package com.lf.server.service.data;

import com.lf.server.entity.all.StaticData;
import com.lf.server.entity.data.CoordEntity;
import com.lf.server.entity.data.DirEntity;
import com.lf.server.entity.data.FmeLogEntity;
import com.lf.server.entity.data.MetaFileEntity;
import com.lf.server.entity.sys.UserEntity;
import com.lf.server.helper.StringHelper;
import com.lf.server.mapper.data.UploadMapper;
import com.lf.server.service.all.BaseUploadService;
import org.apache.commons.collections4.queue.PredicatedQueue;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

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

/**
 * 数据上传服务类
 * @author WWW
 */
@Service
public class UploadService extends BaseUploadService implements UploadMapper {
    @Autowired
    UploadMapper uploadMapper;

    @Autowired
    FmeService fmeService;

    @Override
    public List<CoordEntity> selectCoords(String zoning) {
        return uploadMapper.selectCoords(zoning);
    }

    @Override
    public Integer selectCount4Coord(String epsgCode) {
        return uploadMapper.selectCount4Coord(epsgCode);
    }

    @Override
    public List<DirEntity> selectProject() {
        return uploadMapper.selectProject();
    }

    @Override
    public List<FmeLogEntity> selectFmeLog(String parentid) {
        return uploadMapper.selectFmeLog(parentid);
    }

    /**
     * 插入文件
     */
    public void insertFiles(UserEntity ue, List<MetaFileEntity> list, HttpServletRequest req) {
        checkMetaFiles(ue, list);
        loadExcel(list, req);
    }

    /**
     * 检查元数据文件
     */
    private void checkMetaFiles(UserEntity ue, List<MetaFileEntity> list) {
        String tempPath = pathHelper.getConfig().getTempPath();

        for (MetaFileEntity mf : list) {
            mf.setCreateUser(ue.getId());
            mf.setDepid(ue.getDepid());

            File f = new File(tempPath + File.separator + mf.getPath());
            if (!f.exists()) {
                mf.setRows(-1);
                mf.setMsg("文件不存在");
            }
        }
    }

    /**
     * Excel入库
     */
    private void loadExcel(List<MetaFileEntity> list, HttpServletRequest req) {
        List<MetaFileEntity> xlsList = getExcelFiles(list);
        if (xlsList.isEmpty()) {
            return;
        }

        MetaFileEntity meta = getExcelMeta(xlsList);
        String guid = fmeService.excelLoader(meta, req);
    }

    /**
     * 获取Excel元数据文件
     */
    private List<MetaFileEntity> getExcelFiles(List<MetaFileEntity> list) {
        List<MetaFileEntity> xlsList = new ArrayList<>();
        for (MetaFileEntity mf : list) {
            boolean isXls = StaticData.XLS.equals(mf.getExtName()) || StaticData.XLSX.equals(mf.getExtName());
            if (mf.getRows() > -1 && isXls) {
                xlsList.add(mf);
            }
        }

        return xlsList;
    }

    /**
     * 获取Excel的元数据
     */
    private MetaFileEntity getExcelMeta(List<MetaFileEntity> xlsList) {
        List<String> pathList = new ArrayList<>();
        List<String> dirList = new ArrayList<>();
        List<String> pidList = new ArrayList<>();

        String tempPath = pathHelper.getConfig().getTempPath();
        for (MetaFileEntity mf : xlsList) {
            pathList.add(tempPath + File.separator + mf.getPath());
            dirList.add(mf.getDirid() + "");
            pidList.add(mf.getEventid());
        }

        MetaFileEntity meta = new MetaFileEntity();
        meta.setPath(StringHelper.join(pathList, ","));
        meta.setEpsgCode(xlsList.get(0).getEpsgCode());
        meta.setName(StringHelper.join(dirList, ","));
        meta.setDepid(xlsList.get(0).getDepid());
        meta.setVerid(xlsList.get(0).getVerid());
        meta.setCreateUser(xlsList.get(0).getCreateUser());
        meta.setEventid(StringHelper.join(pidList, ","));

        return meta;
    }
}