import os, logging

def setup_logger(filename: str):
    # si l'argument est un chemin absolu, on le respecte
    if os.path.isabs(filename):
        log_path = filename
    else:
        # ancien comportement (ex: /var/log/Cuisine_Saclay/<filename>)
        base = "/var/log/Cuisine_Saclay"
        os.makedirs(base, exist_ok=True)
        log_path = os.path.join(base, filename)

    os.makedirs(os.path.dirname(log_path), exist_ok=True)
    logging.basicConfig(
        level=logging.INFO,
        filename=log_path,
        format="%(asctime)s %(levelname)s %(message)s"
    )