приколы

src/main/java/com/labwork1/app/student/controller/CinemaDto.java

@@ -0,0 +1,26 @@
+package com.labwork1.app.student.controller;
+
+import com.labwork1.app.student.model.Cinema;
+
+import java.util.List;
+
+public class CinemaDto {
+    private final long id;
+    private final String name;
+    private final List<SessionDto> sessions;
+    public CinemaDto(Cinema cinema) {
+        this.id = cinema.getId();
+        this.name = cinema.getName();
+        this.sessions = cinema.getSessions().stream()
+                .map(SessionDto::new).toList();
+    }
+    public long getId() {
+        return id;
+    }
+    public String getName() {
+        return name;
+    }
+    public List<SessionDto> getSessions() {
+        return sessions;
+    }
+}

src/main/java/com/labwork1/app/student/controller/CustomerDto.java

@@ -17,7 +17,6 @@ public class CustomerDto {
         this.password = customer.getPassword();
         this.orders = customer.getOrders();
     }
-
     public long getId() {
         return id;
     }

src/main/java/com/labwork1/app/student/controller/OrderController.java

@@ -1,10 +1,6 @@
 package com.labwork1.app.student.controller;
 
-import com.labwork1.app.student.model.Customer;
-import com.labwork1.app.student.model.Order;
-import com.labwork1.app.student.service.CustomerService;
 import com.labwork1.app.student.service.OrderService;
-import com.labwork1.app.student.service.TicketService;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
@@ -35,16 +31,11 @@ public class OrderController {
         return new OrderDto(orderService.addOrder(customer));
     }
 
-    /*@PutMapping("/{id}/updcustomer")
-    public OrderDto updateOrderCustomer(@PathVariable Long id,
-                                        @RequestParam("customer") Long customer) {
-        return new OrderDto(orderService.addCustomer(id, customer));
-    }*/
-
     @PutMapping("/{id}")
     public OrderDto updateOrder(@PathVariable Long id,
-                                @RequestParam("ticket") Long ticket) {
+                                @RequestParam("session") Long session,
-        return new OrderDto(orderService.addTicket(id, ticket));
+                                @RequestParam("count") Integer count) {
+        return new OrderDto(orderService.addSession(id, session, count));
     }
 
     @DeleteMapping("/{id}")

src/main/java/com/labwork1/app/student/controller/OrderDto.java

@@ -10,14 +10,15 @@ public class OrderDto {
     private final long id;
     private final Date dateOfPurchase;
     private final Customer customer;
-    private final List<TicketDto> tickets;
+    private final List<OrderSessionDto> sessions;
     public OrderDto(Order order) {
         this.id = order.getId();
         this.dateOfPurchase = order.getDateOfPurchase();
         this.customer = order.getCustomer();
-        this.tickets = order.getTickets()
+        this.sessions = order.getSessions()
                 .stream()
-                .map(x -> new TicketDto(x)).toList();
+                .map(x -> new OrderSessionDto(x.getId().getSessionId(),
+                        x.getId().getOrderId(), x.getCount())).toList();
     }
 
     public long getId() {
@@ -29,7 +30,7 @@ public class OrderDto {
     public Customer getCustomer() {
         return customer;
     }
-    public List<TicketDto> getTickets() {
+    public List<OrderSessionDto> getSessions() {
-        return tickets;
+        return sessions;
     }
 }

src/main/java/com/labwork1/app/student/controller/OrderSessionDto.java

@@ -0,0 +1,24 @@
+package com.labwork1.app.student.controller;
+
+public class OrderSessionDto {
+    private Long sessionId;
+    private Long orderId;
+    private Integer count;
+
+    public OrderSessionDto() {
+    }
+    public OrderSessionDto(Long sessionId, Long orderId, Integer count) {
+        this.sessionId = sessionId;
+        this.orderId = orderId;
+        this.count = count;
+    }
+    public Long getSessionId() {
+        return sessionId;
+    }
+    public Long getOrderId() {
+        return orderId;
+    }
+    public Integer getCount() {
+        return count;
+    }
+}

src/main/java/com/labwork1/app/student/controller/SessionDto.java

@@ -0,0 +1,44 @@
+package com.labwork1.app.student.controller;
+
+import com.labwork1.app.student.model.Session;
+
+import java.sql.Timestamp;
+import java.util.List;
+
+public class SessionDto {
+    private final long id;
+    private Double price;
+    private Timestamp timestamp;
+    private final List<OrderSessionDto> orders;
+    private final CinemaDto cinema;
+    private final int capacity;
+    public SessionDto(Session session) {
+        this.id = session.getId();
+        this.price = session.getPrice();
+        this.timestamp = session.getTimestamp();
+        this.capacity = session.getCapacity();
+        this.cinema = new CinemaDto(session.getCinema());
+        this.orders = session.getOrders()
+                .stream()
+                .map(x -> new OrderSessionDto(x.getId().getSessionId(),
+                        x.getId().getOrderId(), x.getCount())).toList();
+    }
+    public int getCapacity() {
+        return capacity;
+    }
+    public long getId() {
+        return id;
+    }
+    public Double getPrice() {
+        return price;
+    }
+    public Timestamp getTimestamp() {
+        return timestamp;
+    }
+    public List<OrderSessionDto> getOrders() {
+        return orders;
+    }
+    public CinemaDto getCinema() {
+        return cinema;
+    }
+}

src/main/java/com/labwork1/app/student/controller/TicketController.java

@@ -1,55 +0,0 @@
-package com.labwork1.app.student.controller;
-
-import com.labwork1.app.student.service.TicketService;
-import org.springframework.web.bind.annotation.*;
-
-import java.sql.Timestamp;
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.List;
-
-@RestController
-@RequestMapping("/ticket")
-public class TicketController {
-    private final TicketService ticketService;
-
-    public TicketController(TicketService ticketService) {
-        this.ticketService = ticketService;
-    }
-
-    @GetMapping("/{id}")
-    public TicketDto getTicket(@PathVariable Long id) {
-        return new TicketDto(ticketService.findTicket(id));
-    }
-
-    @GetMapping
-    public List<TicketDto> getTickets() {
-        return ticketService.findAllTickets().stream()
-                .map(TicketDto::new)
-                .toList();
-    }
-
-    @PostMapping
-    public TicketDto createTicket(@RequestParam("name") String name,
-                                  @RequestParam("price") String price,
-                                  @RequestParam("timestamp") String timestamp) throws ParseException {
-        SimpleDateFormat format = new SimpleDateFormat();
-        format.applyPattern("yyyy-MM-dd-HH:ss");
-        Date docDate = format.parse(timestamp.replace('T', '-'));
-        return new TicketDto(ticketService.addTicket(name, Double.parseDouble(price),
-                new Timestamp(docDate.getTime())));
-    }
-
-    @PutMapping("/{id}")
-    public TicketDto updateTicket(@PathVariable Long id,
-                                  @RequestParam("name") String name,
-                                  @RequestParam("price") String price) {
-        return new TicketDto(ticketService.updateTicket(id, name, Double.parseDouble(price)));
-    }
-
-    @DeleteMapping("/{id}")
-    public TicketDto deleteTicket(@PathVariable Long id) {
-        return new TicketDto(ticketService.deleteTicket(id));
-    }
-}

