#
# Copyright (c) 2018 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#

from oslo_versionedobjects import base as object_base

from fm.db import api as db_api
from fm.objects import base
from fm.objects import utils
from fm.common import constants


class Alarm(base.FmObject):

    VERSION = '1.0'

    dbapi = db_api.get_instance()

    fields = {
        'id': int,
        'uuid': utils.str_or_none,
        'alarm_id': utils.str_or_none,
        'alarm_state': utils.str_or_none,
        'entity_type_id': utils.str_or_none,
        'entity_instance_id': utils.str_or_none,
        'timestamp': utils.datetime_or_str_or_none,
        'severity': utils.str_or_none,
        'reason_text': utils.str_or_none,
        'alarm_type': utils.str_or_none,
        'probable_cause': utils.str_or_none,
        'proposed_repair_action': utils.str_or_none,
        'service_affecting': utils.str_or_none,
        'suppression': utils.str_or_none,
        'inhibit_alarms': utils.str_or_none,
        'masked': utils.str_or_none,
        'suppression_status': utils.str_or_none,
        'mgmt_affecting': utils.str_or_none,
        'degrade_affecting': utils.str_or_none,
    }

    @staticmethod
    def _from_db_object(server, db_server):
        """Converts a database entity to a formal object."""

        if isinstance(db_server, tuple):
            db_server_fields = db_server[0]
            db_suppress_status = db_server[constants.DB_SUPPRESS_STATUS]
            db_mgmt_affecting = db_server[constants.DB_MGMT_AFFECTING]
            db_degrade_affecting = db_server[constants.DB_DEGRADE_AFFECTING]
            db_server_fields['suppression_status'] = db_suppress_status
            db_server_fields['mgmt_affecting'] = db_mgmt_affecting
            db_server_fields['degrade_affecting'] = db_degrade_affecting
        else:
            db_server_fields = db_server

        for field in server.fields:
            server[field] = db_server_fields[field]

        server.obj_reset_changes()
        return server

    @object_base.remotable_classmethod
    def get_by_uuid(cls, context, uuid):
        return cls.dbapi.alarm_get(uuid)

    def save_changes(self, context, updates):
        self.dbapi.alarm_update(self.uuid, updates)