[BE] feat: 새로운 FCM 등록 기능 추가 (#998)

backend/src/main/java/com/festago/fcm/application/FCMMemberDeleteEventListener.java

@@ -1,6 +1,8 @@
 package com.festago.fcm.application;
 
 import com.festago.auth.dto.event.MemberDeletedEvent;
+import com.festago.fcm.application.command.MemberFCMCommandService;
+import com.festago.member.domain.Member;
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.event.EventListener;
 import org.springframework.stereotype.Component;
@@ -9,10 +11,11 @@
 @RequiredArgsConstructor
 public class FCMMemberDeleteEventListener {
 
-    private final MemberFCMService memberFCMService;
+    private final MemberFCMCommandService memberFCMService;
 
     @EventListener
     public void memberDeleteEventHandler(MemberDeletedEvent event) {
-        memberFCMService.deleteAllMemberFCM(event.member().getId());
+        Member member = event.member();
+        memberFCMService.deleteAllMemberFCM(member.getId());
     }
 }

backend/src/main/java/com/festago/fcm/application/FCMNotificationEventListener.java

@@ -1,7 +1,10 @@
 package com.festago.fcm.application;
 
 import com.festago.entry.dto.event.EntryProcessEvent;
+import com.festago.fcm.application.command.MemberFCMCommandService;
 import com.festago.fcm.domain.FCMChannel;
+import com.festago.fcm.domain.MemberFCM;
+import com.festago.fcm.repository.MemberFCMRepository;
 import com.google.firebase.messaging.AndroidConfig;
 import com.google.firebase.messaging.AndroidNotification;
 import com.google.firebase.messaging.BatchResponse;
@@ -10,25 +13,23 @@
 import com.google.firebase.messaging.Message;
 import com.google.firebase.messaging.SendResponse;
 import java.util.List;
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.context.annotation.Profile;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Component;
 import org.springframework.transaction.event.TransactionPhase;
 import org.springframework.transaction.event.TransactionalEventListener;
 
+// TODO 비즈니스 로직 새로운 Service 클래스 생성 뒤 이관할 것
 @Component
 @Profile("prod | dev")
 @Slf4j
+@RequiredArgsConstructor
 public class FCMNotificationEventListener {
 
     private final FirebaseMessaging firebaseMessaging;
-    private final MemberFCMService memberFCMService;
-
-    public FCMNotificationEventListener(FirebaseMessaging firebaseMessaging, MemberFCMService memberFCMService) {
-        this.firebaseMessaging = firebaseMessaging;
-        this.memberFCMService = memberFCMService;
-    }
+    private final MemberFCMRepository memberFCMRepository;
 
     @TransactionalEventListener(phase = TransactionPhase.AFTER_COMMIT)
     @Async
@@ -44,7 +45,9 @@ public void sendFcmNotification(EntryProcessEvent event) {
     }
 
     private List<String> getMemberFCMTokens(Long memberId) {
-        return memberFCMService.findAllMemberFCMTokens(memberId);
+        return memberFCMRepository.findAllByMemberId(memberId).stream()
+            .map(MemberFCM::getFcmToken)
+            .toList();
     }
 
     private List<Message> createMessages(List<String> tokens, String channelId) {

backend/src/main/java/com/festago/fcm/application/command/MemberFCMCommandService.java

