feat: 스터디 알림 기능을 구현한다.

backend/build.gradle

@@ -76,6 +76,9 @@ dependencies {
     annotationProcessor "javax.persistence:javax.persistence-api"
     annotationProcessor "javax.annotation:javax.annotation-api"
     annotationProcessor "com.querydsl:querydsl-apt:${dependencyManagement.importedProperties['querydsl.version']}:jpa"
+
+    // fcm
+    implementation 'com.google.firebase:firebase-admin:9.1.1'
 }
 
 tasks.named('test') {

backend/src/main/java/com/yigongil/backend/application/AuthService.java

@@ -5,7 +5,7 @@
 import com.yigongil.backend.config.oauth.GithubProfileResponse;
 import com.yigongil.backend.domain.member.Member;
 import com.yigongil.backend.domain.member.MemberRepository;
-import com.yigongil.backend.request.TokenRequest;
+import com.yigongil.backend.request.RefreshTokenRequest;
 import com.yigongil.backend.response.TokenResponse;
 import java.util.Optional;
 import org.springframework.stereotype.Service;
@@ -40,7 +40,7 @@ public TokenResponse login(String code) {
         return createTokens(id);
     }
 
-    public TokenResponse refresh(TokenRequest request) {
+    public TokenResponse refresh(RefreshTokenRequest request) {
         String refreshToken = request.refreshToken();
 
         jwtTokenProvider.detectTokenTheft(refreshToken);

backend/src/main/java/com/yigongil/backend/application/MustDoService.java

@@ -23,6 +23,7 @@ public MustDoService(
     public void updateMustDo(Member member, Long roundId, MustDoUpdateRequest request) {
         Round round = findRoundById(roundId);
         round.updateMustDo(member, request.content());
+        roundRepository.save(round);
     }
 
     private Round findRoundById(Long roundId) {

backend/src/main/java/com/yigongil/backend/application/StudyEventListener.java

@@ -1,6 +1,6 @@
 package com.yigongil.backend.application;
 
-import com.yigongil.backend.domain.event.MemberDeleteEvent;
+import com.yigongil.backend.domain.event.MemberDeletedEvent;
 import org.springframework.stereotype.Component;
 import org.springframework.transaction.event.TransactionPhase;
 import org.springframework.transaction.event.TransactionalEventListener;
@@ -15,7 +15,7 @@ public StudyEventListener(StudyService studyService) {
     }
 
     @TransactionalEventListener(phase = TransactionPhase.BEFORE_COMMIT)
-    public void listenMemberDeleteEvent(MemberDeleteEvent event) {
+    public void listenMemberDeleteEvent(MemberDeletedEvent event) {
         studyService.deleteByMasterId(event.memberId());
     }
 }

backend/src/main/java/com/yigongil/backend/application/StudyService.java

@@ -1,6 +1,8 @@
 package com.yigongil.backend.application;
 
 import com.yigongil.backend.domain.certification.Certification;
+import com.yigongil.backend.domain.meetingdayoftheweek.MeetingDayOfTheWeek;
+import com.yigongil.backend.domain.meetingdayoftheweek.MeetingDayOfTheWeekRepository;
 import com.yigongil.backend.domain.member.Member;
 import com.yigongil.backend.domain.round.Round;
 import com.yigongil.backend.domain.round.RoundRepository;
@@ -46,18 +48,21 @@ public class StudyService {
     private final CertificationService certificationService;
     private final FeedService feedService;
     private final RoundRepository roundRepository;
+    private final MeetingDayOfTheWeekRepository meetingDayOfTheWeekRepository;
 
     public StudyService(
             StudyRepository studyRepository,
             StudyMemberRepository studyMemberRepository,
             CertificationService certificationService,
             FeedService feedService,
-            final RoundRepository roundRepository) {
+            final RoundRepository roundRepository,
+            MeetingDayOfTheWeekRepository meetingDayOfTheWeekRepository) {
         this.studyRepository = studyRepository;
         this.studyMemberRepository = studyMemberRepository;
         this.certificationService = certificationService;
         this.feedService = feedService;
         this.roundRepository = roundRepository;
+        this.meetingDayOfTheWeekRepository = meetingDayOfTheWeekRepository;
     }
 
     @Transactional
@@ -128,6 +133,7 @@ public List<MyStudyResponse> findMyStudies(Member member) {
     public void apply(Member member, Long studyId) {
         Study study = findStudyById(studyId);
         study.apply(member);
+        studyRepository.save(study);
     }
 
     @Transactional
@@ -162,6 +168,7 @@ public void permitApplicant(Member master, Long studyId, Long memberId) {
         Study study = studyMember.getStudy();
 
         study.permit(studyMember.getMember(), master);
+        studyRepository.save(study);
     }
 