src/main/java/com/labwork1/app/student/controller/TicketDto.java

@@ -1,30 +0,0 @@
-package com.labwork1.app.student.controller;
-
-import com.labwork1.app.student.model.Ticket;
-
-import java.sql.Timestamp;
-
-public class TicketDto {
-    private final long id;
-    private String name;
-    private Double price;
-    private Timestamp timestamp;
-    public TicketDto(Ticket ticket) {
-        this.id = ticket.getId();
-        this.name = ticket.getName();
-        this.price = ticket.getPrice();
-        this.timestamp = ticket.getTimestamp();
-    }
-    public long getId() {
-        return id;
-    }
-    public String getName() {
-        return name;
-    }
-    public Double getPrice() {
-        return price;
-    }
-    public Timestamp getTimestamp() {
-        return timestamp;
-    }
-}

src/main/java/com/labwork1/app/student/model/Cinema.java

@@ -0,0 +1,52 @@
+package com.labwork1.app.student.model;
+
+import jakarta.persistence.*;
+import jakarta.validation.constraints.NotBlank;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+public class Cinema {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    @NotBlank(message = "name can't be null or empty")
+    @Column
+    private String name;
+    @OneToMany(fetch = FetchType.EAGER, mappedBy = "cinema", cascade = CascadeType.REMOVE)
+    private List<Session> sessions;
+    public Cinema() {
+    }
+
+    public Cinema(String name) {
+        this.name = name;
+        this.sessions = new ArrayList<>();
+    }
+
+    public List<Session> getSessions() {
+        return sessions;
+    }
+
+    public void setSession(Session session) {
+        if (session.getCinema().equals(this)) {
+            this.sessions.add(session);
+        }
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

src/main/java/com/labwork1/app/student/model/Order.java

@@ -1,7 +1,6 @@
 package com.labwork1.app.student.model;
 
 import jakarta.persistence.*;
-import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 
 import java.sql.Date;
@@ -18,15 +17,11 @@ public class Order {
     @NotNull(message = "dateOfPurchase can't be null or empty")
     @Temporal(TemporalType.DATE)
     private Date dateOfPurchase;
-    @NotNull(message = "customer can't be null or empty")
     @ManyToOne(fetch = FetchType.EAGER)
     @JoinColumn(name = "customer_fk")
     private Customer customer;
-    @ManyToMany(fetch = FetchType.EAGER)
+    @OneToMany(mappedBy = "order", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
-    @JoinTable(name = "order_ticket",
+    private List<OrderSession> sessions;
-            joinColumns = @JoinColumn(name = "order_fk"),
-            inverseJoinColumns = @JoinColumn(name = "ticket_fk"))
-    private List<Ticket> tickets;
 
     public Order() {
     }
@@ -35,13 +30,17 @@ public class Order {
         this.dateOfPurchase = dateOfPurchase;
     }
 
-    public void addTicket(Ticket ticket) {
+    public void addSession(OrderSession orderSession) {
-        if (tickets == null)
+        if (sessions == null) {
-            tickets = new ArrayList<>();
+            sessions = new ArrayList<>();
-        tickets.add(ticket);
-        if (ticket.getOrders() == null) {
-            ticket.setOrder(this);
         }
+        if (!sessions.contains(orderSession))
+            this.sessions.add(orderSession);
+    }
+
+    public void removeSession(OrderSession orderSession){
+        if (sessions.contains(orderSession))
+            this.sessions.remove(orderSession);
     }
 
     @Override
@@ -88,11 +87,11 @@ public class Order {
         }
     }
 
-    public List<Ticket> getTickets() {
+    public List<OrderSession> getSessions() {
-        return tickets;
+        return sessions;
     }
 
-    public void setTickets(List<Ticket> tickets) {
+    public void setSessions(List<OrderSession> sessions) {
-        this.tickets = tickets;
+        this.sessions = sessions;
     }
 }

src/main/java/com/labwork1/app/student/model/OrderSession.java

@@ -0,0 +1,64 @@
+package com.labwork1.app.student.model;
+
+import jakarta.persistence.*;
+
+@Entity
+@Table(name = "order_session")
+public class OrderSession {
+    @EmbeddedId
+    private OrderSessionKey id;
+    @ManyToOne
+    @MapsId("sessionId")
+    @JoinColumn(name = "session_id")
+    private Session session;
+    @ManyToOne
+    @MapsId("orderId")
+    @JoinColumn(name = "order_id")
+    private Order order;
+    @Column(name = "count")
+    private Integer count;
+
+    public OrderSession() {
+    }
+
+    public OrderSession(Order order, Session session, Integer count) {
+        this.order = order;
+        this.id = new OrderSessionKey(session.getId(), order.getId());
+        this.id.setOrderId(order.getId());
+        this.id.setSessionId(session.getId());
+        this.session = session;
+        this.count = count;
+    }
+
+    public OrderSessionKey getId() {
+        return id;
+    }
+
+    public void setId(OrderSessionKey id) {
+        this.id = id;
+    }
+
+    public Order getOrder() {
+        return order;
+    }
+
+    public void setOrder(Order order) {
+        this.order = order;
+    }
+
+    public Session getSession() {
+        return session;
+    }
+
+    public void setSession(Session session) {
+        this.session = session;
+    }
+
+    public Integer getCount() {
+        return count;
+    }
+
+    public void setCount(Integer count) {
+        this.count = count;
+    }
+}

src/main/java/com/labwork1/app/student/model/OrderSessionKey.java

@@ -0,0 +1,48 @@
+package com.labwork1.app.student.model;
+
+import jakarta.persistence.Embeddable;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+@Embeddable
+public class OrderSessionKey implements Serializable {
+    private Long sessionId;
+    private Long orderId;
+
+    public OrderSessionKey() {
+    }
+
+    public OrderSessionKey(Long sessionId, Long orderId) {
+        this.sessionId = sessionId;
+        this.orderId = orderId;
+    }
+
+    public Long getSessionId() {
+        return sessionId;
+    }
+
+    public void setSessionId(Long sessionId) {
+        this.sessionId = sessionId;
+    }
+
+    public Long getOrderId() {
+        return orderId;
+    }
+
+    public void setOrderId(Long orderId) {
+        this.orderId = orderId;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof OrderSessionKey that)) return false;
+        return Objects.equals(getSessionId(), that.getSessionId()) && Objects.equals(getOrderId(), that.getOrderId());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getSessionId(), getOrderId());
+    }
+}

