using CommonLang.Log;
using CommonLang.Protocol;
using CommonNetwork_ICE.Util;
using CommonServer.Protocol;
using CommonServer.Server;
using CommonServer_ICE.handler;
using CommonServer_ICE.Msg;
using CommonServer_ICE.Session;
using Slice;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace CommonServer_ICE.Server
{
    /// <summary>
    /// ICE的TCP消息委托处理实现类
    /// </summary>
    public sealed class IceTcpServer : IceConnectServer
    {
        private static Logger log = LoggerFactory.GetLogger("IceTcpServer");
        private TcpServerRouter routerAdapter;

        public IceTcpServer(IPackageCodec codec)
            : base(codec)
        {
        }

        /// <summary>
        /// 启动ICE服务器
        /// </summary>
        /// <returns></returns>
        internal override void StartIceServer()
        {
            routerAdapter = new TcpServerRouter(this);
            try
            {
                int result = routerAdapter.main(new string[0], getInitData());
                if (result != 0)
                {
                    throw new Exception("启动失败。");
                }
            }
            catch (Exception e)
            {
                throw e;
            }
        }

        /// <summary>
        /// 获取传输类型
        /// </summary>
        /// <returns></returns>
        internal override int getCommType()
        {
            return Constants.COMM_TYPE_TCP;
        }

        /// <summary>
        /// 初始化ICE TCP参数
        /// </summary>
        /// <returns></returns>
        private Ice.InitializationData getInitData()
        {
            Ice.InitializationData initData = new Ice.InitializationData();
            Ice.Properties props = Ice.Util.createProperties();
            props.setProperty(Constants.TCP_SERVER_INSTANCE_NAME + ".Endpoints", "tcp -h " + getServerConfig().Ip + " -p " + getServerConfig().Port);
            initData.properties = props;
            return initData;
        }

        /// <summary>
        /// 返回会话总数量
        /// </summary>
        public override int SessionCount
        {
            get { return TcpSessionManager.getSessionCount(); }
        }

        /// <summary>
        /// 会话管理器
        /// </summary>
        internal TcpSessionManager TcpSessionManager
        {
            private get;
            set;
        }

        //广播消息
        public override void Broadcast(IMessage message)
        {
            List<ISession> sessionList = TcpSessionManager.getAllSession();
            foreach (ISession session in sessionList)
            {
                session.Send(message);
            }
        }

        /// <summary>
        /// 判断某个Session是否存在
        /// </summary>
        /// <param name="session"></param>
        /// <returns></returns>
        public override bool HasSession(ISession session)
        {
            return TcpSessionManager.hasSession(session);
        }

        /// <summary>
        /// 获取单个Session
        /// </summary>
        /// <param name="sessionID"></param>
        /// <returns></returns>
        public override ISession GetSessionByID(string sessionID)
        {
            return TcpSessionManager.getSession(sessionID);
        }

        /// <summary>
        /// 获取所有Session
        /// </summary>
        /// <returns></returns>
        public override IEnumerable<ISession> GetSessions()
        {
            if (TcpSessionManager == null)
            {
                return new List<ISession>();
            }
            return TcpSessionManager.getAllSession();
        }

        /// <summary>
        /// 释放服务器资源
        /// </summary>
        public override void Dispose()
        {
            log.Info("关闭服务器，释放各种资源");
            // 关闭所有Session消息接收通道
            if (TcpSessionManager != null)
            {
                List<ISession> sessionList = TcpSessionManager.getAllSession();
                foreach (ISession session in sessionList)
                {
                    session.Disconnect(true);
                }
            }

            if (routerAdapter != null)
            {
                routerAdapter.Dispose();
            }
            this.serverListener.OnDestory();
        }
    }
}