/*
 Sog 游戏基础库
 2016 by zouwei
 */

using System;
using System.Collections.Generic;

using Sog;
using Sog.Gate;

using ProtoCSStruct;

namespace Version
{
    public class VersionMsgHandler
    {
        private ServerApp m_app;

        private VersionSvc m_versionSvc;

        private static VersionMsgHandler _instatnce;

        public VersionMsgHandler(ServerApp app)
        {
            m_app = app;

            m_versionSvc = new VersionSvc(app);

            _instatnce = this;

        }

        public static VersionMsgHandler GetInstance()
        {
            return _instatnce;
        }



        public VersionSvc GetVersionSvcObj()
        {
            return m_versionSvc;
        }

        public ServerApp GetApp()
        {
            return m_app;
        }

        public void Dispose()
        {
            m_app = null;
            m_versionSvc.Dispose();
            m_versionSvc = null;
        }


        public void HandlerMessage(uint remoteAppID, MessageData message)
        {
            int iServerType = ServerIDUtils.GetServerType(remoteAppID);

            if (iServerType == (int)ServerType.VersionGate)
            {
                TraceLog.Trace("VersionMsgHandler.HandlerMessage recv msg from gate length {0}", message.Header.Length);
                HandlerGateMessage(remoteAppID, message);
                return;
            }
            else
            {
                TraceLog.Trace("VersionMsgHandler.HandlerMessage recv msg from server type {0} length {1}", iServerType, message.Header.Length);
                HandlerOtherServerMessage(remoteAppID, message);
                return;
            }
        }

        private void HandlerGateMessage(uint remoteAppID, MessageData message)
        {
            GateMsgHeader header = new GateMsgHeader();
            GateMsgHeaderPacker.UnPack(message.Buffer.Data, ref header);

            // trans msg to client
            if (header.OpCode == (int)GateMsgOpCode.Trans)
            {
                HandlerClientGateMessage(remoteAppID, message);
                return;
            }

            if (header.OpCode == (int)GateMsgOpCode.ConnectedReq)
            {
                GateClientConnectedReq req = GateClientConnectedReq.ParseFrom(message.Buffer.Data, GateMsgHeaderPacker.GetLength());
                OnSessionConnected(remoteAppID, header.SessionID, req);
                return;
            }

            if (header.OpCode == (int)GateMsgOpCode.DisconnectedReq)
            {
                OnSessionDisconnected(remoteAppID, header.SessionID);
                return;
            }

            //int headLength = GateMsgHeaderPacker.GetLength();

        }

        private void OnSessionConnected(uint gateServerID, long sessionID, GateClientConnectedReq req)
        {
            TraceLog.Trace("VersionMsgHandler.OnSessionConnected session {0} ip {1} connected, new PlayerSession", sessionID, req.IPAddress);

            //回应
            GateMsgHeader gateHeader;

            gateHeader.OpCode = (int)GateMsgOpCode.ConnectedRes;
            gateHeader.SessionID = sessionID;

            GateService.NotifyGateServer(m_app, gateServerID, ref gateHeader);

            m_versionSvc.AddClientConnectData(gateServerID, sessionID, req.IPAddress);

        }

        private void OnSessionDisconnected(uint gateServerID, long sessionID)
        {
            TraceLog.Debug("VersionMsgHandler.OnSessionDisconnected session {0} disconnected, delete PlayerSession"
                , sessionID);
            m_versionSvc.RemoveClientConnectData(gateServerID, sessionID);
            
        }

        private void HandlerClientGateMessage(uint gateServerID, MessageData gateMessage)
        {
            long sessionID = gateMessage.Header.ObjectID;

            int headLength = GateMsgHeaderPacker.GetLength();

            MessageData message = new MessageData();
            message.Header.Type = gateMessage.Header.Type;
            message.Header.Length = gateMessage.Header.Length - headLength;

            if (message.Header.Length < 0)
            {
                TraceLog.Trace("VersionMsgHandler.HandlerClientGateMessage recv session {0} message ,gateMessage length error ", sessionID);
                return;
            }

            message.MallocData(message.Header.Length);
            //message.Data = new byte[message.Header.Length];
            Buffer.BlockCopy(gateMessage.Buffer.Data, headLength, message.Buffer.Data, 0, message.Buffer.Length);
            try
            {
                HandlerClientMessage(gateServerID, sessionID, message);
            }
            finally
            {
                message.FreeData();
            }