src/main/java/com/labwork1/app/student/model/Session.java

@@ -0,0 +1,124 @@
+package com.labwork1.app.student.model;
+
+import jakarta.persistence.*;
+import jakarta.validation.constraints.NotNull;
+
+import java.sql.Timestamp;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+@Entity
+public class Session {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    @NotNull(message = "price can't be null or empty")
+    private Double price;
+    @NotNull(message = "timestamp can't be null or empty")
+    @Column
+    @Temporal(TemporalType.TIMESTAMP)
+    private Timestamp timestamp;
+    @OneToMany(mappedBy = "session", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
+    private List<OrderSession> orders;
+    @ManyToOne(fetch = FetchType.EAGER)
+    @JoinColumn(name = "cinema_fk")
+    private Cinema cinema;
+    @NotNull(message = "capacity can't be null or empty")
+    @Column
+    private Integer capacity;
+    @NotNull(message = "maxCount can't be null or empty")
+    @Column
+    private Integer maxCount;
+
+    public Session() {
+    }
+
+    public Integer getMaxCount() {
+        return maxCount;
+    }
+
+    public Session(Double price, Timestamp timestamp, Integer maxCount) {
+        this.price = price;
+        this.timestamp = timestamp;
+        this.maxCount = maxCount;
+        this.capacity = maxCount;
+    }
+
+    public Cinema getCinema() {
+        return cinema;
+    }
+    public void setCinema(Cinema cinema) {
+        this.cinema = cinema;
+        if (!cinema.getSessions().contains(this)) {
+            cinema.setSession(this);
+        }
+    }
+    public void addOrder(OrderSession orderSession){
+        if (orders == null){
+            orders = new ArrayList<>();
+        }
+        if (!orders.contains(orderSession)) {
+            this.orders.add(orderSession);
+        }
+    }
+
+    public void removeOrder(OrderSession orderSession){
+        if (orders.contains(orderSession))
+            this.orders.remove(orderSession);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Session session = (Session) o;
+        return Objects.equals(id, session.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+
+    @Override
+    public String toString() {
+        return "Session {" +
+                "id=" + id +
+                ", price='" + price + '\'' +
+                ", timestamp='" + timestamp.toString() + '\'' +
+                '}';
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public Double getPrice() {
+        return price;
+    }
+
+    public void setPrice(Double price) {
+        this.price = price;
+    }
+
+    public Timestamp getTimestamp() {
+        return timestamp;
+    }
+
+    public void setTimestamp(Timestamp timestamp) {
+        this.timestamp = timestamp;
+    }
+
+    public List<OrderSession> getOrders() {
+        return orders;
+    }
+
+    public Integer getCapacity() {
+        return capacity;
+    }
+
+    public void setCapacity(Integer capacity) {
+        this.capacity = capacity;
+    }
+}

src/main/java/com/labwork1/app/student/model/Ticket.java

@@ -1,95 +0,0 @@
-package com.labwork1.app.student.model;
-
-import jakarta.persistence.*;
-import jakarta.validation.constraints.*;
-
-import java.sql.Timestamp;
-import java.util.List;
-import java.util.Objects;
-
-@Entity
-public class Ticket {
-    @Id
-    @GeneratedValue(strategy = GenerationType.AUTO)
-    private Long id;
-    @NotBlank(message = "name can't be null or empty")
-    private String name;
-    @NotNull(message = "price can't be null or empty")
-    private Double price;
-    @NotNull(message = "timestamp can't be null or empty")
-    @Temporal(TemporalType.TIMESTAMP)
-    private Timestamp timestamp;
-    @ManyToMany(fetch = FetchType.EAGER, mappedBy = "tickets")
-    private List<Order> orders;
-
-    public Ticket() {
-    }
-
-    public Ticket(String name, Double price, Timestamp timestamp) {
-        this.name = name;
-        this.price = price;
-        this.timestamp = timestamp;
-    }
-
-    public void setOrder(Order order) {
-        if (!order.getTickets().contains(this)) {
-            order.getTickets().add(this);
-        }
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-        Ticket ticket = (Ticket) o;
-        return Objects.equals(id, ticket.id);
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(id);
-    }
-
-    @Override
-    public String toString() {
-        return "Ticket {" +
-                "id=" + id +
-                ", name='" + name + '\'' +
-                ", price='" + price + '\'' +
-                ", timestamp='" + timestamp.toString() + '\'' +
-                '}';
-    }
-
-    public Long getId() {
-        return id;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    public Double getPrice() {
-        return price;
-    }
-
-    public void setPrice(Double price) {
-        this.price = price;
-    }
-
-    public Timestamp getTimestamp() {
-        return timestamp;
-    }
-
-    public void setTimestamp(Timestamp timestamp) {
-        this.timestamp = timestamp;
-    }
-
-    public List<Order> getOrders() {
-        return orders;
-    }
-
-}

src/main/java/com/labwork1/app/student/repository/CinemaRepository.java

@@ -1,7 +1,7 @@
 package com.labwork1.app.student.repository;
 
-import com.labwork1.app.student.model.Ticket;
+import com.labwork1.app.student.model.Cinema;
 import org.springframework.data.jpa.repository.JpaRepository;
 
-public interface TicketRepository extends JpaRepository<Ticket, Long> {
+public interface CinemaRepository extends JpaRepository<Cinema, Long> {
 }

src/main/java/com/labwork1/app/student/repository/CustomerRepository.java

@@ -3,5 +3,5 @@ package com.labwork1.app.student.repository;
 import com.labwork1.app.student.model.Customer;
 import org.springframework.data.jpa.repository.JpaRepository;
 
-public interface CustomerRepository extends JpaRepository<Customer, Long> {
+public interface CustomerRepository extends JpaRepository<Customer, Long>, CustomerRepositoryExtension {
 }

src/main/java/com/labwork1/app/student/repository/CustomerRepositoryExtension.java

@@ -0,0 +1,10 @@
+package com.labwork1.app.student.repository;
+
+import com.labwork1.app.student.model.Customer;
+
+import java.util.Optional;
+
+public interface CustomerRepositoryExtension {
+    Optional<Customer> deleteCustomerOrders(Long id);
+    void deleteAllCustomers();
+}

src/main/java/com/labwork1/app/student/repository/OrderRepository.java

@@ -3,5 +3,5 @@ package com.labwork1.app.student.repository;
 import com.labwork1.app.student.model.Order;
 import org.springframework.data.jpa.repository.JpaRepository;
 
