package com.moral.api.service.impl;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.entity.Device;
import com.moral.api.entity.Sensor;
import com.moral.api.mapper.DeviceMapper;
import com.moral.api.service.DeviceService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.moral.constant.Constants;
import com.moral.constant.RedisConstants;
import com.moral.util.DateUtils;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.util.ObjectUtils;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * <p>
 * 设备表 服务实现类
 * </p>
 *
 * @author moral
 * @since 2021-06-28
 */
@Service
public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> implements DeviceService {

    @Autowired
    private DeviceMapper deviceMapper;

    @Autowired
    private RedisTemplate redisTemplate;

    @Override
    public List<Device> getDevicesByMonitorPointId(Integer monitorPointId) {
        QueryWrapper<Device> wrapper = new QueryWrapper();
        wrapper.eq("monitor_point_id", monitorPointId);
        wrapper.eq("is_delete", Constants.NOT_DELETE);
        return deviceMapper.selectList(wrapper);
    }

    @Override
    public Map<String, Object> getSensorsByMac(Map<String, Object> params) {
        //设备mac
        List<String> macs = (List<String>) params.remove("macs");
        List<Map<String, Object>> elementLists = new ArrayList<>();

        for (String mac : macs) {
            //从redis中获取设备因子信息
            Device device = (Device) redisTemplate.opsForHash().get(RedisConstants.DEVICE_INFO, mac);
            List<Sensor> sensors = device.getVersion().getSensors();
            Map<String, Object> map = new HashMap<>();
            for (Sensor sensor : sensors) {
                String sensorCode = sensor.getCode();
                String name = sensor.getName();
                map.put(sensorCode, name);
            }
            elementLists.add(map);
        }

        Map<String, Object> map = elementLists.parallelStream()
                .filter(elementList -> elementList.size() != 0)
                .reduce((a, b) -> {
                    a.keySet().retainAll(b.keySet());
                    return a;
                }).orElse(new HashMap<>());
        return map;
    }

    @Override
    public List<Map<String, Object>> getTrendChartData(Map<String, Object> params) {
        Object type = params.get("type");
        //设备mac
        List<String> macs = (List<String>) params.remove("macs");

        QueryWrapper<Device> queryWrapper = new QueryWrapper<>();
        queryWrapper.select("mac", "name").in("mac", macs);
        List<Device> devices = deviceMapper.selectList(queryWrapper);

        //所选时间
        List<String> times = (List<String>) params.remove("times");
        //因子code
        String sensorCode = params.get("sensorCode").toString();
        String end;
        String timeUnits;
        String dateFormat;
        //返回结果集,time=data
        List<Map<String, Object>> result = new ArrayList<>();

        for (String start : times) {
            if ("hour".equals(type)) {
                end = DateUtils.getDateAddDay(start, 1);
                String yearAndMonth = DateUtils.dateToDateString(DateUtils.getDate(start, DateUtils.yyyy_MM_dd_EN), DateUtils.yyyyMM_EN);
                timeUnits = "hourly_" + yearAndMonth;
                dateFormat = "%Y-%m-%d %H";
            } else if ("day".equals(type)) {
                end = DateUtils.getDateAddMonth(start, 1);
                timeUnits = "daily";
                dateFormat = "%Y-%m-%d";
            } else {
                end = DateUtils.getDateAddYear(start, 1);
                timeUnits = "monthly";
                dateFormat = "%Y-%m";
            }
            params.put("timeUnits", timeUnits);
            params.put("start", start);
            params.put("end", end);
            params.put("macs", macs);
            params.put("dateFormat", dateFormat);
            //获取多设备指定因子数据
            List<Map<String, Object>> list = deviceMapper.getTrendChartData(params);

            for (String s : DateUtils.getTimeLag(start)) {
                Map<String, Object> resultMap = new HashMap<>();
                resultMap.put("time", s);
                List<Map<String, Object>> deviceData = new ArrayList<>();
                for (Device device : devices) {
                    Map<String, Object> valueMap = new HashMap<>();
                    valueMap.put("name", device.getName());
                    valueMap.put("sensorValue", "");
                    for (Map<String, Object> map : list) {
                        Object time = map.get("time");
                        Object sensorValue = map.get(sensorCode);
                        Object mac = map.get("mac");
                        if (s.equals(time) && device.getMac().equals(mac)) {
                            valueMap.put("sensorValue", sensorValue);
                        }
                    }
                    deviceData.add(valueMap);
                }
                resultMap.put("deviceData", deviceData);
                result.add(resultMap);
            }
        }
        return result;
    }

    @Override
    public Device getDeviceByMac(String mac) {
        Map<String, Object> deviceMap = (Map<String, Object>) redisTemplate.opsForHash().get(RedisConstants.DEVICE, mac);
        Device device = JSON.parseObject(JSON.toJSONString(deviceMap), Device.class);
        //从map获取organizationId和monitorPointId以及versionId
        Map<String, Object> organizationMap = (Map<String, Object>) deviceMap.get("organization");
        Map<String, Object> monitorPointMap = (Map<String, Object>) deviceMap.get("monitorPoint");
        Map<String, Object> versionMap = (Map<String, Object>) deviceMap.get("version");
        device.setDeviceVersionId((Integer) versionMap.get("id"));
        device.setOrganizationId((Integer) organizationMap.get("id"));
        device.setMonitorPointId((Integer) monitorPointMap.get("id"));
        //如果缓存为空则查询数据库
        if (ObjectUtils.isEmpty(device)) {
            return getDeviceByMacFromDB(mac);
        }
        return device;
    }

    @Override
    public List<Map<String, Object>> getDevicesByOrganizationId(Integer orgId) {
        //从数据库获取mac
        QueryWrapper<Device> queryWrapper = new QueryWrapper<>();
        queryWrapper.select("mac").eq("organization_id", orgId).eq("is_delete", Constants.NOT_DELETE);
        List<Device> devices = deviceMapper.selectList(queryWrapper);
        //从redis获取设备详细信息
        return devices.stream().map(device -> (Map<String, Object>) redisTemplate.opsForHash().get(RedisConstants.DEVICE, device.getMac())).collect(Collectors.toList());
    }

    private Device getDeviceByMacFromDB(String mac) {
        QueryWrapper<Device> wrapper = new QueryWrapper<>();
        wrapper.eq("mac", mac);
        wrapper.eq("is_delete", Constants.NOT_DELETE);
        return deviceMapper.selectOne(wrapper);
    }


}