# Copyright 2020-2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library.  If not, see <http://www.gnu.org/licenses/>.

# Sets the new options "addnta" and "recursion-desired" for all
# 'dns forwarding domain' as this is usually desired

from vyos.configtree import ConfigTree

base = ['service', 'dns', 'forwarding']

def migrate(config: ConfigTree) -> None:
    if not config.exists(base):
        # Nothing to do
        return

    if config.exists(base + ['domain']):
        for domain in config.list_nodes(base + ['domain']):
            domain_base = base + ['domain', domain]
            config.set(domain_base + ['addnta'])
            config.set(domain_base + ['recursion-desired'])