[BE] feat: 리뷰에 필요한 정보 조회 기능 추가

backend/src/main/java/reviewme/member/dto/response/ReviewCreationReviewerGroupResponse.java

@@ -0,0 +1,27 @@
+package reviewme.member.dto.response;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import java.time.LocalDate;
+
+@Schema(description = "리뷰 생성 시 필요한 리뷰어 그룹 응답")
+public record ReviewCreationReviewerGroupResponse(
+
+        @Schema(description = "리뷰어 그룹 아이디")
+        long id,
+
+        @Schema(description = "리뷰 그룹 이름 (레포지토리명)")
+        String name,
+
+        @Schema(description = "그룹 소개")
+        String description,
+
+        @Schema(description = "리뷰 작성 기한")
+        LocalDate deadline,
+
+        @Schema(description = "썸네일 URL")
+        String thumbnailUrl,
+
+        @Schema(description = "리뷰이")
+        MemberResponse reviewee
+) {
+}

backend/src/main/java/reviewme/member/service/ReviewerGroupService.java

@@ -7,6 +7,7 @@
 import reviewme.member.dto.response.MemberResponse;
 import reviewme.member.dto.response.ReviewerGroupResponse;
 import reviewme.member.repository.ReviewerGroupRepository;
+import reviewme.member.dto.response.ReviewCreationReviewerGroupResponse;
 
 @Service
 @RequiredArgsConstructor
@@ -24,4 +25,17 @@ public ReviewerGroupResponse findReviewerGroup(long reviewerGroupId) {
                 new MemberResponse(reviewee.getId(), reviewee.getName())
         );
     }
+
+    public ReviewCreationReviewerGroupResponse findReviewCreationReviewerGroup(long reviewerGroupId) {
+        ReviewerGroup reviewerGroup = reviewerGroupRepository.getReviewerGroupById(reviewerGroupId);
+        Member reviewee = reviewerGroup.getReviewee();
+        return new ReviewCreationReviewerGroupResponse(
+                reviewerGroup.getId(),
+                reviewerGroup.getGroupName(),
+                reviewerGroup.getDescription(),
+                reviewerGroup.getDeadline().toLocalDate(),
+                reviewerGroup.getThumbnailUrl(),
+                new MemberResponse(reviewee.getId(), reviewee.getName())
+        );
+    }
 }

backend/src/test/java/reviewme/member/service/ReviewerGroupServiceTest.java

@@ -0,0 +1,48 @@
+package reviewme.member.service;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertAll;
+import static reviewme.fixture.ReviewerGroupFixture.리뷰_그룹;
+
+import java.util.List;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import reviewme.member.domain.GithubId;
+import reviewme.member.domain.Member;
+import reviewme.member.domain.ReviewerGroup;
+import reviewme.member.dto.response.ReviewCreationReviewerGroupResponse;
+import reviewme.member.repository.MemberRepository;
+import reviewme.member.repository.ReviewerGroupRepository;
+
+@SpringBootTest(webEnvironment = WebEnvironment.NONE)
+class ReviewerGroupServiceTest {
+
+    @Autowired
+    ReviewerGroupService reviewerGroupService;
+
+    @Autowired
+    ReviewerGroupRepository reviewerGroupRepository;
+
+    @Autowired
+    MemberRepository memberRepository;
+
+    @Test
+    void 리뷰_생성_시_필요한_리뷰어_그룹_정보를_조회한다() {
+        // given
+        Member reviewee = memberRepository.save(new Member("산초", 1));
+        List<GithubId> reviewergithubIds = List.of(new GithubId(2), new GithubId(3));
+        ReviewerGroup reviewerGroup = reviewerGroupRepository.save(리뷰_그룹.create(reviewee, reviewergithubIds));
+
+        // when
+        ReviewCreationReviewerGroupResponse actual = reviewerGroupService.findReviewCreationReviewerGroup(
+                reviewerGroup.getId());
+
+        // then
+        assertAll(
+                () -> assertThat(actual.id()).isEqualTo(reviewerGroup.getId()),
+                () -> assertThat(actual.reviewee().id()).isEqualTo(reviewee.getId())
+        );
+    }
+}