-public interface OrderRepository extends JpaRepository<Order, Long> {
+public interface OrderRepository extends JpaRepository<Order, Long>, OrderRepositoryExtension {
 }

src/main/java/com/labwork1/app/student/repository/OrderRepositoryExtension.java

@@ -0,0 +1,11 @@
+package com.labwork1.app.student.repository;
+
+import com.labwork1.app.student.model.Order;
+
+import java.util.Optional;
+
+public interface OrderRepositoryExtension {
+    Order addOrder(Order order, Long customerId);
+    Optional<Order> addSession(Long id, Long session, Integer count);
+    Optional<Order> deleteSessionInOrder(Long id, Long session, Integer count);
+}

src/main/java/com/labwork1/app/student/repository/SessionRepository.java

@@ -0,0 +1,7 @@
+package com.labwork1.app.student.repository;
+
+import com.labwork1.app.student.model.Session;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface SessionRepository extends JpaRepository<Session, Long>, SessionRepositoryExtension {
+}

src/main/java/com/labwork1/app/student/repository/SessionRepositoryExtension.java

@@ -0,0 +1,12 @@
+package com.labwork1.app.student.repository;
+
+import com.labwork1.app.student.model.Session;
+
+import java.util.List;
+
+public interface SessionRepositoryExtension {
+    Session addSession(Session session, Long cinemaId);
+    Session deleteSession(Long id);
+    void deleteAllSessions();
+    List<Session> findAllSessionsWithCapacity();
+}

src/main/java/com/labwork1/app/student/repository/impl/CustomerRepositoryImpl.java

@@ -0,0 +1,67 @@
+package com.labwork1.app.student.repository.impl;
+
+import com.labwork1.app.student.model.Customer;
+import com.labwork1.app.student.model.Order;
+import com.labwork1.app.student.model.OrderSession;
+import com.labwork1.app.student.model.Session;
+import com.labwork1.app.student.repository.CustomerRepository;
+import com.labwork1.app.student.repository.CustomerRepositoryExtension;
+import com.labwork1.app.student.repository.OrderRepository;
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Lazy;
+
+import java.util.List;
+import java.util.Optional;
+
+public class CustomerRepositoryImpl implements CustomerRepositoryExtension {
+    @Autowired
+    @Lazy
+    private CustomerRepository customerRepository;
+    @Autowired
+    @Lazy
+    private OrderRepository orderRepository;
+
+    @PersistenceContext
+    private EntityManager em;
+
+    @Override
+    public Optional<Customer> deleteCustomerOrders(Long id) {
+        final Optional<Customer> currentCustomer = customerRepository.findById(id);
+        if (currentCustomer.isPresent()) {
+            final List<Order> currentCustomerOrders = currentCustomer.get().getOrders();
+
+            for (int i = 0; i < currentCustomerOrders.size(); i++) {
+                final Optional<Order> tempOrder = orderRepository.findById(currentCustomerOrders.get(i).getId());
+                if (tempOrder.isPresent()) {
+                    final Order currentOrder = tempOrder.get();
+                    List<OrderSession> orderSessionList = em
+                            .createQuery("select p from OrderSession p where p.id.orderId = :id", OrderSession.class)
+                            .setParameter("id", id)
+                            .getResultList();
+                    for (int j = 0; j < orderSessionList.size(); j++) {
+                        final Session currentSession = orderSessionList.get(j).getSession();
+                        currentOrder.getSessions().remove(orderSessionList.get(j));
+                        currentSession.getOrders().remove(orderSessionList.get(j));
+                        em.remove(orderSessionList.get(j));
+                        em.merge(currentSession);
+                    }
+                    em.merge(currentOrder);
+                }
+            }
+            em.remove(currentCustomer.get());
+        }
+        return currentCustomer;
+    }
+
+    @Override
+    public void deleteAllCustomers() {
+        List<Customer> customers = em
+                .createQuery("select c from Customer c", Customer.class)
+                .getResultList();
+        for (var customer : customers) {
+            deleteCustomerOrders(customer.getId());
+        }
+    }
+}

src/main/java/com/labwork1/app/student/repository/impl/OrderRepositoryImpl.java

@@ -0,0 +1,100 @@
+package com.labwork1.app.student.repository.impl;
+
+import com.labwork1.app.student.model.*;
+import com.labwork1.app.student.repository.CustomerRepository;
+import com.labwork1.app.student.repository.OrderRepository;
+import com.labwork1.app.student.repository.OrderRepositoryExtension;
+import com.labwork1.app.student.repository.SessionRepository;
+import com.labwork1.app.student.service.CustomerNotFoundException;
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Lazy;
+
+import java.util.Optional;
+
+public class OrderRepositoryImpl implements OrderRepositoryExtension {
+    @Autowired
+    @Lazy
+    private CustomerRepository customerRepository;
+    @Autowired
+    @Lazy
+    private OrderRepository orderRepository;
+    @Autowired
+    @Lazy
+    private SessionRepository sessionRepository;
+    @PersistenceContext
+    private EntityManager em;
+    @Override
+    public Order addOrder(Order order, Long customerId) {
+        final Optional<Customer> customer = customerRepository.findById(customerId);
+        if (customer.isEmpty()) {
+            throw new CustomerNotFoundException(customerId);
+        }
+        order.setCustomer(customer.get());
+        em.persist(order);
+        em.merge(customer.get());
+        return order;
+    }
+
+    @Override
+    public Optional<Order> addSession(Long id, Long session, Integer count) {
+        if (session <= 0 || count <= 0) {
+            throw new IllegalArgumentException("addOrder empty fields");
+        }
+        Optional<Order> optionalOrder = orderRepository.findById(id);
+        Optional<Session> optionalSession = sessionRepository.findById(session);
+        if (optionalOrder.isEmpty() || optionalSession.isEmpty()) {
+            return optionalOrder;
+        }
+        final Session currentSession = optionalSession.get();
+        final Order currentOrder = optionalOrder.get();
+        OrderSession orderSession = em.find(OrderSession.class,
+                new OrderSessionKey(currentSession.getId(), currentOrder.getId()));
+
+        if (currentSession.getCapacity() < count ||
+                (orderSession != null && orderSession.getCount() + count > currentSession.getCapacity())) {
+            throw new IllegalArgumentException("No more tickets in session. Capacity - "+currentSession.getCapacity()+". Count - "+count);
+        }
+        if (orderSession == null)
+            orderSession = new OrderSession(currentOrder, currentSession, count);
+        else if (orderSession.getCount() + count <= currentSession.getCapacity())
+            orderSession.setCount(orderSession.getCount() + count);
+
+        currentOrder.addSession(orderSession);
+        currentSession.addOrder(orderSession);
+        currentSession.setCapacity(currentSession.getCapacity() - count);
+        em.merge(currentSession);
+        em.merge(currentOrder);
+        return orderRepository.findById(id);
+    }
+
+    @Override
+    public Optional<Order> deleteSessionInOrder(Long id, Long session, Integer count) {
+        final Optional<Order> optionalOrder = orderRepository.findById(id);
+        final Optional<Session> optionalSession = sessionRepository.findById(session);
+        if (optionalOrder.isEmpty() || optionalSession.isEmpty()) {
+            return optionalOrder;
+        }
+        final Order currentOrder = optionalOrder.get();
+        final Session currentSession = optionalSession.get();
+
+        OrderSession orderSession = em.find(OrderSession.class, new OrderSessionKey(session, id));
+        if (orderSession == null)
+            return optionalOrder;
+
+        if (count >= orderSession.getCount()) {
+            currentOrder.getSessions().remove(orderSession);
+            currentSession.getOrders().remove(orderSession);
+            currentSession.setCapacity(currentSession.getCapacity() + orderSession.getCount());
+            em.remove(orderSession);
+        } else {
+            orderSession.setCount(orderSession.getCount() - count);
+            currentSession.setCapacity(currentSession.getMaxCount() - orderSession.getCount());
+            em.merge(orderSession);
+            em.merge(currentSession);
+        }
+
+        return orderRepository.findById(id);
+    }
+}

