from model_utils.choices import Choices

# TODO: add a state for invoice created
STATE_CHOICES = Choices(
        (1, 'created', 'created'),
        (2, 'delayed', 'delayed'),  # delayed as user wish
        (3, 'pending', 'pending'),  # wait for external service response
        (4, 'incomplete', 'incomplete'),  # started and wait for internal progress to complete
        (5, 'success', 'success'),
        (6, 'failed', 'failed'),
        (7, 'expected_failure', 'expected_failure'),  # no exact data available but guessed to be failed
        )