import logging
import os

logger = logging.getLogger(__name__)

def load_config(mode=os.environ.get('MODE')):

    try:
        if mode == 'PRODUCTION':
            from settings_prod import ApplicationConfig
            return ApplicationConfig

        elif mode == 'LOCAL':
            from settings_local import ApplicationConfig
            return ApplicationConfig

        elif mode == 'DEVELOPMENT':
            from settings_dev import ApplicationConfig
            return ApplicationConfig
        else:
            pass

    except ImportError:
        from settings_dev import ApplicationConfig
        return ApplicationConfig