using System;
using System.Threading;
using System.Collections.Concurrent;

using Sog.Service;
using Sog;
using ProtoCSStruct;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.IO;

namespace PlayerOp
{
    public class ExchangeSaveData
    {
        public int type;    //  0 新增, 1 修改
        public ExchangeConfigure Config;
    }

    public class ExchangeSvc : BaseReloadableService
    {
        private ExchangeCodeManager m_exchangeManger;

        //每次最大加载数
        private const int Max_Load_Count = 100;

        private ConcurrentQueue<StructPacketData> m_dbThreadPacketQueue;

        public static Object m_locker = new Object();

        private ExchangeCodeStrcut emptyExchangeCode = new ExchangeCodeStrcut
        {
            m_objectID = -1
        };

        public override int GetServiceType()
        {
            return PlayerOpServiceType.ExchangeSvc;
        }

        public override void Dispose()
        {
           
        }

        public ExchangeSvc()
        {
            m_exchangeManger = new ExchangeCodeManager();
            m_dbThreadPacketQueue = new ConcurrentQueue<StructPacketData>(); 
        }

        public ExchangeCodeManager GetExchangeCodeManager()
        {
            return m_exchangeManger;
        }

        public void OnTick(long nowSec, long nowMs)
        {
            DoMsgTick();
            m_exchangeManger.OnTickSaveCode(nowMs);
        }

        public bool IsAllDataSave()
        {
            var data = PlayerOpServerData.GetExchangeCodeCache();
            return data.m_codeIdMap.Count == 0;
        }

        public bool IsAllReqHandle()
        {
            return m_dbThreadPacketQueue.IsEmpty;
        }

        public void OnExchangeCodeTakeReq(uint serverID, StructPacket packet)
        {
            ref SSExchangeCodeTakeReq req = ref packet.GetMessage<SSExchangeCodeTakeReq>();
 
            string code = req.Code.GetString();
            code = code.Replace(" ", "");

            TraceLog.Debug("ExchangeSvc.OnExchangeCodeTakeReq - Code:{0} - uid:{1}", code, req.Uid);

            var data = PlayerOpServerData.GetExchangeCodeCache().m_uidCodeMap;
            if(data.ContainsKey(code))
            {
                if(data[code] == req.Uid)
                {
                    SSExchangeCodeTakeRes res = new SSExchangeCodeTakeRes();
                    res.CodeId = req.CodeId;
                    res.Ret = (int)CSErrCode.ExchangeCodeReceived;
                    PlayerOpServerUtils.GetPacketSender().SendToServerByID(serverID, (int)SSGameMsgID.ExchangeCodeTakeRes, ref res, packet.ObjectID, packet.Header.ServerID);
                    TraceLog.Error("ExchangeSvc.OnExchangeCodeTakeReq error - Code:{0}, uid:{1}", req.Code.GetString(), req.Uid);
                    return;
                }
            }

            // 到DB查询判定
            StructPacket dbPacket = new StructPacket();
            dbPacket.Header.Type = (int)SSGameMsgID.ExchangeRecordQueryDbReq;
            dbPacket.Header.ServerID = packet.Header.ServerID;
            dbPacket.Header.ObjectID = packet.ObjectID;
            StructMessageParser<SSExchangeRecordQueryDbReq> parser = new StructMessageParser<SSExchangeRecordQueryDbReq>();
            dbPacket.Parser = parser;
            ref SSExchangeRecordQueryDbReq dbReq = ref dbPacket.GetMessage<SSExchangeRecordQueryDbReq>();
            dbReq.CodeId = 0;
            dbReq.Code.SetString(code);
            dbReq.GroupId = 0;
            dbReq.Index = 0;
            dbReq.Uid = req.Uid;

            PlayerOpMsgHandler.AddMessageTaskDistributor(serverID, dbPacket);
        }

        public void OnExchangeRecordQueryDbRes(uint serverID, StructPacket packet)
        {
            ref SSExchangeRecordQueryDbRes req = ref packet.GetMessage<SSExchangeRecordQueryDbRes>();

