"""Definition of setup_logging function."""

import logging
import os


def setup_logging() -> None:
    """Setup logging."""
    requested_log_level = os.getenv('LOG_LEVEL', default='info')
    level = getattr(logging, requested_log_level.upper())
    fmt = (
        '%(asctime)s | '
        '%(levelname)s | '
        '%(name)s | '
        '%(funcName)s | '
        '%(message)s'
    )
    datefmt = '%Y-%m-%d %H:%M:%S'
    logging.basicConfig(format=fmt, datefmt=datefmt, level=level, force=True)
    # change levels for modules that spam the log
    logging.getLogger('pymongo').setLevel(logging.WARNING)
    logging.getLogger('urllib3').setLevel(logging.INFO)
    logging.getLogger('PIL').setLevel(logging.INFO)
    logging.debug('finished')