refactor: 재학생 인증 완료 여부에 대한 검증을 도메인 서비스로 이동

src/main/java/com/gdschongik/gdsc/domain/email/application/UnivEmailVerificationLinkSendService.java

@@ -4,8 +4,6 @@
 
 import com.gdschongik.gdsc.domain.member.dao.MemberRepository;
 import com.gdschongik.gdsc.domain.member.domain.Member;
-import com.gdschongik.gdsc.global.exception.CustomException;
-import com.gdschongik.gdsc.global.exception.ErrorCode;
 import com.gdschongik.gdsc.global.util.MemberUtil;
 import com.gdschongik.gdsc.global.util.email.EmailVerificationTokenUtil;
 import com.gdschongik.gdsc.global.util.email.HongikUnivEmailValidator;
@@ -14,6 +12,7 @@
 import java.time.Duration;
 import java.util.Optional;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -30,6 +29,7 @@ public class UnivEmailVerificationLinkSendService {
     private final EmailVerificationTokenUtil emailVerificationTokenUtil;
     private final VerificationLinkUtil verificationLinkUtil;
     private final MemberUtil memberUtil;
+
     public static final Duration VERIFICATION_TOKEN_TIME_TO_LIVE = Duration.ofMinutes(30);
 
     private static final String NOTIFICATION_MESSAGE =
@@ -45,14 +45,14 @@ public class UnivEmailVerificationLinkSendService {
 """;
 
     public void send(String univEmail) {
-        hongikUnivEmailValidator.validate(univEmail);
-        validateUnivEmailNotSatisfied(univEmail);
+        Optional<Member> member = memberRepository.findByUnivEmail(univEmail);
+
+        hongikUnivEmailValidator.validate(univEmail, member);
 
         String verificationToken = generateVerificationToken(univEmail);
         String verificationLink = verificationLinkUtil.createLink(verificationToken);
         String mailContent = writeMailContentWithVerificationLink(verificationLink);
         mailSender.send(univEmail, VERIFICATION_EMAIL_SUBJECT, mailContent);
-    }
 
         log.info("[UnivEmailVerificationLinkSendService] 학생 인증 메일 발송: univEmail={}", univEmail);
     }

src/main/java/com/gdschongik/gdsc/global/util/email/HongikUnivEmailValidator.java

@@ -12,13 +12,17 @@
 @DomainService
 public class HongikUnivEmailValidator {
 
-    public void validate(String email) {
+    public void validate(String email, Optional<Member> optionalMember) {
         if (!email.contains(HONGIK_UNIV_MAIL_DOMAIN)) {
             throw new CustomException(ErrorCode.UNIV_EMAIL_DOMAIN_MISMATCH);
         }
 
         if (!email.matches(HONGIK_EMAIL)) {
-            throw new CustomException(ErrorCode.UNIV_EMAIL_FORMAT_MISMATCH);
+            throw new CustomException(UNIV_EMAIL_FORMAT_MISMATCH);
+        }
+
+        if (optionalMember.isPresent()) {
+            throw new CustomException(UNIV_EMAIL_ALREADY_SATISFIED);
         }
     }
 }