            SSExchangeCodeTakeRes res = new SSExchangeCodeTakeRes();
            res.CodeId = req.CodeId;
            res.GroupId = req.GroupId;
            if (req.Ret != 0)
            {
                res.Ret = req.Ret;
                PlayerOpServerUtils.GetPacketSender().SendToServerByID(serverID, (int)SSGameMsgID.ExchangeCodeTakeRes
                    , ref res, packet.ObjectID, packet.Header.ServerID);
                return;
            }

            // 这里有问题 暂时拿掉验证
            //var data = PlayerOpServerData.GetExchangeCodeCache().m_uidCodeMap;
            //data.Add(req.Code.GetString(), req.Uid);

            for (int i = 0; i < req.Content.AddGoods.Count; i++)
            {
                ref var it = ref req.Content.AddGoods[i];
                res.RewardList.Add(ref it);
            }
            
            for (int i = 0; i < req.Content.Groups.Count; i++)
            {
                var group = req.Content.Groups[i];
                if (res.GroupId != group.GroupId)
                {
                    continue;
                }
                for (int j = 0; j < group.AddGoods.Count; j++)
                {
                    ref var it = ref group.AddGoods[j];
                    res.RewardList.Add(ref it);
                }
            }

            PlayerOpServerUtils.GetPacketSender().SendToServerByID(serverID, (int)SSGameMsgID.ExchangeCodeTakeRes
                    , ref res, packet.ObjectID, packet.Header.ServerID);
        }

        public void OnExchangeQueryDbRes(uint serverID, StructPacket packet)
        {
            ref SSExchangeCodeQueryDbRes res = ref packet.GetMessage<SSExchangeCodeQueryDbRes>();

            PlayerOpServerUtils.GetPacketSender().SendToServerByID(serverID, (int)SSGameMsgID.ExchangeQueryDbRes
                    , ref res, packet.ObjectID, packet.Header.ServerID);
        }

        public void OnExchangeSaveDbRes(uint serverID, StructPacket packet)
        {
            ref SSExchangeCodeSaveDbRes res = ref packet.GetMessage<SSExchangeCodeSaveDbRes>();

            PlayerOpServerUtils.GetPacketSender().SendToServerByID(serverID, (int)SSGameMsgID.ExchangeSaveDbRes
                   , ref res, packet.ObjectID, packet.Header.ServerID);
        }

        public void OnExchangeChangeStatusDbRes(uint serverID, StructPacket packet)
        {
            ref SSExchangeStatusChangeRes res = ref packet.GetMessage<SSExchangeStatusChangeRes>();

            PlayerOpServerUtils.GetPacketSender().SendToServerByID(serverID, (int)SSGameMsgID.ExchangeStatusChangeRes
                   , ref res, packet.ObjectID, packet.Header.ServerID);
        }

        private void DoMsgTick()
        {
            int handleCount = 0;

            // 每次 tick 后在主线程处理
            while (!m_dbThreadPacketQueue.IsEmpty)
            {
                if (handleCount++ > 100)
                {
                    break;
                }
                StructPacketData packetData;
                bool bDequeueSuccess = m_dbThreadPacketQueue.TryDequeue(out packetData);
                if (bDequeueSuccess)
                {
                    try
                    {
                        switch (packetData.Packet.MsgID)
                        {
                            case (int)SSGameMsgID.ExchangeRecordQueryDbRes:
                                OnExchangeRecordQueryDbRes(packetData.RemoteApp, packetData.Packet);
                                break;
                            case (int)SSGameMsgID.ExchangeSaveDbRes:
                                OnExchangeSaveDbRes(packetData.RemoteApp, packetData.Packet);
                                break;
                            case (int)SSGameMsgID.ExchangeQueryDbRes:
                                OnExchangeQueryDbRes(packetData.RemoteApp, packetData.Packet);
                                break;
                            case (int)SSGameMsgID.ExchangeStatusChangeRes:
                                OnExchangeChangeStatusDbRes(packetData.RemoteApp, packetData.Packet);
                                break;
                            default:
                                break;
                        }
                    }
                    catch (Exception ex)
                    {
                        TraceLog.Error("ExchangeSvc.DoMsgTick handler packet msgid {0} throw exception!", packetData.Packet.MsgID);
                        TraceLog.Exception(ex);
                    }
                }
            }
        }

        public void AddRequestPacket(uint remoteApp, StructPacket packet)
        {
            m_dbThreadPacketQueue.Enqueue(new StructPacketData(remoteApp, packet));
        }
        
        public void SaveExchangeCodeData(ref ExchangeConfigure one, uint reqId)
        {
            TraceLog.Trace("ExchangeSvc.SaveExchangeCodeData reqId {0}", reqId);

