"""
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 peewee import Model, SqliteDatabase

from defence360agent.feature_management.constants import FULL
from imav.migration_utils.other import skip_for_im360
from imav.migration_utils.revisium import (
    find_revisium_db,
    get_all_domains,
    get_permission_status,
)

logger = logging.getLogger(__name__)

CLEANUP_ALLOWED_PERM_NAME = "ra_cleanup_allowed"

ra = SqliteDatabase(None)


class db:
    FeatureManagementPermissions: Model

    @classmethod
    def init(cls, migrator):
        cls.FeatureManagementPermissions = migrator.orm[
            "feature_management_permissions"
        ]


def get_imav_permission_map() -> dict:
    """
    {"user123": False, "user345": True, ..}
    """
    user_imav_cleanup_perm = {}
    try:
        all_domains = get_all_domains()
    except Exception as e:
        logger.warning("Failed to get Plesk domains: %r", e)
        return user_imav_cleanup_perm

    for domain_info in all_domains.values():
        if (owner := domain_info.get("owner")) is None:
            # skip a domain without an owner because it's an alias
            # and doesn't have its own files
            continue
        try:
            imav_cleanup_allowed = get_permission_status(
                domain_info["id"], CLEANUP_ALLOWED_PERM_NAME
            )
        except Exception as e:
            logger.warning(
                "Failed to get permission status for domain: %s Error: %s",
                str(domain_info["name"]),
                str(e),
            )
            continue
        user_imav_cleanup_perm[owner] = imav_cleanup_allowed

    return user_imav_cleanup_perm


@skip_for_im360
def migrate(migrator, database, fake=False, **kwargs):
    if fake:
        return

    revisium_db_path = find_revisium_db()
    if revisium_db_path is None:
        logger.info("No legacy ImunifyAV database found. Skipping...")
        return

    try:
        imav_permission_map = get_imav_permission_map()
    except Exception as e:
        logger.warning(
            "Cannot obtain permissions map for migration, Error: %s",
            str(e),
        )
        return

    if not imav_permission_map:
        logger.info("No users to migrate AV cleanup permissions")
        return

    db.init(migrator)

    for username, status in imav_permission_map.items():
        try:
            feature_perms, _ = db.FeatureManagementPermissions.get_or_create(
                user=username
            )
            if status:
                feature_perms.av = FULL
                feature_perms.save()
        except Exception as e:
            logger.warning(
                "Failed to update feature permissions for user: %s, Error: %s",
                username,
                str(e),
            )
            continue


@skip_for_im360
def rollback(migrator, database, fake=False, **kwargs):
    pass