@action(detail=False, methods=['POST'], url_path='admin/create_lmssystem')
    def create_lmssystem(self, request, *args, **kwargs):
        serializer = AdminLMSSystemSerializer(data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)        
    
    @action(detail=False, methods=['get'], url_path='admin/get_lmssystem')
    def get_lmssystem(self, request, *args, **kwargs):
        lmssystem = LMSSystem.objects.all()
        serializer = AdminLMSSystemSerializer(lmssystem, many=True)
        return Response(serializer.data, status=status.HTTP_200_OK)

    @action(detail=False, methods=['GET'], url_path='admin/get_lmssystem_by_id')
    def get_lmssystem_by_id(self, request):
        try:
            lmssystem_id = request.data.get('id')
            lmssystem_instance = LMSSystem.objects.get(id=lmssystem_id)
            if not lmssystem_instance:
                return Response({"detail": "LMSSystem not found"}, status=status.HTTP_400_BAD_REQUEST)
            lmssystem_serializer_data = AdminLMSSystemSerializer(lmssystem_instance)
            return Response({"payload":lmssystem_serializer_data.data, "status": status.HTTP_200_OK})
        except LMSSystem.DoesNotExist:
            return Response({"error": "LMSSystem not found", "status": status.HTTP_404_NOT_FOUND})        

    @action(detail=False, methods=['PATCH'], url_path='admin/update_lmssystem')
    def update_lmssystem(self, request, *args, **kwargs):
        lmssystem_id = request.data.get('id')
        try:
            instance = LMSSystem.objects.get(id=lmssystem_id)
        except LMSSystem.DoesNotExist:
            return Response({"error":"LMSSystem not found"}, status=status.HTTP_400_BAD_REQUEST)
        serializer = AdminLMSSystemSerializer(instance, data=request.data, partial=True)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)    

    @action(detail=False, methods=['DELETE'], url_path='admin/delete_lmssystem')
    def delete_lmssystem(self, request, *args, **kwargs):
        lmssystem_id = request.data.get('id')
        try:
            instance = LMSSystem.objects.get(id=lmssystem_id)
        except LMSSystem.DoesNotExist:
            return Response({"error":"LMSSystem not found"}, status=status.HTTP_400_BAD_REQUEST)
        instance.delete()
        return Response(status=status.HTTP_204_NO_CONTENT)
        
class AdminLMSSystemSerializer(serializers.ModelSerializer):
    label = serializers.CharField(source='name', read_only=True)
    value = serializers.IntegerField(source='id', read_only=True)    
    class Meta:
        model = LMSSystem
        fields = ['id', 'name', 'label', 'value']
        read_only_fields = ['id', 'label', 'value']