using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;

namespace HslCommunication.Core.Net
{

    /// <summary>
    /// 网络会话信息
    /// </summary>
    public class AppSession
    {
        #region Constructor

        /// <summary>
        /// 实例化一个构造方法
        /// </summary>
        public AppSession()
        {
            ClientUniqueID = Guid.NewGuid( ).ToString( "N" );
            HybirdLockSend = new SimpleHybirdLock( );
        }


        #endregion


        /// <summary>
        /// 传输数据的对象
        /// </summary>
        internal Socket WorkSocket { get; set; }

        internal SimpleHybirdLock HybirdLockSend { get; set; }

        /// <summary>
        /// IP地址
        /// </summary>
        public string IpAddress { get; internal set; }
        /// <summary>
        /// 此连接对象连接的远程客户端
        /// </summary>
        public IPEndPoint IpEndPoint { get; internal set; }
        /// <summary>
        /// 远程对象的别名
        /// </summary>
        public string LoginAlias { get; set; }
        /// <summary>
        /// 心跳验证的时间点
        /// </summary>
        public DateTime HeartTime { get; set; } = DateTime.Now;
        /// <summary>
        /// 客户端的类型
        /// </summary>
        public string ClientType { get; set; }
        /// <summary>
        /// 客户端唯一的标识
        /// </summary>
        public string ClientUniqueID { get; private set; }

        /// <summary>
        /// UDP通信中的远程端
        /// </summary>
        internal EndPoint UdpEndPoint = null;


        /// <summary>
        /// 指令头缓存
        /// </summary>
        internal byte[] BytesHead { get; set; } = new byte[HslProtocol.HeadByteLength];
        /// <summary>
        /// 已经接收的指令头长度
        /// </summary>
        internal int AlreadyReceivedHead { get; set; }
        /// <summary>
        /// 数据内容缓存
        /// </summary>
        internal byte[] BytesContent { get; set; }
        /// <summary>
        /// 已经接收的数据内容长度
        /// </summary>
        internal int AlreadyReceivedContent { get; set; }

        /// <summary>
        /// 清除本次的接收内容
        /// </summary>
        internal void Clear( )
        {
            BytesHead = new byte[HslProtocol.HeadByteLength];
            AlreadyReceivedHead = 0;
            BytesContent = null;
            AlreadyReceivedContent = 0;
        }


        #region Object Override

        /// <summary>
        /// 返回表示当前对象的字符串，以IP，端口，客户端名称组成
        /// </summary>
        /// <returns>字符串数据</returns>
        public override string ToString()
        {
            return $"[{IpEndPoint}] [{LoginAlias}]";
        }

        #endregion


    }
}