[feat] 게임방 생성 api 구현

backend/src/main/java/io/f1/backend/domain/game/api/RoomController.java

@@ -0,0 +1,38 @@
+package io.f1.backend.domain.game.api;
+
+import io.f1.backend.domain.game.app.RoomService;
+import io.f1.backend.domain.game.dto.request.RoomCreateRequest;
+import io.f1.backend.domain.game.dto.response.RoomCreateResponse;
+
+import jakarta.validation.Valid;
+
+import lombok.RequiredArgsConstructor;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/rooms")
+@RequiredArgsConstructor
+public class RoomController {
+
+    private final RoomService roomService;
+
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    public RoomCreateResponse saveRoom(@RequestBody @Valid RoomCreateRequest request) {
+
+        Map<String, Object> loginUser = new HashMap<>();
+        loginUser.put("id", 1L);
+        loginUser.put("nickname", "빵야빵야");
+
+        return roomService.saveRoom(request, loginUser);
+    }
+}

backend/src/main/java/io/f1/backend/domain/game/app/RoomService.java

@@ -0,0 +1,41 @@
+package io.f1.backend.domain.game.app;
+
+import static io.f1.backend.domain.game.mapper.RoomMapper.toRoomSetting;
+
+import io.f1.backend.domain.game.dto.request.RoomCreateRequest;
+import io.f1.backend.domain.game.dto.response.RoomCreateResponse;
+import io.f1.backend.domain.game.model.GameSetting;
+import io.f1.backend.domain.game.model.Player;
+import io.f1.backend.domain.game.model.Room;
+import io.f1.backend.domain.game.model.RoomSetting;
+import io.f1.backend.domain.game.store.RoomRepository;
+
+import lombok.RequiredArgsConstructor;
+
+import org.springframework.stereotype.Service;
+
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicLong;
+
+@Service
+@RequiredArgsConstructor
+public class RoomService {
+
+    private final RoomRepository roomRepository;
+    private final AtomicLong roomIdGenerator = new AtomicLong(0);
+
+    public RoomCreateResponse saveRoom(RoomCreateRequest request, Map<String, Object> loginUser) {
+
+        // todo 제일 작은 index quizId 가져와서 gameSetting(round 설정)
+        GameSetting gameSetting = new GameSetting(1L, 10, 60);
+        // todo security에서 가져오는걸로 변경
+        Player host = new Player((Long) loginUser.get("id"), loginUser.get("nickname").toString());
+        RoomSetting roomSetting = toRoomSetting(request);
+
+        Long newId = roomIdGenerator.incrementAndGet();
+
+        roomRepository.saveRoom(new Room(newId, roomSetting, gameSetting, host));
+
+        return new RoomCreateResponse(newId);
+    }
+}

backend/src/main/java/io/f1/backend/domain/game/dto/request/RoomCreateRequest.java

@@ -0,0 +1,15 @@
+package io.f1.backend.domain.game.dto.request;
+
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+
+public record RoomCreateRequest(
+        @NotBlank(message = "방 제목은 필수입니다.") String roomName,
+        @NotNull(message = "인원 수 입력은 필수입니다.")
+                @Min(value = 2, message = "방 인원 수는 최소 2명입니다.")
+                @Max(value = 8, message = "방 인원 수는 최대 8명 입니다.")
+                Integer maxUserCount,
+        @NotNull String password,
+        @NotNull boolean locked) {}

backend/src/main/java/io/f1/backend/domain/game/dto/response/RoomCreateResponse.java

@@ -0,0 +1,3 @@
+package io.f1.backend.domain.game.dto.response;
+
+public record RoomCreateResponse(Long roomId) {}

backend/src/main/java/io/f1/backend/domain/game/mapper/RoomMapper.java

@@ -0,0 +1,12 @@
+package io.f1.backend.domain.game.mapper;
+
+import io.f1.backend.domain.game.dto.request.RoomCreateRequest;
+import io.f1.backend.domain.game.model.RoomSetting;
+
+public class RoomMapper {
+
+    public static RoomSetting toRoomSetting(RoomCreateRequest request) {
+        return new RoomSetting(
+                request.roomName(), request.maxUserCount(), request.locked(), request.password());
+    }
+}

backend/src/main/java/io/f1/backend/domain/game/ConnectionState.java → backend/src/main/java/io/f1/backend/domain/game/model/ConnectionState.java

@@ -1,4 +1,4 @@
-package io.f1.backend.domain.game;
+package io.f1.backend.domain.game.model;
 
 public enum ConnectionState {
     DISCONNECTED,

backend/src/main/java/io/f1/backend/domain/game/GameSetting.java → backend/src/main/java/io/f1/backend/domain/game/model/GameSetting.java

@@ -1,5 +1,10 @@
-package io.f1.backend.domain.game;
+package io.f1.backend.domain.game.model;
 
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
 public class GameSetting {
 
     private Long quizId;

backend/src/main/java/io/f1/backend/domain/game/model/Player.java

@@ -0,0 +1,22 @@
+package io.f1.backend.domain.game.model;
+
+import lombok.Getter;
+
+@Getter
+public class Player {
+
+    public final Long id;
+
+    public final String nickname;
+
+    private boolean isReady = false;
+
+    private ConnectionState state = ConnectionState.CONNECTED;
+
+    private int correctCount = 0;
+
+    public Player(Long id, String nickname) {
+        this.id = id;
+        this.nickname = nickname;
+    }
+}

backend/src/main/java/io/f1/backend/domain/game/model/Room.java

@@ -0,0 +1,38 @@
+package io.f1.backend.domain.game.model;
+
+import io.f1.backend.domain.question.entity.Question;
+
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+@Getter
+public class Room {
+
+    private final Long id;
+
+    private final RoomSetting roomSetting;
+
+    private GameSetting gameSetting;
+
+    private RoomState state = RoomState.WAITING;
+
+    private Player host;
+
+    private List<Question> questions = new ArrayList<>();
+
+    private Map<String, Player> playerSessionMap = new ConcurrentHashMap<>();
+
+    private final LocalDateTime createdAt = LocalDateTime.now();
+
+    public Room(Long id, RoomSetting roomSetting, GameSetting gameSetting, Player host) {
+        this.id = id;
+        this.roomSetting = roomSetting;
+        this.gameSetting = gameSetting;
+        this.host = host;
+    }
+}

backend/src/main/java/io/f1/backend/domain/game/model/RoomSetting.java

@@ -0,0 +1,3 @@
+package io.f1.backend.domain.game.model;
+
+public record RoomSetting(String roomName, int maxUserCount, boolean locked, String password) {}

backend/src/main/java/io/f1/backend/domain/game/RoomState.java → backend/src/main/java/io/f1/backend/domain/game/model/RoomState.java

@@ -1,4 +1,4 @@
-package io.f1.backend.domain.game;
+package io.f1.backend.domain.game.model;
 
 public enum RoomState {
     WAITING,

backend/src/main/java/io/f1/backend/domain/game/store/RoomRepository.java

@@ -0,0 +1,7 @@
+package io.f1.backend.domain.game.store;
+
+import io.f1.backend.domain.game.model.Room;
+
+public interface RoomRepository {
+    void saveRoom(Room room);
+}

backend/src/main/java/io/f1/backend/domain/game/store/RoomRepositoryImpl.java

@@ -0,0 +1,24 @@
+package io.f1.backend.domain.game.store;
+
+import io.f1.backend.domain.game.model.Room;
+
+import org.springframework.stereotype.Repository;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+@Repository
+public class RoomRepositoryImpl implements RoomRepository {
+
+    private final Map<Long, Room> roomMap = new ConcurrentHashMap<>();
+
+    @Override
+    public void saveRoom(Room room) {
+        roomMap.put(room.getId(), room);
+    }
+
+    // 테스트 전용 메소드
+    public Room getRoomForTest(Long roomId) {
+        return roomMap.get(roomId);
+    }
+}

backend/src/test/java/io/f1/backend/domain/game/store/RoomRepositoryTests.java

@@ -0,0 +1,64 @@
+package io.f1.backend.domain.game.store;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import io.f1.backend.domain.game.dto.request.RoomCreateRequest;
+import io.f1.backend.domain.game.model.GameSetting;
+import io.f1.backend.domain.game.model.Player;
+import io.f1.backend.domain.game.model.Room;
+import io.f1.backend.domain.game.model.RoomSetting;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+
+class RoomRepositoryTests {
+
+    RoomRepositoryImpl roomRepository;
+
+    @BeforeEach
+    void setUp() {
+        roomRepository = new RoomRepositoryImpl();
+    }
+
+    @Test
+    @DisplayName("게임 방 생성 테스트")
+    void saveRoom_test() {
+
+        RoomCreateRequest request = new RoomCreateRequest("방제", 3, "password1", true);
+        Map<String, Object> loginUser = new HashMap<>();
+
+        loginUser.put("id", 1L);
+        loginUser.put("nickname", "빵야빵야");
+
+        GameSetting gameSetting = new GameSetting(1L, 10, 60);
+
+        Player host = new Player((Long) loginUser.get("id"), loginUser.get("nickname").toString());
+
+        RoomSetting roomSetting =
+                new RoomSetting(
+                        request.roomName(),
+                        request.maxUserCount(),
+                        request.locked(),
+                        request.password());
+
+        Long newId = 1L;
+
+        Room newRoom = new Room(newId, roomSetting, gameSetting, host);
+
+        roomRepository.saveRoom(newRoom);
+
+        Room savedRoom = roomRepository.getRoomForTest(newId);
+
+        assertThat(savedRoom.getHost().getId()).isEqualTo(loginUser.get("id"));
+        assertThat(savedRoom.getHost().getNickname()).isEqualTo(loginUser.get("nickname"));
+
+        assertThat(savedRoom.getRoomSetting().roomName()).isEqualTo(request.roomName());
+        assertThat(savedRoom.getRoomSetting().maxUserCount()).isEqualTo(request.maxUserCount());
+        assertThat(savedRoom.getRoomSetting().locked()).isEqualTo(request.locked());
+        assertThat(savedRoom.getRoomSetting().password()).isEqualTo(request.password());
+    }
+}