# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Author: Endre Karlson <endre.karlson@hp.com>
#
# 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. See the
# License for the specific language governing permissions and limitations
# under the License.

import logging

from cliff import command
from cliff import lister
from cliff import show
import six

from designateclient import utils
from designateclient.v2.cli import common
from designateclient.v2.utils import get_all


LOG = logging.getLogger(__name__)


def _format_floatingip(fip):
    # Remove unneeded fields for display output formatting
    fip.pop('links', None)


class ListFloatingIPCommand(lister.Lister):
    """List floatingip ptr records"""

    columns = ['id', 'ptrdname', 'description', 'ttl']

    def take_action(self, parsed_args):
        client = self.app.client_manager.dns
        common.set_all_common_headers(client, parsed_args)

        cols = self.columns
        data = get_all(client.floatingips.list)
        return cols, (utils.get_item_properties(s, cols) for s in data)


class ShowFloatingIPCommand(show.ShowOne):
    """Show floatingip ptr record details"""

    def get_parser(self, prog_name):
        parser = super(ShowFloatingIPCommand, self).get_parser(prog_name)

        parser.add_argument('floatingip_id', help="Floating IP ID")

        common.add_all_common_options(parser)

        return parser

    def take_action(self, parsed_args):
        client = self.app.client_manager.dns
        common.set_all_common_headers(client, parsed_args)
        data = client.floatingips.get(parsed_args.floatingip_id)
        _format_floatingip(data)
        return six.moves.zip(*sorted(six.iteritems(data)))


class SetFloatingIPCommand(show.ShowOne):
    """Set floatingip ptr record"""

    def get_parser(self, prog_name):
        parser = super(SetFloatingIPCommand, self).get_parser(prog_name)

        parser.add_argument('floatingip_id', help="Floating IP ID")
        parser.add_argument('ptrdname', help="PTRD Name")

        description_group = parser.add_mutually_exclusive_group()
        description_group.add_argument('--description', help="Description")
        description_group.add_argument('--no-description', action='store_true')

        ttl_group = parser.add_mutually_exclusive_group()
        ttl_group.add_argument('--ttl', type=int, help="TTL")
        ttl_group.add_argument('--no-ttl', action='store_true')

        common.add_all_common_options(parser)

        return parser

    def take_action(self, parsed_args):
        data = {}

        if parsed_args.no_description:
            data['description'] = None
        elif parsed_args.description:
            data['description'] = parsed_args.description

        if parsed_args.no_ttl:
            data['ttl'] = None
        elif parsed_args.ttl:
            data['ttl'] = parsed_args.ttl

        client = self.app.client_manager.dns
        common.set_all_common_headers(client, parsed_args)

        fip = client.floatingips.set(
            parsed_args.floatingip_id,
            parsed_args.ptrdname,
            parsed_args.description,
            parsed_args.ttl)

        _format_floatingip(fip)
        return six.moves.zip(*sorted(six.iteritems(fip)))


class UnsetFloatingIPCommand(command.Command):
    """Unset floatingip ptr record"""

    def get_parser(self, prog_name):
        parser = super(UnsetFloatingIPCommand, self).get_parser(prog_name)

        parser.add_argument('floatingip_id', help="Floating IP ID")

        common.add_all_common_options(parser)

        return parser

    def take_action(self, parsed_args):
        client = self.app.client_manager.dns
        common.set_all_common_headers(client, parsed_args)
        client.floatingips.unset(parsed_args.floatingip_id)
        LOG.info('FloatingIP PTR %s was unset', parsed_args.floatingip_id)