from django.shortcuts import render
from django.contrib.auth import get_user_model
from django.contrib.auth.models import Group

from rest_framework import viewsets, permissions, generics

from rest_framework.views import APIView
from rest_framework.response import Response

from uncloud_vm.models import VMProduct
from .models import VMSnapshotProduct
from .serializers import UserSerializer, GroupSerializer, VMSnapshotSerializer, VMSnapshotCreateSerializer


import inspect
import sys
import re


# POST /vm/snapshot/ vmuuid=... => create snapshot, returns snapshot uuid
# GET /vm/snapshot => list
# DEL /vm/snapshot/<uuid:uuid> => delete
# create-list -> get, post => ListCreateAPIView
# del on other!
class VMSnapshotView(viewsets.ViewSet):
    permission_classes = [permissions.IsAuthenticated]

    def list(self, request):
        queryset = VMSnapshotProduct.objects.filter(owner=request.user)
        serializer = VMSnapshotSerializer(queryset, many=True, context={'request': request})
        return Response(serializer.data)

    def retrieve(self, request, pk=None):
        queryset = VMSnapshotProduct.objects.filter(owner=request.user)
        vm = get_object_or_404(queryset, pk=pk)
        serializer = VMSnapshotSerializer(vm, context={'request': request})
        return Response(serializer.data)

    def create(self, request):
        print(request.data)
        serializer = VMSnapshotCreateSerializer(data=request.data)

        serializer.gb_ssd = 12
        serializer.gb_hdd = 120
        print("F")
        serializer.is_valid(raise_exception=True)

        print(serializer)
        print("A")
        serializer.save()
        print("B")


        # snapshot = VMSnapshotProduct(owner=request.user,
        #                              **serialzer.data)

        return Response(serializer.data)



# maybe drop or not --- we need something to guide the user!
# class ProductsViewSet(viewsets.ViewSet):
#     permission_classes = [permissions.IsAuthenticated]

#     def list(self, request):

#         clsmembers = []
#         for modules in [ 'uncloud_api.models', 'uncloud_vm.models' ]:
#             clsmembers.extend(inspect.getmembers(sys.modules[modules], inspect.isclass))


#         products = []
#         for name, c in clsmembers:
#             # Include everything that ends in Product, but not Product itself
#             m = re.match(r'(?P<pname>.+)Product$', name)
#             if m:
#                 products.append({
#                     'name': m.group('pname'),
#                     'description': c.description,
#                     'recurring_period': c.recurring_period,
#                     'pricing_model': c.pricing_model()
#                 }
#                 )


#         return Response(products)


class UserViewSet(viewsets.ModelViewSet):
    serializer_class = UserSerializer
    permission_classes = [permissions.IsAuthenticated]

    def get_queryset(self):
        return self.request.user