✨ feat: 공고 수정 기능 예외 처리 추가 (#59)

Author: xxoznge

src/main/java/com/sponus/sponusbe/domain/announcement/entity/Announcement.java

@@ -67,10 +67,11 @@ public void increaseViewCount() {
 		this.viewCount++;
 	}
 
-	public void update(String title, AnnouncementType type, AnnouncementCategory category, String content) {
+	public void update(String title, AnnouncementType type, AnnouncementCategory category, String content, AnnouncementStatus status) {
 		this.title = title == null ? this.title : title;
 		this.type = type == null ? this.type : type;
 		this.category = category == null ? this.category : category;
 		this.content = content == null ? this.content : content;
+		this.status = (status != null) ? status : this.status;
 	}
 }

src/main/java/com/sponus/sponusbe/domain/announcement/exception/AnnouncementErrorCode.java

@@ -14,6 +14,7 @@ public enum AnnouncementErrorCode implements BaseErrorCode {
 	ANNOUNCEMENT_ERROR(HttpStatus.BAD_REQUEST, "ANC4000", "공지사항 관련 에러"),
 	ANNOUNCEMENT_ALREADY_DELETED(HttpStatus.BAD_REQUEST, "ANC4001", "이미 삭제된 공지사항입니다."),
 	INVALID_ORGANIZATION(HttpStatus.BAD_REQUEST, "ANC4002", "해당 단체의 공고가 아닙니다."),
+	INVALID_ANNOUNCEMENT_STATUS(HttpStatus.BAD_REQUEST, "ANC4003", "해당 상태의 공고는 수정할 수 없습니다."),
 	ANNOUNCEMENT_NOT_FOUND(HttpStatus.NOT_FOUND, "ANC4040", "해당 공지사항이 존재하지 않습니다.");
 
 	private final HttpStatus httpStatus;

src/main/java/com/sponus/sponusbe/domain/announcement/service/AnnouncementService.java

@@ -64,10 +64,12 @@ public AnnouncementUpdateResponse updateAnnouncement(Organization authOrganizati
 		final Announcement announcement = announcementRepository.findById(proposeId)
 			.orElseThrow(() -> new AnnouncementException(AnnouncementErrorCode.ANNOUNCEMENT_NOT_FOUND));
 
+		if (announcement.getStatus() != AnnouncementStatus.POSTED)
+			throw new AnnouncementException(AnnouncementErrorCode.INVALID_ANNOUNCEMENT_STATUS);
 		if (!isOrganizationsAnnouncement(authOrganization.getId(), announcement))
 			throw new AnnouncementException(AnnouncementErrorCode.INVALID_ORGANIZATION);
 
-		announcement.update(request.title(), request.type(), request.category(), request.content());
+		announcement.update(request.title(), request.type(), request.category(), request.content(), request.status());
 		announcementRepository.save(announcement);
 		return AnnouncementUpdateResponse.from(announcement);
 	}