        }


        private void HandlerClientMessage(uint gateServerID, long sessionID, MessageData message)
        {
            try
            {
                StructPacket packet = null;
                bool result = false;
                try
                {
                    result = VersionServerUtils.GetProtoPacker().UnpackMessage(message, out packet);
                }
                catch (Exception ex)
                {
                    TraceLog.Error("VersionMsgHandler.HandlerClientMessage type {0} UnpackMessage error {1}"
                        , message.Header.Type, ex.Message);
                    return;
                }

                //bool result = VersionServerUtils.GetProtoPacker().UnpackMessage(message, out packet);
                if (result)
                {
                    //预先判断，提高效率
                    if (TraceLog.GetLogLevel() <= (int)Sog.Log.LogLevel.TraceDetail
                        && TraceLog.IsSkipLogMsgID(packet.MsgID) == false)
                    {
                        // log message
                        TraceLog.TraceDetail("VersionMsgHandler.HandlerClientMessage recv from session {0} from gateServer {1}, message type {2} length {3} : {4}->{5}"
                            , sessionID
                            , ServerIDUtils.IDToString(gateServerID)
                            , message.Header.Type
                            , message.Header.Length
                            , packet.MessageName()
                            , packet.ToString());
                    }


                    ProcessClientPacket(gateServerID, sessionID, packet);
                }
            }
            catch (Exception ex)
            {
                TraceLog.Error("VersionMsgHandler.HandlerClientMessage Received from session:{0} error:{1}", sessionID, ex.Message);
                //TraceLog.Exception(ex);
                throw;
            }
        }



        private void HandlerOtherServerMessage(uint remoteAppID, MessageData message)
        {

            try
            {
                StructPacket packet;
                bool result = VersionServerUtils.GetProtoPacker().UnpackMessage(message, out packet);
                if (result)
                {
                    if (TraceLog.GetLogLevel() <= (int)Sog.Log.LogLevel.TraceDetail
                        && TraceLog.IsSkipLogMsgID(packet.MsgID) == false)
                    {
                        // log message
                        TraceLog.TraceDetail("VersionMsgHandler.HandlerOtherServerMessage recv message from server {0}, message type {1} length {2} : {3}->{4}"
                            , ServerIDUtils.IDToString(remoteAppID)
                            , message.Header.Type
                            , message.Header.Length
                            , packet.MessageName()
                            , packet.ToString());
                    }


                    ProcessServerPacket(remoteAppID, packet);
                }
            }
            catch (Exception ex)
            {
                TraceLog.Error("VersionMsgHandler.HandlerOtherServerMessage Received from server:{0} error:{1}", ServerIDUtils.IDToString(remoteAppID), ex.Message);
                //TraceLog.Exception(ex);
                throw;
            }
        }

        private void ProcessClientPacket(uint gateServerID, long sessionID, StructPacket packet)
        {
            //来自客户端的消息
            switch (packet.MsgID)
            {
                case (int)CSMsgID.VersionReq:
                    ProcessVersionReq(gateServerID, sessionID, packet);
                    break;
                case (int)CSMsgID.QueryLoginsysnoticeReq:
                    SndSysNotice(gateServerID, sessionID, packet);
                    break;

            }

        }
        /// <summary>
        /// 登录界面公告消息回包
        /// </summary>
        /// <param name="gateServerID"></param>
        /// <param name="sessionID"></param>
        /// <param name="packet"></param>
        public void SndSysNotice(uint gateServerID, long sessionID, StructPacket packet)
        {
            ref var req = ref packet.GetMessage<CSSysLoginNoticeReq>();
            ClientConnectInfo clientInfo = m_versionSvc.GetClientConnData(sessionID);
            if (clientInfo == null)
            {
                TraceLog.Error("VersionMsgHandler.SndSysNotice no clientInfo. session {0}", sessionID);
                return;
            }

            VersionBillUtils.LogLoginNotice(req.DeviceId.ToString(), clientInfo.ip);