@@ -0,0 +1,40 @@
+package com.festago.fcm.application.command;
+
+import com.festago.fcm.domain.MemberFCM;
+import com.festago.fcm.domain.MemberFCMExpiredAtPolicy;
+import com.festago.fcm.domain.MemberFCMRemoveOldTokensPolicy;
+import com.festago.fcm.repository.MemberFCMRepository;
+import java.time.LocalDateTime;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional
+@RequiredArgsConstructor
+public class MemberFCMCommandService {
+
+    private final MemberFCMRepository memberFCMRepository;
+    private final MemberFCMExpiredAtPolicy memberFCMExpiredAtPolicy;
+    private final MemberFCMRemoveOldTokensPolicy memberFCMDeleteOldTokensPolicy;
+
+    // TODO 별도의 Service 클래스 생성해서 비즈니스 로직 이관 생각해 볼 것
+    public void registerFCM(Long memberId, String fcmToken) {
+        List<MemberFCM> memberFCMs = memberFCMRepository.findAllByMemberId(memberId);
+        LocalDateTime expiredAt = memberFCMExpiredAtPolicy.provide();
+        memberFCMs.stream()
+            .filter(memberFCM -> memberFCM.isSameToken(fcmToken))
+            .findAny()
+            .ifPresentOrElse(memberFCM -> {
+                memberFCM.changeExpiredAt(expiredAt);
+            }, () -> {
+                memberFCMDeleteOldTokensPolicy.delete(memberFCMs);
+                memberFCMRepository.save(new MemberFCM(memberId, fcmToken, expiredAt));
+            });
+    }
+
+    public void deleteAllMemberFCM(Long memberId) {
+        memberFCMRepository.deleteAllByMemberId(memberId);
+    }
+}

backend/src/main/java/com/festago/fcm/domain/MemberFCM.java

@@ -11,6 +11,10 @@
 import jakarta.persistence.UniqueConstraint;
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Size;
+import java.time.LocalDateTime;
+import java.util.Objects;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
 
 @Entity
 @Table(
@@ -23,6 +27,7 @@
             }
         )
     })
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
 public class MemberFCM extends BaseTimeEntity {
 
     private static final int MAX_FCM_TOKEN_LENGTH = 255;
@@ -40,23 +45,24 @@ public class MemberFCM extends BaseTimeEntity {
     @Column(name = "fcm_token")
     private String fcmToken;
 
-    protected MemberFCM() {
-    }
+    private LocalDateTime expiredAt;
 
-    public MemberFCM(Long memberId, String fcmToken) {
-        this(null, memberId, fcmToken);
+    public MemberFCM(Long memberId, String fcmToken, LocalDateTime expiredAt) {
+        this(null, memberId, fcmToken, expiredAt);
     }
 
-    public MemberFCM(Long id, Long memberId, String fcmToken) {
-        validate(memberId, fcmToken);
+    public MemberFCM(Long id, Long memberId, String fcmToken, LocalDateTime expiredAt) {
+        validate(memberId, fcmToken, expiredAt);
         this.id = id;
         this.memberId = memberId;
         this.fcmToken = fcmToken;
+        this.expiredAt = expiredAt;
     }
 
-    private void validate(Long memberId, String fcmToken) {
+    private void validate(Long memberId, String fcmToken, LocalDateTime expiredAt) {
         validateMemberId(memberId);
         validateFcmToken(fcmToken);
+        validateExpiredAt(expiredAt);
     }
 
     private void validateMemberId(Long memberId) {
@@ -69,6 +75,19 @@ private void validateFcmToken(String fcmToken) {
         Validator.maxLength(fcmToken, MAX_FCM_TOKEN_LENGTH, fieldName);
     }
 
+    private void validateExpiredAt(LocalDateTime expiredAt) {
+        Validator.notNull(expiredAt, "expiredAt");
+    }
+
+    public void changeExpiredAt(LocalDateTime expiredAt) {
+        validateExpiredAt(expiredAt);
+        this.expiredAt = expiredAt;
+    }
+
+    public boolean isSameToken(String fcmToken) {
+        return Objects.equals(this.fcmToken, fcmToken);
+    }
+
     public Long getId() {
         return id;
     }
@@ -80,4 +99,8 @@ public Long getMemberId() {
     public String getFcmToken() {
         return fcmToken;
     }
+
+    public LocalDateTime getExpiredAt() {
+        return expiredAt;
+    }
 }

