package com.battery.device.api.model;

import java.time.Instant;

/**
 * 发现结果中的一个通道。
 * {@code lastDataAt} 是来源里最近一次采样行的设备时间；它是"最近是否有新采样行写入"这一条依据的取值，
 * 与设备结束时间或通道水位线列无关。来源不提供该事实时保持为空。
 */
public record DetectedChannel(ChannelIdentity identity, String serverIp, boolean available,
        DetectedDeviceMetadata deviceMetadata, Instant lastDataAt)
{
    public DetectedChannel(ChannelIdentity identity, String serverIp, boolean available)
    {
        this(identity, serverIp, available, DetectedDeviceMetadata.empty(), null);
    }

    public DetectedChannel(ChannelIdentity identity, String serverIp, boolean available,
            DetectedDeviceMetadata deviceMetadata)
    {
        this(identity, serverIp, available, deviceMetadata, null);
    }
}