package com.lf.server.service.data;

import com.lf.server.entity.all.StaticData;
import com.lf.server.entity.data.MetaEntity;
import com.lf.server.entity.sys.AttachEntity;
import com.lf.server.helper.PathHelper;
import com.lf.server.helper.StringHelper;
import com.lf.server.helper.WebHelper;
import com.lf.server.mapper.data.MetaMapper;
import com.lf.server.service.all.UploadAttachService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.util.ArrayList;
import java.util.List;

/**
 * 元数据
 * @author WWW
 */
@Service
public class MetaService implements MetaMapper {
    @Autowired
    PathHelper pathHelper;

    @Autowired
    MetaMapper metaMapper;

    private final static Log log = LogFactory.getLog(MetaService.class);

    @Override
    public Integer selectCount(String depcode, String dircode, Integer verid, String name) {
        depcode = StringHelper.getRightLike(depcode);
        dircode = StringHelper.getRightLike(dircode);
        name = StringHelper.getLikeStr(name);

        return metaMapper.selectCount(depcode, dircode, verid, name);
    }

    @Override
    public List<MetaEntity> selectByPage(String depcode, String dircode, Integer verid, String name, Integer limit, Integer offset) {
        depcode = StringHelper.getRightLike(depcode);
        dircode = StringHelper.getRightLike(dircode);
        name = StringHelper.getLikeStr(name);

        return metaMapper.selectByPage(depcode, dircode, verid, name, limit, offset);
    }

    @Override
    public Integer selectMetasForCount(String depcode, String dirs, String name) {
        depcode = StringHelper.getRightLike(depcode);
        name = StringHelper.getLikeStr(name);

        return metaMapper.selectMetasForCount(depcode, dirs, name);
    }

    @Override
    public List<MetaEntity> selectMetasForPage(String depcode, String dirs, String name, Integer limit, Integer offset) {
        depcode = StringHelper.getRightLike(depcode);
        name = StringHelper.getLikeStr(name);

        return metaMapper.selectMetasForPage(depcode, dirs, name, limit, offset);
    }

    @Override
    public Integer selectCountForUpload(String name, Integer createUser, String types) {
        name = StringHelper.getLikeStr(name);

        return metaMapper.selectCountForUpload(name, createUser, types);
    }

    @Override
    public List<MetaEntity> selectByPageForUpload(String name, Integer createUser, String types, Integer limit, Integer offset) {
        name = StringHelper.getLikeStr(name);

        return metaMapper.selectByPageForUpload(name, createUser, types, limit, offset);
    }

    @Override
    public Integer selectCountByPid(Integer metaid, String name) {
        name = StringHelper.getLikeStr(name);

        return metaMapper.selectCountByPid(metaid, name);
    }

    @Override
    public List<MetaEntity> selectPageByPid(Integer metaid, String name, Integer limit, Integer offset) {
        name = StringHelper.getLikeStr(name);

        return metaMapper.selectPageByPid(metaid, name, limit, offset);
    }

    @Override
    public MetaEntity selectById(int id) {
        return metaMapper.selectById(id);
    }

    @Override
    public MetaEntity selectByGuid(String guid, String tab) {
        return metaMapper.selectByGuid(guid, tab);
    }

    @Override
    public List<MetaEntity> selectByIdsForTab(String ids) {
        return metaMapper.selectByIdsForTab(ids);
    }

    @Override
    public List<MetaEntity> selectMetaFiles(List<Integer> ids) {
        return metaMapper.selectMetaFiles(ids);
    }

    @Override
    public List<MetaEntity> selectXlsAnnex(Integer[] ids, String tabs) {
        return metaMapper.selectXlsAnnex(ids, tabs);
    }

    @Override
    public Integer insert(MetaEntity entity) {
        return metaMapper.insert(entity);
    }

    @Override
    public Integer inserts(List<MetaEntity> list) {
        return metaMapper.inserts(list);
    }

    @Override
    public Integer deletes(String sql, String ids) {
        return metaMapper.deletes(sql, ids);
    }

    @Override
    public Integer update(MetaEntity entity) {
        return metaMapper.update(entity);
    }

    @Override
    public Integer updates(List<MetaEntity> list) {
        return metaMapper.updates(list);
    }

    /**
     * 删除元数据
     */
    public Integer deletes(List<Integer> list) {
        String ids = StringHelper.join(list, ",");

        String sql = null;
        List<MetaEntity> metas = selectByIdsForTab(ids);
        if (null != metas && metas.size() > 0) {
            sql = getDelTabsSql(metas);
        }

        return deletes(sql, ids);
    }

    /**
     * 获取删除表记录SQL
     */
    public String getDelTabsSql(List<MetaEntity> metas) {
        List<String> list = new ArrayList<>();
        String tab = metas.get(0).getTab();

        List<String> pids = new ArrayList<>();
        for (MetaEntity me : metas) {
            if (tab.equals(me.getTab())) {
                pids.add("'" + me.getEventid() + "'");
            } else {
                list.add(String.format("delete from %s where parentid in (%s)", tab, StringHelper.join(pids, ",")));

                pids.clear();
                tab = me.getTab();
                pids.add("'" + me.getEventid() + "'");
            }
        }

        if (pids.size() > 0) {
            list.add(String.format("delete from %s where parentid in (%s)", tab, StringHelper.join(pids, ",")));
        }

        return StringHelper.join(list, ";");
    }

    /**
     * 查看文件
     */
    public void downloadForView(String guid, boolean inline, HttpServletResponse res) {
        try {
            if (StringHelper.isEmpty(guid)) {
                WebHelper.writeStr2Page(res, StaticData.NO_FILE);
                return;
            }

            MetaEntity me = selectByGuid(guid, null);
            if (me == null) {
                WebHelper.writeStr2Page(res, StaticData.NO_FILE);
                return;
            }

            String filePath = pathHelper.getConfig().getUploadPath() + File.separator + me.getPath();
            File file = new File(filePath);
            if (!file.exists() || file.isDirectory()) {
                WebHelper.writeJson2Page(res, "文件不存在");
            }

            WebHelper.download(filePath, me.getName(), inline, res);
        } catch (Exception ex) {
            WebHelper.writeJson2Page(res, "文件下载出错");
            log.error(ex.getMessage(), ex);
        }
    }
}