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LimdaeIlLimdaeIl
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[FEAT] 모임 생성 기능 구현
[FEAT] 모임 생성 기능 구현
2 parents 3b6baef + 51e5fc5 commit 583ee60

25 files changed

+800
-24
lines changed

‎src/main/java/team/wego/wegobackend/group/application/dto/request/CreateGroupRequest.java‎

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package team.wego.wegobackend.group.application.dto.request;
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import jakarta.validation.constraints.Future;
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import jakarta.validation.constraints.FutureOrPresent;
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import jakarta.validation.constraints.Max;
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import jakarta.validation.constraints.Min;
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import jakarta.validation.constraints.NotBlank;
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import jakarta.validation.constraints.NotNull;
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import java.time.LocalDateTime;
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import java.util.List;
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public record CreateGroupRequest(
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@NotBlank(message = "모임: 제목은 필수 입니다.")
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String title,
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@NotBlank(message = "모임: 모임 위치는 필수 입니다.")
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String location,
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String locationDetail,
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@NotNull(message = "모임: 시작 시간은 필수 입니다.")
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@FutureOrPresent(message = "모임: 시작 시간은 현재 이후여야 합니다.")
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LocalDateTime startTime,
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@NotNull(message = "모임: 종료 시간은 필수 입니다.")
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@Future(message = "모임: 종료 시간은 현재 이후여야 합니다.")
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LocalDateTime endTime,
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List<String> tags,
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@NotBlank(message = "모임: 설명은 필수 입니다.")
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String description,
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@NotNull(message = "모임: 최대 인원은 필수 입니다.")
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@Min(value = 2, message = "모임: 최대 인원은 최소 2명 이상이어야 합니다.")
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@Max(value = 12, message = "모임: 최대 인원은 최대 12명 이하이어야 합니다.")
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Integer maxParticipants
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) {
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}

‎src/main/java/team/wego/wegobackend/group/application/dto/response/CreateGroupImageResponse.java‎

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package team.wego.wegobackend.group.application.dto.response;
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import java.util.List;
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public record CreateGroupImageResponse(
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Long groupId,
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List<GroupImageItemResponse> images
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) {
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}
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‎src/main/java/team/wego/wegobackend/group/application/dto/response/CreateGroupResponse.java‎

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package team.wego.wegobackend.group.application.dto.response;
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import java.time.LocalDateTime;
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import java.util.List;
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import lombok.AccessLevel;
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import lombok.Builder;
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import team.wego.wegobackend.group.domain.entity.Group;
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import team.wego.wegobackend.group.domain.entity.GroupTag;
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import team.wego.wegobackend.group.domain.entity.GroupUserStatus;
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import team.wego.wegobackend.tag.domain.entity.Tag;
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import team.wego.wegobackend.user.domain.User;
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@Builder(access = AccessLevel.PRIVATE)
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public record CreateGroupResponse(
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Long id,
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String title,
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String location,
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String locationDetail,
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LocalDateTime startTime,
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LocalDateTime endTime,
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List<String> tags,
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String description,
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long participantCount,
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int maxParticipants,
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CreatedBy createdBy,
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LocalDateTime createdAt,
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LocalDateTime updatedAt,
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int joinedCount
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) {
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public static CreateGroupResponse from(Group group) {
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// 태그 이름 리스트
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List<String> tagNames = group.getGroupTags().stream()
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.map(GroupTag::getTag)
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.map(Tag::getName)
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.toList();
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// 현재 참여 인원
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long attendUserCount = group.getUsers().stream()
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.filter(groupUser -> GroupUserStatus.ATTEND.equals(groupUser.getStatus()))
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.count();
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// 모임 생성자 정보
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User host = group.getHost();
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CreatedBy createdByHost = new CreatedBy(
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host.getId(),
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host.getNickName(),
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host.getProfileImage());
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return CreateGroupResponse.builder()
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.id(group.getId())
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.title(group.getTitle())
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.location(group.getLocation())
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.locationDetail(group.getLocationDetail())
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.startTime(group.getStartTime())
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.endTime(group.getEndTime())
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.tags(tagNames)
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.description(group.getDescription())
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.participantCount(attendUserCount)
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.maxParticipants(group.getMaxParticipants())
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.createdBy(createdByHost)
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.createdAt(group.getCreatedAt())
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.updatedAt(group.getUpdatedAt())
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.joinedCount(1) // TODO: 다시 한 번 체크
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.build();
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}
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public record CreatedBy(
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Long userId,
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String nickName,
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String profileImage
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) {
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}
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}

‎src/main/java/team/wego/wegobackend/group/application/dto/response/GroupImageItemResponse.java‎

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package team.wego.wegobackend.group.application.dto.response;
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import team.wego.wegobackend.group.domain.entity.GroupImage;
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public record GroupImageItemResponse(
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Long id,
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int sortOrder,
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String imageUrl440x240,
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String imageUrl100x100
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) {
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public static GroupImageItemResponse from(
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GroupImage entity,
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String imageUrl440x240,
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String imageUrl100x100
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) {
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return new GroupImageItemResponse(
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entity.getId(),
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entity.getSortOrder(),
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imageUrl440x240,
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imageUrl100x100
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);
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}
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}
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‎src/main/java/team/wego/wegobackend/group/application/service/GroupImageService.java‎

