package com.doc.biz.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.doc.biz.domain.DocFavorite;
import com.doc.biz.domain.DocInfo;
import com.doc.biz.domain.DocumentFile;
import com.doc.biz.domain.EsDocInfo;
import com.doc.biz.mapper.DocInfoMapper;
import com.doc.biz.service.*;
import com.doc.biz.vo.DocumentVO;
import com.doc.common.constant.Constants;
import com.doc.common.utils.DateUtils;
import com.doc.common.utils.SecurityUtils;
import com.doc.common.utils.StringUtils;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;

/**
 * 文件基本信息表Service业务层处理
 *
 * @author wukai
 * @date 2023-08-15
 */
@Service
public class DocInfoServiceImpl implements IDocInfoService {
    @Resource
    private DocInfoMapper docInfoMapper;
    @Resource
    private IElasticSearchService elasticSearchService;
    @Resource
    private IDocSpaceService spaceService;
    @Resource
    private IDocFavoriteService favoriteService;
    @Resource
    private IDocDirService dirService;
    @Resource
    private IMongoService mongoService;


    /**
     * 查询文件基本信息表
     *
     * @param docId 文件基本信息表主键
     * @return 文件基本信息表
     */
    @Override
    public DocInfo selectDocInfoByDocId(Long docId) {
        DocInfo info = docInfoMapper.selectDocInfoByDocId(docId);
        if (info != null) {
            String unloading = "l0400";
            //是否允许转存
            info.setUnloading(dirService.hasRole(info.getDirId(), unloading));
        }
        return info;
    }

    /**
     * 通过fileID查询文件基本信息
     *
     * @param fileId mongo文件ID
     */
    @Override
    public DocInfo selectDocInfoByFileId(String fileId) {
        return docInfoMapper.selectDocInfoByFileId(fileId);
    }

    /**
     * only office更新文件内容
     *
     * @param info 文件信息
     */
    @Override
    public void updateDocInfoByOnlyOffice(DocInfo info) {
        info.setUpdateTime(DateUtils.getNowDate());
        docInfoMapper.updateDocInfo(info);
        if (StringUtils.isNotEmpty(info.getFileId())) {
            elasticSearchService.save(info);
        }
    }

    /**
     * 文件上传之后的操作
     *
     * @param vo      上传对象
     * @param spaceId 空间ID
     * @param dirId   目录ID
     * @return 对象
     */
    @Override
    public DocInfo upload(DocumentVO vo, Long spaceId, Long dirId) {
        DocInfo docInfo = new DocInfo();
        docInfo.setSpaceId(spaceId);
        docInfo.setDirId(dirId);
        docInfo.setFileId(vo.getFileId());
        docInfo.setFileName(vo.getFileName());
        docInfo.setFileSize(vo.getFileSize());
        docInfo.setFileType(vo.getSuffix());
        docInfo.setCreateBy(SecurityUtils.getUsername());
        insertDocInfo(docInfo);
        return docInfo;
    }


    /**
     * 查询文件基本信息表列表
     *
     * @param docInfo 文件基本信息表
     * @return 文件基本信息表
     */
    @Override
    public List<DocInfo> selectDocInfoList(DocInfo docInfo) {
        List<DocInfo> list = docInfoMapper.selectDocInfoList(docInfo);

        List<Long> favorites = new ArrayList<>();
        DocFavorite favorite = new DocFavorite();
        favorite.setOwner(SecurityUtils.getUserId());
        favorite.setIsFolder("N");

        favoriteService.selectDocFavoriteList(favorite).forEach(f -> {
            favorites.add(f.getRelaId());
        });

        list.forEach(i -> {
            if (favorites.contains(i.getDocId())) {
                i.setIsFavorite("Y");
            } else {
                i.setIsFavorite("N");
            }
        });

        return list;
    }

    /**
     * 新增文件基本信息表
     *
     * @param docInfo 文件基本信息表
     * @return 结果
     */
    @Override
    public int insertDocInfo(DocInfo docInfo) {
        docInfo.setCreateTime(DateUtils.getNowDate());

        checkDuplicateNames(docInfo);

        int i = docInfoMapper.insertDocInfo(docInfo);
        String fileType = docInfo.getFileType().toLowerCase();
        if (docInfo.getFileSize() > 0 && Constants.ES_EXTENSION.contains(fileType)) {
            //文件不为空，且可以解析的文件后缀名
            String allowSearch = "l0300";
            if (dirService.hasRole(docInfo.getDirId(), allowSearch)) {
                //只有允许全文搜索的才会存入ES库，否则不存入
                elasticSearchService.save(docInfo);
            }
        }

        //改变空间容量
        spaceService.changeUsedCap(docInfo.getSpaceId(), docInfo.getFileSize());
        return i;
    }

    /**
     * 检查重名
     *
     * @param docInfo 文件信息
     */
    private void checkDuplicateNames(DocInfo docInfo) {
        DocInfo query = new DocInfo();
        query.setDirId(docInfo.getDirId());
        query.setFileName(docInfo.getFileName());
        List<DocInfo> list = selectDocInfoList(query);
        if (list.size() > 0 && !list.get(0).getDocId().equals(docInfo.getDocId())) {
            String fileName = docInfo.getFileName();
            fileName = fileName + "-" + DateUtils.dateTimeNow();
            docInfo.setFileName(fileName);
        }

    }

    /**
     * 修改文件基本信息表
     *
     * @param docInfo 文件基本信息表
     * @return 结果
     */
    @Override
    public int updateDocInfo(DocInfo docInfo) {
        checkDuplicateNames(docInfo);
        docInfo.setUpdateTime(DateUtils.getNowDate());
        return docInfoMapper.updateDocInfo(docInfo);
    }

    /**
     * 批量删除文件基本信息表
     *
     * @param docIds 需要删除的文件基本信息表主键
     * @return 结果
     */
    @Override
    public int deleteDocInfoByDocIds(Long[] docIds) {
        int i = 1;
        for (Long docId : docIds) {
            i = i & deleteDocInfoByDocId(docId);
        }
        return 1;
    }

    /**
     * 删除文件基本信息表信息
     *
     * @param docId 文件基本信息表主键
     * @return 结果
     */
    @Override
    public int deleteDocInfoByDocId(Long docId) {
        DocInfo docInfo = selectDocInfoByDocId(docId);
        int i = docInfoMapper.deleteDocInfoByDocId(docId);
        //改变空间容量
        spaceService.changeUsedCap(docInfo.getSpaceId(), 0 - docInfo.getFileSize());
        return i;
    }

    /**
     * 查询已失效的文件
     *
     * @return 失效文件列表
     */
    @Override
    public List<DocInfo> selectLoseList() {
        List<DocInfo> list = docInfoMapper.selectDocInfoList(new DocInfo());
        List<DocInfo> result = new ArrayList<>();
        list.forEach(info -> {
            Optional<DocumentFile> optional = mongoService.findByFileId(info.getFileId());
            if (!optional.isPresent()) {
                EsDocInfo esDocInfo = elasticSearchService.getEsDocInfo(info.getDocId());
                if (esDocInfo != null) {
                    info.setRemark(esDocInfo.getContent());
                }
                result.add(info);
            }
        });
        return result;
    }

    /**
     * 根据目录ID查询文件数量
     *
     * @param dirId 目录ID
     * @return 文件数量
     */
    @Override
    public Long selectCountList(Long dirId) {
        QueryWrapper<DocInfo> wrapper = new QueryWrapper();
        wrapper.eq("dir_id", dirId);
        return docInfoMapper.selectCount(wrapper);
    }
}