            StructPacket dbPacket = new StructPacket();
            dbPacket.Header.Type = (int)SSGameMsgID.ExchangeSaveDbReq;
            StructMessageParser<SSExchangeCodeSaveDbReq> parser = new StructMessageParser<SSExchangeCodeSaveDbReq>();
            dbPacket.Parser = parser;
            ref SSExchangeCodeSaveDbReq dbReq = ref dbPacket.GetMessage<SSExchangeCodeSaveDbReq>();
            dbReq.Data.CopyFrom(ref one);
            dbReq.Seq = reqId;
            PlayerOpMsgHandler.AddMessageTaskDistributor(0, dbPacket);
        }

        public bool CodeCheck(string code, int maxLen, int minLen)
        {
            string pattern = @"^[a-zA-Z0-9]*$";
            if(code.Length <= minLen | code.Length >= maxLen)
            {
                return false;
            }
            if(!Regex.IsMatch(code, pattern))
            {
                return false;
            }

            return true;
        }

        public bool CreateGroupCode(ref ExchangeConfigure Config)
        {
            int seed = (int)PlayerOpServerUtils.GetTimeSecond();
            var codeManger = PlayerOpServerUtils.GetExchangeSvc().GetExchangeCodeManager();

            string exchangeCodePre = Config.ExchangeCode.GetString();
           
            var exchangeCodesTmp = new List<string>();
            for (int i = 0; i < Config.Content.Groups.Count; i++)
            {
                var group = Config.Content.Groups[i];
                int groupId = group.GroupId;
                int groupCodeCount = group.GroupCount;
                // 组兑换码添加到存储队列
                var createCodes = DynamicExchangeSvc.CreateCodes(groupId, groupCodeCount, seed);

                Dictionary<int, string> exchangeCodes = new Dictionary<int, string>();
                foreach (var item in createCodes)
                {
                    string tempCode = exchangeCodePre + item.Value;

                    if (exchangeCodes.ContainsValue(tempCode))
                    {
                        TraceLog.Error("ExchangeSvc.CreateGroupCode CreateCodes error: 激活码错误.");
                        break;
                    }
                    exchangeCodes.Add(item.Key, tempCode);
                    exchangeCodesTmp.Add( tempCode + "," + groupId);
                }
                if (!codeManger.CreateExchangeCodeGroup(groupId, exchangeCodes, exchangeCodePre, Config.Id))
                {
                    return false;
                }
            }
            //先将激活码成功写入本地文件留做备份保存
            string filename = "exchangeCode_" + exchangeCodePre + "_" + Config.Id+ ".csv";
            string fullPath = PlayerOpServerUtils.GetServerConfig().codefliepath + filename;

            try
            {
                WriteCodeToFile(fullPath, exchangeCodesTmp);
            }
            catch (Exception ex)
            {
                TraceLog.Error("ExchangeSvc.CreateGroupCode CreateCodes error: 激活码保存失败. error:{0}", ex.Message);
                return false;
            }

            // 将新增添加到保存队列
            ExchangeSaveData saveData = new ExchangeSaveData()
            {
                type = 0,
                Config = Config
            };

            // 开始tick保存
            PlayerOpServerUtils.GetExchangeSvc().GetExchangeCodeManager().SetIsTick(true);

            return true;
        }

        public bool WriteCodeToFile(string fileName, List<string> content)
        {
            string strContent = "CODE,GROUP"+"\r\n";

            foreach (var item in content)
            {
                strContent = strContent + item + "\r\n";
            }

            if (File.Exists(fileName))
            {
                TraceLog.Error("ExchangeSvc.WriteCodeToFile error: file Exists fileName：{0}", fileName);
                return false;
            }

            try
            {
                File.WriteAllText(fileName, strContent);
            }
            catch (Exception ex)
            {
                TraceLog.Error("ExchangeSvc.WriteCodeToFile error: WriteAllText error : {0}", ex.Message);
                return false;
            }

            return true;
        }
    }
}