# -*- coding: utf-8 -*-

# Copyright (C) 2014 Avencall
#
# 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/>

from sqlalchemy.orm import relationship
from sqlalchemy.schema import Column, ForeignKeyConstraint, CheckConstraint, PrimaryKeyConstraint, UniqueConstraint
from sqlalchemy.types import Integer

from xivo_dao.alchemy.agentfeatures import AgentFeatures
from xivo_dao.alchemy.extension import Extension
from xivo_dao.alchemy.func_key import FuncKey
from xivo_dao.helpers.db_manager import Base


class FuncKeyDestAgent(Base):
    __tablename__ = 'func_key_dest_agent'
    __table_args__ = (
        PrimaryKeyConstraint('func_key_id', 'destination_type_id'),
        ForeignKeyConstraint(['func_key_id', 'destination_type_id'],
                             ['func_key.id', 'func_key.destination_type_id']),
        ForeignKeyConstraint(['agent_id'],
                             ['agentfeatures.id']),
        ForeignKeyConstraint(['extension_id'],
                             ['extensions.id']),
        UniqueConstraint('agent_id', 'extension_id'),
        CheckConstraint('destination_type_id = 11'),
    )

    func_key_id = Column(Integer)
    destination_type_id = Column(Integer, server_default="11")
    agent_id = Column(Integer, nullable=False)
    extension_id = Column(Integer, nullable=False)

    func_key = relationship(FuncKey)
    agent = relationship(AgentFeatures)
    extension = relationship(Extension)
