Solution

cinema/permissions.py

@@ -0,0 +1,13 @@
+from rest_framework.permissions import BasePermission, SAFE_METHODS
+
+
+class IsAdminOrIfAuthenticatedReadOnly(BasePermission):
+
+    def has_permission(self, request, view):
+        if request.user and request.user.is_staff:
+            return True
+
+        if request.user and request.user.is_authenticated:
+            return request.method in SAFE_METHODS
+
+        return False

cinema/views.py

@@ -1,10 +1,15 @@
 from datetime import datetime
 
 from django.db.models import F, Count
-from rest_framework import viewsets
+from rest_framework import viewsets, status, mixins
+from rest_framework.authentication import TokenAuthentication
 from rest_framework.pagination import PageNumberPagination
+from rest_framework.permissions import IsAuthenticated, IsAdminUser
+from rest_framework.response import Response
+from rest_framework.viewsets import GenericViewSet
 
 from cinema.models import Genre, Actor, CinemaHall, Movie, MovieSession, Order
+from cinema.permissions import IsAdminOrIfAuthenticatedReadOnly
 
 from cinema.serializers import (
     GenreSerializer,
@@ -21,24 +26,41 @@
 )
 
 
-class GenreViewSet(viewsets.ModelViewSet):
+class GenreViewSet(mixins.ListModelMixin,
+                   mixins.CreateModelMixin,
+                   GenericViewSet):
     queryset = Genre.objects.all()
     serializer_class = GenreSerializer
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = [IsAdminOrIfAuthenticatedReadOnly]
 
 
-class ActorViewSet(viewsets.ModelViewSet):
+class ActorViewSet(mixins.ListModelMixin,
+                   mixins.CreateModelMixin,
+                   GenericViewSet):
     queryset = Actor.objects.all()
     serializer_class = ActorSerializer
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = [IsAdminOrIfAuthenticatedReadOnly]
 
 
-class CinemaHallViewSet(viewsets.ModelViewSet):
+class CinemaHallViewSet(mixins.ListModelMixin,
+                        mixins.CreateModelMixin,
+                        GenericViewSet):
     queryset = CinemaHall.objects.all()
     serializer_class = CinemaHallSerializer
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = [IsAdminOrIfAuthenticatedReadOnly]
 
 
-class MovieViewSet(viewsets.ModelViewSet):
+class MovieViewSet(mixins.ListModelMixin,
+                   mixins.CreateModelMixin,
+                   mixins.RetrieveModelMixin,
+                   GenericViewSet):
     queryset = Movie.objects.prefetch_related("genres", "actors")
     serializer_class = MovieSerializer
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = [IsAdminOrIfAuthenticatedReadOnly]
 
     @staticmethod
     def _params_to_ints(qs):
@@ -87,6 +109,8 @@ class MovieSessionViewSet(viewsets.ModelViewSet):
         )
     )
     serializer_class = MovieSessionSerializer
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = [IsAdminOrIfAuthenticatedReadOnly]
 
     def get_queryset(self):
         date = self.request.query_params.get("date")
@@ -118,12 +142,16 @@ class OrderPagination(PageNumberPagination):
     max_page_size = 100
 
 
-class OrderViewSet(viewsets.ModelViewSet):
+class OrderViewSet(mixins.ListModelMixin,
+                   mixins.CreateModelMixin,
+                   GenericViewSet):
     queryset = Order.objects.prefetch_related(
         "tickets__movie_session__movie", "tickets__movie_session__cinema_hall"
     )
     serializer_class = OrderSerializer
     pagination_class = OrderPagination
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = [IsAuthenticated]
 
     def get_queryset(self):
         return Order.objects.filter(user=self.request.user)

cinema_service/settings.py

@@ -125,7 +125,7 @@
 
 USE_I18N = True
 
-USE_TZ = False
+USE_TZ = True
 
 
 # Static files (CSS, JavaScript, Images)

cinema_service/urls.py

@@ -5,4 +5,5 @@
     path("admin/", admin.site.urls),
     path("api/cinema/", include("cinema.urls", namespace="cinema")),
     path("__debug__/", include("debug_toolbar.urls")),
+    path("api/user/", include("user.urls", namespace="user")),
 ]

user/serializers.py

@@ -1 +1,30 @@
-# write your code here
+from django.contrib.auth import get_user_model
+from rest_framework import serializers
+
+from user.models import User
+
+
+class UserSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = User
+        fields = ("id", "username", "email", "password", "is_staff")
+        read_only_fields = ("id", "is_staff")
+        extra_kwargs = {
+            "password": {
+                "write_only": True,
+                "min_length": 5,
+            }
+        }
+
+    def create(self, validated_data):
+        user = get_user_model().objects.create_user(**validated_data)
+        return user
+
+    def update(self, instance, validated_data):
+        password = validated_data.pop("password", None)
+        user = super().update(instance, validated_data)
+
+        if password:
+            user.set_password(password)
+            user.save()
+        return user

user/tests/test_user_api.py

@@ -59,9 +59,7 @@ def test_password_too_short(self):
         res = self.client.post(CREATE_USER_URL, payload)
 
         self.assertEqual(res.status_code, status.HTTP_400_BAD_REQUEST)
-        user_exists = (
-            get_user_model().objects.filter(email=payload["email"]).exists()
-        )
+        user_exists = get_user_model().objects.filter(email=payload["email"]).exists()
         self.assertFalse(user_exists)
 
     def test_create_token_for_user(self):
@@ -79,9 +77,7 @@ def test_create_token_for_user(self):
 
     def test_create_token_invalid_credentials(self):
         """Test that token is not created if invalid credentials are given"""
-        create_user(
-            username="user12345", email="[email protected]", password="test123"
-        )
+        create_user(username="user12345", email="[email protected]", password="test123")
         payload = {
             "username": "user12345",
             "email": "[email protected]",

user/urls.py

@@ -1 +1,11 @@
-# write your code here
+from django.urls import path
+
+from user.views import CreateUserView, LoginUserView, ManageUserView
+
+urlpatterns = [
+    path("register/", CreateUserView.as_view(), name="create"),
+    path("login/", LoginUserView.as_view(), name="login"),
+    path("me/", ManageUserView.as_view(), name="manage"),
+]
+
+app_name = "user"

user/views.py

@@ -1 +1,28 @@
-# write your code here
+from contextvars import Token
+
+from django.contrib.auth import get_user_model
+from rest_framework import generics
+from rest_framework.authentication import TokenAuthentication
+from rest_framework.authtoken.views import ObtainAuthToken
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.settings import api_settings
+
+from user.serializers import UserSerializer
+
+
+class CreateUserView(generics.CreateAPIView):
+    queryset = get_user_model().objects.all()
+    serializer_class = UserSerializer
+
+
+class LoginUserView(ObtainAuthToken):
+    renderer_classes = api_settings.DEFAULT_RENDERER_CLASSES
+
+
+class ManageUserView(generics.RetrieveUpdateAPIView):
+    serializer_class = UserSerializer
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = (IsAuthenticated,)
+
+    def get_object(self):
+        return self.request.user