     @Transactional(readOnly = true)
@@ -230,9 +237,12 @@ public void proceedRound(LocalDate today) {
     @Transactional
     public void start(Member member, Long studyId, StudyStartRequest request) {
         List<DayOfWeek> meetingDaysOfTheWeek = createDayOfWeek(request.meetingDaysOfTheWeek());
-
         Study study = findStudyById(studyId);
         study.start(member, meetingDaysOfTheWeek, LocalDateTime.now());
+        for (MeetingDayOfTheWeek meetingDayOfTheWeek : study.getMeetingDaysOfTheWeek()) {
+            meetingDayOfTheWeekRepository.save(meetingDayOfTheWeek);
+        }
+        studyRepository.save(study);
     }
 
     private List<DayOfWeek> createDayOfWeek(List<String> daysOfTheWeek) {

backend/src/main/java/com/yigongil/backend/domain/BaseEntity.java

@@ -1,22 +1,17 @@
 package com.yigongil.backend.domain;
 
-import com.yigongil.backend.domain.event.DomainEvent;
 import java.time.LocalDateTime;
-import java.util.ArrayList;
-import java.util.Collection;
 import javax.persistence.Column;
 import javax.persistence.EntityListeners;
 import javax.persistence.MappedSuperclass;
-import javax.persistence.Transient;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.LastModifiedDate;
-import org.springframework.data.domain.AfterDomainEventPublication;
-import org.springframework.data.domain.DomainEvents;
+import org.springframework.data.domain.AbstractAggregateRoot;
 import org.springframework.data.jpa.domain.support.AuditingEntityListener;
 
 @EntityListeners(AuditingEntityListener.class)
 @MappedSuperclass
-public abstract class BaseEntity {
+public abstract class BaseEntity extends AbstractAggregateRoot<BaseEntity> {
 
     @CreatedDate
     @Column(nullable = false)
@@ -25,23 +20,6 @@ public abstract class BaseEntity {
     @LastModifiedDate
     protected LocalDateTime updatedAt;
 
-    @Transient
-    private Collection<DomainEvent> domainEvents = new ArrayList<>();
-
-    @DomainEvents
-    public Collection<DomainEvent> events() {
-        return domainEvents;
-    }
-
-    @AfterDomainEventPublication
-    public void clear() {
-        domainEvents.clear();
-    }
-
-    protected void register(DomainEvent event) {
-        domainEvents.add(event);
-    }
-
     public LocalDateTime getCreatedAt() {
         return createdAt;
     }

backend/src/main/java/com/yigongil/backend/domain/certification/Certification.java

@@ -1,6 +1,7 @@
 package com.yigongil.backend.domain.certification;
 
 import com.yigongil.backend.domain.BaseEntity;
+import com.yigongil.backend.domain.event.CertificationCreatedEvent;
 import com.yigongil.backend.domain.member.Member;
 import com.yigongil.backend.domain.round.Round;
 import com.yigongil.backend.domain.study.Study;
@@ -11,6 +12,7 @@
 import javax.persistence.Id;
 import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
+import javax.persistence.PostPersist;
 import lombok.Builder;
 import lombok.Getter;
 
@@ -59,4 +61,9 @@ public Certification(
         this.createdAt = createdAt;
         this.round = round;
     }
+
+    @PostPersist
+    public void registerCreatedEvent() {
+        registerEvent(new CertificationCreatedEvent(study.getId(), study.getName(), author.getGithubId()));
+    }
 }

backend/src/main/java/com/yigongil/backend/domain/event/CertificationCreatedEvent.java

@@ -0,0 +1,8 @@
+package com.yigongil.backend.domain.event;
+
+public record CertificationCreatedEvent(
+        Long studyId,
+        String studyName,
+        String authorGithubId
+) {
+}

backend/src/main/java/com/yigongil/backend/domain/event/FeedPostCreatedEvent.java

@@ -0,0 +1,15 @@
+package com.yigongil.backend.domain.event;
+
+import java.time.LocalDateTime;
+
+public record FeedPostCreatedEvent
+        (
+                Long studyId,
+                String studyName,
+                String authorGithubId,
+                String content,
+                String imageUrl,
+                LocalDateTime createdAt
+        ) implements DomainEvent {
+
+}

backend/src/main/java/com/yigongil/backend/domain/event/MemberDeletedEvent.java

@@ -0,0 +1,5 @@
+package com.yigongil.backend.domain.event;
+
+public record MemberDeletedEvent(Long memberId) implements DomainEvent {
+
+}

backend/src/main/java/com/yigongil/backend/domain/event/MustDoUpdatedEvent.java

@@ -0,0 +1,8 @@
+package com.yigongil.backend.domain.event;
+
+public record MustDoUpdatedEvent(
+        Long studyId,
+        String studyName,
+        String mustDo
+) implements DomainEvent{
+}

backend/src/main/java/com/yigongil/backend/domain/event/StudyAppliedEvent.java

@@ -0,0 +1,5 @@
+package com.yigongil.backend.domain.event;
+
+public record StudyAppliedEvent(Long studyMasterId, String studyName, String appliedMemberGithubId) implements DomainEvent {
+
+}

