package com.moral.api.service.impl;

import com.moral.api.entity.*;
import com.moral.api.mapper.ServicesScopeDeviceMapper;
import com.moral.api.mapper.ServicesScopeMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.ObjectUtils;

import java.math.BigDecimal;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.OptionalDouble;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import java.util.stream.DoubleStream;
import java.util.stream.Stream;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.api.mapper.DeviceMapper;
import com.moral.api.mapper.HistoryDailyMapper;
import com.moral.api.service.HistoryDailyService;
import com.moral.api.service.OrganizationService;
import com.moral.api.utils.GetCenterPointFromListOfCoordinates;
import com.moral.constant.Constants;
import com.moral.util.DateUtils;
import com.moral.util.PollutantUtils;

/**
 * <p>
 * 日数据 服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-07-14
 */
@Service
public class HistoryDailyServiceImpl extends ServiceImpl<HistoryDailyMapper, HistoryDaily> implements HistoryDailyService {

    @Autowired
    private HistoryDailyMapper historyDailyMapper;

    @Autowired
    private DeviceMapper deviceMapper;

    @Autowired
    private OrganizationService organizationService;

    @Autowired
    private ServicesScopeMapper servicesScopeMapper;

    @Autowired
    private ServicesScopeDeviceMapper servicesScopeDeviceMapper;

    @Override
    public Map<String, Object> getMonthAvg(Map<String, Object> params) {
        params.put("start", DateUtils.getFirstDayOfCurrMonth());
        params.put("end", DateUtils.getLastDayOfCurrMonth());
        Map<String, Object> data = historyDailyMapper.getAvgByMac(params);
        Map<String, Object> result = new HashMap<>();
        if (ObjectUtils.isEmpty(data)) {
            result.put("avg", Constants.NULL_VALUE);
            return result;
        }
        double aDouble = Double.parseDouble(data.get(params.get("sensorCode")).toString());
        double v = new BigDecimal(aDouble).setScale(1, BigDecimal.ROUND_HALF_UP).doubleValue();
//        result.put("avg", data.get(params.get("sensorCode")));
        result.put("avg", ""+v);
        return result;
    }

    @Override
    public HistoryDaily getHistoryDailyByMacAndDate(String mac, Date date) {
        QueryWrapper<HistoryDaily> wrapper = new QueryWrapper<>();
        wrapper.eq("mac", mac);
        wrapper.eq("time", date);
        List<HistoryDaily> historyDailies = historyDailyMapper.selectList(wrapper);
        if (ObjectUtils.isEmpty(historyDailies))
            return null;
        return historyDailies.get(0);
    }


    @Override
    public Map<String, HistoryDaily> getHistoryDailyByMacsAndDate(List<String> mac, Date date) {
        QueryWrapper<HistoryDaily> wrapper = new QueryWrapper<>();
        wrapper.in("mac", mac);
        wrapper.eq("time", date);
        List<HistoryDaily> historyDailies = historyDailyMapper.selectList(wrapper);
        Map<String, HistoryDaily> map = new HashMap<>();
        for (HistoryDaily historyDaily : historyDailies) {
            map.put(historyDaily.getMac(), historyDaily);
        }
        return map;
    }

    @Override
    public List<HistoryDaily> getHistoryDailyByMacAndTimeSlot(String mac, Date startDate, Date endDate) {
        QueryWrapper<HistoryDaily> wrapper = new QueryWrapper<>();
        wrapper.in("mac", mac);
        wrapper.between("time", startDate, endDate);
        List<HistoryDaily> historyDailies = historyDailyMapper.selectList(wrapper);
        return historyDailies;
    }

    @Override
    public List<HistoryDaily> getHistoryDailyByMacAndTimeSlot( List<String> macs, Date startDate, Date endDate) {
        QueryWrapper<HistoryDaily> wrapper = new QueryWrapper<>();
        wrapper.in("mac", macs);
        wrapper.between("time", startDate, endDate);
        List<HistoryDaily> historyDailies = historyDailyMapper.selectList(wrapper);
        return historyDailies;
    }

