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# Copyright 2023-2024 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/>.

# rename 'system option performance' leaf nodes to new names

from vyos.configtree import ConfigTree

base = ['system', 'option', 'performance']

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

    replace = {
        'throughput' : 'network-throughput',
        'latency' : 'network-latency'
    }

    for old_name, new_name in replace.items():
        if config.return_value(base) == old_name:
            config.set(base, new_name)