from engine.constants import BATCH_SIZE

def get_new_lectures(cur, last_processed: int):
    sql = """
        SELECT rcourse_id, chrinfo_tag, chrinfo_time, chrinfo_location
        FROM reader_lectures
        WHERE rcourse_id > %s
        ORDER BY rcourse_id ASC
        LIMIT %s
    """
    cur.execute(sql, (last_processed, BATCH_SIZE))
    return cur.fetchall()