from django.contrib.auth import get_user_model
from django.utils.translation import gettext_lazy as _
from settings.puckoviews import PuckoView
from settings.puckoviews import PuckoSlugView
from rest_framework import serializers

from mobile_phone.models import Phone_Swedish
from .models import User_Profile
from .models import Friend_Request

class Friend_Request_Serializer(serializers.ModelSerializer):
    asked_by = serializers.CharField(source="from_user.nickname")
    to = serializers.CharField(source="to_user.nickname")
    nickname = serializers.CharField(write_only=True)

    class Meta:
        model = Friend_Request
        fields = ("id", "nickname", "asked_by", "to")
        read_only_fields = ["id", "asked_by", "to"]
        extra_kwargs = {
            "url": {"lookup_field": "pk"}
        }

class User_Searchalizer(serializers.ModelSerializer):
    search = serializers.CharField(max_length=50, required=True, write_only=True)

    class Meta:
        model = User_Profile
        fields = ("search", "nickname", "birthday", "first_name", "last_name", "slug")
        read_only_fields = ("nickname", "birthday", "first_name", "last_name", "slug")
        extra_kwargs = {
            "url": {"lookup_field": "slug"}
        }

    def validate(self, attrs):
        if not isinstance(attrs["search"], str):
            raise serializers.ValidationError({"search": "needs to be a string."})
        return attrs


class User_Profile_Serializer(serializers.ModelSerializer):

    class Meta:
        model = User_Profile
        read_only_fields = ["slug"]
        exclude = ("id", "user", "friends", "created_at", "updated_at")
        extra_kwargs = {
            "url": {"lookup_field": "pk"}
        }

class User_Profile_Small_Serializer(serializers.ModelSerializer):

    class Meta:
        model = User_Profile
        read_only_fields = ["slug"]
        exclude = ("id", "user", "friends", "created_at", "updated_at", "first_name", "last_name", "birthday")
        extra_kwargs = {
            "url": {"lookup_field": "pk"}
        }

class My_Profile_Serializer(serializers.ModelSerializer):

    class Meta:
        model = User_Profile
        read_only_fields = ["slug", "created_at", "updated_at"]
        exclude = ("id", "user", "friends")
        extra_kwargs = {
            "url": {"lookup_field": "slug"}
        }

    def update_profile(self, instance, validated_data):
        instance.nickname = validated_data.get("nickname", instance.nickname)
        instance.first_name = validated_data.get("first_name", instance.first_name)
        instance.last_name = validated_data.get("last_name", instance.last_name)
        instance.birthday = validated_data.get("birthday", instance.birthday)
        return instance
    
    def create(self, validated_data):
        profile = User_Profile.objects.create(**validated_data)
        profile.save()
        return profile
    
    def update(self, instance, validated_data):
        instance = self.update_profile(instance=instance, validated_data=validated_data)
        instance.save()
        return instance