"""
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.


This program 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 General Public License for more details.


You should have received a copy of the GNU General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.

Copyright © 2019 Cloud Linux Software Inc.

This software is also available under ImunifyAV commercial license,
see <https://www.imunify360.com/legal/eula>
"""
import logging

from defence360agent.contracts.config import SystemConfig
from defence360agent.contracts.messages import ConfigUpdate
from defence360agent.contracts.plugins import MessageSink, expect
from defence360agent.utils import Scope
from imav.contracts.config import Malware as MalwareConfig
from imav.malwarelib.subsys import aibolit

logger = logging.getLogger(__name__)


class DetectAdminToolsWatcher(MessageSink):
    SCOPE = Scope.IM360

    def __init__(self):
        self._loop = None
        self._previous_detect_admin_tools = MalwareConfig.DETECT_ADMIN_TOOLS

    async def create_sink(self, loop) -> None:
        self._loop = loop

    @expect(ConfigUpdate)
    async def on_config_update(self, message: ConfigUpdate):
        if isinstance(message["conf"], SystemConfig):
            current_value = MalwareConfig.DETECT_ADMIN_TOOLS
            if self._previous_detect_admin_tools != current_value:
                logger.info(
                    "DETECT_ADMIN_TOOLS changed from %s to %s, restarting"
                    " ai-bolit",
                    self._previous_detect_admin_tools,
                    current_value,
                )
                self._previous_detect_admin_tools = current_value
                await aibolit.restart_on_detect_admin_tools_update()