    @Override
    public Map<String, Object> getThermodynamicDiagramDataByOrgIdSensorCodeTime(Map<String, Object> parameters) {
        Map<String, Object> resultMap = new HashMap<>();
        int orgId = Integer.parseInt(parameters.get("organization_id").toString());
        //定义一个集合，存放所有id
        List<Integer> allOrgId = new ArrayList<>();
        allOrgId.add(orgId);
        //循环集合
        //所有子组织
        List<Organization> allChildrenOrganization = organizationService.getChildrenOrganizationsById(orgId);
        if (!ObjectUtils.isEmpty(allChildrenOrganization) || allChildrenOrganization.size() < 1) {
            for (Organization organization : allChildrenOrganization) {
                allOrgId.add(organization.getId());
            }
        }
        //集合去重
        List<Integer> allOrgIdWithoutDuplicates = allOrgId.stream().distinct().collect(Collectors.toList());
        //声明一个list，存放设备mac
        List<String> deviceMacList = new ArrayList<>();
        //声明一个map，Mac作为key，device作为value
        Map<String, Device> deviceMap = new HashMap<>();
        List<Double> longitudeList = new ArrayList<>();
        List<Double> latitudeList = new ArrayList<>();
        for (Integer orgIdWithoutDuplicates : allOrgIdWithoutDuplicates) {
            //根据id查询所属设备
            QueryWrapper<Device> wrapper_device = new QueryWrapper<>();
            wrapper_device.eq("is_delete", Constants.NOT_DELETE).eq("organization_id", orgIdWithoutDuplicates);
            List<Device> devices = new ArrayList<>();
            devices = deviceMapper.selectList(wrapper_device);
            if (devices.size() > 0) {
                for (Device device : devices) {
                    String mac = device.getMac();
                    deviceMacList.add(mac);
                    deviceMap.put(mac, device);
                    double longitude = device.getLongitude();
                    double latitude = device.getLatitude();
                    longitudeList.add(longitude);
                    latitudeList.add(latitude);
                }
            } else {
                continue;
            }
        }
        //获取时间
        String time = parameters.get("time").toString().substring(0, 10) + " 00:00:00";
        resultMap.put("time", time);
        QueryWrapper<HistoryDaily> historyDailyQueryWrapper = new QueryWrapper<>();
        historyDailyQueryWrapper.eq("time", time);
        historyDailyQueryWrapper.in("mac", deviceMacList);
        List<HistoryDaily> historyDailies = historyDailyMapper.selectList(historyDailyQueryWrapper);
        List<Object> list = new ArrayList<>();
        for (HistoryDaily historyDailyData : historyDailies) {
            List<Object> list1 = new ArrayList<>();
            String mac = historyDailyData.getMac();
            Device device = deviceMap.get(mac);
            double longitude = device.getLongitude();
            double latitude = device.getLatitude();
            JSONObject value = JSONObject.parseObject(historyDailyData.getValue());
            double num = Double.parseDouble(value.get(parameters.get("sensor_code")).toString());
            int level = PollutantUtils.pollutantLevel(num, (parameters.get("sensor_code")).toString());
            list1.add(longitude);
            list1.add(latitude);
            list1.add(level);
            list.add(list1);
        }
        resultMap.put("list", list);
        double latitudeMin = Collections.min(latitudeList) - 0.0018;
        double latitudeMax = Collections.max(latitudeList) + 0.0018;
        double longitudeMin = Collections.min(longitudeList) - 0.2 / (111 * Math.cos(latitudeMin));
        double longitudeMax = Collections.max(longitudeList) + 0.2 / (111 * Math.cos(latitudeMin));
        List<Double> bound = new ArrayList<>();
        bound.add(longitudeMin);
        bound.add(latitudeMin);
        bound.add(longitudeMax);
        bound.add(latitudeMax);
        resultMap.put("bound", bound);
        List<List> bound1 = new ArrayList<>();
        List<Double> left_up = new ArrayList<>();
        left_up.add(latitudeMax);
        left_up.add(longitudeMin);
        List<Double> right_up = new ArrayList<>();
        right_up.add(latitudeMax);
        right_up.add(longitudeMax);
        List<Double> left_down = new ArrayList<>();
        left_down.add(latitudeMin);
        left_down.add(longitudeMin);
        List<Double> right_down = new ArrayList<>();
        right_down.add(latitudeMin);
        right_down.add(longitudeMax);
        bound1.add(left_up);
        bound1.add(right_up);
        bound1.add(right_down);
        bound1.add(left_down);
        List<GeoCoordinate> geoCoordinates = new ArrayList<>();
        for (List bo : bound1) {
            GeoCoordinate g = new GeoCoordinate();
            g.setLatitude(Double.parseDouble(bo.get(0).toString()));
            g.setLongitude(Double.parseDouble(bo.get(1).toString()));
            geoCoordinates.add(g);
        }
        GeoCoordinate centerPoint400 = GetCenterPointFromListOfCoordinates.getCenterPoint400(geoCoordinates);
        List centerPoint = new ArrayList();
        centerPoint.add(centerPoint400.getLongitude());
        centerPoint.add(centerPoint400.getLatitude());
        resultMap.put("centerPoint", centerPoint);
        return resultMap;
    }

