활동 상세 조회 API 응답 수정 완료

src/main/java/page/clab/api/domain/activity/activitygroup/application/ActivityGroupMemberService.java

@@ -24,6 +24,7 @@
 import page.clab.api.domain.activity.activitygroup.dto.param.GroupScheduleDto;
 import page.clab.api.domain.activity.activitygroup.dto.request.ApplyFormRequestDto;
 import page.clab.api.domain.activity.activitygroup.dto.response.ActivityGroupBoardResponseDto;
+import page.clab.api.domain.activity.activitygroup.dto.response.ActivityGroupDetailResponseDto;
 import page.clab.api.domain.activity.activitygroup.dto.response.ActivityGroupProjectResponseDto;
 import page.clab.api.domain.activity.activitygroup.dto.response.ActivityGroupResponseDto;
 import page.clab.api.domain.activity.activitygroup.dto.response.ActivityGroupStatusResponseDto;
@@ -71,21 +72,15 @@ public Object getActivityGroup(Long activityGroupId) {
                 .map(groupMember -> GroupMemberResponseDto.toDto(externalRetrieveMemberUseCase.findByIdOrThrow(groupMember.getMemberId()), groupMember))
                 .toList();
 
-        List<ActivityGroupBoardResponseDto> activityGroupResponseDtos =
+        List<ActivityGroupBoardResponseDto> activityGroupBoardResponseDtos =
                 details.getActivityGroupBoards().stream()
                         .map(board -> {
                             MemberBasicInfoDto memberBasicInfoDto = externalRetrieveMemberUseCase.getCurrentMemberBasicInfo();
                             return ActivityGroupBoardResponseDto.toDto(board, memberBasicInfoDto);
                         })
                         .toList();
 
-        if (details.getActivityGroup().isStudy()) {
-            return ActivityGroupStudyResponseDto.create(details.getActivityGroup(), details.getGroupMembers(), activityGroupResponseDtos, groupMemberResponseDtos, isOwner);
-        } else if (details.getActivityGroup().isProject()) {
-            return ActivityGroupProjectResponseDto.create(details.getActivityGroup(), details.getGroupMembers(), activityGroupResponseDtos, groupMemberResponseDtos, isOwner);
-        } else {
-            throw new InvalidCategoryException("해당 카테고리가 존재하지 않습니다.");
-        }
+        return ActivityGroupDetailResponseDto.create(details.getActivityGroup(), activityGroupBoardResponseDtos, groupMemberResponseDtos, isOwner);
     }
 
     @Transactional(readOnly = true)

src/main/java/page/clab/api/domain/activity/activitygroup/dto/response/ActivityGroupDetailResponseDto.java

@@ -0,0 +1,60 @@
+package page.clab.api.domain.activity.activitygroup.dto.response;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.util.List;
+import lombok.Builder;
+import lombok.Getter;
+import page.clab.api.domain.activity.activitygroup.domain.ActivityGroup;
+import page.clab.api.domain.activity.activitygroup.domain.ActivityGroupCategory;
+import page.clab.api.domain.activity.activitygroup.domain.ActivityGroupStatus;
+import page.clab.api.domain.activity.activitygroup.domain.GroupMember;
+
+@Getter
+@Builder
+public class ActivityGroupDetailResponseDto {
+
+    private Long id;
+    private ActivityGroupCategory category;
+    private String subject;
+    private String name;
+    private String content;
+    private ActivityGroupStatus status;
+    private Long progress;
+    private String imageUrl;
+    private String curriculum;
+    private List<GroupMemberResponseDto> groupMembers;
+    private LocalDate startDate;
+    private LocalDate endDate;
+    private String techStack;
+    private String githubUrl;
+    private List<ActivityGroupBoardResponseDto> activityGroupBoards;
+
+    @JsonProperty("isOwner")
+    private boolean isOwner;
+    private LocalDateTime createdAt;
+
+    public static ActivityGroupDetailResponseDto create(ActivityGroup activityGroup,
+                                                         List<ActivityGroupBoardResponseDto> boards, List<GroupMemberResponseDto> groupMemberResponseDtos, boolean isOwner) {
+        return ActivityGroupDetailResponseDto.builder()
+                .id(activityGroup.getId())
+                .category(activityGroup.getCategory())
+                .subject(activityGroup.getSubject())
+                .name(activityGroup.getName())
+                .content(activityGroup.getContent())
+                .status(activityGroup.getStatus())
+                .progress(activityGroup.getProgress())
+                .imageUrl(activityGroup.getImageUrl())
+                .curriculum(activityGroup.getCurriculum())
+                .groupMembers(groupMemberResponseDtos)
+                .startDate(activityGroup.getStartDate())
+                .endDate(activityGroup.getEndDate())
+                .techStack(activityGroup.getTechStack())
+                .githubUrl(activityGroup.getGithubUrl())
+                .activityGroupBoards(boards)
+                .isOwner(isOwner)
+                .createdAt(activityGroup.getCreatedAt())
+                .build();
+    }
+}