Change to new util function for table name test, add get_recent_draw_date function

lottery_predictor/collect.py

@@ -20,10 +20,21 @@ project_variables = envutil.load_environment_variables()
 
 def get_record_count(table_name: str) -> str | None:
     """get the most recent draw record from the specified table"""
-    if table_name in ['PowerballDraw', 'MegaMillionsDraw']:
+    if drawutil.check_table_name(table_name):
         dal.connect()
         session = dal.Session()
         target_table = Base.registry._class_registry.get(table_name)
         return session.query(func.count(target_table.draw_date)).first()[0]
     else:
-        raise ValueError('Valid values are PowerballDraw, MegaMillionsDraw')
+        raise ValueError('An invalid table name was specified.')
+
+
+def get_recent_draw_date(table_name: str) -> datetime | None:
+    """get the most recent draw date from the specified table"""
+    if drawutil.check_table_name(table_name):
+        dal.connect()
+        session = dal.Session()
+        target_table = Base.registry._class_registry.get(table_name)
+        return session.query(func.max(target_table.draw_date)).first()[0]
+    else:
+        raise ValueError('An invalid table name was specified.')