package com.ruoyi.business.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.ruoyi.basic.entity.StorageAttachment;
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import com.ruoyi.basic.entity.StorageBlob;
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import com.ruoyi.basic.entity.dto.StorageBlobDTO;
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import com.ruoyi.basic.mapper.StorageAttachmentMapper;
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import com.ruoyi.basic.mapper.StorageBlobMapper;
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import com.ruoyi.basic.service.StorageAttachmentService;
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import com.ruoyi.business.dto.ArchiveDto;
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import com.ruoyi.business.entity.Archive;
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import com.ruoyi.business.mapper.ArchiveMapper;
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import com.ruoyi.business.service.ArchiveService;
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import com.ruoyi.common.utils.bean.BeanUtils;
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import com.ruoyi.common.utils.file.MinioUtils;
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import lombok.RequiredArgsConstructor;
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import org.springframework.stereotype.Service;
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import java.util.*;
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import java.util.function.Function;
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import java.util.stream.Collectors;
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import static com.ruoyi.common.constant.StorageAttachmentConstants.StorageAttachmentFile;
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import static com.ruoyi.common.enums.StorageAttachmentRecordType.Archives;
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/**
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* <p>
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* 档案信息表，记录系统中各类档案的基本信息 服务实现类
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* </p>
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*
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* @author ruoyi
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* @since 2025-06-10
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*/
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@Service
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@RequiredArgsConstructor
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public class ArchiveServiceImpl extends ServiceImpl<ArchiveMapper, Archive> implements ArchiveService {
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private final ArchiveMapper archiveMapper;
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private final StorageAttachmentService storageAttachmentService;
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private final StorageBlobMapper storageBlobMapper;
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private final StorageAttachmentMapper storageAttachmentMapper;
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private final MinioUtils minioUtils;
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@Override
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public IPage<ArchiveDto> selectArchiveList(Page page, ArchiveDto archiveDto) {
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// 1. 分页查询主数据
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LambdaQueryWrapper<Archive> queryWrapper = new LambdaQueryWrapper<>();
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queryWrapper.orderByDesc(Archive::getCreateTime);
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IPage<Archive> archivePage = archiveMapper.selectPage(page, queryWrapper);
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// 2. 无数据提前返回
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if (CollectionUtils.isEmpty(archivePage.getRecords())) {
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return new Page<>(archivePage.getCurrent(), archivePage.getSize(), archivePage.getTotal());
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}
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// 3. 批量获取所有档案ID
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List<Long> archiveIds = archivePage.getRecords()
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.stream()
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.map(Archive::getId)
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.collect(Collectors.toList());
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// 4. 批量查询附件映射关系（避免N+1）
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List<StorageAttachment> storageAttachments = storageAttachmentMapper
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.selectList(new LambdaQueryWrapper<StorageAttachment>()
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.in(StorageAttachment::getRecordId, archiveIds)
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.eq(StorageAttachment::getRecordType, Archives.ordinal())
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);
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Map<Long, List<StorageAttachment>> attachmentsMap = storageAttachmentMapper
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.selectList(new LambdaQueryWrapper<StorageAttachment>()
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.in(StorageAttachment::getRecordId, archiveIds)
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.eq(StorageAttachment::getRecordType, Archives.ordinal())
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).stream()
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.collect(Collectors.groupingBy(StorageAttachment::getRecordId));
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// 5. 批量查询所有需要的文件数据
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Set<Long> blobIds = attachmentsMap.values()
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.stream()
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.flatMap(List::stream)
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.map(StorageAttachment::getStorageBlobId)
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.collect(Collectors.toSet());
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Map<Long, StorageBlob> blobMap = blobIds.isEmpty()
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? Collections.emptyMap()
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: storageBlobMapper.selectList(new LambdaQueryWrapper<StorageBlob>().in(StorageBlob::getId, blobIds))
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.stream()
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.collect(Collectors.toMap(StorageBlob::getId, Function.identity()));
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// 6. 组装DTO（单次循环完成数据装配）
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List<ArchiveDto> dtoList = archivePage.getRecords().stream().map(archive -> {
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ArchiveDto dto = new ArchiveDto();
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BeanUtils.copyProperties(archive, dto); // 复制主对象属性
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// 按需添加附件信息
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List<StorageBlobDTO> blobDTOs = Optional.ofNullable(attachmentsMap.get(archive.getId()))
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.orElse(Collections.emptyList())
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.stream()
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.map(att -> blobMap.get(att.getStorageBlobId()))
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.filter(Objects::nonNull)
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.map(blob -> {
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StorageBlobDTO blobDTO = new StorageBlobDTO();
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BeanUtils.copyProperties(blob, blobDTO);
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// 动态生成预览地址和下载地址
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// 设置预览URL
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blobDTO.setUrl(minioUtils.getPreviewUrls(
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blob.getBucketFilename(),
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blob.getBucketName(),
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true
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));
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// 设置下载URL
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blobDTO.setDownloadUrl(minioUtils.getDownloadUrls(
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blob.getBucketFilename(),
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blob.getBucketName(),
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blob.getOriginalFilename(), // 原始文件名
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true
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));
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return blobDTO;
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})
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.collect(Collectors.toList());
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dto.setStorageBlobDTO(blobDTOs);
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return dto;
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}).collect(Collectors.toList());
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// 7. 构建返回分页对象
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IPage<ArchiveDto> resultPage = new Page<>();
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resultPage.setRecords(dtoList);
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return resultPage;
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}
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@Override
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public int addOrEditArchive(ArchiveDto archiveDto) {
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Archive archive = new Archive();
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BeanUtils.copyProperties(archiveDto, archive);
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int i;
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if (Objects.isNull(archiveDto.getId())) {
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i = archiveMapper.insert(archive);
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} else {
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i = archiveMapper.updateById(archive);
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}
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if (archiveDto.getStorageBlobDTO() != null && !archiveDto.getStorageBlobDTO().isEmpty()) {
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List<StorageAttachment> attachments = new ArrayList<>();
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for (StorageBlobDTO storageBlobDTO : archiveDto.getStorageBlobDTO()) {
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StorageAttachment storageAttachment = new StorageAttachment(
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StorageAttachmentFile,
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(long) Archives.ordinal(),
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archive.getId()
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);
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storageAttachment.setStorageBlobDTO(storageBlobDTO);
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attachments.add(storageAttachment);
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}
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storageAttachmentService.saveStorageAttachment(attachments, archive.getId(), Archives, StorageAttachmentFile);
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}
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return i;
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}
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@Override
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public int delByIds(Long[] ids) {
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// 检查参数
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if (ids == null || ids.length == 0) {
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return 0;
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}
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// 构造更新条件
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UpdateWrapper<Archive> updateWrapper = new UpdateWrapper<>();
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updateWrapper.in("id", ids)
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.set("deleted", 1); // 设置 deleted 为 1 表示已删除
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// 执行批量逻辑删除
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return archiveMapper.update(null, updateWrapper);
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}
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@Override
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public List<StorageAttachment> fileList(ArchiveDto archiveDto) {
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List<StorageAttachment> storageAttachments = storageAttachmentService.selectStorageAttachments(archiveDto.getId(), Archives, StorageAttachmentFile);
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return storageAttachments;
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}
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}
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