using System;
using System.Collections.Generic;
using System.Text;
using RabbitMQ.Client;
using RabbitMQ.Client.Events;
using System.Threading;
using Infrastructure.Model;
using Base;
using Common;
using Util;

namespace MySystem
{
    public class RabbitMQClient
    {
        public readonly static RabbitMQClient Instance = new RabbitMQClient();
        string UserName,Password,HostName,VirtualHostName;
        private RabbitMQClient()
        {
            MqSettings mqSettings = new();
            AppSettings.Bind("MqSettings", mqSettings);
            UserName = mqSettings.UserName;
            Password = mqSettings.Password;
            HostName = mqSettings.HostName;
            VirtualHostName = mqSettings.VirtualHostName;
        }

        #region 单对单接收
        public static IConnection _connection;
        public void CreateConn()
        { 
            var factory = new ConnectionFactory()
            {
                UserName = UserName,
                Password = Password,
                AutomaticRecoveryEnabled = true,  //如果connection挂掉是否重新连接
                TopologyRecoveryEnabled = true,  //连接恢复后，连接的交换机，队列等是否一同恢复
                RequestedHeartbeat = TimeSpan.FromMinutes(1),
                VirtualHost = VirtualHostName,
            };
            List<AmqpTcpEndpoint> p = new List<AmqpTcpEndpoint>();
            string[] HostNames = HostName.Split(',');
            foreach (string subHostName in HostNames)
            {
                string[] subHostNameData = subHostName.Split(':');
                p.Add(new AmqpTcpEndpoint(subHostNameData[0], int.Parse(subHostNameData[1])));
            }
            _connection = factory.CreateConnection(p);
        }
        public void StartReceive(string QueueName, string Exchange = "", string RoutingKey = "")
        {
            if (_connection == null)
            {
                CreateConn();
            }
            else if (!_connection.IsOpen)
            {
                CreateConn();
            }
            var channel = _connection.CreateModel();
            channel.QueueBind(QueueName, Exchange, RoutingKey);
            EventingBasicConsumer consumer = new EventingBasicConsumer(channel);
            consumer.Received += (a, e) =>
            {
                // string MsgContent = Encoding.Default.GetString(e.Body.ToArray());
                // Function.WriteLog(DateTime.Now.ToString() + "\n" + MsgContent + "\n\n", "接收mq数据队列");
                // PrizeDo.sendPrize(MsgContent);
                channel.BasicAck(e.DeliveryTag, false); //收到回复后，RabbitMQ会直接在队列中删除这条消息
            };
            channel.BasicConsume(QueueName, false, consumer);
        }
        #endregion

    }
}