"""Log adapter."""

import logging
import sys

from owslogger import logger

from accounting import config


def getlogger():
    """Return logger adapter.

    Returns:
        If LOGGER_DSN is set, returns an instance of owslogger's Logger class.
        Else returns a logger that prints to stdout

    """
    if config.LOGGER_DSN:
        # return ows logger
        return logger.setup(
            config.LOGGER_DSN, config.ENVIRONMENT, 'accounting_run_prep', 100,
            'accounting_run', '1.0.0')
    else:
        # return stream adapter to stdout
        logging.basicConfig(
            stream=sys.stdout,
            level=logging.DEBUG,
            format=config.LOGGER_FORMAT)
        return logging