# -*- coding: utf-8 -*-
#
from django.utils.translation import ugettext_lazy as _

from rest_framework import serializers

from common.utils import get_signer, validate_ssh_public_key
from common.mixins import BulkSerializerMixin
from common.serializers import AdaptedBulkListSerializer
from ..models import User, UserGroup

signer = get_signer()


class UserSerializer(BulkSerializerMixin, serializers.ModelSerializer):

    class Meta:
        model = User
        list_serializer_class = AdaptedBulkListSerializer
        fields = [
            'id', 'name', 'username', 'email', 'groups', 'groups_display',
            'role', 'role_display', 'avatar_url', 'wechat', 'phone',
            'otp_level', 'comment', 'source', 'source_display',
            'is_valid', 'is_expired', 'is_active',
            'created_by', 'is_first_login',
            'date_password_last_updated', 'date_expired',
        ]


class UserPKUpdateSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ['id', '_public_key']

    @staticmethod
    def validate__public_key(value):
        if not validate_ssh_public_key(value):
            raise serializers.ValidationError(_('Not a valid ssh public key'))
        return value


class UserUpdateGroupSerializer(serializers.ModelSerializer):
    groups = serializers.PrimaryKeyRelatedField(many=True, queryset=UserGroup.objects.all())

    class Meta:
        model = User
        fields = ['id', 'groups']


class UserGroupSerializer(BulkSerializerMixin, serializers.ModelSerializer):
    users = serializers.SerializerMethodField()

    class Meta:
        model = UserGroup
        list_serializer_class = AdaptedBulkListSerializer
        fields = '__all__'
        read_only_fields = ['created_by']

    @staticmethod
    def get_users(obj):
        return [user.name for user in obj.users.all()]


class UserGroupUpdateMemberSerializer(serializers.ModelSerializer):
    users = serializers.PrimaryKeyRelatedField(many=True, queryset=User.objects.all())

    class Meta:
        model = UserGroup
        fields = ['id', 'users']


class ChangeUserPasswordSerializer(serializers.ModelSerializer):

    class Meta:
        model = User
        fields = ['password']