import pyotp

from decouple import config
from os.path import join


def is_valid_otp(etcd_client, name, realm, token):
    _key = join(config("BASE_PREFIX"), realm, name)
    entry = etcd_client.get(_key, value_in_json=True)
    if entry:
        totp = pyotp.TOTP(entry.value['seed'])
        try:
            is_token_valid = totp.verify(token)
        except:
            return False
        else:
            return is_token_valid
    
    return False