    @Override
    public Map<String, Object> getThermodynamicDiagramDataByOrgIdSensorCodeTimeV2(Map<String, Object> parameters) {
        Map<String, Object> resultMap = new HashMap<>();
        int servicesScopeId = Integer.parseInt(parameters.get("servicesScopeId").toString());
        QueryWrapper<ServicesScopeDevice> servicesScopeDeviceQueryWrapper = new QueryWrapper<>();
        servicesScopeDeviceQueryWrapper.eq("is_delete",Constants.NOT_DELETE);
        servicesScopeDeviceQueryWrapper.eq("services_scope_id",servicesScopeId);
        List<ServicesScopeDevice> servicesScopeDevices = servicesScopeDeviceMapper.selectList(servicesScopeDeviceQueryWrapper);
        List<Integer> deviceIds = servicesScopeDevices.stream().map(p -> p.getDeviceId()).collect(Collectors.toList());
        //声明一个list，存放设备mac
        List<String> deviceMacList = new ArrayList<>();
        //声明一个map，Mac作为key，device作为value
        Map<String, Device> deviceMap = new HashMap<>();
        //根据id查询所属设备
        QueryWrapper<Device> wrapper_device = new QueryWrapper<>();
        wrapper_device.eq("is_delete", Constants.NOT_DELETE);
        wrapper_device.in("id",deviceIds);
        List<Device> devices = new ArrayList<>();
        devices = deviceMapper.selectList(wrapper_device);
        if (devices.size() > 0) {
            for (Device device : devices) {
                String mac = device.getMac();
                deviceMacList.add(mac);
                deviceMap.put(mac, device);
            }
        }
        //获取时间
        String time = parameters.get("time").toString().substring(0, 10) + " 00:00:00";
        resultMap.put("time", time);
        QueryWrapper<HistoryDaily> historyDailyQueryWrapper = new QueryWrapper<>();
        historyDailyQueryWrapper.eq("time", time);
        historyDailyQueryWrapper.in("mac", deviceMacList);
        List<HistoryDaily> historyDailies = historyDailyMapper.selectList(historyDailyQueryWrapper);
        List<Object> list = new ArrayList<>();
        for (HistoryDaily historyDailyData : historyDailies) {
            List<Object> list1 = new ArrayList<>();
            String mac = historyDailyData.getMac();
            Device device = deviceMap.get(mac);
            double longitude = device.getLongitude();
            double latitude = device.getLatitude();
            JSONObject value = JSONObject.parseObject(historyDailyData.getValue());
            double num = Double.parseDouble(value.get(parameters.get("sensor_code")).toString());
            int level = PollutantUtils.pollutantLevel(num, (parameters.get("sensor_code")).toString());
            list1.add(longitude);
            list1.add(latitude);
            list1.add(level);
            list.add(list1);
        }
        resultMap.put("list", list);
        ServicesScope servicesScope = servicesScopeMapper.selectById(servicesScopeId);
        String boundary = servicesScope.getBoundary();
        String[] boundary_points = boundary.split(";");
        List boundary_pointList = new ArrayList();
        List bound = new ArrayList();
        for (String boundary_point:boundary_points) {
            List boundary_point_one = new ArrayList();
            String[] boundary_point_one_array = boundary_point.split(",");
            boundary_point_one.add(Double.parseDouble(boundary_point_one_array[0]));
            boundary_point_one.add(Double.parseDouble(boundary_point_one_array[1]));
            boundary_pointList.add(boundary_point_one);
        }
        if (boundary_pointList.size()>0){
            boundary_pointList.add(boundary_pointList.get(0));
        }
        bound.add(boundary_pointList);
        resultMap.put("bound", bound);
        List centerPoint = new ArrayList();
        centerPoint.add(servicesScope.getCenterLongitude());
        centerPoint.add(servicesScope.getCenterLatitude());
        resultMap.put("centerPoint", centerPoint);
        return resultMap;
    }

