# Copyright 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/>.

# pylint: disable=import-outside-toplevel

import os

from vyos.utils.backend import vyconf_backend
from vyos.utils.boot import boot_configuration_complete


def delete_cli_node(cli_path: list):
    if vyconf_backend() and boot_configuration_complete():
        # pylint: disable=redefined-outer-name
        from vyos.utils.session import delete_cli_node

        delete_cli_node(cli_path)
    else:
        from shutil import rmtree

        for config_dir in ['VYATTA_TEMP_CONFIG_DIR', 'VYATTA_CHANGES_ONLY_DIR']:
            tmp = os.path.join(os.environ[config_dir], '/'.join(cli_path))
            # delete CLI node
            if os.path.exists(tmp):
                rmtree(tmp)


def add_cli_node(cli_path: list, value: str = None):
    if vyconf_backend() and boot_configuration_complete():
        # pylint: disable=redefined-outer-name
        from vyos.utils.session import add_cli_node

        add_cli_node(cli_path, value)
    else:
        from vyos.utils.auth import get_current_user
        from vyos.utils.file import write_file

        current_user = get_current_user()
        for config_dir in ['VYATTA_TEMP_CONFIG_DIR', 'VYATTA_CHANGES_ONLY_DIR']:
            # store new value
            tmp = os.path.join(os.environ[config_dir], '/'.join(cli_path))
            write_file(
                f'{tmp}/node.val',
                value,
                user=current_user,
                group='vyattacfg',
                mode=0o664,
            )
            # mark CLI node as modified
            if config_dir == 'VYATTA_CHANGES_ONLY_DIR':
                write_file(
                    f'{tmp}/.modified',
                    '',
                    user=current_user,
                    group='vyattacfg',
                    mode=0o664,
                )