added query to find games by user

MyPassionProject/src/main/java/com/example/demo/Controller/GameController.java

 
 import com.example.demo.Entity.Game;
 import com.example.demo.Service.GameService;
+import com.example.demo.Service.UserService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
     @PostMapping(value="/games")
     public ResponseEntity<Game> addGame(@RequestBody Game game) {
         return gameService.addGame(game);
-
     }
 
     @GetMapping(value="/games")
 
     @GetMapping(value="/games/name/{gameName}")
     public Long getGameByName(@PathVariable String gameName){return gameService.getGameByName(gameName);}
+
+    @GetMapping(value="/games/{userId}")
+    public Collection<Game> getGamesByUserId(@PathVariable Long userId){
+        return gameService.getGamesByUserId(userId);
+    }
 }

MyPassionProject/src/main/java/com/example/demo/Entity/User.java

     @Column(unique = true)
     private String userName;
 
-    @ManyToMany(fetch = FetchType.LAZY,
+    @ManyToMany(
             cascade = {
                     CascadeType.PERSIST,
                     CascadeType.MERGE

MyPassionProject/src/main/java/com/example/demo/Repository/GameRepo.java

 import org.springframework.data.rest.core.annotation.RepositoryRestResource;
 import org.springframework.http.ResponseEntity;
 
+import java.util.Collection;
+import java.util.Set;
+
 @RepositoryRestResource
 public interface GameRepo extends JpaRepository<Game,Long> {
 
     @Query("select id from Game where name = :name")
     Long findByName(@Param("name")String name);
+
+    @Query("select g.id from User u INNER JOIN u.gameLibrary g where u.id in :userId")
+    Collection<Long> findUserGames(@Param("userId")Long userId);
 }

MyPassionProject/src/main/java/com/example/demo/Repository/UserRepo.java

 
 @RepositoryRestResource
 public interface UserRepo extends JpaRepository<User, Long> {
-//    @Query("select id from user_game where user_id = :userId")
-//    Set<Long> findUserGames(@Param("userId")Long userId);
-
 }

MyPassionProject/src/main/java/com/example/demo/Service/GameService.java

 import org.springframework.web.bind.annotation.CrossOrigin;
 
 import javax.validation.ConstraintViolationException;
-import java.util.Collection;
+import java.util.*;
 
 @Service
 public class GameService {
     private GameRepo gameRepo;
 
     @Autowired
-
     public GameService(GameRepo gameRepo) {
         this.gameRepo = gameRepo;
     }
     public Collection<Game> getAllGames() {
         return (gameRepo.findAll());
     }
+
+    public Set<Game> getGamesByUserId(Long userId) {
+        Collection<Long> gameIds = gameRepo.findUserGames(userId);
+        Set<Game> games = new HashSet<>();
+        for (Long id : gameIds) {
+            games.add(getGameById(id).getBody());
+        }
+        return games;
+    }
 }
+

MyPassionProject/src/main/java/com/example/demo/Service/UserService.java

     user.addGames(game);
     return new ResponseEntity<>(userRepo.save(user), HttpStatus.OK);
   }
+
 }