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# Copyright 2021-2024 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/>.

# VyOS 1.2 crux allowed configuring a lower or upper case loglevel. This
# is no longer supported as the input data is validated and will lead to
# an error. If user specifies an upper case logleve, make it lowercase

from vyos.configtree import ConfigTree

base = ['service', 'conntrack-sync']

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

    base_accept_proto = base + ['accept-protocol']
    if config.exists(base_accept_proto):
        tmp = config.return_value(base_accept_proto)
        config.delete(base_accept_proto)
        for protocol in tmp.split(','):
            config.set(base_accept_proto, value=protocol, replace=False)

    base_ignore_addr = base + ['ignore-address', 'ipv4']
    if config.exists(base_ignore_addr):
        tmp = config.return_values(base_ignore_addr)
        config.delete(base_ignore_addr)
        for address in tmp:
            config.set(base + ['ignore-address'], value=address, replace=False)

    # we no longer support cluster mode
    base_cluster = base + ['failover-mechanism', 'cluster']
    if config.exists(base_cluster):
        config.delete(base_cluster)