backend/src/main/java/com/festago/fcm/domain/MemberFCMExpiredAtPolicy.java

@@ -0,0 +1,8 @@
+package com.festago.fcm.domain;
+
+import java.time.LocalDateTime;
+
+public interface MemberFCMExpiredAtPolicy {
+
+    LocalDateTime provide();
+}

backend/src/main/java/com/festago/fcm/domain/MemberFCMExpiredAtPolicyImpl.java

@@ -0,0 +1,19 @@
+package com.festago.fcm.domain;
+
+import java.time.Clock;
+import java.time.LocalDateTime;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+@Component
+@RequiredArgsConstructor
+public class MemberFCMExpiredAtPolicyImpl implements MemberFCMExpiredAtPolicy {
+
+    private static final int EXPIRED_DAY_OFFSET = 180;
+    private final Clock clock;
+
+    @Override
+    public LocalDateTime provide() {
+        return LocalDateTime.now(clock).plusDays(EXPIRED_DAY_OFFSET);
+    }
+}

backend/src/main/java/com/festago/fcm/domain/MemberFCMRemoveOldTokensPolicy.java

@@ -0,0 +1,17 @@
+package com.festago.fcm.domain;
+
+import com.festago.fcm.repository.MemberFCMRepository;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Component;
+
+@Component
+@RequiredArgsConstructor
+public class MemberFCMRemoveOldTokensPolicy {
+
+    private final MemberFCMRepository memberFCMRepository;
+
+    public void delete(List<MemberFCM> memberFCMs) {
+        memberFCMRepository.deleteByIn(memberFCMs);
+    }
+}

backend/src/main/java/com/festago/fcm/dto/v1/MemberFCMTokenRegisterV1Request.java

@@ -0,0 +1,7 @@
+package com.festago.fcm.dto.v1;
+
+public record MemberFCMTokenRegisterV1Request(
+    String fcmToken
+) {
+
+}

backend/src/main/java/com/festago/fcm/presentation/v1/MemberFCMV1Controller.java

@@ -0,0 +1,30 @@
+package com.festago.fcm.presentation.v1;
+
+import com.festago.auth.annotation.MemberAuth;
+import com.festago.auth.domain.authentication.MemberAuthentication;
+import com.festago.fcm.application.command.MemberFCMCommandService;
+import com.festago.fcm.dto.v1.MemberFCMTokenRegisterV1Request;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/v1/fcm")
+@RequiredArgsConstructor
+public class MemberFCMV1Controller {
+
+    private final MemberFCMCommandService memberFCMCommandService;
+
+    @MemberAuth
+    @PostMapping
+    public ResponseEntity<Void> registerFCM(
+        MemberAuthentication memberAuthentication,
+        @RequestBody MemberFCMTokenRegisterV1Request request
+    ) {
+        memberFCMCommandService.registerFCM(memberAuthentication.getId(), request.fcmToken());
+        return ResponseEntity.ok().build();
+    }
+}

backend/src/main/java/com/festago/fcm/repository/MemberFCMRepository.java

@@ -2,13 +2,22 @@
 
 import com.festago.fcm.domain.MemberFCM;
 import java.util.List;
-import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.Repository;
+import org.springframework.data.repository.query.Param;
 
-public interface MemberFCMRepository extends JpaRepository<MemberFCM, Long> {
+public interface MemberFCMRepository extends Repository<MemberFCM, Long> {
+
+    MemberFCM save(MemberFCM memberFCM);
 
     List<MemberFCM> findAllByMemberId(Long memberId);
 
-    boolean existsByMemberIdAndFcmToken(Long memberId, String fcmToken);
+    @Modifying
+    @Query("delete from MemberFCM mf where mf.memberId = :memberId")
+    void deleteAllByMemberId(@Param("memberId") Long memberId);
 
-    void deleteAllByMemberId(Long memberId);
+    @Modifying
+    @Query("delete from MemberFCM mf where mf in :memberFCMs")
+    void deleteByIn(List<MemberFCM> memberFCMs);
 }