package com.fzzy.protocol.bhzn.server;


import com.ld.io.api.HeartbeatProvider;
import com.ld.io.api.IoSession;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

/**
 * 提供心跳信息
 *
 * @author Andy
 */
@Slf4j
@Service
public class BhznGrainV2HeartbeatImpl implements HeartbeatProvider {

    @Override
    public byte[] provide(IoSession session) {

        Long lastBeatTime = BhznGrainV2ServerUtils.getHearBeat(session);

        if (null == lastBeatTime) {
            return null;
        }

        //如果最后一次终端心跳时间距离当前时间大于 终端心跳时间的3次，则判断为离线
        long deTime = System.currentTimeMillis() - lastBeatTime;

        if (deTime > (BhznGrainV2ServerUtils.HEART_BEAT_TIME * 3 * 1000)) {
            log.info("-----------超过{}秒未获取到心跳信息，判定终端离线，踢出连接------------{}-{}", deTime, session.getAddress(), session.getPort());
            session.destroy();
        }
        return null;
    }
}