class Feed(APIView):
    def get(self, request, format=None):
        user = request.user
        following_users = user.following.all()
        print("following_users , ", following_users)
        image_list = []
        for following_user in following_users:
            user_images = following_user.images.all()[:2]

            for image in user_images:
                print("image : ", image)
                image_list.append(image)

        # 본인 이미지도 추가
        my_images = user.images.all()[:2]
        for image in my_images:
            image_list.append(image)

        print("image_list : ", image_list)

        sorted_list = sorted(image_list, key=get_key, reverse=True)
        serializer = serializers.ImageSerializer(sorted_list, many=True)

        # return Response(status=200)
        return Response(serializer.data)

def get_key(image):
    return image.created_at

class ChangePassword(APIView):
    def put(self, request, username, format=None):
        print("함수 실행 확인(ChangePassword) ")
        user = request.user
        print('user : ', user)
        current_password = request.data.get('current_password',None)

        if current_password is not None:
            # request로 넘어온 비밀번호와 db의 비밀번호를 비교
            passwords_match = user.check_password(current_password)

            # 비밀번호가 정확할 경우 새로운 비밀번호를 request로부터 가져와서 user 객체에 save
            if passwords_match:
                new_password = request.data.get('new_password',None)
                if new_password is not None:
                    user.set_password(new_password)
                    user.save()
                    return Response(status=status.HTTP_200_OK)
                # None일 경우 400 응답
                else:
                    return Response(status=status.HTTP_400_BAD_REQUEST)
            # false일 경우 400 응답
            else:
                return Response(status=status.HTTP_400_BAD_REQUEST)
        # None일 경우 400 응답
        else:
            return Response(status=status.HTTP_400_BAD_REQUEST)