добавил заказы

src/main/java/com/example/demo/DemoApplication.java

@@ -13,6 +13,8 @@ import com.example.demo.games.model.GameEntity;
 import com.example.demo.games.service.GameService;
 import com.example.demo.genres.model.GenreEntity;
 import com.example.demo.genres.service.GenreService;
+import com.example.demo.order.model.OrderEntity;
+import com.example.demo.order.service.OrderService;
 import com.example.demo.types.model.TypeEntity;
 import com.example.demo.types.service.TypeService;
 
@@ -24,11 +26,13 @@ public class DemoApplication implements CommandLineRunner {
 	private final TypeService typeService;
 	private final GenreService genreService;
 	private final GameService gameService;
+	private final OrderService orderService;
 
-	public DemoApplication(TypeService typeService, GenreService genreService, GameService gameService){
+	public DemoApplication(TypeService typeService, GenreService genreService, GameService gameService, OrderService orderService){
 		this.typeService = typeService;
 		this.gameService = gameService;
 		this.genreService = genreService;
+		this.orderService = orderService;
 	}
 
 	@Override
@@ -46,8 +50,13 @@ public class DemoApplication implements CommandLineRunner {
 			final List<GenreEntity> genres2 =  new ArrayList<GenreEntity>();
 			genres2.add(genre2);
 
-			gameService.create(new GameEntity(null,type1,"Game1",2100.0,"good game", genres1));
-			gameService.create(new GameEntity(null, type2, "Game2", 1200.0,"bad game", genres2));
+			final var game1 = gameService.create(new GameEntity(null,type1,"Game1",2100.0,"good game", genres1));
+			final var game2 = gameService.create(new GameEntity(null, type2, "Game2", 1200.0,"bad game", genres2));
+			final List<GameEntity> games = new ArrayList<GameEntity>();
+			games.add(game1);
+			games.add(game2);
+
+			orderService.create(new OrderEntity(null,games));
 	}
 
 	public static void main(String[] args) {

src/main/java/com/example/demo/order/api/OrderController.java

@@ -0,0 +1,82 @@
+package com.example.demo.order.api;
+
+import org.modelmapper.ModelMapper;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+import com.example.demo.core.configuration.Constants;
+import com.example.demo.games.model.GameEntity;
+import com.example.demo.games.service.GameService;
+import com.example.demo.order.model.OrderEntity;
+import com.example.demo.order.service.OrderService;
+
+import jakarta.validation.Valid;
+
+@RestController
+@RequestMapping(Constants.API_URL + "/order")
+public class OrderController {
+    private final GameService gameService;
+    private final ModelMapper modelMapper;
+    private final OrderService orderService;
+
+    public OrderController(GameService gameService, ModelMapper modelMapper, OrderService orderService){
+        this.gameService = gameService;
+        this.modelMapper = modelMapper;
+        this.orderService = orderService;
+    }
+
+    private OrderDto toDto(OrderEntity entity){
+        var dto = new OrderDto();
+        dto.setId(entity.getId());
+        double sum = 0;
+        for(var game : entity.getGames()){
+            sum += game.getPrice();
+        }
+        dto.setSum(sum);
+        dto.setGames(entity.getGames().stream().map(GameEntity::getId).toList());
+        return dto;
+    }
+
+    private OrderEntity toEntity(OrderDto dto){
+        final OrderEntity entity = modelMapper.map(dto, OrderEntity.class);
+        var games = dto.getGames();
+        for(var game : games){
+            entity.setGames(gameService.get(game));
+        }
+        return entity;
+    }
+
+    @GetMapping
+    public List<OrderDto> getAll(@RequestParam(name = "games", defaultValue = "") List<Long> games){
+        return orderService.getAll(games).stream().map(this::toDto).toList();
+    }
+
+    @GetMapping("/{id}")
+    public OrderDto get(@PathVariable(name = "id")Long id){
+        return toDto(orderService.get(id));
+    }
+
+    @PostMapping
+    public OrderDto create(@RequestBody @Valid OrderDto dto){
+        return toDto(orderService.create(toEntity(dto)));
+    }
+
+    @PutMapping("/{id}")
+    public OrderDto update(@PathVariable(name = "id") Long id, @RequestBody OrderDto dto){
+        return toDto(orderService.update(id, toEntity(dto)));
+    }
+
+    @DeleteMapping("/{id}")
+    public OrderDto delete(@PathVariable(name = "id") Long id){
+        return toDto(orderService.delete(id));
+    }
+}

