#
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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
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import os
from os import environ

from airflow.models import Variable

LIMINAL_STAND_ALONE_MODE_KEY = "LIMINAL_STAND_ALONE_MODE"


def get_variable(key, default_val):
    if liminal_local_mode():
        return os.environ.get(key, default_val)
    else:
        return Variable.get(key, default_var=default_val)


def liminal_local_mode():
    stand_alone = environ.get(LIMINAL_STAND_ALONE_MODE_KEY, "False")
    return stand_alone.strip().lower() == "true"