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# 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/>.

# Command line migration of port mirroring
# https://vyos.dev/T3089

from vyos.configtree import ConfigTree

def migrate(config: ConfigTree) -> None:
    base = ['interfaces', 'ethernet']
    if not config.exists(base):
        # Nothing to do
        return

    for interface in config.list_nodes(base):
        mirror_old_base = base + [interface, 'mirror']
        if config.exists(mirror_old_base):
            intf = config.return_values(mirror_old_base)
            if config.exists(mirror_old_base):
                config.delete(mirror_old_base)
                config.set(mirror_old_base + ['ingress'],intf[0])