#!/usr/bin/python
# -*- coding: utf-8 -*-
# \file %filename%.py
# \brief TODO
# \author Florent Guiotte <florent.guiotte@gmail.com>
# \version 0.1
# \date 24 avril 2018
#
# from https://fangpenlin.com/posts/2012/08/26/good-logging-practice-in-python/

import os
import logging.config
from pathlib import Path

import yaml

def setup_logging(
    default_path='logging.yaml',
    default_level=logging.WARN,
    env_key='LOG_CFG'
):
    """Setup logging configuration

    """
    path = default_path
    value = os.getenv(env_key, None)
    if value:
        path = value
    if os.path.exists(path):
        with open(path, 'rt') as f:
            config = yaml.safe_load(f.read())
        makedirs(config)
        logging.config.dictConfig(config)
    else:
        logging.basicConfig(level=default_level)


def makedirs(dic):
    files = finddirs(dic)
    for f in files:
        d = Path(*f.parts[:-1])
        d.mkdir(parents=True, exist_ok=True)

def finddirs(dic, key='filename'):
    r = list()
    value = dic.get(key)
    if value : r.append(Path(value))
    for k, v in dic.items():
        if isinstance(v, dict):
            r.extend(finddirs(v))
    return r