// 1. 定义接口
using System.Threading.Channels;
namespace Admin.NET.Core.Ai.Interface;  

/// <summary>
/// SSE通道管理接口
/// </summary>
public interface ISseChannelManager
{
    /// <summary>
    /// 注册
    /// </summary>
    ChannelReader<string> Register(long userId);
    /// <summary>
    /// 注销
    /// </summary>
    /// <param name="userId"></param>
    void Unregister(long userId);
    /// <summary>
    /// 发送消息
    /// </summary>
    /// <param name="userId"></param>
    /// <param name="message"></param>
    /// <param name="cancellationToken"></param>
    Task SendMessageAsync(long userId, string message, CancellationToken cancellationToken = default);
}