    @Override
    public List<Map<String, Object>> getThermodynamicDiagramDataByOrgIdSensorCodeTimeSlot(Map<String, Object> parameters) {
        int orgId = Integer.parseInt(parameters.get("organization_id").toString());
        //定义一个集合，存放所有id
        List<Integer> allOrgId = new ArrayList<>();
        allOrgId.add(orgId);
        //循环集合
        //所有子组织
        List<Organization> allChildrenOrganization = organizationService.getChildrenOrganizationsById(orgId);
        if (!ObjectUtils.isEmpty(allChildrenOrganization) || allChildrenOrganization.size() < 1) {
            for (Organization organization : allChildrenOrganization) {
                allOrgId.add(organization.getId());
            }
        }
        //集合去重
        List<Integer> allOrgIdWithoutDuplicates = allOrgId.stream().distinct().collect(Collectors.toList());
        //声明一个list，存放设备mac
        List<String> deviceMacList = new ArrayList<>();
        //声明一个map，Mac作为key，device作为value
        Map<String, Device> deviceMap = new HashMap<>();
        List<Double> longitudeList = new ArrayList<>();
        List<Double> latitudeList = new ArrayList<>();
        for (Integer orgIdWithoutDuplicates : allOrgIdWithoutDuplicates) {
            //根据id查询所属设备
            QueryWrapper<Device> wrapper_device = new QueryWrapper<>();
            wrapper_device.eq("is_delete", Constants.NOT_DELETE).eq("organization_id", orgIdWithoutDuplicates);
            List<Device> devices = new ArrayList<>();
            devices = deviceMapper.selectList(wrapper_device);
            if (devices.size() > 0) {
                for (Device device : devices) {
                    String mac = device.getMac();
                    deviceMacList.add(mac);
                    deviceMap.put(mac, device);
                    double longitude = device.getLongitude();
                    double latitude = device.getLatitude();
                    longitudeList.add(longitude);
                    latitudeList.add(latitude);
                }
            } else {
                continue;
            }
        }
        double latitudeMin = Collections.min(latitudeList) - 0.0018;
        double latitudeMax = Collections.max(latitudeList) + 0.0018;
        double longitudeMin = Collections.min(longitudeList) - 0.2 / (111 * Math.cos(latitudeMin));
        double longitudeMax = Collections.max(longitudeList) + 0.2 / (111 * Math.cos(latitudeMin));
        List<Double> bound = new ArrayList<>();
        bound.add(longitudeMin);
        bound.add(latitudeMin);
        bound.add(longitudeMax);
        bound.add(latitudeMax);
        List<List> bound1 = new ArrayList<>();
        List<Double> left_up = new ArrayList<>();
        left_up.add(latitudeMax);
        left_up.add(longitudeMin);
        List<Double> right_up = new ArrayList<>();
        right_up.add(latitudeMax);
        right_up.add(longitudeMax);
        List<Double> left_down = new ArrayList<>();
        left_down.add(latitudeMin);
        left_down.add(longitudeMin);
        List<Double> right_down = new ArrayList<>();
        right_down.add(latitudeMin);
        right_down.add(longitudeMax);
        bound1.add(left_up);
        bound1.add(right_up);
        bound1.add(right_down);
        bound1.add(left_down);
        List<GeoCoordinate> geoCoordinates = new ArrayList<>();
        for (List bo : bound1) {
            GeoCoordinate g = new GeoCoordinate();
            g.setLatitude(Double.parseDouble(bo.get(0).toString()));
            g.setLongitude(Double.parseDouble(bo.get(1).toString()));
            geoCoordinates.add(g);
        }
        GeoCoordinate centerPoint400 = GetCenterPointFromListOfCoordinates.getCenterPoint400(geoCoordinates);
        List centerPoint = new ArrayList();
        centerPoint.add(centerPoint400.getLongitude());
        centerPoint.add(centerPoint400.getLatitude());
        List<Map<String, Object>> resultList = new ArrayList<>();
        //获取时间
        String endTime = parameters.get("endTime").toString().substring(0, 10) + " 00:00:00";
        //获取时间
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        int days = Integer.parseInt(parameters.get("days").toString());
        Date newEndTime = new Date();
        for (int i = days; i >= 0; i--) {
            Map<String, Object> resultMap = new HashMap<>();
            //先存放中心点和边界点
            resultMap.put("centerPoint", centerPoint);
            resultMap.put("bound", bound);
            Calendar calendar = Calendar.getInstance();
            try {
                newEndTime = df.parse(endTime);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            calendar.setTime(newEndTime);
            calendar.set(Calendar.DAY_OF_MONTH, calendar.get(Calendar.DAY_OF_MONTH) - i);
            String time = df.format(calendar.getTime()) + " 00:00:00";
            //存放时间
            resultMap.put("time", time);
            QueryWrapper<HistoryDaily> historyDailyQueryWrapper = new QueryWrapper<>();
            historyDailyQueryWrapper.eq("time", time);
            historyDailyQueryWrapper.in("mac", deviceMacList);
            List<HistoryDaily> historyDailies = historyDailyMapper.selectList(historyDailyQueryWrapper);
            List<Object> list = new ArrayList<>();
            for (HistoryDaily historyDailyData : historyDailies) {
                List<Object> list1 = new ArrayList<>();
                String mac = historyDailyData.getMac();
                Device device = deviceMap.get(mac);
                double longitude = device.getLongitude();
                double latitude = device.getLatitude();
                JSONObject value = JSONObject.parseObject(historyDailyData.getValue());
                double num = Double.parseDouble(value.get(parameters.get("sensor_code")).toString());
                int level = PollutantUtils.pollutantLevel(num, (parameters.get("sensor_code")).toString());
                list1.add(longitude);
                list1.add(latitude);
                list1.add(level);
                list.add(list1);
            }
            resultMap.put("list", list);
            resultList.add(resultMap);
        }
        return resultList;
    }

