feat: 어드민 멤버 가입신청 승인하기 api 구현

src/main/java/com/gdschongik/gdsc/domain/member/api/AdminMemberController.java

@@ -1,9 +1,11 @@
 package com.gdschongik.gdsc.domain.member.api;
 
 import com.gdschongik.gdsc.domain.member.application.MemberService;
+import com.gdschongik.gdsc.domain.member.dto.request.MemberGrantRequest;
 import com.gdschongik.gdsc.domain.member.dto.request.MemberQueryRequest;
 import com.gdschongik.gdsc.domain.member.dto.request.MemberUpdateRequest;
 import com.gdschongik.gdsc.domain.member.dto.response.MemberFindAllResponse;
+import com.gdschongik.gdsc.domain.member.dto.response.MemberGrantResponse;
 import com.gdschongik.gdsc.domain.member.dto.response.MemberPendingFindAllResponse;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -56,4 +58,11 @@ public ResponseEntity<Void> updateMember(
         memberService.updateMember(memberId, request);
         return ResponseEntity.ok().build();
     }
+
+    @Operation(summary = "회원 승인", description = "회원의 가입을 승인합니다.")
+    @PutMapping("/grant")
+    public ResponseEntity<MemberGrantResponse> grantMember(@Valid @RequestBody MemberGrantRequest request) {
+        MemberGrantResponse response = memberService.grantMember(request);
+        return ResponseEntity.ok().body(response);
+    }
 }

src/main/java/com/gdschongik/gdsc/domain/member/application/MemberService.java

@@ -5,12 +5,16 @@
 import com.gdschongik.gdsc.domain.member.dao.MemberRepository;
 import com.gdschongik.gdsc.domain.member.domain.Member;
 import com.gdschongik.gdsc.domain.member.domain.MemberRole;
+import com.gdschongik.gdsc.domain.member.dto.request.MemberGrantRequest;
 import com.gdschongik.gdsc.domain.member.dto.request.MemberQueryRequest;
 import com.gdschongik.gdsc.domain.member.dto.request.MemberUpdateRequest;
 import com.gdschongik.gdsc.domain.member.dto.response.MemberFindAllResponse;
+import com.gdschongik.gdsc.domain.member.dto.response.MemberGrantResponse;
 import com.gdschongik.gdsc.domain.member.dto.response.MemberPendingFindAllResponse;
 import com.gdschongik.gdsc.global.exception.CustomException;
 import com.gdschongik.gdsc.global.exception.ErrorCode;
+import java.util.List;
+import java.util.Optional;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
@@ -46,4 +50,20 @@ public Page<MemberPendingFindAllResponse> findAllPendingMembers(Pageable pageabl
         Page<Member> members = memberRepository.findAllByRole(MemberRole.GUEST, pageable);
         return members.map(MemberPendingFindAllResponse::of);
     }
+
+    @Transactional
+    public MemberGrantResponse grantMember(MemberGrantRequest request) {
+        List<Member> verifiedMembers = getVerifiedMembers(request);
+        verifiedMembers.forEach(Member::grant);
+        return MemberGrantResponse.of(verifiedMembers);
+    }
+
+    private List<Member> getVerifiedMembers(MemberGrantRequest request) {
+        List<Long> memberIdList = request.memberIdList();
+        return memberIdList.stream()
+                .map(memberRepository::findVerifiedById)
+                .filter(Optional::isPresent)
+                .map(Optional::get)
+                .toList();
+    }
 }

src/main/java/com/gdschongik/gdsc/domain/member/dao/MemberCustomRepository.java

@@ -10,4 +10,6 @@ public interface MemberCustomRepository {
     Page<Member> findAll(MemberQueryRequest queryRequest, Pageable pageable);
 
     Optional<Member> findNormalByOauthId(String oauthId);
+
+    Optional<Member> findVerifiedById(Long id);
 }

src/main/java/com/gdschongik/gdsc/domain/member/dao/MemberCustomRepositoryImpl.java

@@ -4,6 +4,7 @@
 
 import com.gdschongik.gdsc.domain.member.domain.Member;
 import com.gdschongik.gdsc.domain.member.domain.MemberStatus;
+import com.gdschongik.gdsc.domain.member.domain.RequirementStatus;
 import com.gdschongik.gdsc.domain.member.dto.request.MemberQueryRequest;
 import com.querydsl.core.BooleanBuilder;
 import com.querydsl.core.types.dsl.BooleanExpression;
@@ -44,6 +45,34 @@ public Optional<Member> findNormalByOauthId(String oauthId) {
                 .fetchOne());
     }
 
+    @Override
+    public Optional<Member> findVerifiedById(Long id) {
+        return Optional.ofNullable(queryFactory
+                .selectFrom(member)
+                .where(eqId(id), requirementVerified())
+                .fetchOne());
+    }
+
+    private BooleanBuilder requirementVerified() {
+        return new BooleanBuilder().and(discordVerified()).and(univVerified()).and(paymentVerified());
+    }
+
+    private BooleanExpression discordVerified() {
+        return member.requirement.discordStatus.eq(RequirementStatus.VERIFIED);
+    }
+
+    private BooleanExpression univVerified() {
+        return member.requirement.univStatus.eq(RequirementStatus.VERIFIED);
+    }
+
+    private BooleanExpression paymentVerified() {
+        return member.requirement.paymentStatus.eq(RequirementStatus.VERIFIED);
+    }
+
+    private BooleanExpression eqId(Long id) {
+        return member.id.eq(id);
+    }
+
     private BooleanExpression eqOauthId(String oauthId) {
         return member.oauthId.eq(oauthId);
     }

src/main/java/com/gdschongik/gdsc/domain/member/domain/Member.java

@@ -134,4 +134,8 @@ private void validateStatusUpdatable() {
             throw new CustomException(MEMBER_FORBIDDEN);
         }
     }
+
+    public void grant() {
+        this.role = MemberRole.USER;
+    }
 }

src/main/java/com/gdschongik/gdsc/domain/member/dto/request/MemberGrantRequest.java

@@ -0,0 +1,6 @@
+package com.gdschongik.gdsc.domain.member.dto.request;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import java.util.List;
+
+public record MemberGrantRequest(@Schema(description = "승인할 멤버 ID 리스트") List<Long> memberIdList) {}

src/main/java/com/gdschongik/gdsc/domain/member/dto/response/MemberGrantResponse.java

@@ -0,0 +1,13 @@
+package com.gdschongik.gdsc.domain.member.dto.response;
+
+import com.gdschongik.gdsc.domain.member.domain.Member;
+import io.swagger.v3.oas.annotations.media.Schema;
+import java.util.List;
+
+public record MemberGrantResponse(@Schema(description = "승인에 성공한 멤버 ID 리스트") List<Long> grantedMembers) {
+    public static MemberGrantResponse of(List<Member> grantedMembers) {
+        List<Long> grantedMemberIdList =
+                grantedMembers.stream().map(Member::getId).toList();
+        return new MemberGrantResponse(grantedMemberIdList);
+    }
+}