import sys

from snapcraft import storeapi
from snapcraft._store import _login


def _acquire_credentials(packages, channels):
    store = storeapi.StoreClient()
    if not _login(store, packages=packages, channels=channels, save=False):
        raise RuntimeError(
            'Cannot continue without logging in successfully.')

    store.conf.parser.write(sys.stdout)
    sys.stdout.flush()


def main():
    series = storeapi.constants.DEFAULT_SERIES
    snap_name = "firefox"

    packages = [{'name': snap_name, 'series': series}]
    channels = ['edge']
    _acquire_credentials(packages, channels)


if __name__ == "__main__":
    main()