"""
.. module: lemur.plugins.bases.notification
    :platform: Unix
    :copyright: (c) 2018 by Netflix Inc., see AUTHORS for more
    :license: Apache, see LICENSE for more details.

.. moduleauthor:: Kevin Glisson <kglisson@netflix.com>
"""
from lemur.plugins.base import Plugin


class NotificationPlugin(Plugin):
    """
    This is the base class from which all of the supported
    issuers will inherit from.
    """

    type = "notification"

    def send(self, notification_type, message, targets, options, **kwargs):
        raise NotImplementedError

    def filter_recipients(self, options, excluded_recipients):
        """
        Given a set of options (which should include configured recipient info), filters out recipients that
        we do NOT want to notify.

        For any notification types where recipients can't be dynamically modified, this returns an empty list.
        """
        return []


class ExpirationNotificationPlugin(NotificationPlugin):
    """
    This is the base class for all expiration notification plugins.
    It contains some default options that are needed for all expiration
    notification plugins.
    """

    default_options = [
        {
            "name": "interval",
            "type": "int",
            "required": True,
            "validation": "^\d+$",
            "helpMessage": "Number of days to be alert before expiration.",
        },
        {
            "name": "unit",
            "type": "select",
            "required": True,
            "validation": "",
            "available": ["days", "weeks", "months"],
            "helpMessage": "Interval unit",
        },
    ]

    @property
    def options(self):
        return self.default_options + self.additional_options

    def send(self, notification_type, message, excluded_targets, options, **kwargs):
        raise NotImplementedError