from django.contrib.auth import get_permission_codename

from dj_kaos.utils.string import remove_suffix


def get_permission_descriptor(opts, action=None, codename=None):
    codename = codename or get_permission_codename(action, opts)
    return f'{opts.app_label}.{codename}'


def get_action_name(opts, codename):
    return remove_suffix(codename, f'_{opts.model_name}')


def extract_permission_codename(descriptor):
    return descriptor.split('.', maxsplit=1)[-1]


__all__ = (
    'get_permission_descriptor',
    'get_action_name',
    'extract_permission_codename',
)