    @Override
    public List<Map<String, Object>> getThermodynamicDiagramDataByOrgIdSensorCodeTimeSlotV2(Map<String, Object> parameters) {
        int servicesScopeId = Integer.parseInt(parameters.get("servicesScopeId").toString());
        QueryWrapper<ServicesScopeDevice> servicesScopeDeviceQueryWrapper = new QueryWrapper<>();
        servicesScopeDeviceQueryWrapper.eq("is_delete",Constants.NOT_DELETE);
        servicesScopeDeviceQueryWrapper.eq("services_scope_id",servicesScopeId);
        List<ServicesScopeDevice> servicesScopeDevices = servicesScopeDeviceMapper.selectList(servicesScopeDeviceQueryWrapper);
        List<Integer> deviceIds = servicesScopeDevices.stream().map(p -> p.getDeviceId()).collect(Collectors.toList());
        //声明一个list，存放设备mac
        List<String> deviceMacList = new ArrayList<>();
        //声明一个map，Mac作为key，device作为value
        Map<String, Device> deviceMap = new HashMap<>();
        //根据id查询所属设备
        QueryWrapper<Device> wrapper_device = new QueryWrapper<>();
        wrapper_device.eq("is_delete", Constants.NOT_DELETE);
        wrapper_device.in("id",deviceIds);
        List<Device> devices = new ArrayList<>();
        devices = deviceMapper.selectList(wrapper_device);
        if (devices.size() > 0) {
            for (Device device : devices) {
                String mac = device.getMac();
                deviceMacList.add(mac);
                deviceMap.put(mac, device);
            }
        }
        ServicesScope servicesScope = servicesScopeMapper.selectById(servicesScopeId);
        String boundary = servicesScope.getBoundary();
        String[] boundary_points = boundary.split(";");
        List boundary_pointList = new ArrayList();
        List bound = new ArrayList();
        for (String boundary_point:boundary_points) {
            List boundary_point_one = new ArrayList();
            String[] boundary_point_one_array = boundary_point.split(",");
            boundary_point_one.add(Double.parseDouble(boundary_point_one_array[0]));
            boundary_point_one.add(Double.parseDouble(boundary_point_one_array[1]));
            boundary_pointList.add(boundary_point_one);
        }
        if (boundary_pointList.size()>0){
            boundary_pointList.add(boundary_pointList.get(0));
        }
        bound.add(boundary_pointList);
        List centerPoint = new ArrayList();
        centerPoint.add(servicesScope.getCenterLongitude());
        centerPoint.add(servicesScope.getCenterLatitude());
        List<Map<String, Object>> resultList = new ArrayList<>();
        //获取时间
        String endTime = parameters.get("endTime").toString().substring(0, 10) + " 00:00:00";
        //获取时间
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        int days = Integer.parseInt(parameters.get("days").toString());
        Date newEndTime = new Date();
        for (int i = days; i >= 0; i--) {
            Map<String, Object> resultMap = new HashMap<>();
            //先存放中心点和边界点
            resultMap.put("centerPoint", centerPoint);
            resultMap.put("bound", bound);
            Calendar calendar = Calendar.getInstance();
            try {
                newEndTime = df.parse(endTime);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            calendar.setTime(newEndTime);
            calendar.set(Calendar.DAY_OF_MONTH, calendar.get(Calendar.DAY_OF_MONTH) - i);
            String time = df.format(calendar.getTime()) + " 00:00:00";
            //存放时间
            resultMap.put("time", time);
            QueryWrapper<HistoryDaily> historyDailyQueryWrapper = new QueryWrapper<>();
            historyDailyQueryWrapper.eq("time", time);
            historyDailyQueryWrapper.in("mac", deviceMacList);
            List<HistoryDaily> historyDailies = historyDailyMapper.selectList(historyDailyQueryWrapper);
            List<Object> list = new ArrayList<>();
            for (HistoryDaily historyDailyData : historyDailies) {
                List<Object> list1 = new ArrayList<>();
                String mac = historyDailyData.getMac();
                Device device = deviceMap.get(mac);
                double longitude = device.getLongitude();
                double latitude = device.getLatitude();
                JSONObject value = JSONObject.parseObject(historyDailyData.getValue());
                double num = Double.parseDouble(value.get(parameters.get("sensor_code")).toString());
                int level = PollutantUtils.pollutantLevel(num, (parameters.get("sensor_code")).toString());
                list1.add(longitude);
                list1.add(latitude);
                list1.add(level);
                list.add(list1);
            }
            resultMap.put("list", list);
            resultList.add(resultMap);
        }
        return resultList;
    }

