using System.Threading.Channels;

namespace Admin.NET.Plugin.AiDOP.DataPlatform.Executors;

/// <summary>
/// 出站唤醒信号：入队后 Pulse，由 <see cref="MdpOutboxPushWorker"/> 立即推送；轮询 Job 仅作兜底。
/// </summary>
public sealed class MdpOutboxWakeSignal : ISingleton
{
    private readonly Channel<byte> _channel = Channel.CreateBounded<byte>(new BoundedChannelOptions(1)
    {
        FullMode = BoundedChannelFullMode.DropOldest,
        SingleReader = true,
        SingleWriter = false
    });

    public void Pulse() => _channel.Writer.TryWrite(0);

    public ChannelReader<byte> Reader => _channel.Reader;
}