feat: 콜드 스타트 스케줄러 구현

Author: adminhelper

apps/commerce-streamer/src/main/java/com/loopers/infrastructure/ranking/RankingCarryOverScheduler.java

@@ -0,0 +1,31 @@
+package com.loopers.infrastructure.ranking;
+
+import com.loopers.ranking.RankingService;
+import java.time.LocalDate;
+import java.time.ZoneId;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class RankingCarryOverScheduler {
+
+    private static final ZoneId ZONE_ID = ZoneId.of("Asia/Seoul");
+    private static final double CARRY_OVER_WEIGHT = 0.5d;
+
+    private final RankingService rankingService;
+
+    @Scheduled(cron = "0 50 23 * * *", zone = "Asia/Seoul")
+    public void carryOverForTomorrow() {
+        LocalDate tomorrow = LocalDate.now(ZONE_ID).plusDays(1);
+        try {
+            rankingService.carryOver(tomorrow, CARRY_OVER_WEIGHT);
+            log.info("Ranking carry-over completed for date={} weight={}", tomorrow, CARRY_OVER_WEIGHT);
+        } catch (Exception exception) {
+            log.error("Ranking carry-over failed for date={}", tomorrow, exception);
+        }
+    }
+}