✨ quiz api 적용

Author: sehee123

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

@@ -1,5 +1,6 @@
 package io.f1.backend.domain.game.app;
 
+import static io.f1.backend.domain.game.mapper.RoomMapper.toGameSetting;
 import static io.f1.backend.domain.game.mapper.RoomMapper.toGameSettingResponse;
 import static io.f1.backend.domain.game.mapper.RoomMapper.toPlayerListResponse;
 import static io.f1.backend.domain.game.mapper.RoomMapper.toRoomResponse;
@@ -49,10 +50,13 @@ public class RoomService {
 
     public RoomCreateResponse saveRoom(RoomCreateRequest request) {
 
-        // todo 제일 작은 index quizId 가져와서 gameSetting(round 설정)
-        GameSetting gameSetting = new GameSetting(1L, 10, 60);
+        Long minQuizId = quizService.getQuizMinId();
+        Quiz quiz = quizService.getQuizById(minQuizId);
+
+        GameSetting gameSetting = toGameSetting(quiz);
 
         Player host = createPlayer();
+
         RoomSetting roomSetting = toRoomSetting(request);
 
         Long newId = roomIdGenerator.incrementAndGet();
@@ -61,9 +65,6 @@ public RoomCreateResponse saveRoom(RoomCreateRequest request) {
 
         roomRepository.saveRoom(room);
 
-        Long quizId = room.getGameSetting().getQuizId();
-        Quiz quiz = quizService.getQuizById(quizId);
-
         eventPublisher.publishEvent(new RoomCreatedEvent(room, quiz));
 
         return new RoomCreateResponse(newId);
@@ -108,9 +109,9 @@ public RoomInitialData enterRoom(Long roomId, String sessionId) {
 
         RoomSettingResponse roomSettingResponse = toRoomSettingResponse(room);
 
-        // todo quiz 생성 api 완성 후 수정
-        QuizResponse quiz =
-            new QuizResponse(room.getGameSetting().getQuizId(), "title", "설명", "url", 10);
+        Long quizId = room.getGameSetting().getQuizId();
+        Quiz quiz = quizService.getQuizById(quizId);
+
         GameSettingResponse gameSettingResponse =
             toGameSettingResponse(room.getGameSetting(), quiz);
 

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

@@ -16,11 +16,17 @@
 
 public class RoomMapper {
 
+    private static final int DEFAULT_TIME_LIMIT = 60;
+
     public static RoomSetting toRoomSetting(RoomCreateRequest request) {
         return new RoomSetting(
                 request.roomName(), request.maxUserCount(), request.locked(), request.password());
     }
 
+    public static GameSetting toGameSetting(Quiz quiz) {
+        return new GameSetting(quiz.getId(), quiz.getQuestions().size(), DEFAULT_TIME_LIMIT);
+    }
+
     public static RoomSettingResponse toRoomSettingResponse(Room room) {
         return new RoomSettingResponse(
                 room.getRoomSetting().roomName(),
@@ -29,8 +35,8 @@ public static RoomSettingResponse toRoomSettingResponse(Room room) {
     }
 
     public static GameSettingResponse toGameSettingResponse(
-            GameSetting gameSetting, QuizResponse quiz) {
-        return new GameSettingResponse(gameSetting.getRound(), gameSetting.getTimeLimit(), quiz);
+            GameSetting gameSetting, Quiz quiz) {
+        return new GameSettingResponse(gameSetting.getRound(), gameSetting.getTimeLimit(), toQuizResponse(quiz));
     }
 
     public static PlayerListResponse toPlayerListResponse(Room room) {
@@ -56,4 +62,8 @@ public static RoomResponse toRoomResponse(Room room, Quiz quiz) {
                 quiz.getQuestions().size(),
                 quiz.getThumbnailUrl());
     }
+
+    public static QuizResponse toQuizResponse(Quiz quiz) {
+        return new QuizResponse(quiz.getId(), quiz.getTitle(), quiz.getDescription(), quiz.getThumbnailUrl(), quiz.getQuestions().size());
+    }
 }

backend/src/main/java/io/f1/backend/domain/quiz/app/QuizService.java

@@ -11,19 +11,16 @@
 import io.f1.backend.domain.quiz.entity.Quiz;
 import io.f1.backend.domain.user.dao.UserRepository;
 import io.f1.backend.domain.user.entity.User;
-
-import lombok.RequiredArgsConstructor;
-
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-import org.springframework.web.multipart.MultipartFile;
-
 import java.io.IOException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.List;
 import java.util.UUID;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.multipart.MultipartFile;
 
 @Service
 @RequiredArgsConstructor
@@ -42,7 +39,7 @@ public class QuizService {
 
     @Transactional
     public QuizCreateResponse saveQuiz(MultipartFile thumbnailFile, QuizCreateRequest request)
-            throws IOException {
+        throws IOException {
         String thumbnailPath = defaultThumbnailPath;
 
         if (thumbnailFile != null && !thumbnailFile.isEmpty()) {
@@ -94,7 +91,11 @@ private String getExtension(String filename) {
 
     public Quiz getQuizById(Long quizId) {
         return quizRepository
-                .findById(quizId)
-                .orElseThrow(() -> new RuntimeException("E404002: 존재하지 않는 퀴즈입니다."));
+            .findById(quizId)
+            .orElseThrow(() -> new RuntimeException("E404002: 존재하지 않는 퀴즈입니다."));
+    }
+
+    public Long getQuizMinId() {
+        return quizRepository.getQuizMinId();
     }
-}
+}

backend/src/main/java/io/f1/backend/domain/quiz/dao/QuizRepository.java

@@ -1,7 +1,11 @@
 package io.f1.backend.domain.quiz.dao;
 
 import io.f1.backend.domain.quiz.entity.Quiz;
-
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+
+public interface QuizRepository extends JpaRepository<Quiz, Long> {
 
-public interface QuizRepository extends JpaRepository<Quiz, Long> {}
+    @Query("SELECT MIN(q.id) FROM Quiz q")
+    Long getQuizMinId();
+}