package com.securityControl.task.service.impl;

import com.alibaba.fastjson2.JSON;
import com.securityControl.task.mapper.WatherDao;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.util.*;
import java.util.stream.Collectors;

/**
 * 天气预警抓取
 */
@Service
public class WatherWarnService {

    private static final Logger log = LoggerFactory.getLogger(WatherWarnService.class);
    /**
     * 搜索城市
     */
    static String CITY = "合肥市@阜阳市@安庆市@滁州市@六安市@宿州市@宣城市@芜湖市@池州市@淮南市@黄山市@蚌埠市@亳州市@淮北市@铜陵市@马鞍山市";

    /**
     * 所有城市灾害预警列表
     */
    final static String ALL_CITY_URL = "http://product.weather.com.cn/alarm/grepalarm_cn.php";

    /**
     * 搜索城市灾害预警数据页面
     */
    final static String VALUE_URL = "http://product.weather.com.cn/alarm/webdata/";
    /**
     * 时间戳
     */
    static long TIME_STAMP = System.currentTimeMillis();

    @Autowired
    private WatherDao dao;

    /**
     * 数据信息接口
     * @param
     */
    public void getCityWather(){
     try{
         String url = ALL_CITY_URL + "?_=" + TIME_STAMP;
         String allWarningCity = getWarnCityList(url);
         if (allWarningCity == null) {
             return;
         }
         List<List<String>> data = getCityLists(allWarningCity);
         List<String> citys=Arrays.asList(CITY.split("@"));
         for (String city:citys) {
             String realUrl = getSearchCityUrl(data,city);
             if (realUrl == null || "".equals(realUrl)) {
                 dao.delWatherWrn(city);
             } else {
                 String wholeUrl = VALUE_URL + realUrl + "?_=" + TIME_STAMP;
                 Map<String, String> map = dealNewUrl(wholeUrl);
                 System.out.println("预警内容： "+map.get("ISSUECONTENT")+"类型:"+map.get("SIGNALTYPE")+"等级:"+map.get("SIGNALLEVEL"));
                 String  time=map.get("ISSUETIME");//时间
                 String content=map.get("ISSUECONTENT").split("（预警信息来源")[0];
                 String type=map.get("SIGNALTYPE")+"预警";
                 String level=map.get("SIGNALLEVEL");
                 Integer count=dao.getIsCz(city,time);
                 dao.delWatherWrn(city);
                 if(count>0){
                     dao.updateWarther(city,time);
                 }else{
                     dao.insertWatherWarn(city,content,type,level,time);
                 }
             }
         }
     }catch (Exception e){
         log.error(e.toString(),e);
     }
    }


    /**
     * 处理所有城市灾害列表页面
     *
     * @param url
     * @return
     */
    public static String getWarnCityList(String url) {
        String allWeatherInfo = null;
        CloseableHttpClient client;
        client = HttpClientBuilder.create().build();

        HttpGet get = new HttpGet(url);
        RequestConfig config = RequestConfig.custom()
                .setConnectTimeout(10*1000) //连接超时时间
                .setConnectionRequestTimeout(6000) //从连接池中取的连接的最长时间
                .setSocketTimeout(2*60*1000) //数据传输的超时时间
                .build();
        get.setConfig(config);
        HttpResponse response;
        try {
            response = client.execute(get);
            if (response != null) {
                HttpEntity entity = response.getEntity();
                allWeatherInfo = EntityUtils.toString(entity, "UTF-8");
            } else {
                System.out.println("全国所有城市都没有预警或者中国预警网错误");
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return allWeatherInfo;
    }

    /**
     * 获得城市列表
     * @param allWeatherInfo
     * @return
     */
    private static List<List<String>> getCityLists(String allWeatherInfo) {
        String[] split = allWeatherInfo.split("=");
        String value = split[1];
        String substring = value.substring(0, value.length() - 1);
        Map<String, List<List<String>>> jsonMap = JSON.parseObject(substring, Map.class);
        return jsonMap.get("data");
    }

    /**
     * 得到搜索城市的url
     *
     * @param data
     * @return
     */
    public static String getSearchCityUrl(List<List<String>> data, String city) {
        String realUrl = "";
        List<List<String>> sortedList = data.stream()
                .filter(strings -> strings.get(0).contains(city))
                .sorted(Comparator.comparing(s -> s.get(0).length()))
                .limit(1)
                .collect(Collectors.toList());
        if (sortedList.isEmpty()) {
            return realUrl;
        }
        realUrl = sortedList.get(0).get(1);
        return realUrl;
    }

    /**
     * 访问城市url
     *
     * @param url
     * @return
     */
    public static Map<String, String> dealNewUrl(String url) {
        Map<String, String> map=new HashMap<>(16);
        CloseableHttpClient client;
        client = HttpClients.createDefault();
        HttpGet get = new HttpGet(url);
        HttpResponse response;
        try {
            response = client.execute(get);
            HttpEntity entity = response.getEntity();
            if (entity != null) {
                String string = EntityUtils.toString(entity, "UTF-8");
                //  System.out.println("搜索城市数据： " + string);
                String[] split = string.split("=");
                String s = split[1];
                map = JSON.parseObject(s, Map.class);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return map;
    }

}