from groupy import Client

from util import api_keys

GROUPME_CLIENT = None


def get_client():
    if GROUPME_CLIENT is None:
        init_client()
    return GROUPME_CLIENT


def init_client():
    global GROUPME_CLIENT
    GROUPME_CLIENT = Client.from_token(api_keys.GROUPME)
    if not list(GROUPME_CLIENT.groups.list_all()):
        raise Exception("Invalid groupme token or not apart of any groups.")