package com.genersoft.iot.vmp.service.impl;

import com.genersoft.iot.vmp.conf.UserSetting;
import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.gb28181.bean.DeviceChannel;
import com.genersoft.iot.vmp.gb28181.bean.MobilePosition;
import com.genersoft.iot.vmp.gb28181.bean.Platform;
import com.genersoft.iot.vmp.gb28181.dao.DeviceChannelMapper;
import com.genersoft.iot.vmp.gb28181.dao.DeviceMapper;
import com.genersoft.iot.vmp.gb28181.dao.DeviceMobilePositionMapper;
import com.genersoft.iot.vmp.gb28181.dao.PlatformMapper;
import com.genersoft.iot.vmp.gb28181.utils.Coordtransform;
import com.genersoft.iot.vmp.service.IMobilePositionService;
import com.genersoft.iot.vmp.utils.DateUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@Service
public class MobilePositionServiceImpl implements IMobilePositionService {

    @Autowired
    private DeviceMapper deviceMapper;

    @Autowired
    private DeviceChannelMapper channelMapper;

    @Autowired
    private DeviceMobilePositionMapper mobilePositionMapper;

    @Autowired
    private UserSetting userSetting;


    @Autowired
    private PlatformMapper platformMapper;

    @Autowired
    private RedisTemplate<String, MobilePosition> redisTemplate;

    private final String REDIS_MOBILE_POSITION_LIST = "redis_mobile_position_list";

    @Override
    public void add(MobilePosition mobilePosition) {
        List<MobilePosition> list = new ArrayList<>();
        list.add(mobilePosition);
        add(list);
    }

    @Override
    public void add(List<MobilePosition> mobilePositionList) {
        redisTemplate.opsForList().leftPushAll(REDIS_MOBILE_POSITION_LIST, mobilePositionList);
    }

    private List<MobilePosition> get(int length) {
        Long size = redisTemplate.opsForList().size(REDIS_MOBILE_POSITION_LIST);
        if (size == null || size == 0) {
            return new ArrayList<>();
        }
        return redisTemplate.opsForList().rightPop(REDIS_MOBILE_POSITION_LIST, Math.min(length, size));
    }



    /**
     * 查询移动位置轨迹
     */
    @Override
    public synchronized List<MobilePosition> queryMobilePositions(String deviceId, String channelId, String startTime, String endTime) {
        return mobilePositionMapper.queryPositionByDeviceIdAndTime(deviceId, channelId, startTime, endTime);
    }

    @Override
    public List<Platform> queryEnablePlatformListWithAsMessageChannel() {
        return platformMapper.queryEnablePlatformListWithAsMessageChannel();
    }

    /**
     * 查询最新移动位置
     * @param deviceId
     */
    @Override
    public MobilePosition queryLatestPosition(String deviceId) {
        return mobilePositionMapper.queryLatestPositionByDevice(deviceId);
    }

    @Scheduled(fixedDelay = 1000)
    @Transactional
    public void executeTaskQueue() {
        int countLimit = 3000;
        List<MobilePosition> mobilePositions = get(countLimit);
        if (mobilePositions == null || mobilePositions.isEmpty()) {
            return;
        }
        if (userSetting.getSavePositionHistory()) {
            mobilePositionMapper.batchadd(mobilePositions);
        }
        log.info("[移动位置订阅]更新通道位置： {}", mobilePositions.size());
        Map<String, Map<Integer, DeviceChannel>> updateChannelMap = new HashMap<>();
        for (MobilePosition mobilePosition : mobilePositions) {
            DeviceChannel deviceChannel = new DeviceChannel();
            deviceChannel.setId(mobilePosition.getChannelId());
            deviceChannel.setDeviceId(mobilePosition.getDeviceId());
            deviceChannel.setLongitude(mobilePosition.getLongitude());
            deviceChannel.setLatitude(mobilePosition.getLatitude());
            deviceChannel.setGpsTime(mobilePosition.getTime());
            deviceChannel.setUpdateTime(DateUtil.getNow());
            if (mobilePosition.getLongitude() > 0 || mobilePosition.getLatitude() > 0) {
                Double[] wgs84Position = Coordtransform.GCJ02ToWGS84(mobilePosition.getLongitude(), mobilePosition.getLatitude());
                deviceChannel.setGbLongitude(wgs84Position[0]);
                deviceChannel.setGbLatitude(wgs84Position[1]);
            }
            if (!updateChannelMap.containsKey(mobilePosition.getDeviceId())) {
                updateChannelMap.put(mobilePosition.getDeviceId(), new HashMap<>());
            }
            updateChannelMap.get(mobilePosition.getDeviceId()).put(mobilePosition.getChannelId(), deviceChannel);
        }
        List<String> deviceIds = new ArrayList<>(updateChannelMap.keySet());
        if (deviceIds.isEmpty()) {
            log.info("[移动位置订阅]为查询到对应的设备，消息已经忽略");
            return;
        }
        List<Device> deviceList = deviceMapper.queryByDeviceIds(deviceIds);
        for (Device device : deviceList) {
            Map<Integer, DeviceChannel> channelMap = updateChannelMap.get(device.getDeviceId());
            if (device.getGeoCoordSys().equalsIgnoreCase("GCJ02")) {
                channelMap.values().forEach(channel -> {
                    Double[] wgs84Position = Coordtransform.GCJ02ToWGS84(channel.getLongitude(), channel.getLatitude());
                    channel.setGbLongitude(wgs84Position[0]);
                    channel.setGbLatitude(wgs84Position[1]);
                });
            }
            channelMapper.batchUpdatePosition(new ArrayList<>(channelMap.values()));
        }
    }

}
