from rest_framework import serializers


class LoginSerializer(serializers.Serializer):
    username = serializers.CharField()
    password = serializers.CharField(write_only=True)


class UserInfoSerializer(serializers.Serializer):
    id = serializers.IntegerField()
    username = serializers.CharField()
    is_superuser = serializers.BooleanField()
    is_active = serializers.BooleanField()
    date_joined = serializers.DateTimeField()
    last_login = serializers.DateTimeField()
    role = serializers.SerializerMethodField()

    def get_role(self, obj):
        return 'admin'


class ChangePasswordSerializer(serializers.Serializer):
    old_password = serializers.CharField(write_only=True)
    new_password = serializers.CharField(write_only=True, min_length=6)


class AdminUserCreateSerializer(serializers.Serializer):
    username = serializers.CharField(max_length=150)
    password = serializers.CharField(write_only=True, min_length=6)
    is_superuser = serializers.BooleanField(default=False)