src/main/java/com/labwork1/app/student/repository/impl/SessionRepositoryImpl.java

@@ -0,0 +1,74 @@
+package com.labwork1.app.student.repository.impl;
+
+import com.labwork1.app.student.model.Cinema;
+import com.labwork1.app.student.model.OrderSession;
+import com.labwork1.app.student.model.Session;
+import com.labwork1.app.student.repository.CinemaRepository;
+import com.labwork1.app.student.repository.SessionRepository;
+import com.labwork1.app.student.repository.SessionRepositoryExtension;
+import com.labwork1.app.student.service.CinemaNotFoundException;
+import com.labwork1.app.student.service.SessionNotFoundException;
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Lazy;
+
+import java.util.List;
+import java.util.Optional;
+
+public class SessionRepositoryImpl implements SessionRepositoryExtension {
+    @Autowired
+    @Lazy
+    private SessionRepository sessionRepository;
+    @Autowired
+    @Lazy
+    private CinemaRepository cinemaRepository;
+    @PersistenceContext
+    private EntityManager em;
+    @Override
+    public Session addSession(Session session, Long cinemaId) {
+        if (session == null) return null;
+        final Optional<Cinema> cinema = cinemaRepository.findById(cinemaId);
+        if (cinema.isEmpty()) {
+            throw new CinemaNotFoundException(cinemaId);
+        }
+        session.setCinema(cinema.get());
+        em.persist(session);
+        em.merge(cinema.get());
+        return session;
+    }
+
+    @Override
+    public Session deleteSession(Long id) {
+        final Optional<Session> optionalSession = sessionRepository.findById(id);
+        if (optionalSession.isEmpty()) {
+            throw new SessionNotFoundException(id);
+        }
+        final Session currentSession = optionalSession.get();
+        int size = currentSession.getOrders().size();
+        for (int i = 0; i < size; i++) {
+            OrderSession temp = currentSession.getOrders().get(0);
+            temp.getSession().removeOrder(temp);
+            temp.getOrder().removeSession(temp);
+            em.remove(temp);
+        }
+        em.remove(currentSession);
+        return currentSession;
+    }
+
+    @Override
+    public void deleteAllSessions() {
+        List<Session> sessions = em
+                .createQuery("select s from Session s", Session.class)
+                .getResultList();
+        for (var session : sessions) {
+            deleteSession(session.getId());
+        }
+    }
+
+    @Override
+    public List<Session> findAllSessionsWithCapacity() {
+        return em.createQuery("select t from Session t where capacity > 0", Session.class)
+                .getResultList();
+    }
+}

src/main/java/com/labwork1/app/student/service/CinemaNotFoundException.java

@@ -0,0 +1,7 @@
+package com.labwork1.app.student.service;
+
+public class CinemaNotFoundException extends RuntimeException {
+    public CinemaNotFoundException(Long id) {
+        super(String.format("Cinema with id [%s] is not found", id));
+    }
+}

src/main/java/com/labwork1/app/student/service/CinemaService.java

@@ -0,0 +1,58 @@
+package com.labwork1.app.student.service;
+
+import com.labwork1.app.student.model.Cinema;
+import com.labwork1.app.student.repository.CinemaRepository;
+import com.labwork1.app.util.validation.ValidatorUtil;
+import jakarta.transaction.Transactional;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class CinemaService {
+    private final CinemaRepository cinemaRepository;
+    private final ValidatorUtil validatorUtil;
+    public CinemaService(CinemaRepository cinemaRepository, ValidatorUtil validatorUtil) {
+        this.cinemaRepository = cinemaRepository;
+        this.validatorUtil = validatorUtil;
+    }
+
+    @Transactional
+    public Cinema addCinema(String name) {
+        final Cinema cinema = new Cinema(name);
+        validatorUtil.validate(cinema);
+        return cinemaRepository.save(cinema);
+    }
+
+    @Transactional
+    public Cinema findCinema(Long id) {
+        final Optional<Cinema> cinema = cinemaRepository.findById(id);
+        return cinema.orElseThrow(() -> new CinemaNotFoundException(id));
+    }
+
+    @Transactional
+    public List<Cinema> findAllCinemas() {
+        return cinemaRepository.findAll();
+    }
+
+    @Transactional
+    public Cinema updateCinema(Long id, String name) {
+        final Cinema currentCinema = findCinema(id);
+        currentCinema.setName(name);
+        validatorUtil.validate(currentCinema);
+        return cinemaRepository.save(currentCinema);
+    }
+
+    @Transactional
+    public Cinema deleteCinema(Long id) {
+        final Cinema currentCinema = findCinema(id);
+        cinemaRepository.delete(currentCinema);
+        return currentCinema;
+    }
+
+    @Transactional
+    public void deleteAllCinemas() {
+        cinemaRepository.deleteAll();
+    }
+}

src/main/java/com/labwork1/app/student/service/CustomerService.java

@@ -49,13 +49,12 @@ public class CustomerService {
 
     @Transactional
     public Customer deleteCustomer(Long id) {
-        final Customer currentCustomer = findCustomer(id);
+        final Optional<Customer> customer = customerRepository.deleteCustomerOrders(id);
-        customerRepository.delete(currentCustomer);
+        return customer.orElseThrow(() -> new CustomerNotFoundException(id));
-        return currentCustomer;
     }
 
     @Transactional
     public void deleteAllCustomers() {
-        customerRepository.deleteAll();
+        customerRepository.deleteAllCustomers();
     }
 }

src/main/java/com/labwork1/app/student/service/OrderService.java

@@ -1,12 +1,9 @@
 package com.labwork1.app.student.service;
 