            CSSysLoginNoticeRes res = new CSSysLoginNoticeRes();

            string strReqLang = req.Language.GetString().ToLower();
            // 什么语言都可以
            bool ignoreLang = string.IsNullOrEmpty(strReqLang);

            int nowSec = (int)VersionServerUtils.GetTimeSecond();
            List<SysNoticeData> list = VersionServerUtils.GetVersionServerData().m_NoticeData;
            foreach (var item in list)
            {
                // 不在有效时间内
                if ((item.m_startTime > 0 && nowSec < item.m_startTime) 
                    || (item.m_endTime > 0 && nowSec > item.m_endTime))
                {
                    continue;
                }

                string noticeLang = item.language.ToLower();
                if (! ignoreLang && noticeLang != strReqLang)
                {
                    continue;
                }

                CSSysLoginNotice Notice = new CSSysLoginNotice();
                Notice.Id = item.id;
                Notice.Title.SetString(item.title);
                Notice.Content.SetString(item.content);
                Notice.Sort = item.sort;
                Notice.StartTime = item.m_startTime;
                Notice.Pic.SetString(item.pic);
                Notice.Aotupop = item.aotupop;

                res.NoticeList.Add(ref Notice);
            }

            GateService.SendToGate(0, m_app.GetCluster(), gateServerID, sessionID, (int)CSMsgID.QueryLoginsysnoticeRes, ref res);
        }

        private void ProcessVersionReq(uint gateServerID, long sessionID, StructPacket packet)
        {
            ref CSVersionCheckReq req = ref packet.GetMessage<CSVersionCheckReq>();

            ClientConnectInfo clientInfo = m_versionSvc.GetClientConnData(sessionID);
            if (clientInfo == null)
            {
                TraceLog.Error("VersionMsgHandler.ProcessVersionReq no clientInfo. session {0}", sessionID);
                return;
            }

            VersionCheckReqHandler.ProcessVersionReq(gateServerID, clientInfo, ref req);
        }

        private void ProcessServerPacket(uint remoteAppID, StructPacket packet)
        {
            //服务端的消息
            switch (packet.MsgID)
            {
                //接收到OperationServer 公告推送
                case (int)SSGameMsgID.ChatNoticeReq:
                    OnServerSetNotice(remoteAppID, packet);
                    break;
                //OperationServer 删除公告
                case (int)SSGameMsgID.ChatDelNotice:
                    OnDelSysNotice(remoteAppID, packet);
                    break;
                default:
                    TraceLog.Error("VersionMsgHandler.ProcessServerPacket MsgID {0} not handle", packet.MsgID);
                    break;
            }
        }
        /// <summary>
        /// 删除系统公告
        /// </summary>
        /// <param name="serverID"></param>
        /// <param name="packet"></param>
        public void OnDelSysNotice(uint serverID, StructPacket packet)
        {
            var del = packet.GetMessage<SSSysNoticeDel>();
            var list = VersionServerUtils.GetVersionServerData().m_NoticeData;
            for (int i = list.Count - 1; i >= 0; i--)
            {
                if (list[i].id == del.Id)
                {
                    list.RemoveAt(i);
                    break;
                }
            }
        }
        //添加系统公告
        private void OnServerSetNotice(uint remoteAppID, StructPacket packet)
        {
            ref SSSysNotice req = ref packet.GetMessage<SSSysNotice>();

            SysNoticeServer.AddOneSysNotice(ref req);
        }

        public void UpdateClientConnect()
        {
            var clientConnData = VersionServerUtils.GetVersionServerData().m_ClientConnectDict;

            foreach (KeyValuePair<long, ClientConnectInfo> pair in clientConnData)
            {
                uint gateServerID = pair.Value.uGateServerID;
                long sessionID = pair.Value.iConnectSessionID;
                long iConnectTime = pair.Value.iConnectTime;

                if (AppTime.GetNowSysMs() - iConnectTime >= 10 * 1000)
                {
                    TraceLog.Debug("VersionMsgHandler.UpdateClientConnect TimeOut Disconnect:{0} ", sessionID);

                    GateService.NotifyGateServerDisconnect(GetApp(), gateServerID, sessionID);

                    m_versionSvc.RemoveClientConnectData(gateServerID, sessionID);
                    break;
                }
            }
        }
    }
}