src/main/java/com/example/demo/order/api/OrderDto.java

@@ -0,0 +1,42 @@
+package com.example.demo.order.api;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotNull;
+
+public class OrderDto {
+    private Long id;
+    @NotNull
+    @Min(1)
+    private double sum;
+    @NotNull
+    private final List<Long> games = new ArrayList<>();
+
+    @JsonProperty(access = JsonProperty.Access.READ_ONLY)
+    public Long getId(){
+        return id;
+    }
+    public void setId(Long id){
+        this.id = id;
+    }
+
+    @JsonProperty(access = JsonProperty.Access.READ_ONLY)
+    public double getSum(){
+        return sum;
+    }
+    public void setSum(double sum){
+        this.sum = sum;
+    }
+
+    public List<Long> getGames(){
+        return games;
+    }
+    public void setGames(List<Long> games){
+        this.games.clear();
+        this.games.addAll(games);
+    }
+}

src/main/java/com/example/demo/order/model/OrderEntity.java

@@ -0,0 +1,58 @@
+package com.example.demo.order.model;
+
+import java.util.List;
+
+import java.util.Objects;
+
+import java.util.ArrayList;
+
+import com.example.demo.core.model.BaseEntity;
+import com.example.demo.games.model.GameEntity;
+
+public class OrderEntity extends BaseEntity{
+    private double sum;
+    private final List<GameEntity> games = new ArrayList<>();
+
+    public OrderEntity(){
+        super();
+    }
+
+    public OrderEntity(Long id, List<GameEntity> games){
+        super(id);
+        this.games.clear();
+        this.games.addAll(games);
+    }
+
+    public double getSum(){
+
+        for(var game : games){
+            sum += game.getPrice();
+        }
+
+        return sum;
+    }
+
+    public List<GameEntity> getGames(){
+        return games;
+    }
+
+    public void setGames(GameEntity game){
+        this.games.add(game);
+    }
+
+    @Override
+    public int hashCode(){
+        return Objects.hash(id, sum, games);
+    }
+
+    @Override
+    public boolean equals(Object obj){
+        if(this == obj) return true;
+        if(obj == null || getClass() != obj.getClass()) return false;
+
+        final OrderEntity other = (OrderEntity) obj;
+        return Objects.equals(other.getId(), id)
+            && Objects.equals(other.getSum(), sum)
+            && Objects.equals(other.getGames(), games);
+    }
+}

src/main/java/com/example/demo/order/repository/OrderRepository.java

@@ -0,0 +1,11 @@
+package com.example.demo.order.repository;
+import org.springframework.stereotype.Repository;
+
+import com.example.demo.core.repository.MapRepository;
+import com.example.demo.order.model.OrderEntity;
+
+@Repository
+
+public class OrderRepository extends MapRepository<OrderEntity>{
+
+}

src/main/java/com/example/demo/order/service/OrderService.java

@@ -0,0 +1,57 @@
+package com.example.demo.order.service;
+
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Objects;
+import java.util.Optional;
+
+import com.example.demo.core.error.NotFoundException;
+import com.example.demo.games.service.GameService;
+import com.example.demo.order.repository.OrderRepository;
+import com.example.demo.order.model.OrderEntity;
+
+@Service
+public class OrderService {
+    private final OrderRepository repository;
+    private final GameService gameService;
+
+    public OrderService(OrderRepository repository, GameService gameService){
+        this.repository = repository;
+        this.gameService = gameService;
+    }
+
+    public List<OrderEntity> getAll(List<Long> games){
+        var gamesEnt = new ArrayList<>();
+        for(var gameId : games){
+            gamesEnt.add(gameService.get(gameId));
+        }
+        if(!Objects.equals(gamesEnt.size(), 0)){
+            return repository.getAll().stream().filter(game -> game.getGames().containsAll(gamesEnt)).toList();
+        }
+        return repository.getAll();
+    }
+
+    public OrderEntity get(Long id){
+        return Optional.ofNullable(repository.get(id)).orElseThrow(() -> new NotFoundException(id));
+    }
+
+    public OrderEntity create(OrderEntity entity){
+        return repository.create(entity);
+    }
+
+    public OrderEntity update(Long id, OrderEntity entity){
+        final OrderEntity existEntity = get(id);
+        var games = entity.getGames();
+        for(var game : games){
+            existEntity.setGames(game);
+        }
+        return repository.update(existEntity);
+    }
+
+    public OrderEntity delete(Long id){
+        final OrderEntity exisEntity = get(id);
+        return repository.delete(exisEntity);
+    }
+}