# 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/>.

# * remove "system login user <user> group" node, Why should be add a user to a
#   3rd party group when the system is fully managed by CLI?
# * remove "system login user <user> level" node
#   This is the only privilege level left and also the default, what is the
#   sense in keeping this orphaned node?

from vyos.configtree import ConfigTree

base = ['system', 'login', 'user']

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

    for user in config.list_nodes(base):
        if config.exists(base + [user, 'group']):
            config.delete(base + [user, 'group'])

        if config.exists(base + [user, 'level']):
            config.delete(base + [user, 'level'])