import logging
import os
import os.path as path
import yaml


class Config(object):
    def __init__(self, config_dir):
        with open(path.join(config_dir, "config.yaml")) as file:
            self.conf = yaml.load(file, Loader=yaml.SafeLoader)
            logging.info(f"{path.join(config_dir, 'config.yaml')} loaded")
        logging.debug('configuration:\n'+yaml.dump(self.conf))

    def get(self, key, default=None):
        v = self.conf
        for k in key.split("."):
            try:
                v = v[k]
            except KeyError:
                logging.debug(f"{key} not found")
                return default
        return v