First solution

src/main/java/mate/academy/Main.java

@@ -2,16 +2,26 @@
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.util.List;
+import mate.academy.lib.Injector;
 import mate.academy.model.CinemaHall;
 import mate.academy.model.Movie;
 import mate.academy.model.MovieSession;
+import mate.academy.model.ShoppingCart;
+import mate.academy.model.Ticket;
+import mate.academy.model.User;
 import mate.academy.service.CinemaHallService;
 import mate.academy.service.MovieService;
 import mate.academy.service.MovieSessionService;
+import mate.academy.service.OrderService;
+import mate.academy.service.UserService;
 
 public class Main {
+    private static final Injector injector = Injector.getInstance("mate.academy");
+
     public static void main(String[] args) {
-        MovieService movieService = null;
+        MovieService movieService = (MovieService) injector
+                .getInstance(MovieService.class);
 
         Movie fastAndFurious = new Movie("Fast and Furious");
         fastAndFurious.setDescription("An action film about street racing, heists, and spies.");
@@ -27,7 +37,8 @@ public static void main(String[] args) {
         secondCinemaHall.setCapacity(200);
         secondCinemaHall.setDescription("second hall with capacity 200");
 
-        CinemaHallService cinemaHallService = null;
+        CinemaHallService cinemaHallService = (CinemaHallService) injector
+                .getInstance(CinemaHallService.class);
         cinemaHallService.add(firstCinemaHall);
         cinemaHallService.add(secondCinemaHall);
 
@@ -44,12 +55,50 @@ public static void main(String[] args) {
         yesterdayMovieSession.setMovie(fastAndFurious);
         yesterdayMovieSession.setShowTime(LocalDateTime.now().minusDays(1L));
 
-        MovieSessionService movieSessionService = null;
+        MovieSessionService movieSessionService = (MovieSessionService) injector
+                .getInstance(MovieSessionService.class);
         movieSessionService.add(tomorrowMovieSession);
         movieSessionService.add(yesterdayMovieSession);
 
         System.out.println(movieSessionService.get(yesterdayMovieSession.getId()));
         System.out.println(movieSessionService.findAvailableSessions(
                         fastAndFurious.getId(), LocalDate.now()));
+
+        User bob = new User();
+        bob.setPassword("password");
+        bob.setEmail("bob.marley@gmail.com");
+        User anna = new User();
+        anna.setPassword("password");
+        anna.setEmail("anna.haithway@gmail.com");
+        UserService userService = (UserService) injector
+                .getInstance(UserService.class);
+        userService.add(bob);
+        userService.add(anna);
+
+        Ticket terminator = new Ticket();
+        terminator.setUser(bob);
+        terminator.setMovieSession(tomorrowMovieSession);
+
+        Ticket missionImpossible = new Ticket();
+        missionImpossible.setUser(anna);
+        missionImpossible.setMovieSession(yesterdayMovieSession);
+
+        ShoppingCart shoppingCartBob = new ShoppingCart();
+        shoppingCartBob.setUser(bob);
+        shoppingCartBob.setTickets(List.of(terminator));
+        shoppingCartBob.setId(bob.getId());
+
+        ShoppingCart shoppingCartAnna = new ShoppingCart();
+        shoppingCartAnna.setUser(anna);
+        shoppingCartAnna.setTickets(List.of(missionImpossible));
+        shoppingCartAnna.setId(anna.getId());
+
+        OrderService orderService = (OrderService) injector.getInstance(OrderService.class);
+        System.out.println(orderService.getOrdersHistory(bob));
+        System.out.println(orderService.getOrdersHistory(anna));
+        System.out.println(orderService.completeOrder(shoppingCartBob));
+        System.out.println(orderService.completeOrder(shoppingCartAnna));
+        System.out.println(orderService.getOrdersHistory(bob));
+        System.out.println(orderService.getOrdersHistory(anna));
     }
 }

src/main/java/mate/academy/dao/OrderDao.java

@@ -0,0 +1,11 @@
+package mate.academy.dao;
+
+import java.util.List;
+import mate.academy.model.Order;
+import mate.academy.model.User;
+
+public interface OrderDao {
+    Order add(Order order);
+
+    List<Order> getByUser(User user);
+}

