chore: 알림 로깅 추가 및 불필요한 코드 삭제

backend/pium/src/main/java/com/official/pium/notification/fcm/application/FcmMessageSender.java

@@ -7,54 +7,35 @@
 import com.google.firebase.messaging.Message;
 import com.google.firebase.messaging.Notification;
 import com.official.pium.notification.application.MessageSendManager;
-import com.official.pium.notification.fcm.dto.FcmMessageResponse;
 import jakarta.annotation.PostConstruct;
-import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.util.concurrent.ExecutionException;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Value;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.stereotype.Component;
-import org.springframework.web.client.RestTemplate;
 
 @Slf4j
 @Component
 @RequiredArgsConstructor
 public class FcmMessageSender implements MessageSendManager {
 
-    private static final String SYSTEM_PATH = System.getProperty("user.dir");
-    private static final String JSON_FILE_PATH = "/src/main/resources/config/pium-fcm.json";
-
-    @Value("${fcm.api.url}")
-    private String apiUrl;
-
-    @Value("${fcm.key.path}")
-    private String keyPath;
-
-    @Value("${fcm.key.scope}")
-    private String keyScope;
-
-    private final RestTemplate restTemplate;
-
     @PostConstruct
     public void initialize() {
-        FileInputStream serviceAccount;
         try {
-            serviceAccount = new FileInputStream(SYSTEM_PATH + JSON_FILE_PATH);
+            ClassPathResource resource = new ClassPathResource("config/pium-fcm.json");
             FirebaseOptions options = FirebaseOptions.builder()
-                    .setCredentials(GoogleCredentials.fromStream(serviceAccount))
+                    .setCredentials(GoogleCredentials.fromStream(resource.getInputStream()))
                     .build();
 
             if (FirebaseApp.getApps().isEmpty()) {
                 FirebaseApp.initializeApp(options);
             }
         } catch (FileNotFoundException e) {
-            log.error("파일을 찾을 수 없습니다. " + e);
+            log.error("파일을 찾을 수 없습니다. ", e);
         } catch (IOException e) {
-            log.error("FCM 인증이 실패했습니다. " + e);
+            log.error("FCM 인증이 실패했습니다. ", e);
         }
     }
 
@@ -69,59 +50,11 @@ public void sendMessageTo(String targetToken, String title, String body) {
                 .build();
         try {
             String response = FirebaseMessaging.getInstance().sendAsync(message).get();
-            log.info("응답 결과 : " + response);
+            log.info("알림 전송 성공 : " + response);
         } catch (InterruptedException e) {
-            log.error(e.getMessage());
+            log.error("FCM 알림 스레드에서 문제가 발생했습니다.", e);
         } catch (ExecutionException e) {
-            log.error(e.getMessage());
+            log.error("FCM 알림 전송에 실패했습니다.", e);
         }
     }
-
-//    public void sendMessageTo(String targetToken, String title, String body) {
-//        try {
-//            FcmMessageResponse message = makeMessage(targetToken, title, body);
-//
-//            HttpHeaders headers = new HttpHeaders();
-//            headers.set(HttpHeaders.AUTHORIZATION, "Bearer " + getAccessToken());
-//            headers.set(HttpHeaders.CONTENT_TYPE, "application/json; UTF-8");
-//
-//            HttpEntity<FcmMessageResponse> request = new HttpEntity<>(message, headers);
-//
-//            ResponseEntity<FcmMessageResponse> postResult = restTemplate.postForEntity(
-//                apiUrl,
-//                request,
-//                FcmMessageResponse.class
-//            );
-//
-//            log.info("FCM 메시지 전송 성공: {}", postResult.getBody());
-//
-//        } catch (Exception e) {
-//            log.error("FCM 메시지 전송 실패", e);
-//            throw new FcmException.FcmMessageSendException(e.getMessage());
-//        }
-//    }
-
-    private FcmMessageResponse makeMessage(String targetToken, String title, String body) {
-        return FcmMessageResponse.builder()
-                .message(FcmMessageResponse.Message.builder()
-                        .token(targetToken)
-                        .notification(FcmMessageResponse.Notification.builder()
-                                .title(title)
-                                .body(body)
-                                .image(null)
-                                .build()
-                        )
-                        .build()
-                )
-                .validate_only(false)
-                .build();
-    }
-
-    private String getAccessToken() throws IOException {
-        GoogleCredentials googleCredentials = GoogleCredentials
-                .fromStream(new ClassPathResource(keyPath).getInputStream())
-                .createScoped(keyScope);
-        googleCredentials.refreshIfExpired();
-        return googleCredentials.getAccessToken().getTokenValue();
-    }
 }