package com.nuvole.util;

import cn.hutool.crypto.SecureUtil;
import cn.hutool.http.HttpUtil;
import lombok.extern.slf4j.Slf4j;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;

/**
 * 腾讯地图工具类
 *
 * @Author: lc
 * @Date: 2019/6/28 14:57
 */
@Slf4j
public class TencentMapUtil {

    //腾讯地图秘钥
    public static String k = "5DUBZ-M5AKR-MZQWH-WPFLA-N4MNT-KBF44";

    //腾讯地图位置展示地址
    public static String mapUrl = "https://apis.map.qq.com/tools/poimarker";

    //逆地址解析地址
    public static String locationUrl = "https://apis.map.qq.com/ws/geocoder/v1";

    //签名校验sk
    public static String SK = "jCtZhEfr0u6FR8DrBqOI3XnUlZ7NTN0";


    /**
     * 经纬度解析地址
     *
     * @param lat 纬度
     * @param lng 纬度
     * @Author: lc
     * @Date: 2019/6/28 15:13
     */
    public static String getLocation(String lat, String lng) {
        //组装数据
        Map<String, Object> r = new HashMap<>();
        String url = "/ws/geocoder/v1?";
        r.put("location", lat + "," + lng);
        r.put("key", k);
        String sign = SecureUtil.md5(url + coverMap2String(r) + SK);
        r.put("sig", sign);
        String result = HttpUtil.get(locationUrl, r);

        return result;
    }

    /**
     * 由文字地址到经纬度的转换能力，并同时提供结构化的省市区地址信息。
     * @param address
     * @return
     */
    public static String geocoder(String address) {
        //组装数据
        Map<String, Object> r = new HashMap<>();
        String url = "/ws/geocoder/v1?";
        r.put("address", address);
        r.put("key", k);
        String sign = SecureUtil.md5(url + coverMap2String(r) + SK);
        r.put("sig", sign);
        String result = HttpUtil.get(locationUrl, r);

        return result;
    }

    /**
     * 将参数按key进行字典升序排列key1=value1
     */
    public static String coverMap2String(Map<String, Object> data) {
        TreeMap<String, Object> tree = new TreeMap<>();
        Iterator<Map.Entry<String, Object>> it = data.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry<String, Object> en = it.next();
            tree.put(en.getKey(), en.getValue());
        }
        it = tree.entrySet().iterator();
        StringBuffer sf = new StringBuffer(512);
        while (it.hasNext()) {
            Map.Entry<String, Object> en = it.next();
            sf.append(en.getKey() + "=" + en.getValue()
                    + "&");
        }
        return sf.substring(0, sf.length() - 1);
    }


    public static void main(String[] args) {
        System.out.println("is result:" + getLocation("34.799145", "113.649445"));
    }


}