using StackExchange.Redis;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Admin.NET.Core;
public static class SignalRDockExtensions
{
    /// <summary>
    /// 注入redis底板
    /// </summary>
    /// <param name="services"></param>
    /// <param name="delegateRedisConnectionString"></param>
    /// <exception cref="ArgumentNullException"></exception>
    public static void AddSignalR_RedisDock(this IServiceCollection services, Func<string> delegateRedisConnectionString)
    {
        var RedisConnectionString = delegateRedisConnectionString();
        if (string.IsNullOrEmpty(RedisConnectionString))
        {
            throw new ArgumentNullException(nameof(RedisConnectionString));
        }
        services.AddSignalR(hubOptions =>
        {
            //SignalR 自己的 pinger ,客户端在定义的时间跨度内没有响应，它将触发OnDisconnectedAsync
            hubOptions.KeepAliveInterval = TimeSpan.FromSeconds(5);
        }).AddJsonProtocol()
            .AddMessagePackProtocol()
            // 支持MessagePack
            .AddStackExchangeRedis(options =>
            {
                options.ConnectionFactory = async writer =>
                {

                    var config = new ConfigurationOptions
                    {
                        AbortOnConnectFail = false,
                        // Password = "changeme",
                        ChannelPrefix = "__signalr_",
                    };
                    //config.EndPoints.Add(IPAddress.Loopback, 0);
                    //config.SetDefaultPorts();
                    config.DefaultDatabase = 1;
                    var connection = await ConnectionMultiplexer.ConnectAsync(RedisConnectionString, writer);
                    connection.ConnectionFailed += (_, e) =>
                    {
                        ConsoleDebug.WriteLine("Connection to Redis failed.");
                    };

                    if (connection.IsConnected)
                    {
                        ConsoleDebug.WriteLine("connected to Redis.");
                    }
                    else
                    {
                        ConsoleDebug.WriteLine("Did not connect to Redis");
                    }

                    return connection;
                };
            });
    }
}


//redis查看订阅列表 PUBSUB CHANNELS