♻️ refactor: saveRoom, 퀴즈 정보 조회 메서드 수정

Author: LimKangHyun

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

@@ -26,6 +26,7 @@
 import io.f1.backend.domain.game.dto.response.RoomResponse;
 import io.f1.backend.domain.game.dto.response.RoomSettingResponse;
 import io.f1.backend.domain.game.dto.response.SystemNoticeResponse;
+import io.f1.backend.domain.game.event.RoomCreatedEvent;
 import io.f1.backend.domain.game.model.GameSetting;
 import io.f1.backend.domain.game.model.Player;
 import io.f1.backend.domain.game.model.Room;
@@ -67,7 +68,8 @@ public class RoomService {
     public RoomCreateResponse saveRoom(RoomCreateRequest request) {
 
         QuizMinData quizMinData = quizService.getQuizMinData();
-        // Quiz quiz = quizService.getQuizWithQuestionsById(quizMinId);
+
+        Quiz quiz = quizService.findQuizById(quizMinData.quizMinId());
 
         GameSetting gameSetting = toGameSetting(quizMinData);
 
@@ -83,7 +85,7 @@ public RoomCreateResponse saveRoom(RoomCreateRequest request) {
 
         roomRepository.saveRoom(room);
 
-        // eventPublisher.publishEvent(new RoomCreatedEvent(room, quiz));
+         eventPublisher.publishEvent(new RoomCreatedEvent(room, quiz));
 
         return new RoomCreateResponse(newId);
     }

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

@@ -261,4 +261,10 @@ public List<Question> getRandomQuestionsWithoutAnswer(Long quizId, Integer round
 
         return randomQuestions;
     }
+
+    @Transactional(readOnly = true)
+    public Quiz findQuizById(Long quizId) {
+        return quizRepository.findById(quizId)
+            .orElseThrow(() -> new CustomException(QuizErrorCode.QUIZ_NOT_FOUND));
+    }
 }