src/main/java/mate/academy/dao/impl/OrderDaoImpl.java

@@ -0,0 +1,54 @@
+package mate.academy.dao.impl;
+
+import java.util.List;
+import mate.academy.dao.OrderDao;
+import mate.academy.exception.DataProcessingException;
+import mate.academy.lib.Dao;
+import mate.academy.model.Order;
+import mate.academy.model.User;
+import mate.academy.util.HibernateUtil;
+import org.hibernate.Session;
+import org.hibernate.Transaction;
+
+@Dao
+public class OrderDaoImpl implements OrderDao {
+    @Override
+    public Order add(Order order) {
+        Transaction transaction = null;
+        Session session = null;
+        try {
+            session = HibernateUtil.getSessionFactory().openSession();
+            transaction = session.beginTransaction();
+            session.persist(order);
+            transaction.commit();
+            return order;
+        } catch (Exception e) {
+            if (transaction != null) {
+                transaction.rollback();
+            }
+            throw new DataProcessingException("Can't insert an order: " + order, e);
+        } finally {
+            if (session != null) {
+                session.close();
+            }
+        }
+    }
+
+    @Override
+    public List<Order> getByUser(User user) {
+        try (Session session = HibernateUtil.getSessionFactory().openSession()) {
+            return session.createQuery("FROM Order o "
+                    + "LEFT JOIN FETCH o.tickets t "
+                    + "LEFT JOIN FETCH o.user "
+                    + "LEFT JOIN FETCH t.movieSession ms "
+                    + "LEFT JOIN FETCH t.user "
+                    + "LEFT JOIN FETCH ms.movie "
+                    + "LEFT JOIN FETCH ms.cinemaHall "
+                    + "WHERE o.user =:user", Order.class)
+                        .setParameter("user", user)
+                        .getResultList();
+        } catch (Exception e) {
+            throw new DataProcessingException("Can't find a shopping cart by user: " + user, e);
+        }
+    }
+}

src/main/java/mate/academy/model/Order.java

@@ -0,0 +1,68 @@
+package mate.academy.model;
+
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Entity
+@Table(name = "orders")
+public class Order {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+    @OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.PERSIST)
+    private List<Ticket> tickets;
+    private LocalDateTime orderDate;
+    @ManyToOne(fetch = FetchType.LAZY)
+    private User user;
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public List<Ticket> getTickets() {
+        return tickets;
+    }
+
+    public void setTickets(List<Ticket> tickets) {
+        this.tickets = tickets;
+    }
+
+    public LocalDateTime getOrderDate() {
+        return orderDate;
+    }
+
+    public void setOrderDate(LocalDateTime orderDate) {
+        this.orderDate = orderDate;
+    }
+
+    public User getUser() {
+        return user;
+    }
+
+    public void setUser(User user) {
+        this.user = user;
+    }
+
+    @Override
+    public String toString() {
+        return "Order{"
+                + "id=" + id
+                + ", tickets=" + tickets
+                + ", orderDate=" + orderDate
+                + ", user=" + user
+                + '}';
+    }
+}

src/main/java/mate/academy/service/OrderService.java

@@ -0,0 +1,12 @@
+package mate.academy.service;
+
+import java.util.List;
+import mate.academy.model.Order;
+import mate.academy.model.ShoppingCart;
+import mate.academy.model.User;
+
+public interface OrderService {
+    Order completeOrder(ShoppingCart shoppingCart);
+
+    List<Order> getOrdersHistory(User user);
+}

src/main/java/mate/academy/service/impl/OrderServiceImpl.java

@@ -0,0 +1,35 @@
+package mate.academy.service.impl;
+
+import java.util.ArrayList;
+import java.util.List;
+import mate.academy.dao.OrderDao;
+import mate.academy.lib.Inject;
+import mate.academy.lib.Service;
+import mate.academy.model.Order;
+import mate.academy.model.ShoppingCart;
+import mate.academy.model.User;
+import mate.academy.service.OrderService;
+import mate.academy.service.ShoppingCartService;
+
+@Service
+public class OrderServiceImpl implements OrderService {
+    @Inject
+    private OrderDao orderDao;
+    @Inject
+    private ShoppingCartService shoppingCartService;
+
+    @Override
+    public Order completeOrder(ShoppingCart shoppingCart) {
+        Order order = new Order();
+        order.setUser(shoppingCart.getUser());
+        order.setTickets(new ArrayList<>(shoppingCart.getTickets()));
+        shoppingCartService.clearShoppingCart(shoppingCart);
+        return orderDao.add(order);
+    }
+
+    @Override
+    public List<Order> getOrdersHistory(User user) {
+        return orderDao.getByUser(user);
+    }
+
+}

src/main/resources/hibernate.cfg.xml

@@ -0,0 +1,18 @@
+<hibernate-configuration>
+    <session-factory>
+        <property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
+        <property name="connection.url">jdbc:mysql://127.0.0.1:3306/ticket_app?user=root</property>
+        <property name="connection.username">root</property>
+        <property name="connection.password">password</property>
+        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
+        <property name="show_sql">true</property>
+        <property name="hbm2ddl.auto">create-drop</property>
+        <mapping class="mate.academy.model.CinemaHall"/>
+        <mapping class="mate.academy.model.Movie"/>
+        <mapping class="mate.academy.model.MovieSession"/>
+        <mapping class="mate.academy.model.Order"/>
+        <mapping class="mate.academy.model.ShoppingCart"/>
+        <mapping class="mate.academy.model.Ticket"/>
+        <mapping class="mate.academy.model.User"/>
+    </session-factory>
+</hibernate-configuration>