from rest_framework import serializers
from apps.goods.models import *


class GoodsCateSerializer(serializers.Serializer):
    id = serializers.IntegerField(read_only=True)
    name = serializers.CharField()


class GoodsSerializers(serializers.Serializer):
    name = serializers.CharField(required=True, max_length=100)
    # category = serializers.CharField(required=False)
    category = GoodsCateSerializer(required=False, read_only=True)
    market_price = serializers.DecimalField(max_digits=8, decimal_places=2)
    price = serializers.DecimalField(max_digits=8, decimal_places=2)

    def create(self, validated_data):
        print(type(validated_data), validated_data)
        return Goods.objects.create(**validated_data)

    def update(self, instance, validated_data):
        print(type(validated_data), validated_data)
        instance.name = validated_data.get('name')
        instance.market_price = validated_data.get('market_price')
        instance.price = validated_data.get('price')
        instance.save()
        return instance


class GoodsModelSerializer(serializers.ModelSerializer):
    category = GoodsCateSerializer(required=False, read_only=True)

    class Meta:
        model = Goods
        fields = '__all__'