solution

db/models.py

@@ -14,3 +14,32 @@ class Actor(models.Model):
 
     def __str__(self) -> str:
         return f"{self.first_name} {self.last_name}"
+
+
+class Movie(models.Model):
+    title = models.CharField(max_length=255, unique=True)
+    description = models.TextField()
+    actors = models.ManyToManyField(Actor)
+    gerne = models.ManyToManyField(Genre)
+
+    def __str__(self) -> str:
+        return self.title
+
+
+class CinemaHall(models.Model):
+    name = models.CharField(max_length=255)
+    rows = models.IntegerField(null=False)
+    seats_in_row = models.IntegerField(null=False)
+
+    def __str__(self):
+        return self.name
+
+    @property
+    def capacity(self) -> int:
+        return self.rows * self.seats_in_row
+
+class MovieSession(models.Model):
+    show_time = models.DateTimeField()
+    cinema_hall = models.ForeignKey(CinemaHall,
+                                    on_delete=models.CASCADE)
+    movie = models.ForeignKey(Movie, on_delete=models.CASCADE)

services/cinema_hall.py

@@ -0,0 +1,14 @@
+from db.models import CinemaHall
+from django.db.models import QuerySet
+
+
+def get_cinema_halls() -> QuerySet:
+    return CinemaHall.objects.all()
+
+
+def create_cinema_hall(hall_name: str,
+                       hall_rows: int,
+                       hall_seats_in_row: int) -> CinemaHall:
+    return CinemaHall(hall_name,
+                      hall_rows,
+                      hall_seats_in_row)

services/movie.py

@@ -0,0 +1,29 @@
+from db.models import Movie
+from django.db.models import QuerySet
+
+
+def get_movies(genres_ids: list = None, /,
+               actors_ids: list = None) -> QuerySet:
+    movies = Movie.objects.all()
+    if genres_ids:
+        movies.filter(genres__in=genres_ids)
+    if actors_ids:
+        movies.filter(actors__in=actors_ids)
+    return movies
+
+
+def get_movie_by_id(movie_id) -> Movie:
+    return Movie.objects.filter(id=movie_id)
+
+
+def create_movie(movie_title: str, movie_description: str,
+                 genres_ids: list = None,
+                 actors_ids: list = None) -> Movie:
+    new_movie = Movie.objects.create(title=movie_title,
+                                     description=movie_description)
+    if genres_ids:
+        new_movie.gernes.set(genres_ids)
+    if actors_ids:
+        new_movie.actors.set(actors_ids)
+
+    return new_movie

services/movie_session.py

@@ -0,0 +1,42 @@
+from db.models import MovieSession
+from datetime import datetime
+from django.db.models import QuerySet
+
+
+def create_movie_session(movie_show_time: datetime,
+                         movie_id: int,
+                         cinema_hall_id: int) -> MovieSession:
+    return MovieSession.objects.create(
+        show_time=movie_show_time, movie_id=movie_id,
+        cinema_hall_id=cinema_hall_id)
+
+
+def get_movies_sessions(session_date: datetime.date = None) -> QuerySet:
+    sessions_list = MovieSession.objecta.all()
+    if session_date:
+        sessions_list.filter(show_time__date=session_date)
+    return sessions_list
+
+
+def get_movie_session_by_id(movie_session_id: int) -> MovieSession:
+    return MovieSession.objects.get(id=movie_sessin_id)
+
+
+def update_movie_session(session_id: int,
+                         show_time: datetime = None,
+                         movie_id: int = None,
+                         cinema_hall_id: int = None) -> MovieSession:
+    movie_session = MovieSession.objects.get(id=session_id)
+    if show_time:
+        movie_session.show_time = show_time
+    if movie_id:
+        movie_session.movie_id = movie_id
+    if cinema_hall_id:
+        movie_session.cinema_hall_id = cinema_hall_id
+
+    movie_session.save()
+    return movie_session
+
+
+def delete_movie_session_by_id(session_id: int) -> None:
+    MovieSession.objects.get(id=session_id).delete()