# -*- mode: python; coding: utf-8 -*-
# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
# se veut agnostique au réseau considéré, de manière à être installable en
# quelques clics.
#
# Copyright © 2018 Maël Kervella
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

from rest_framework import viewsets, generics

from . import serializers
import topologie.models as topologie
import machines.models as machines


class StackViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.Stack` objects.
    """

    queryset = topologie.Stack.objects.all()
    serializer_class = serializers.StackSerializer


class AccessPointViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.AccessPoint` objects.
    """

    queryset = topologie.AccessPoint.objects.all()
    serializer_class = serializers.AccessPointSerializer


class SwitchViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.Switch` objects.
    """

    queryset = topologie.Switch.objects.all()
    serializer_class = serializers.SwitchSerializer


class ServerViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.Server` objects.
    """

    queryset = topologie.Server.objects.all()
    serializer_class = serializers.ServerSerializer


class ModelSwitchViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.ModelSwitch` objects.
    """

    queryset = topologie.ModelSwitch.objects.all()
    serializer_class = serializers.ModelSwitchSerializer


class ConstructorSwitchViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.ConstructorSwitch`
    objects.
    """

    queryset = topologie.ConstructorSwitch.objects.all()
    serializer_class = serializers.ConstructorSwitchSerializer


class SwitchBayViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.SwitchBay` objects.
    """

    queryset = topologie.SwitchBay.objects.all()
    serializer_class = serializers.SwitchBaySerializer


class BuildingViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.Building` objects.
    """

    queryset = topologie.Building.objects.all()
    serializer_class = serializers.BuildingSerializer


class SwitchPortViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.Port` objects.
    """

    queryset = topologie.Port.objects.all()
    serializer_class = serializers.SwitchPortSerializer


class PortProfileViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.PortProfile` objects.
    """

    queryset = topologie.PortProfile.objects.all()
    serializer_class = serializers.PortProfileSerializer


class RoomViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.Room` objects.
    """

    queryset = topologie.Room.objects.all()
    serializer_class = serializers.RoomSerializer


class PortProfileViewSet(viewsets.ReadOnlyModelViewSet):
    """Exposes list and details of `topologie.models.PortProfile` objects.
    """

    queryset = topologie.PortProfile.objects.all()
    serializer_class = serializers.PortProfileSerializer


class SwitchPortView(generics.ListAPIView):
    """Output each port of a switch, to be serialized with
    additionnal informations (profiles etc)
    """

    queryset = (
        topologie.Switch.objects.all()
        .select_related("switchbay")
        .select_related("model__constructor")
        .prefetch_related("ports__custom_profile__vlan_tagged")
        .prefetch_related("ports__custom_profile__vlan_untagged")
        .prefetch_related("ports__machine_interface__domain__extension")
        .prefetch_related("ports__room")
    )

    serializer_class = serializers.SwitchPortSerializer


class RoleView(generics.ListAPIView):
    """Output of roles for each server
    """

    queryset = machines.Role.objects.all().prefetch_related("servers")
    serializer_class = serializers.RoleSerializer