-import com.labwork1.app.student.model.Customer;
 import com.labwork1.app.student.model.Order;
-import com.labwork1.app.student.model.Ticket;
-import com.labwork1.app.student.repository.CustomerRepository;
 import com.labwork1.app.student.repository.OrderRepository;
-import com.labwork1.app.student.repository.TicketRepository;
 import com.labwork1.app.util.validation.ValidatorUtil;
+import jakarta.persistence.EntityNotFoundException;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -17,59 +14,24 @@ import java.util.Optional;
 @Service
 public class OrderService {
     private final OrderRepository orderRepository;
-    private final TicketRepository ticketRepository;
-    private final CustomerRepository customerRepository;
     private final ValidatorUtil validatorUtil;
 
-    public OrderService(OrderRepository orderRepository,
+    public OrderService(OrderRepository orderRepository, ValidatorUtil validatorUtil) {
-                        TicketRepository ticketRepository,
-                        CustomerRepository customerRepository,
-                        ValidatorUtil validatorUtil) {
         this.orderRepository = orderRepository;
-        this.ticketRepository = ticketRepository;
-        this.customerRepository = customerRepository;
         this.validatorUtil = validatorUtil;
     }
 
     @Transactional
     public Order addOrder(Long customer_id) {
         final Order order = new Order(new Date(System.currentTimeMillis()));
-        final Customer customer = findCustomer(customer_id);
-        order.setCustomer(customer);
         validatorUtil.validate(order);
-        return orderRepository.save(order);
+        return orderRepository.addOrder(order, customer_id);
-    }
-
-    /*@Transactional
-    public Order addCustomer(Long id, Long customer_id) {
-        final Order order = findOrder(id);
-        final Customer customer = customerRepository.findById(customer_id).get();
-        order.setCustomer(customer);
-        validatorUtil.validate(order);
-        return order;
-    }*/
-
-    @Transactional(readOnly = true)
-    Customer findCustomer(Long customer_id) {
-        final Optional<Customer> customer = customerRepository.findById(customer_id);
-        return customer.orElseThrow(() -> new CustomerNotFoundException(customer_id));
-    }
-
-    @Transactional(readOnly = true)
-    Ticket findTicket(Long ticket_id) {
-        final Optional<Ticket> ticket = ticketRepository.findById(ticket_id);
-        return ticket.orElseThrow(() -> new TicketNotFoundException(ticket_id));
     }
 
     @Transactional
-    public Order addTicket(Long id, Long ticket) {
+    public Order addSession(Long id, Long session, Integer count) {
-        final Order currentOrder = findOrder(id);
+        final Optional<Order> order = orderRepository.addSession(id, session, count);
-        final Ticket currentTicket = findTicket(ticket);
+        return order.orElseThrow(() -> new EntityNotFoundException("orderId: " + id + ", sessionId: " + session));
-        currentOrder.addTicket(currentTicket);
-        currentTicket.setOrder(currentOrder);
-        validatorUtil.validate(currentOrder);
-        ticketRepository.save(currentTicket);
-        return orderRepository.save(currentOrder);
     }
 
     @Transactional(readOnly = true)
@@ -91,13 +53,9 @@ public class OrderService {
     }
 
     @Transactional
-    public Order deleteTicketInOrder(Long id, Ticket ticket) {
+    public Order deleteSessionInOrder(Long id, Long session, Integer count) {
-        final Order currentOrder = findOrder(id);
+        final Optional<Order> order = orderRepository.deleteSessionInOrder(id, session, count);
-        final Optional<Ticket> currentTicket = ticketRepository.findById(id);
+        return order.orElseThrow(() -> new EntityNotFoundException("orderId: " + id + ", sessionId: " + session));
-        currentTicket.ifPresent(x -> x.getOrders().remove(currentOrder));
-        orderRepository.findById(currentOrder.getId())
-                .ifPresent(x -> x.getTickets().remove(currentTicket));
-        return currentOrder;
     }
 
     @Transactional

src/main/java/com/labwork1/app/student/service/SessionNotFoundException.java

@@ -0,0 +1,7 @@
+package com.labwork1.app.student.service;
+
+public class SessionNotFoundException extends RuntimeException {
+    public SessionNotFoundException(Long id) {
+        super(String.format("Session with id [%s] is not found", id));
+    }
+}

src/main/java/com/labwork1/app/student/service/SessionService.java

@@ -0,0 +1,63 @@
+package com.labwork1.app.student.service;
+
+import com.labwork1.app.student.model.Session;
+import com.labwork1.app.student.repository.SessionRepository;
+import com.labwork1.app.util.validation.ValidatorUtil;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.sql.Timestamp;
+import java.util.List;
+import java.util.Optional;
+
+@Service
+public class SessionService {
+    private final SessionRepository sessionRepository;
+    private final ValidatorUtil validatorUtil;
+    public SessionService(SessionRepository sessionRepository,
+                          ValidatorUtil validatorUtil) {
+        this.sessionRepository = sessionRepository;
+        this.validatorUtil = validatorUtil;
+    }
+
+    @Transactional
+    public Session addSession(Double price, Timestamp date, Long cinemaId, Integer capacity) {
+        final Session session = new Session(price, date, capacity);
+        validatorUtil.validate(session);
+        return sessionRepository.addSession(session, cinemaId);
+    }
+
+    @Transactional(readOnly = true)
+    public Session findSession(Long id) {
+        final Optional<Session> session = sessionRepository.findById(id);
+        return session.orElseThrow(() -> new SessionNotFoundException(id));
+    }
+
+    @Transactional(readOnly = true)
+    public List<Session> findAllSessions() {
+        return sessionRepository.findAll();
+    }
+
+    @Transactional
+    public Session updateSession(Long id, Double price) {
+        final Session currentSession = findSession(id);
+        currentSession.setPrice(price);
+        validatorUtil.validate(currentSession);
+        return sessionRepository.save(currentSession);
+    }
+
+    @Transactional
+    public Session deleteSession(Long id) {
+        return sessionRepository.deleteSession(id);
+    }
+
+    @Transactional
+    public void deleteAllSessions() {
+        sessionRepository.deleteAllSessions();
+    }
+
+    @Transactional
+    public List<Session> findAllSessionsWithCapacity() {
+        return sessionRepository.findAllSessionsWithCapacity();
+    }
+}

src/main/java/com/labwork1/app/student/service/TicketNotFoundException.java

@@ -1,7 +0,0 @@
-package com.labwork1.app.student.service;
-
-public class TicketNotFoundException extends RuntimeException {
-    public TicketNotFoundException(Long id) {
-        super(String.format("Ticket with id [%s] is not found", id));
-    }
-}

