package cn.com.lzt.car.api;

import cn.com.lzt.common.util.Constants;
import cn.com.lzt.common.util.HttpUtil;
import cn.com.lzt.message.send.util.MD5;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;
import org.gavaghan.geodesy.Ellipsoid;
import org.gavaghan.geodesy.GeodeticCalculator;
import org.gavaghan.geodesy.GeodeticCurve;
import org.gavaghan.geodesy.GlobalCoordinates;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

public class CarOnlineUtils {

    private static final Logger logger = Logger.getLogger(CarOnlineUtils.class);

    private static String accessTokenCzsh = null;
    private static String accessToken = null;

    private static long tokenTime = 0;
    private static long tokenTimeCzsh = 0;

    public static String getAccessToken() {
        //time 以秒为单位
        long time = System.currentTimeMillis() / 1000;
        //token不存在，或者过期，则重新生成token
        //token有效期为7200s，为安全起见，超过7000s则重新申请
        if (StringUtils.isEmpty(accessToken) || time - tokenTime > 7000) {
            List<Object> list = genAccessToken(
                    Constants.getProperty("CAR_FLEET_ACCOUNT"), Constants.getProperty("CAR_FLEET_SECRET"));
            if(list != null){
                accessToken = (String)list.get(0);
                tokenTime = (long)list.get(1);
            }
        }
        return accessToken;
    }

//    public static String getAccessTokenCzsh() {
//        //time 以秒为单位
//        long time = System.currentTimeMillis() / 1000;
//        //token不存在，或者过期，则重新生成token
//        //token有效期为7200s，为安全起见，超过7000s则重新申请
//        if (StringUtils.isEmpty(accessTokenCzsh) || time - tokenTimeCzsh > 7000) {
//            List<Object> list = genAccessToken("城智生活", "dsgongyong2019");
//            if(list != null){
//                accessTokenCzsh = (String)list.get(0);
//                tokenTimeCzsh = (long)list.get(1);
//            }
//        }
//        return accessTokenCzsh;
//    }

    private static List<Object> genAccessToken(String account, String secret) {
        //time 以秒为单位
        long time = System.currentTimeMillis() / 1000;
//		String signature = MD5.md5(MD5.md5("dsgongyong2019") + time);
        String signature = MD5.md5(MD5.md5(secret) + time);
        String url = null;
        try {
//			url = "http://api.gpsoo.net/1/auth/access_token?account="+java.net.URLEncoder.encode("城智生活", "UTF8")+"&time=" + time + "&signature=" + signature;
            url = "http://api.gpsoo.net/1/auth/access_token?account="
                    + java.net.URLEncoder.encode(account, "UTF8") + "&time=" + time + "&signature=" + signature;
        } catch (UnsupportedEncodingException e) {
            logger.error(e.getMessage());
            return null;
        }
        JSONObject res = HttpUtil.httpRequest(url, "GET", null);
        logger.error(res.toJSONString());
        if (res.get("ret").toString().equals("0")) {
            String accessToken = res.get("access_token").toString();
            long tokenTime = time;
            List<Object> list = new ArrayList();
            list.add(accessToken);
            list.add(tokenTime);
            return list;
        } else {
            logger.error("未获取到汽车在线access_token" + "，url:" + url);
        }
        return null;
    }

    public static double getDistanceMeter(GlobalCoordinates gpsFrom, GlobalCoordinates gpsTo, Ellipsoid ellipsoid) {
        //创建GeodeticCalculator，调用计算方法，传入坐标系、经纬度用于计算距离
        GeodeticCurve geoCurve = new GeodeticCalculator().calculateGeodeticCurve(ellipsoid, gpsFrom, gpsTo);
        return geoCurve.getEllipsoidalDistance();
    }

}