# 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 © 2017  Gabriel Détraz
# Copyright © 2017  Goulven Kermarec
# Copyright © 2017  Augustin Lemesle
#
# 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.

#Augustin Lemesle

from rest_framework import serializers
from machines.models import Interface, IpType, Extension, IpList, MachineType, Domain, Mx, Ns

class IpTypeField(serializers.RelatedField):
    def to_representation(self, value):
        return value.type

class IpListSerializer(serializers.ModelSerializer):
    ip_type = IpTypeField(read_only=True)

    class Meta:
        model = IpList
        fields = ('ipv4', 'ip_type')

class InterfaceSerializer(serializers.ModelSerializer):
    ipv4 = IpListSerializer(read_only=True)
    domain = serializers.SerializerMethodField('get_dns')
    extension = serializers.SerializerMethodField('get_extension')

    class Meta:
        model = Interface
        fields = ('ipv4', 'mac_address', 'domain', 'extension')

    def get_dns(self, obj):
        return obj.domain.name

    def get_extension(self, obj):
        return obj.domain.extension.name

class ExtensionNameField(serializers.RelatedField):
    def to_representation(self, value):
        return value.name

class TypeSerializer(serializers.ModelSerializer):
    extension = ExtensionNameField(read_only=True)

    class Meta:
        model = IpType
        fields = ('type', 'extension', 'domaine_ip', 'domaine_range')

class ExtensionSerializer(serializers.ModelSerializer):
    origin = serializers.SerializerMethodField('get_origin_ip')

    class Meta:
        model = Extension
        fields = ('name', 'origin')

    def get_origin_ip(self, obj):
        return obj.origin.ipv4

class MxSerializer(serializers.ModelSerializer):
    name = serializers.SerializerMethodField('get_name')
    zone = serializers.SerializerMethodField('get_zone_name')

    class Meta:
        model = Mx
        fields = ('zone', 'priority', 'name')

    def get_name(self, obj):
        return obj.name

    def get_zone_name(self, obj):
        return obj.zone.name

class NsSerializer(serializers.ModelSerializer):
    zone = serializers.SerializerMethodField('get_zone_name')
    ns = serializers.SerializerMethodField('get_interface_name')

    class Meta:
        model = Ns
        fields = ('zone', 'ns')

    def get_zone_name(self, obj):
        return obj.zone.name

    def get_interface_name(self, obj):
        return obj.ns

class DomainSerializer(serializers.ModelSerializer):
    extension = serializers.SerializerMethodField('get_zone_name')
    cname = serializers.SerializerMethodField('get_cname')

    class Meta:
        model = Domain
        fields = ('name', 'extension', 'cname')

    def get_zone_name(self, obj):
        return obj.extension.name

    def get_cname(self, obj):
        return obj.cname