package com.moral.api.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.entity.CityAqi;
import com.moral.api.entity.CityConfigAqi;
import com.moral.api.mapper.CityAqiMapper;
import com.moral.api.service.CityAqiService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.api.service.CityConfigAqiService;
import com.moral.constant.Constants;
import com.moral.constant.RedisConstants;
import com.moral.pojo.AQI;
import com.moral.util.AQIUtils;
import com.moral.util.AmendUtils;
import com.moral.util.ComprehensiveIndexUtils;
import com.moral.util.DateUtils;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.util.ObjectUtils;
import org.springframework.web.client.RestTemplate;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.OptionalDouble;
import java.util.stream.Collectors;
import java.util.stream.DoubleStream;

/**
 * <p>
 * 城市aqi实测小时数据表 服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-10-11
 */
@Service
public class CityAqiServiceImpl extends ServiceImpl<CityAqiMapper, CityAqi> implements CityAqiService {

    @Autowired
    private CityAqiMapper cityAqiMapper;

    @Autowired
    private CityConfigAqiService cityConfigAqiService;

    @Autowired
    private RestTemplate restTemplate;

    @Autowired
    private RedisTemplate redisTemplate;

    //城市aqi数据来源于，阿里云市场：墨迹天气（基础版CityID）全国历史天气预报接口
    @Override
    public void insertCityAqi() {
        //pubtime=08的数据，是07-08之间的数据，存入数据库时的时间为07点
        Date now = new Date();
        Date time = DateUtils.dataToTimeStampTime(now, DateUtils.yyyy_MM_dd_HH_EN);
        //存入数据库是time字段实际时间
        Date dataTime = DateUtils.addHours(time, -1);
        Date start = null;
        if (DateUtils.getHour(time) >= 8 || DateUtils.getHour(time) == 0) {
            start = DateUtils.addHours(time, -8);
        }

        //获取城市配置
        QueryWrapper<CityConfigAqi> wrapper = new QueryWrapper<>();
        wrapper.select("city_code", "city_id").eq("is_delete", Constants.NOT_DELETE);
        List<CityConfigAqi> list = cityConfigAqiService.list(wrapper);

        //获取历史数据，用于计算臭氧滑动值
        Map<Integer, List<Map<String, Object>>> cityData = null;
        if (start != null) {
            QueryWrapper<CityAqi> queryWrapper = new QueryWrapper<>();
            List<Integer> cityCodes = list.stream().map(CityConfigAqi::getCityCode)
                    .collect(Collectors.toList());

            queryWrapper.select("city_code", "time", "value")
                    .ge("time", start)
                    .in("city_code", cityCodes);
            List<Map<String, Object>> selectMaps = cityAqiMapper.selectMaps(queryWrapper);

            //按city_code分组
            cityData = selectMaps.stream()
                    .collect(Collectors.groupingBy(o -> Integer.parseInt(o.get("city_code").toString())));
        }


        List<CityAqi> cityAqiList = new ArrayList<>();


        String url = "http://aliv13.data.moji.com/whapi/json/alicityweather/aqi";
        String appcode = "31b6ea8f804a4472be3b633cfee44849";
        HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.add("Authorization", "APPCODE " + appcode);
        //请求参数
        LinkedMultiValueMap<String, Object> requestParams = new LinkedMultiValueMap<>();

        for (CityConfigAqi cityConfigAqi : list) {
            CityAqi cityAqi = new CityAqi();
            Integer cityCode = cityConfigAqi.getCityCode();
            Map<String, Object> data;
            try {
                //从第三方接口获取数据
                requestParams.set("cityId", cityConfigAqi.getCityId());
                HttpEntity<MultiValueMap<String, Object>> httpEntity = new HttpEntity<>(requestParams, httpHeaders);
                ResponseEntity<String> response = restTemplate.postForEntity(url, httpEntity, String.class);
                data = JSONObject.parseObject(response.getBody(), Map.class);
            } catch (Exception e) {
                continue;
            }
            if (ObjectUtils.isEmpty(data)) {
                continue;
            }

