# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/master/COPYING

from pylint.config.option_manager_mixin import OptionsManagerMixIn
from pylint.config.options_provider_mixin import OptionsProviderMixIn


class ConfigurationMixIn(OptionsManagerMixIn, OptionsProviderMixIn):
    """basic mixin for simple configurations which don't need the
    manager / providers model"""

    def __init__(self, *args, **kwargs):
        if not args:
            kwargs.setdefault("usage", "")
        OptionsManagerMixIn.__init__(self, *args, **kwargs)
        OptionsProviderMixIn.__init__(self)
        if not getattr(self, "option_groups", None):
            self.option_groups = []
            for _, optdict in self.options:
                try:
                    gdef = (optdict["group"].upper(), "")
                except KeyError:
                    continue
                if gdef not in self.option_groups:
                    self.option_groups.append(gdef)
        self.register_options_provider(self, own_group=False)
