[#172] feat(PromotionService): 지나간 공연에 해당하는 promotion 캐러셀 삭제하는 로직 구현

src/main/java/com/beat/domain/promotion/application/PromotionService.java

@@ -0,0 +1,43 @@
+package com.beat.domain.promotion.application;
+
+import com.beat.domain.performance.domain.Performance;
+import com.beat.domain.promotion.dao.PromotionRepository;
+import com.beat.domain.promotion.domain.Promotion;
+import com.beat.domain.schedule.application.ScheduleService;
+import com.beat.domain.schedule.dao.ScheduleRepository;
+import com.beat.domain.schedule.domain.Schedule;
+import lombok.RequiredArgsConstructor;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+@Service
+@RequiredArgsConstructor
+public class PromotionService {
+
+    private final PromotionRepository promotionRepository;
+    private final ScheduleRepository scheduleRepository;
+    private final ScheduleService scheduleService;
+
+    @Scheduled(cron = "1 0 0 * * ?")
+    @Transactional
+    public void checkAndDeleteInvalidPromotions() {
+        List<Promotion> promotions = promotionRepository.findAll();
+
+        for (Promotion promotion : promotions) {
+            if (promotion.getPerformance() != null) {
+                Performance performance = promotion.getPerformance();
+
+                List<Schedule> schedules = scheduleRepository.findByPerformanceId(performance.getId());
+                int minDueDate = scheduleService.getMinDueDate(schedules);
+
+                // MinDueDate가 음수일 경우 Promotion 삭제
+                if (minDueDate < 0) {
+                    promotionRepository.delete(promotion);
+                }
+            }
+        }
+    }
+}