✨ feat: 게임 방 생성 구현

* ✨ feat: 게임 방 생성 구현

* ✨ feat: repository, service 책임 분리, mapper추가

* chore: Java 스타일 수정

* ♻️ 리뷰 반영 수정

* chore: Java 스타일 수정

* 🩹 컨트롤러 import 추가

* chore: Java 스타일 수정

---------

Co-authored-by: github-actions <>

Author: sehee123

backend/src/main/java/io/f1/backend/domain/game/Player.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/Room.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/RoomManager.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/RoomSetting.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/api/RoomController.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/app/RoomService.java

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