♻️ refactor : PR 리뷰 반영 + chat으로 정답 맞혔을 시, Question_start 누락 해결

Author: silver-eunjoo

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

@@ -5,6 +5,7 @@
 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.toQuestionResultResponse;
+import static io.f1.backend.domain.game.mapper.RoomMapper.toQuestionStartResponse;
 import static io.f1.backend.domain.game.mapper.RoomMapper.toRankUpdateResponse;
 import static io.f1.backend.domain.game.mapper.RoomMapper.toRoomResponse;
 import static io.f1.backend.domain.game.mapper.RoomMapper.toRoomSetting;
@@ -65,7 +66,6 @@ public class RoomService {
 
     private final MessageSender messageSender;
 
-    private static final int START_DELAY = 5;
     private static final int CONTINUE_DELAY = 3;
 
     private static final String PENDING_SESSION_ID = "PENDING_SESSION_ID";
@@ -256,20 +256,22 @@ public void chat(Long roomId, String sessionId, ChatMessage chatMessage) {
                     destination,
                     MessageType.SYSTEM_NOTICE,
                     ofPlayerEvent(chatMessage.nickname(), RoomEventType.CORRECT_ANSWER));
-        }
 
-        timerService.cancelTimer(room);
+            timerService.cancelTimer(room);
 
-        // TODO : 게임 종료 로직 추가
-        if (!timerService.validateCurrentRound(room)) {
-            // 게임 종료 로직
-            return;
-        }
+            // TODO : 게임 종료 로직 추가
+            if (!timerService.validateCurrentRound(room)) {
+                // 게임 종료 로직
+                return;
+            }
 
-        room.increaseCurrentRound();
+            room.increaseCurrentRound();
 
-        // 타이머 추가하기
-        timerService.startTimer(room, CONTINUE_DELAY);
+            // 타이머 추가하기
+            timerService.startTimer(room, CONTINUE_DELAY);
+            messageSender.send(destination, MessageType.QUESTION_START,
+                toQuestionStartResponse(room, CONTINUE_DELAY));
+        }
     }
 
     private Player getRemovePlayer(Room room, String sessionId, UserPrincipal principal) {