Feat: 유저 생일 업데이트 시 이벤트 생성

src/main/java/slvtwn/khu/toyouserver/application/UserService.java

@@ -1,17 +1,23 @@
 package slvtwn.khu.toyouserver.application;
 
+import java.time.LocalDate;
+import java.time.temporal.ChronoUnit;
+import java.util.ArrayList;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import slvtwn.khu.toyouserver.common.response.ResponseType;
+import slvtwn.khu.toyouserver.domain.Event;
+import slvtwn.khu.toyouserver.domain.EventType;
 import slvtwn.khu.toyouserver.domain.Group;
 import slvtwn.khu.toyouserver.domain.Member;
 import slvtwn.khu.toyouserver.domain.User;
 import slvtwn.khu.toyouserver.dto.GroupRequest;
 import slvtwn.khu.toyouserver.dto.UserResponse;
 import slvtwn.khu.toyouserver.dto.UserUpdateRequest;
 import slvtwn.khu.toyouserver.exception.ToyouException;
+import slvtwn.khu.toyouserver.persistance.EventRepository;
 import slvtwn.khu.toyouserver.persistance.GroupRepository;
 import slvtwn.khu.toyouserver.persistance.MemberRepository;
 import slvtwn.khu.toyouserver.persistance.UserRepository;
@@ -21,9 +27,12 @@
 @Transactional(readOnly = true)
 public class UserService {
 
+	private static final int PERIOD_UPPER_BOUND = 100;
+
 	private final UserRepository userRepository;
 	private final MemberRepository memberRepository;
 	private final GroupRepository groupRepository;
+	private final EventRepository eventRepository;
 
 	public UserResponse getProfile(Long userId) {
 		User user = userRepository.findById(userId)
@@ -41,19 +50,6 @@ public List<UserResponse> findUsersWithFilteringOptions(Long userId, String sear
 		return findUsersWithSpecificGroup(user, search, groupId);
 	}
 
-	@Transactional
-	public void updateUser(Long userId, UserUpdateRequest request) {
-		User foundUser = userRepository.findById(userId)
-				.orElseThrow(() -> new ToyouException(ResponseType.USER_NOT_FOUND));
-		User updatedUser = userRepository.findById(request.id())
-				.map(each -> each.updateInfo(request.name(), request.birthday(),
-						request.introduction(), request.imageUrl()))
-				.orElseThrow(() -> new ToyouException(ResponseType.BAD_REQUEST));
-
-		updateUserGroups(foundUser, request.groups());
-		userRepository.save(updatedUser);
-	}
-
 	private List<UserResponse> findAllUsersWithSameGroups(User user, String search) {
 		return memberRepository.findByUser(user).stream()
 				.map(Member::getGroup)
@@ -76,6 +72,34 @@ private List<UserResponse> findUsersWithSpecificGroup(User user, String search,
 				.toList();
 	}
 
+	@Transactional
+	public void updateUser(Long userId, UserUpdateRequest request) {
+		User user = userRepository.findById(userId)
+				.orElseThrow(() -> new ToyouException(ResponseType.USER_NOT_FOUND));
+
+		user.updateInfo(request.name(), request.birthday(), request.introduction(), request.imageUrl());
+		createBirthdayEvents(user);
+		updateUserGroups(user, request.groups());
+	}
+
+	private void createBirthdayEvents(User user) {
+		eventRepository.deleteAllByUserIs(user);
+		List<Event> events = generatePeriodicalBirthdayEvents(user);
+		eventRepository.saveAll(events);
+	}
+
+	private static List<Event> generatePeriodicalBirthdayEvents(User user) {
+		List<Event> events = new ArrayList<>();
+		LocalDate birthday = user.getBirthday();
+
+		for (int yearAfter = 1; yearAfter <= PERIOD_UPPER_BOUND; yearAfter++) {
+			LocalDate birthdayYearAfter = birthday.plus(yearAfter, ChronoUnit.YEARS);
+			events.add(new Event("생일", birthdayYearAfter, EventType.BIRTHDAY,
+					"오늘 생일이에요!", user));
+		}
+		return events;
+	}
+
 	private void updateUserGroups(User user, List<GroupRequest> groupRequests) {
 		List<Member> members = memberRepository.findByUser(user);
 		memberRepository.deleteAll(members);

src/main/java/slvtwn/khu/toyouserver/persistance/EventRepository.java

@@ -4,9 +4,12 @@
 import java.util.List;
 import org.springframework.data.jpa.repository.JpaRepository;
 import slvtwn.khu.toyouserver.domain.Event;
+import slvtwn.khu.toyouserver.domain.User;
 
 public interface EventRepository extends JpaRepository<Event, Long> {
 
     List<Event> findEventsByDateGreaterThanEqual(LocalDate date);
     List<Event> findEventsByDate(LocalDate date);
+
+    void deleteAllByUserIs(User user);
 }