package com.moon.server.service.show;

import com.alibaba.fastjson.JSON;
import com.moon.server.entity.all.ResponseMsg;
import com.moon.server.entity.all.StaticData;
import com.moon.server.entity.data.DownloadEntity;
import com.moon.server.entity.show.ExportEntity;
import com.moon.server.entity.sys.UserEntity;
import com.moon.server.helper.FileHelper;
import com.moon.server.helper.PathHelper;
import com.moon.server.helper.RestHelper;
import com.moon.server.helper.StringHelper;
import com.moon.server.service.data.DownloadService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.io.File;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;

/**
 * 在线制图
 * @author WWW
 */
@Service
public class ExportService {
    @Value("${sys.exportServer}")
    private String exportServer;

    @Autowired
    PathHelper pathHelper;

    @Autowired
    DownloadService downloadService;

    /**
     * POST请求出图服务
     *
     * @param ue     用户类
     * @param entity 在线制图类
     * @return 成功
     * @throws Exception
     */
    public String post(UserEntity ue, ExportEntity entity) throws Exception {
        Map<String, Object> map = getMapData(entity);
        String url = exportServer + "/Export/Start";

        String str = RestHelper.postForRest(url, map);
        if (StringHelper.isEmpty(str)) {
            return null;
        }

        ResponseMsg<String> msg = JSON.parseObject(str, ResponseMsg.class);
        if (msg == null || msg.getCode() != StaticData.TWO_HUNDRED) {
            return null;
        }

        String file = pathHelper.getConfig().getDownloadPath() + File.separator + msg.getResult();
        File f = new File(file);
        if (!f.exists() && !f.isDirectory()) {
            return null;
        }

        DownloadEntity de = getDownloadEntity(ue, entity, file);
        int rows = downloadService.insert(de);

        return rows > 0 ? de.getGuid() : null;
    }

    /**
     * 获取Map数据
     */
    private Map<String, Object> getMapData(ExportEntity entity) {
        Map<String, Object> map = new HashMap<String, Object>(3);

        Field[] fields = entity.getClass().getDeclaredFields();
        for (Field field : fields) {
            try {
                if ("serialVersionUID".equals(field.getName())) {
                    continue;
                }

                field.setAccessible(true);
                Object obj = field.get(entity);

                map.put(field.getName(), obj);
            } catch (Exception ex) {
                //
            }
        }

        return map;
    }

    /**
     * 获取下载实体类
     */
    private DownloadEntity getDownloadEntity(UserEntity ue, ExportEntity entity, String file) throws Exception {
        DownloadEntity de = new DownloadEntity();
        de.setName(FileHelper.getFileName(file));
        // 1-Shp文件，2-专题图，3-元数据，4-业务数据，5-管道分析，6-统计报告，7-附件文件，8-瓦片文件
        de.setType(2);
        de.setSizes(FileHelper.sizeToMb(new File(file).length()));
        de.setDepid(ue.getDepid());
        de.setDcount(0);
        // de.setPwd(null)
        de.setUrl(FileHelper.getRelativePath(file));
        // de.setDescr("专题图文件")
        de.setDescr(StringHelper.isEmpty(entity.getTitle()) ? "专题图文件" : entity.getTitle().trim());
        de.setGuid(FileHelper.getFileMd5(file));
        de.setCreateUser(ue.getId());
        // de.setGeom(null)

        return de;
    }
}