import hashlib
import os
import tarfile
import urllib.request

from tqdm import tqdm


def print_arguments(args):
    print("-----------  Configuration Arguments -----------")
    for arg, value in vars(args).items():
        print("%s: %s" % (arg, value))
    print("------------------------------------------------")


def strtobool(val):
    val = val.lower()
    if val in ('y', 'yes', 't', 'true', 'on', '1'):
        return True
    elif val in ('n', 'no', 'f', 'false', 'off', '0'):
        return False
    else:
        raise ValueError("invalid truth value %r" % (val,))


def str_none(val):
    if val == 'None':
        return None
    else:
        return val


def add_arguments(argname, type, default, help, argparser, **kwargs):
    type = strtobool if type == bool else type
    type = str_none if type == str else type
    argparser.add_argument("--" + argname,
                           default=default,
                           type=type,
                           help=help + ' Default: %(default)s.',
                           **kwargs)