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package team.wego.wegobackend.group.application.service;
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import java.util.ArrayList;
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import java.util.List;
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import lombok.RequiredArgsConstructor;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import org.springframework.web.multipart.MultipartFile;
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import team.wego.wegobackend.group.application.dto.response.CreateGroupImageResponse;
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import team.wego.wegobackend.group.application.dto.response.GroupImageItemResponse;
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import team.wego.wegobackend.group.domain.entity.Group;
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import team.wego.wegobackend.group.domain.entity.GroupImage;
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import team.wego.wegobackend.group.domain.exception.GroupErrorCode;
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import team.wego.wegobackend.group.domain.exception.GroupException;
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import team.wego.wegobackend.group.domain.repository.GroupImageRepository;
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import team.wego.wegobackend.group.domain.repository.GroupRepository;
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import team.wego.wegobackend.image.application.service.ImageUploadService;
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import team.wego.wegobackend.image.domain.ImageFile;
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import team.wego.wegobackend.user.domain.User;
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import team.wego.wegobackend.user.repository.UserRepository;
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@RequiredArgsConstructor
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@Service
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public class GroupImageService {
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// 인덱스 0 → 440x240, 인덱스 1 → 100x100
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private static final List<Integer> GROUP_WIDTHS = List.of(440, 100);
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private static final List<Integer> GROUP_HEIGHTS = List.of(240, 100);
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private final GroupImageRepository groupImageRepository;
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private final UserRepository userRepository;
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private final GroupRepository groupRepository;
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private final ImageUploadService imageUploadService;
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private void validateCreateGroupImageRequest(List<MultipartFile> images) {
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if (images == null || images.isEmpty()) {
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return; // TODO: 이미지가 필수가 아니라면 null/빈 리스트는 그대로 허용 -> 정책 확인 필요
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}
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if (images.size() > 3) {
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throw new GroupException(GroupErrorCode.IMAGE_UPLOAD_EXCEED, images.size());
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}
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}
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/**
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* 모임 이미지 저장: S3 업로드 + GroupImage 저장 + 응답 DTO 생성
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*/
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private List<GroupImageItemResponse> saveGroupImages(Group group, List<MultipartFile> images) {
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if (images == null || images.isEmpty()) {
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return List.of();
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}
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List<GroupImage> entities = new ArrayList<>();
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List<ImageFile> mainFiles = new ArrayList<>(); // 440x240
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List<ImageFile> thumbFiles = new ArrayList<>(); // 100x100
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List<String> uploadedKeys = new ArrayList<>();
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String dir = "groups/" + group.getId();
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try {
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for (int i = 0; i < images.size(); i++) {
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MultipartFile file = images.get(i);
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if (file == null || file.isEmpty()) {
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continue;
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}
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// 한 장당 2개(440x240, 100x100) 업로드
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List<ImageFile> variants = imageUploadService.uploadAsWebpWithSizes(
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dir,
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file,
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i,
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GROUP_WIDTHS,
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GROUP_HEIGHTS
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);
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ImageFile main = variants.get(0); // 440x240
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ImageFile thumb = variants.get(1); // 100x100
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// DB에는 대표(440x240) 기준 URL만 저장
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GroupImage image = GroupImage.create(group, main.url(), i);
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entities.add(image);
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mainFiles.add(main);
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thumbFiles.add(thumb);
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// 보상 트랜잭션용
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uploadedKeys.add(main.key());
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uploadedKeys.add(thumb.key());
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}
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if (!entities.isEmpty()) {
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groupImageRepository.saveAll(entities); // 여기서 IDENTITY ID 세팅
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}
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// 엔티티 + 두 사이즈 URL을 묶어서 응답 DTO로 변환
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List<GroupImageItemResponse> responses = new ArrayList<>();
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for (int i = 0; i < entities.size(); i++) {
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GroupImage entity = entities.get(i);
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ImageFile main = mainFiles.get(i);
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ImageFile thumb = thumbFiles.get(i);
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responses.add(
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GroupImageItemResponse.from(
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entity,
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main.url(), // 440x240
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thumb.url() // 100x100
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)
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);
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}
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return responses;
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} catch (RuntimeException e) {
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imageUploadService.deleteAll(uploadedKeys);
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throw new GroupException(GroupErrorCode.IMAGE_UPLOAD_FAILED, e);
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}
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}
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@Transactional
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public CreateGroupImageResponse createGroupImage(
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Long userId,
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Long groupId,
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List<MultipartFile> images
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) {
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// 1. 회원 조회(HOST)
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User host = userRepository.findById(userId)
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.orElseThrow(() -> new GroupException(GroupErrorCode.HOST_USER_NOT_FOUND, userId));
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// 2. 모임 조회
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Group group = groupRepository.findById(groupId)
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.orElseThrow(
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() -> new GroupException(GroupErrorCode.GROUP_NOT_FOUND_BY_ID, groupId));
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// 3. 업로드하는 사람이 host인지 검증
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if (!group.getHost().getId().equals(host.getId())) {
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throw new GroupException(GroupErrorCode.HOST_USER_NOT_FOUND, userId);
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}
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// 4. 비즈니스 유효성 검사
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validateCreateGroupImageRequest(images);
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// 5. 업로드 + DB 저장 + 응답 DTO 생성
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List<GroupImageItemResponse> imageItems = saveGroupImages(group, images);
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return new CreateGroupImageResponse(
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group.getId(),
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imageItems
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);
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}
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}
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