            Map<String, Object> map = (Map<String, Object>) data.get("data");
            Map<String, Object> aqi = (Map<String, Object>) map.get("aqi");
            aqi.remove("pm25");
            aqi.remove("pm10");
            aqi.remove("so2");
            aqi.remove("no2");
            aqi.remove("co");
            aqi.remove("o3");

            aqi.put("PM2_5", aqi.remove("pm25C"));
            aqi.put("PM10", aqi.remove("pm10C"));
            aqi.put("SO2", aqi.remove("so2C"));
            aqi.put("NO2", aqi.remove("no2C"));
            aqi.put("CO", aqi.remove("coC"));
            aqi.put("O3", aqi.remove("o3C"));
            aqi.put("AQI", aqi.remove("value"));

            //o3滑动值计算
            if (cityData != null) {
                List<Map<String, Object>> cityAqis = cityData.get(cityCode);
                if (cityAqis == null) {
                    cityAqis = new ArrayList<>();
                }

                Map<String, Object> params = new HashMap<>();
                params.put("time", DateUtils.dateToDateString(dataTime, DateUtils.yyyy_MM_dd_HH_mm_ss_S_EN));
                params.put("value", JSONObject.toJSONString(aqi));
                cityAqis.add(params);
                if (cityAqis.size() >= 6) {
                    OptionalDouble average = cityAqis.stream().flatMapToDouble(v -> {
                        Map<String, Object> dataValue = JSONObject.parseObject((String) v.get("value"), Map.class);
                        double o3 = Double.parseDouble(dataValue.get("O3").toString());
                        return DoubleStream.of(o3);
                    }).average();
                    if (average.isPresent()) {
                        double O3_8H = AmendUtils.sciCal(average.getAsDouble(), 0);
                        aqi.put("O3_8H", O3_8H);
                    }
                }
            }

            //综合指数计算
            Map<String, Object> temp = new HashMap<>(aqi);
            temp.put("O3", temp.get("O3_8H"));
            Double compositeIndex = ComprehensiveIndexUtils.dailyData(temp);
            aqi.put("compositeIndex", compositeIndex);

            //首要污染物计算
            Map<String, Object> sixParamMap = new HashMap<>();
            sixParamMap.put(Constants.SENSOR_CODE_PM25, aqi.get("PM2_5"));
            sixParamMap.put(Constants.SENSOR_CODE_PM10, aqi.get("PM10"));
            sixParamMap.put(Constants.SENSOR_CODE_SO2, aqi.get("SO2"));
            sixParamMap.put(Constants.SENSOR_CODE_NO2, aqi.get("NO2"));
            sixParamMap.put(Constants.SENSOR_CODE_CO, aqi.get("CO"));
            sixParamMap.put(Constants.SENSOR_CODE_O3, aqi.get("O3"));
            AQI aqiAndPollutant = AQIUtils.hourlyAQI(sixParamMap);
            aqi.put("primaryPollutant", aqiAndPollutant.getPrimaryPollutantNames());


            cityAqi.setCityCode(cityCode);
            cityAqi.setTime(dataTime);
            cityAqi.setValue(JSONObject.toJSONString(aqi));
            cityAqiList.add(cityAqi);
            //存入redis
            redisTemplate.opsForHash().put(RedisConstants.CITY_AQI, cityCode.toString(), aqi);
        }
        cityAqiMapper.insertCityAqi(cityAqiList);
    }

    @Override
    public List<CityAqi> getCityAqi() {
        String time = DateUtils.getDateStringOfHour(-1, DateUtils.yyyy_MM_dd_HH_EN) + ":00:00";
        QueryWrapper<CityAqi> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("time", time);
        return cityAqiMapper.selectList(queryWrapper);
    }
}