From d15a484dbfe41cc4f4b6ed120e09b7b2301a1333 Mon Sep 17 00:00:00 2001
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 =?UTF-8?q?=E1=84=80=E1=85=AE?= <mcutegs2@me.com>
Date: Wed, 8 Jul 2026 05:12:19 +0900
Subject: [PATCH] =?UTF-8?q?=EB=B9=84=EB=8F=99=EA=B8=B0=20=ED=98=95?=
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---
 ai-server/backend/routers/game_router.py   |  6 +++---
 ai-server/backend/services/game_service.py | 12 ++++++++----
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/ai-server/backend/routers/game_router.py b/ai-server/backend/routers/game_router.py
index 0c96044..c0a203e 100644
--- a/ai-server/backend/routers/game_router.py
+++ b/ai-server/backend/routers/game_router.py
@@ -15,12 +15,12 @@ from backend.services import game_service
 router = APIRouter(prefix="/api/game", tags=["Game"])
 
 @router.post("/death", response_model=AncestorDeathResponse)
-def record_death(req: AncestorDeathCreate, db: Session = Depends(get_db)):
+def record_death(req: AncestorDeathCreate, background_tasks: BackgroundTasks, db: Session = Depends(get_db)):
     death_history = game_service.create_death_history(db=db, death_data=req)
     
-    # 다음 세대 대사 즉시 생성 및 캐싱 보장 (동기식 호출)
+    # 다음 세대 대사 백그라운드 사전 생성 (비동기 백그라운드 태스크 구동)
     next_gen = death_history.generation + 1
-    game_service.pregenerate_npc_dialogue(db=db, next_generation=next_gen)
+    background_tasks.add_task(game_service.pregenerate_npc_dialogue, next_gen)
     
     return death_history
 
diff --git a/ai-server/backend/services/game_service.py b/ai-server/backend/services/game_service.py
index d463452..10f1e81 100644
--- a/ai-server/backend/services/game_service.py
+++ b/ai-server/backend/services/game_service.py
@@ -36,10 +36,12 @@ def create_death_history(db: Session, death_data: AncestorDeathCreate):
     db.refresh(db_death)
     return db_death
 
-# 3. 문지기 NPC 조언 대사 사전 생성 (동기식 생성 및 캐싱 보장)
-def pregenerate_npc_dialogue(db: Session, next_generation: int):
+# 3. 문지기 NPC 조언 대사 사전 생성 (비동기 백그라운드 구동)
+def pregenerate_npc_dialogue(next_generation: int):
+    # 비동기로 돌기 때문에 직접 세션을 생성해서 처리합니다.
+    db = SessionLocal()
     try:
-        print(f"[Pregen] {next_generation}대손용 문지기 대사 동기 생성 시작...")
+        print(f"[Pregen] {next_generation}대손용 문지기 대사 백그라운드 생성 시작...")
         
         # 1. AI 조언 대사 생성
         dialogue_text = generate_npc_dialogue(db=db, current_generation=next_generation)
@@ -60,7 +62,9 @@ def pregenerate_npc_dialogue(db: Session, next_generation: int):
         print(f"[Pregen] {next_generation}대손용 대사 캐싱 완료: {dialogue_text}")
     except Exception as e:
         db.rollback()
-        print(f"[Pregen ERROR] 대사 생성 실패: {e}")
+        print(f"[Pregen ERROR] 대사 백그라운드 생성 실패: {e}")
+    finally:
+        db.close()
 
 # 2. 문지기 NPC 조언 대사 생성
 def generate_npc_dialogue(db: Session, current_generation: int) -> str: