PostCommentService.java

package clap.server.application.service.comment;

import clap.server.adapter.inbound.web.dto.task.PostAndEditCommentRequest;
import clap.server.adapter.outbound.infrastructure.s3.S3UploadAdapter;
import clap.server.adapter.outbound.persistense.entity.member.constant.MemberRole;
import clap.server.adapter.outbound.persistense.entity.task.constant.TaskHistoryType;
import clap.server.application.mapper.AttachmentMapper;
import clap.server.application.port.inbound.comment.PostCommentUsecase;
import clap.server.application.port.inbound.domain.MemberService;
import clap.server.application.port.inbound.domain.TaskService;
import clap.server.application.port.outbound.task.CommandAttachmentPort;
import clap.server.application.port.outbound.task.CommandCommentPort;
import clap.server.application.port.outbound.taskhistory.CommandTaskHistoryPort;
import clap.server.common.annotation.architecture.ApplicationService;
import clap.server.common.constants.FilePathConstants;
import clap.server.domain.model.member.Member;
import clap.server.domain.model.task.Attachment;
import clap.server.domain.model.task.Comment;
import clap.server.domain.model.task.Task;
import clap.server.domain.model.task.TaskHistory;
import clap.server.exception.ApplicationException;
import clap.server.exception.code.MemberErrorCode;
import lombok.RequiredArgsConstructor;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;

import java.util.List;

@ApplicationService
@RequiredArgsConstructor
public class PostCommentService implements PostCommentUsecase {

    private final MemberService memberService;
    private final TaskService taskService;
    private final CommandCommentPort commandCommentPort;
    private final S3UploadAdapter s3UploadAdapter;
    private final CommandAttachmentPort commandAttachmentPort;
    private final CommandTaskHistoryPort commandTaskHistoryPort;

    @Transactional
    @Override
    public void save(Long userId, Long taskId, PostAndEditCommentRequest request) {
        Task task = taskService.findById(taskId);
        Member member = memberService.findActiveMember(userId);

        // 일반 회원일 경우 => 요청자인지 확인
        // 담당자일 경우 => 처리자인지 확인
        if (checkCommenter(task, member)) {
            Comment comment = Comment.createComment(member, task, request.content());
            Comment savedComment = commandCommentPort.saveComment(comment);

            TaskHistory taskHistory = TaskHistory.createTaskHistory(TaskHistoryType.COMMENT, task, null, member,savedComment);
            commandTaskHistoryPort.save(taskHistory);
        }
    }

    @Transactional
    @Override
    public void saveCommentAttachment(Long userId, Long taskId, List<MultipartFile> files) {
        Task task = taskService.findById(taskId);
        Member member = memberService.findActiveMember(userId);

        if (checkCommenter(task, member)) {
            Comment comment = Comment.createComment(member, task, "Attachment");
            Comment savedComment = commandCommentPort.saveComment(comment);
            saveAttachment(files, task, savedComment);

            TaskHistory taskHistory = TaskHistory.createTaskHistory(TaskHistoryType.COMMENT_FILE, task, null, member, savedComment);
            commandTaskHistoryPort.save(taskHistory);
        }
    }

    private void saveAttachment(List<MultipartFile> files, Task task, Comment comment) {
        List<String> fileUrls = s3UploadAdapter.uploadFiles(FilePathConstants.TASK_IMAGE, files);
        List<Attachment> attachments = AttachmentMapper.toCommentAttachments(task, comment, files, fileUrls);
        commandAttachmentPort.saveAll(attachments);
    }

    public Boolean checkCommenter(Task task, Member member) {
        // 일반 회원일 경우 => 요청자인지 확인
        // 담당자일 경우 => 처리자인지 확인
        if ((member.getMemberInfo().getRole() == MemberRole.ROLE_MANAGER)
                && !(member.getMemberId() == task.getProcessor().getMemberId())) {
            throw new ApplicationException(MemberErrorCode.NOT_A_COMMENTER);
        }

        else if ((member.getMemberInfo().getRole() == MemberRole.ROLE_USER)
                && !(member.getMemberId() == task.getRequester().getMemberId())) {
            throw new ApplicationException(MemberErrorCode.NOT_A_COMMENTER);
        }
        else {
            return true;
        }

    }
}