#

# Copyright (c) 2019 Red Hat, Inc.

#

# This file is part of nmstate

#

# This program 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 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 Lesser General Public License for more details.

#

# You should have received a copy of the GNU Lesser General Public License

# along with this program. If not, see <https://www.gnu.org/licenses/>.

#

from libnmstate.schema import VXLAN

from .common import NM

def create_setting(iface_state, base_con_profile):

    vxlan = iface_state.get(VXLAN.CONFIG_SUBTREE)

    if not vxlan:

        return None

    vxlan_setting = None

    if base_con_profile:

        vxlan_setting = base_con_profile.get_setting_vxlan()

        if vxlan_setting:

            vxlan_setting = vxlan_setting.duplicate()

    if not vxlan_setting:

        vxlan_setting = NM.SettingVxlan.new()

    vxlan_setting.props.id = vxlan[VXLAN.ID]

    vxlan_setting.props.parent = vxlan[VXLAN.BASE_IFACE]

    vxlan_remote = vxlan.get(VXLAN.REMOTE)

    if vxlan_remote:

        vxlan_setting.props.remote = vxlan_remote

    vxlan_destination_port = vxlan.get(VXLAN.DESTINATION_PORT)

    if vxlan_destination_port:

        vxlan_setting.props.destination_port = vxlan_destination_port

    return vxlan_setting

def get_info(device):

    """

    Provides the current active values for a device

    """

    if device.get_device_type() == NM.DeviceType.VXLAN:

        base_iface = ""

        if device.props.parent:

            base_iface = device.props.parent.get_iface()

        remote = device.props.group

        if not remote:

            remote = ""

        return {

            VXLAN.CONFIG_SUBTREE: {

                VXLAN.ID: device.props.id,

                VXLAN.BASE_IFACE: base_iface,

                VXLAN.REMOTE: remote,

                VXLAN.DESTINATION_PORT: _get_destination_port(device),

            }

        }

    return {}

def _get_destination_port(device):

    """

    Retrieve the destination port.

    """

    return device.get_dst_port()