    @Override
    public List<HistoryDaily> getValueByMacs(List<String> macs, String time) {
        QueryWrapper<HistoryDaily> queryWrapper = new QueryWrapper<>();
        queryWrapper.select("time", "value")
                .likeRight("time", time)
                .in("mac", macs);
        return historyDailyMapper.selectList(queryWrapper);
    }

    @Override
    public Double calculatedValue(List<HistoryDaily> list, String sensorCode, String type) {
        Supplier<Stream<HistoryDaily>> supplier = list::stream;
        DoubleStream doubleStream = supplier.get()
                .flatMapToDouble(v -> {
                    Map<String, Object> dataValue = JSONObject.parseObject(v.getValue(), Map.class);
                    Object sensorValue = dataValue.get(sensorCode);
                    if (ObjectUtils.isEmpty(sensorValue)) {
                        return null;
                    }
                    double aDouble = Double.parseDouble(sensorValue.toString());
                    return DoubleStream.of(aDouble);
                });
        Double result = null;
        OptionalDouble optionalDouble = null;
        if ("sum".equals(type)) {
            result = doubleStream.sum();
        } else {
            if ("min".equals(type)) {
                optionalDouble = doubleStream.min();

            } else if ("max".equals(type)) {
                optionalDouble = doubleStream.max();

            } else if ("avg".equals(type)) {
                optionalDouble = doubleStream.average();
            }

            if (optionalDouble.isPresent()) {
                result = optionalDouble.getAsDouble();
            }
        }
        return result;
    }


}