# -*- cpy-indent-level: 4; indent-tabs-mode: nil -*-
# ex: set expandtab softtabstop=4 shiftwidth=4:
#
# Copyright (C) 2016,2017  Contributor
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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""" Contains the logic for `aq update cluster autostartlist`. """

from aquilon.exceptions_ import NotFoundException, ArgumentError
from aquilon.aqdb.model import AutoStartList
from aquilon.worker.broker import BrokerCommand  # pylint: disable=W0611
from aquilon.worker.commands.update_resource import CommandUpdateResource
from aquilon.worker.dbwrappers.host import hostname_to_host
from aquilon.worker.dbwrappers.cluster import check_cluster_priority_order


class CommandUpdateClusterAutoStartList(CommandUpdateResource):

    required_parameters = ["cluster", "hostname"]
    resource_class = AutoStartList

    def update_resource(self, dbresource, session, logger, member, order, **kwargs):
        if member is not None:
            dbcluster = dbresource.holder.toplevel_holder_object
            dbhost = hostname_to_host(session, member)

            if not dbhost.cluster or dbhost.cluster != dbcluster:
                raise ArgumentError("{0} is not a member of {1:l}."
                                    .format(dbhost, dbcluster))
            try:
                entry = dbresource.entries[dbhost]
            except KeyError:
                raise NotFoundException("{0} does not have an autostart list entry."
                                        .format(dbhost))

            if order is not None:
                check_cluster_priority_order(dbcluster, self.config, 'order',
                                             order)
                entry.priority = order

    def render(self, hostname, **kwargs):
        super(CommandUpdateClusterAutoStartList, self).render(hostname=None,
                                                              metacluster=None,
                                                              comments=None,
                                                              member=hostname,
                                                              **kwargs)