backend/src/main/java/com/yigongil/backend/domain/event/StudyCreatedEvent.java

@@ -0,0 +1,5 @@
+package com.yigongil.backend.domain.event;
+
+public record StudyCreatedEvent(Long studyId, Long masterId) implements DomainEvent {
+
+}

backend/src/main/java/com/yigongil/backend/domain/event/StudyPermittedEvent.java

@@ -0,0 +1,5 @@
+package com.yigongil.backend.domain.event;
+
+public record StudyPermittedEvent(Long permittedMemberId, Long studyId, String studyName) implements DomainEvent {
+
+}

backend/src/main/java/com/yigongil/backend/domain/event/StudyStartedEvent.java

@@ -0,0 +1,5 @@
+package com.yigongil.backend.domain.event;
+
+public record StudyStartedEvent(Long studyId, String studyName) implements DomainEvent {
+
+}

backend/src/main/java/com/yigongil/backend/domain/feedpost/FeedPost.java

@@ -1,6 +1,7 @@
 package com.yigongil.backend.domain.feedpost;
 
 import com.yigongil.backend.domain.BaseEntity;
+import com.yigongil.backend.domain.event.FeedPostCreatedEvent;
 import com.yigongil.backend.domain.member.Member;
 import com.yigongil.backend.domain.study.Study;
 import java.time.LocalDateTime;
@@ -11,6 +12,7 @@
 import javax.persistence.Id;
 import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
+import javax.persistence.PostPersist;
 import lombok.Builder;
 import lombok.Getter;
 
@@ -54,6 +56,18 @@ public FeedPost(
         this.createdAt = createdAt;
     }
 
+    @PostPersist
+    public void registerCreatedEvent() {
+        registerEvent(new FeedPostCreatedEvent(
+                study.getId(),
+                study.getName(),
+                author.getGithubId(),
+                content,
+                imageUrl,
+                createdAt
+        ));
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {

backend/src/main/java/com/yigongil/backend/domain/meetingdayoftheweek/MeetingDayOfTheWeekRepository.java

@@ -0,0 +1,9 @@
+package com.yigongil.backend.domain.meetingdayoftheweek;
+
+import org.springframework.data.repository.Repository;
+
+public interface MeetingDayOfTheWeekRepository extends Repository<MeetingDayOfTheWeek, Long> {
+
+    MeetingDayOfTheWeek save(MeetingDayOfTheWeek meetingDayOfTheWeek);
+
+}

backend/src/main/java/com/yigongil/backend/domain/member/Member.java

@@ -1,7 +1,7 @@
 package com.yigongil.backend.domain.member;
 
 import com.yigongil.backend.domain.BaseEntity;
-import com.yigongil.backend.domain.event.MemberDeleteEvent;
+import com.yigongil.backend.domain.event.MemberDeletedEvent;
 import java.util.Objects;
 import javax.persistence.Column;
 import javax.persistence.Embedded;
@@ -103,7 +103,7 @@ public String getIntroduction() {
 
     @PreRemove
     public void registerDeleteEvent() {
-        register(new MemberDeleteEvent(id));
+        registerEvent(new MemberDeletedEvent(id));
     }
 
     public void addExperience(int exp) {

backend/src/main/java/com/yigongil/backend/domain/round/Round.java

@@ -1,6 +1,7 @@
 package com.yigongil.backend.domain.round;
 
 import com.yigongil.backend.domain.BaseEntity;
+import com.yigongil.backend.domain.event.MustDoUpdatedEvent;
 import com.yigongil.backend.domain.meetingdayoftheweek.MeetingDayOfTheWeek;
 import com.yigongil.backend.domain.member.Member;
 import com.yigongil.backend.domain.roundofmember.RoundOfMember;
@@ -54,7 +55,7 @@ public class Round extends BaseEntity {
     @JoinColumn(name = "master_id", nullable = false)
     private Member master;
 
-    @Cascade(CascadeType.PERSIST)
+    @Cascade({CascadeType.PERSIST, CascadeType.MERGE})
     @OnDelete(action = OnDeleteAction.CASCADE)
     @OneToMany
     @JoinColumn(name = "round_id", nullable = false)
@@ -106,6 +107,7 @@ public void updateMustDo(Member author, String content) {
         validateTodoLength(content);
         validateMaster(author);
         mustDo = content;
+        registerEvent(new MustDoUpdatedEvent(study.getId(), study.getName(), content));
     }
 
     public void validateMaster(Member member) {

backend/src/main/java/com/yigongil/backend/domain/round/RoundRepository.java

@@ -11,4 +11,6 @@ public interface RoundRepository extends Repository<Round, Long> {
     Optional<Round> findById(Long id);
 
     List<Round> findAllByStudyIdAndWeekNumber(Long studyId, Integer weekNumber);
+
+    Round save(Round round);
 }