src/main/java/com/labwork1/app/student/service/TicketService.java

@@ -1,62 +0,0 @@
-package com.labwork1.app.student.service;
-
-import com.labwork1.app.student.model.Ticket;
-import com.labwork1.app.student.repository.TicketRepository;
-import com.labwork1.app.util.validation.ValidatorUtil;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
-import java.sql.Timestamp;
-import java.util.List;
-import java.util.Optional;
-
-@Service
-public class TicketService {
-    private final TicketRepository ticketRepository;
-    private final ValidatorUtil validatorUtil;
-
-    public TicketService(TicketRepository ticketRepository,
-                           ValidatorUtil validatorUtil) {
-        this.ticketRepository = ticketRepository;
-        this.validatorUtil = validatorUtil;
-    }
-
-    @Transactional
-    public Ticket addTicket(String name, Double price, Timestamp date) {
-        final Ticket ticket = new Ticket(name, price, date);
-        validatorUtil.validate(ticket);
-        return ticketRepository.save(ticket);
-    }
-
-    @Transactional(readOnly = true)
-    public Ticket findTicket(Long id) {
-        final Optional<Ticket> ticket = ticketRepository.findById(id);
-        return ticket.orElseThrow(() -> new TicketNotFoundException(id));
-    }
-
-    @Transactional(readOnly = true)
-    public List<Ticket> findAllTickets() {
-        return ticketRepository.findAll();
-    }
-
-    @Transactional
-    public Ticket updateTicket(Long id, String name, Double price) {
-        final Ticket currentTicket = findTicket(id);
-        currentTicket.setName(name);
-        currentTicket.setPrice(price);
-        validatorUtil.validate(currentTicket);
-        return ticketRepository.save(currentTicket);
-    }
-
-    @Transactional
-    public Ticket deleteTicket(Long id) {
-        final Ticket currentTicket = findTicket(id);
-        ticketRepository.delete(currentTicket);
-        return currentTicket;
-    }
-
-    @Transactional
-    public void deleteAllTickets() {
-        ticketRepository.deleteAll();
-    }
-}

src/main/java/com/labwork1/app/util/error/AdviceController.java

@@ -2,7 +2,6 @@ package com.labwork1.app.util.error;
 
 import com.labwork1.app.student.service.CustomerNotFoundException;
 import com.labwork1.app.student.service.OrderNotFoundException;
-import com.labwork1.app.student.service.TicketNotFoundException;
 import com.labwork1.app.util.validation.ValidationException;
 import org.springframework.context.support.DefaultMessageSourceResolvable;
 import org.springframework.http.HttpStatus;
@@ -18,7 +17,6 @@ public class AdviceController {
     @ExceptionHandler({
             CustomerNotFoundException.class,
             OrderNotFoundException.class,
-            TicketNotFoundException.class,
             ValidationException.class
     })
     public ResponseEntity<Object> handleException(Throwable e) {

src/test/java/com/labwork1/app/JpaCustomerTests.java

@@ -2,20 +2,18 @@ package com.labwork1.app;
 
 import com.labwork1.app.student.model.Customer;
 import com.labwork1.app.student.model.Order;
-import com.labwork1.app.student.model.Ticket;
+import com.labwork1.app.student.model.Session;
-import com.labwork1.app.student.service.CustomerService;
+import com.labwork1.app.student.service.*;
-import com.labwork1.app.student.service.OrderService;
+import com.labwork1.app.student.model.Cinema;
-import com.labwork1.app.student.service.TicketService;
-import jakarta.persistence.EntityNotFoundException;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.dao.InvalidDataAccessApiUsageException;
 
 import java.sql.Timestamp;
-import java.util.List;
 
 @SpringBootTest
 public class JpaCustomerTests {
@@ -23,114 +21,99 @@ public class JpaCustomerTests {
     @Autowired
     private CustomerService customerService;
     @Autowired
-    private TicketService ticketService;
+    private SessionService sessionService;
     @Autowired
     private OrderService orderService;
+    @Autowired
+    private CinemaService cinemaService;
 
-/*    @Test
+    @Test
     void testOrder() {
-        ticketService.deleteAllTickets();
+        sessionService.deleteAllSessions();
+        cinemaService.deleteAllCinemas();
         orderService.deleteAllOrders();
         customerService.deleteAllCustomers();
-        // 2 билета
+        // 2 кино
-        final Ticket ticket1 = ticketService.addTicket("Меню", 300.0, new Timestamp(System.currentTimeMillis()));
+        final Cinema cinema1 = cinemaService.addCinema("Меню");
-        final Ticket ticket2 = ticketService.addTicket("Аватар", 200.0, new Timestamp(System.currentTimeMillis()));
+        final Cinema cinema2 = cinemaService.addCinema("Аватар");
+
+        // 2 сеанса
+        final Session session1 = sessionService.addSession(300.0,
+                new Timestamp(System.currentTimeMillis()), cinema1.getId(), 10);
+        final Session session2 = sessionService.addSession( 200.0,
+                new Timestamp(System.currentTimeMillis()), cinema1.getId(), 10);
+        // проверка 2 сеанса у 1 кино
+        Assertions.assertEquals(cinemaService
+                .findCinema(cinema1.getId()).getSessions().size(), 2);
         // 1 покупатель
         final Customer customer1 = customerService.addCustomer("Родион", "Иванов");
         // 1 заказ, 1 копия заказа
-        final Order order0 = orderService.addOrder(customerService.findCustomer(customer1.getId()));
+        final Order order0 = orderService.addOrder(customerService.findCustomer(customer1.getId()).getId());
         final Order order1 = orderService.findOrder(order0.getId());
         Assertions.assertEquals(order0, order1);
 
