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# Copyright 2025 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/>.

# T6989:
#   - remove syslog arbitrary file logging
#   - remove syslog user console logging

from vyos.configtree import ConfigTree

base = ['system', 'syslog']

def migrate(config: ConfigTree) -> None:
    if not config.exists(base):
        return

    if config.exists(base + ['file']):
        config.delete(base + ['file'])

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

    # rename host -> remote
    if config.exists(base + ['host']):
        config.set(base + ['remote'])
        config.set_tag(base + ['remote'])
        for remote in config.list_nodes(base + ['host']):
            config.copy(base + ['host', remote], base + ['remote', remote])
            config.set_tag(base + ['remote'])
        config.delete(base + ['host'])