using Microsoft.Extensions.Logging;
using SlnMesnac.Config;
using StackExchange.Redis;
using System;
using System.Collections.Generic;
using System.Text;

#region << 版 本 注 释 >>
/*--------------------------------------------------------------------
* 版权所有 (c) 2024 WenJY 保留所有权利。
* CLR版本：4.0.30319.42000
* 机器名称：LAPTOP-E0N2L34V
* 命名空间：SlnMesnac.Redis
* 唯一标识：00418016-53c9-4f87-a13f-daa19d656bba
*
* 创建者：WenJY
* 电子邮箱：wenjy@mesnac.com
* 创建时间：2024-04-12 15:15:25
* 版本：V1.0.0
* 描述：
*
*--------------------------------------------------------------------
* 修改人：
* 时间：
* 修改说明：
*
* 版本：V1.0.0
*--------------------------------------------------------------------*/
#endregion << 版 本 注 释 >>
namespace SlnMesnac.Redis
{
    public class RedisHandler
    {
        private ILogger<RedisHandler> _logger;

        private readonly AppConfig _appConfig;

        private readonly ISubscriber _subscriber;

        private readonly ConnectionMultiplexer redis;

        public RedisHandler(AppConfig appConfig, ILogger<RedisHandler> logger)
        {
            _appConfig = appConfig;

            redis = ConnectionMultiplexer.Connect(_appConfig.redisConfig);
            _subscriber = redis.GetSubscriber();
            _logger = logger;
        }



        /// <summary>
        /// 推送消息
        /// </summary>
        /// <param name="channel"></param>
        /// <param name="message"></param>
        public void PublishMessage(string channel, string message)
        {
            long res = _subscriber.Publish(channel, message);

            _logger.LogInformation($"向主题:{channel};推送消息:{message};结果:{res}");
        }

        /// <summary>
        /// 订阅消息
        /// </summary>
        /// <param name="channel"></param>
        /// <param name="onMessageReceived"></param>
        public void SubscribeToChannel(string channel, Action<string, string> onMessageReceived)
        {
            _subscriber.Subscribe(channel, (ch, message) =>
            {
                onMessageReceived(ch, message);
                _logger.LogInformation($"订阅主题:{channel};收到主题:{ch};推送的消息:{message}");
            });
        }

        public void CleanExpiredMessages(string channel)
        {
            var redis = _subscriber.Multiplexer.GetDatabase();
            redis.KeyDelete(channel);
        }

        public void SetValue(string key, string message)
        {
            IDatabase db = redis.GetDatabase(0);
            TimeSpan expiry = TimeSpan.FromSeconds(10);
            db.StringSet(key, message, expiry);
        }
    }
}