refactor: 알림 처리 시간 변경 및 예외처리 추가

src/main/java/yerong/wedle/common/utils/FcmUtils.java

@@ -7,43 +7,51 @@
 import com.google.firebase.messaging.FirebaseMessagingException;
 import com.google.firebase.messaging.MulticastMessage;
 import com.google.firebase.messaging.Notification;
+
 import java.util.Date;
 import java.util.List;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 
+@Slf4j
 @NoArgsConstructor(access = AccessLevel.PRIVATE)
 public class FcmUtils {
 
     private static final int FCM_PUSH_LIMIT_SIZE = 500;
-    private static final long ONE_WEEK = (long) 60 * 60 * 24 * 7;
-    private static final long EXPIRED_TIME_FOR_UNIX = new Date(new Date().getTime() + ONE_WEEK).getTime();
+    private static final long ONE_WEEK_IN_SECONDS = 60 * 60 * 24 * 7;
+    private static final long EXPIRED_TIME_FOR_UNIX = new Date().getTime() / 1000 + ONE_WEEK_IN_SECONDS;
 
     public static void broadCast(final List<String> registrationTokens, String title, String body) {
         limitSizeValidate(registrationTokens);
 
         MulticastMessage message = MulticastMessage.builder()
                 .setNotification(Notification.builder()
-                        .setTitle(title)  // 알림 제목
-                        .setBody(body)    // 알림 내용
+                        .setTitle(title)
+                        .setBody(body)
                         .build())
                 .setApnsConfig(ApnsConfig.builder()
-                        .setAps(Aps.builder().setAlert(body).build())  // iOS에 맞춰 알림 내용 설정
+                        .setAps(Aps
+                                .builder()
+                                .setAlert(body)
+                                .build())
                         .putHeader("apns-expiration", Long.toString(EXPIRED_TIME_FOR_UNIX))
                         .build())
                 .addAllTokens(registrationTokens)
                 .build();
 
-        BatchResponse response;
         try {
-            response = FirebaseMessaging.getInstance().sendEachForMulticast(message);
+            BatchResponse response = FirebaseMessaging.getInstance().sendEachForMulticast(message);
             pushSuccessValidate(registrationTokens, response);
         } catch (FirebaseMessagingException e) {
-            e.printStackTrace();
-            // 예외 처리 추가 가능
+            log.error("FCM 메시지 전송 중 예외 발생: {}", e.getMessage(), e);
+            for (String token : registrationTokens) {
+                log.error("유효하지 않은 토큰: {}", token);
+            }
         }
     }
 
+
     private static void limitSizeValidate(final List<String> registrationTokens) {
         if (registrationTokens.size() > FCM_PUSH_LIMIT_SIZE) {
             throw new IllegalArgumentException("FCM push 알림 수신자는 최대 500명입니다.");
@@ -54,6 +62,12 @@ private static void pushSuccessValidate(final List<String> registrationTokens, f
         System.out.println(response.getSuccessCount() + " messages were sent successfully.");
         if (response.getFailureCount() > 0) {
             System.out.println(response.getFailureCount() + " messages failed to send.");
+            response.getResponses().forEach(sendResponse -> {
+                if (!sendResponse.isSuccessful()) {
+                    System.out.println("Failed to send message to token: " + sendResponse.getMessageId());
+                    System.out.println("Error: " + sendResponse.getException().getMessage());
+                }
+            });
         }
     }
 }

src/main/java/yerong/wedle/notification/service/NotificationService.java

@@ -71,7 +71,7 @@ private CalendarEvent getCalendarEventById(Long calendarId) {
     }
 
     @Transactional
-    @Scheduled(cron = "0 10 14 * * ?", zone = "Asia/Seoul")
+    @Scheduled(cron = "0 30 15 * * ?", zone = "Asia/Seoul")
     public void sendNotifications() {
         LocalDate today = LocalDate.now();
         List<Notification> dueNotifications = notificationRepository.findByNotificationDate(today);