_name: str):
-    return self.supabase_client.table("llm-convo-monitor").select("created_at").eq("course_name", course_name).order("created_at", desc=False).execute()
+    return self.supabase_client.table("llm-convo-monitor").select("created_at").eq("course_name", course_name).execute()

ai_ta_backend/service/retrieval_service.py

@@ -548,6 +548,15 @@ def format_for_json(self, found_docs: List[Document]) -> List[Dict]:
   def getConversationStats(self, course_name: str):
     """
     Fetches conversation data from the database and groups them by day, hour, and weekday.
+
+     Args:
+        course_name (str)
+    
+    Returns:
+        dict: Aggregated conversation counts:
+        - 'per_day': By date (YYYY-MM-DD).
+        - 'per_hour': By hour (0-23).
+        - 'per_weekday': By weekday (Monday-Sunday).   
     """
     response = self.sqlDb.getConversationsCreatedAtByCourse(course_name)
 
@@ -589,11 +598,10 @@ def getConversationHeatmapByHour(self, course_name: str):
     Fetches conversation data and groups them into a heatmap by day of the week and hour (Central Time).
     
     Args:
-        course_name (str): The name of the course.
+        course_name (str)
 
     Returns:
-        dict: A nested dictionary where the outer key is the day of the week (e.g., "Monday"),
-              and the inner key is the hour of the day (0-23), and the value is the count of conversations.
+        dict: A nested dictionary with days of the week as outer keys and hours (0-23) as inner keys, where values are conversation counts.
     """
     response = self.sqlDb.getConversationsCreatedAtByCourse(course_name)
     central_tz = pytz.timezone('America/Chicago')