+        // у клиента точно есть заказ?
         Assertions.assertEquals(customerService
                 .findCustomer(customer1.getId()).getOrders().size(), 1);
         // 0 заказов
         orderService.deleteAllOrders();
-        Assertions.assertThrows(EntityNotFoundException.class, () -> orderService.findOrder(-1L));
+        Assertions.assertThrows(OrderNotFoundException.class, () -> orderService.findOrder(-1L));
         // 2 покупателя
         final Customer customer2 = customerService.addCustomer("Иннокентий", "Иванов");
-        // 3 билета
+
-        final Ticket ticket3 = ticketService.addTicket("Чебурашка", 300.0, new Timestamp(System.currentTimeMillis()));
         // 1 заказ
         final Order order2 = orderService
-                .addOrder(customerService.findCustomer(customer2.getId()));
+                .addOrder(customerService.findCustomer(customer2.getId()).getId());
-        // у заказа 2 билета
+        // у заказа 2 сеанса
-        orderService.addTicket(order2.getId(), ticket1);
+        orderService.addSession(order2.getId(), session1.getId(), 2);
-        orderService.addTicket(order2.getId(), ticket2);
+        Assertions.assertEquals(sessionService.findSession(session1.getId()).getCapacity(), 8);
-        // у заказа 1 билет
+
-        orderService.deleteTicketInOrder(order2.getId(), ticket2);
+        orderService.addSession(order2.getId(), session2.getId(), 5);
+        Assertions.assertEquals(sessionService.findSession(session2.getId()).getCapacity(), 5);
+
+        Assertions.assertThrows(InvalidDataAccessApiUsageException.class, () ->
+                orderService.addSession(order2.getId(), session2.getId(), 6));
+
+        // у заказа 1 сеанс
+        orderService.deleteSessionInOrder(order2.getId(), session2.getId(), 10);
+        Assertions.assertEquals(sessionService.findSession(session2.getId()).getCapacity(), 10);
+        // заполнили всю 2 сессию
+        orderService.addSession(order2.getId(), session2.getId(), 10);
+
+        Assertions.assertEquals(sessionService.findAllSessions().size(), 2);
+        Assertions.assertEquals(sessionService.findAllSessionsWithCapacity().size(), 1);
+        Assertions.assertEquals(sessionService.findAllSessionsWithCapacity().get(0), session1);
+
+        orderService.deleteSessionInOrder(order2.getId(), session2.getId(), 4);
+        Assertions.assertEquals(sessionService.findAllSessionsWithCapacity().size(), 2);
+        Assertions.assertEquals(sessionService.findSession(session2.getId()).getCapacity(), 4);
+        orderService.deleteSessionInOrder(order2.getId(), session2.getId(), 6);
+        Assertions.assertEquals(sessionService.findAllSessionsWithCapacity().size(), 2);
+        Assertions.assertEquals(sessionService.findSession(session2.getId()).getCapacity(), 10);
+
+        Assertions.assertEquals(orderService.findOrder(order2.getId()).getSessions().size(), 1);
+        Assertions.assertEquals(orderService.findOrder(order2.getId()).getSessions().get(0).getId().getSessionId(), session1.getId());
+
+        // у заказа 1 сеанс
+        // 3 сеанса всего
+        final Session session3 = sessionService.addSession(300.0,
+                new Timestamp(System.currentTimeMillis()), cinema2.getId(), 10);
+        // осталось 2 сеанса, у заказа2 0 сеансов
+        sessionService.deleteSession(session1.getId());
+        Assertions.assertEquals(sessionService.findAllSessions().size(), 2);
 
         Assertions.assertEquals(orderService
-                .findOrder(order2.getId()).getTickets().size(), 1);
+                .findOrder(order2.getId()).getSessions().size(), 0);
         // 2-ой покупатель удален
-        // 0 заказов
+        // 0 заказов после его удаления
+        Assertions.assertEquals(orderService.findAllOrders().size(), 1);
         customerService.deleteCustomer(customer2.getId());
-        Assertions.assertThrows(EntityNotFoundException.class, () -> customerService.findCustomer(customer2.getId()));
+
-        Assertions.assertThrows(EntityNotFoundException.class, () -> orderService.findOrder(order2.getId()));
+        Assertions.assertThrows(CustomerNotFoundException.class, () -> customerService.findCustomer(customer2.getId()));
+        Assertions.assertThrows(OrderNotFoundException.class, () -> orderService.findOrder(order2.getId()));
         Assertions.assertEquals(orderService.findAllOrders().size(), 0);
+
+        Assertions.assertEquals(sessionService.findSession(session3.getId()), session3);
+        cinemaService.deleteCinema(cinema2.getId());
     }
-
-    @Test()
-    void testCustomer() {
-        customerService.deleteAllCustomers();
-        final Customer customer = customerService.addCustomer("Иван", "Иванов");
-        log.info(customer.toString() + "testCustomerCreate");
-        Assertions.assertNotNull(customer.getId());
-
-        customerService.deleteAllCustomers();
-        final Customer customer1 = customerService.addCustomer("Иван", "Иванов");
-        log.info(customer1.toString() + "testCustomerRead1");
-        final Customer findCustomer = customerService.findCustomer(customer1.getId());
-        log.info(findCustomer.toString() + "testCustomerRead2");
-        Assertions.assertEquals(customer1, findCustomer);
-
-        customerService.deleteAllCustomers();
-        Assertions.assertThrows(EntityNotFoundException.class, () -> customerService.findCustomer(-1L));
-        log.info("testCustomerReadNotFound");
-
-        customerService.deleteAllCustomers();
-        customerService.addCustomer("Иван", "Иванов");
-        customerService.addCustomer("Петр", "Петров");
-        final List<Customer> customers1 = customerService.findAllCustomers();
-        log.info(customers1.toString() + "testCustomerReadAll");
-        Assertions.assertEquals(customers1.size(), 2);
-
-        customerService.deleteAllCustomers();
-        final List<Customer> customers2 = customerService.findAllCustomers();
-        log.info(customers2.toString() + "testCustomerReadAllEmpty");
-        Assertions.assertEquals(customers2.size(), 0);
-    }
-
-    @Test
-    void testTicket() {
-        ticketService.deleteAllTickets();
-        final Ticket ticket1 = ticketService.addTicket("Ледниковый период", 100.0, new Timestamp(System.currentTimeMillis()));
-        log.info(ticket1.toString() + "testTicketCreate");
-        Assertions.assertNotNull(ticket1.getId());
-
-        ticketService.deleteAllTickets();
-        final Ticket ticket2 = ticketService.addTicket("Выживший", 100.0, new Timestamp(System.currentTimeMillis()));
-        log.info(ticket2.toString() + "testTicketRead1");
-        final Ticket findTicket = ticketService.findTicket(ticket2.getId());
-        log.info(findTicket.toString() + "testTicketRead2");
-        Assertions.assertEquals(ticket2, findTicket);
-
-        ticketService.deleteAllTickets();
-        Assertions.assertThrows(EntityNotFoundException.class, () -> ticketService.findTicket(-1L));
-        log.info("testTicketReadNotFound");
-
-        ticketService.deleteAllTickets();
-        ticketService.addTicket("1+1", 100.0, new Timestamp(System.currentTimeMillis()));
-        ticketService.addTicket("Титаник", 100.0, new Timestamp(System.currentTimeMillis()));
-        final List<Ticket> tickets1 = ticketService.findAllTickets();
-        log.info(tickets1.toString() + "testTicketReadAll");
-        Assertions.assertEquals(tickets1.size(), 2);
-
-        ticketService.deleteAllTickets();
-        final List<Ticket> tickets2 = ticketService.findAllTickets();
-        log.info(tickets2.toString() + "testTicketReadAllEmpty");
-        Assertions.assertEquals(tickets2.size(), 0);
-
-
-    }*/
 }