from trading.models import ( 
    BrokerAccounts, JobbingSettings, Brokers, Scripts, Strategis, Exchanges
        )
from rest_framework import serializers
from django.db.models import Count
from permissions.filters import permitedCompanies
from django.contrib.auth.models import User

class CreatedBySerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = '__all__'

class BaseCompanyModelSerializer(serializers.ModelSerializer):
    def validate(self, data):
        # if self.context.get('request').stream.method in ['PUT','PATCH']:
        # if 'created_at' in self.context.get('request').data or 'created_by' in self.context.get('request').data:
        #     raise serializers.ValidationError(f"created data not allowed in request")                
        comp = data.get('company')
        premited = permitedCompanies(self.context.get('request').user)[0]
        if comp:
            if not comp.id in premited:
                raise serializers.ValidationError(f"Not authorized for company {comp}")
        else:
            if premited == []:
                return data
        return data  
        
class IsOwenerModelSerializer(serializers.ModelSerializer):
    # created_by = CreatedBySerializer(read_only=True)
    def validate(self, data):
        return data
        # if self.context.get('request').stream.method in ['PUT','PATCH']:
        # if 'created_at' in self.context.get('request').data or 'created_by' in self.context.get('request').data:
        #     raise serializers.ValidationError(f"created data not allowed in request")
        if self.context.get('request').user == data.get(''):
            return data
        else:
            raise serializers.ValidationError(f"Not authorized for other user {data.get('created_by')}")                  

class ExchangeSerializer(IsOwenerModelSerializer):
    class Meta:
        model = Exchanges
        fields = '__all__'

class BrokerSerialzer(IsOwenerModelSerializer):
    class Meta:
        model = Brokers
        fields = '__all__'            

class BrokerAccountDetSerializer(IsOwenerModelSerializer):
    broker = BrokerSerialzer(read_only=True)   
    class Meta:
        model = BrokerAccounts
        fields = '__all__'

class BrokerAccountSerializer(IsOwenerModelSerializer):
    class Meta:
        model = BrokerAccounts
        fields = '__all__'

class JobbingSettingDetSerializer(IsOwenerModelSerializer):
    exchange = ExchangeSerializer(read_only=True)
    target = BrokerAccountSerializer(read_only=True)   
    class Meta:
        model = JobbingSettings
        fields = '__all__'

class JobbingSettingSerializer(IsOwenerModelSerializer):
    class Meta:
        model = JobbingSettings
        fields = '__all__'

'''
For further innovation refere below link to make single writable serializer - Limitation that target in the relationship mucst always be known.
https://github.com/LilyFoote/rest-framework-generic-relations 
'''