# -*- coding: utf-8 -*-
"""
    rhodecode.model.users_group
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~

    repository permission model for RhodeCode

    :created_on: Oct 1, 2011
    :author: nvinot, marcink
    :copyright: (C) 2011-2011 Nicolas Vinot <aeris@imirhil.fr>
    :copyright: (C) 2009-2011 Marcin Kuzminski <marcin@python-works.com>
    :license: GPLv3, see COPYING for more details.
"""
# 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 <http://www.gnu.org/licenses/>.

import logging
from rhodecode.model.db import BaseModel, RepoToPerm, Permission,\
    UsersGroupRepoToPerm
from rhodecode.model.meta import Session

log = logging.getLogger(__name__)


class RepositoryPermissionModel(BaseModel):
    def get_user_permission(self, repository, user):
        return RepoToPerm.query() \
                .filter(RepoToPerm.user == user) \
                .filter(RepoToPerm.repository == repository) \
                .scalar()

    def update_user_permission(self, repository, user, permission):
        permission = Permission.get_by_key(permission)
        current = self.get_user_permission(repository, user)
        if current:
            if not current.permission is permission:
                current.permission = permission
        else:
            p = RepoToPerm()
            p.user = user
            p.repository = repository
            p.permission = permission
            Session.add(p)
        Session.commit()

    def delete_user_permission(self, repository, user):
        current = self.get_user_permission(repository, user)
        if current:
            Session.delete(current)
            Session.commit()

    def get_users_group_permission(self, repository, users_group):
        return UsersGroupRepoToPerm.query() \
                .filter(UsersGroupRepoToPerm.users_group == users_group) \
                .filter(UsersGroupRepoToPerm.repository == repository) \
                .scalar()

    def update_users_group_permission(self, repository, users_group,
                                      permission):
        permission = Permission.get_by_key(permission)
        current = self.get_users_group_permission(repository, users_group)
        if current:
            if not current.permission is permission:
                current.permission = permission
        else:
            p = UsersGroupRepoToPerm()
            p.users_group = users_group
            p.repository = repository
            p.permission = permission
            self.sa.add(p)
        Session.commit()

    def delete_users_group_permission(self, repository, users_group):
        current = self.get_users_group_permission(repository, users_group)
        if current:
            self.sa.delete(current)
        Session.commit()

    def update_or_delete_user_permission(self, repository, user, permission):
        if permission:
            self.update_user_permission(repository, user, permission)
        else:
            self.delete_user_permission(repository, user)

    def update_or_delete_users_group_permission(self, repository, user_group,
                                              permission):
        if permission:
            self.update_users_group_permission(repository, user_group,
                                               permission)
        else:
            self.delete_users_group_permission(repository, user_group)