using System;
using System.Collections.Generic;
using System.Linq;
using System.Timers;
using System.Web;
using Newtonsoft.Json;
using SysBaseLibs;
using SysDataLibs.TableClass;
using SysSecLibs;

namespace GSMarketSys
{
    public class MajorGoodsSourcePuller : IDisposable
    {
        // 肉类数据
        public class MeatSourceData
        {
            public string CommitDate;           // 供货日期
            public string CommitCorp;           // 供货单位名称
            public string EnterCorp;            // 市场名称
            public string BossName;             // 经营户名称
            public string EnterNum;             // 进货数量
            public string QuarNum;              // 检疫证号
            public string Unit;                 // 进货数量单位
            public string BossRegNo;            // 经营户的工商注册号
            public string MarketRegNo;          // 市场的工商注册号
            public string QuarantineUnit;       // 检疫单位名称
        }

        // 神码接口和工商系统之间的市场注册号映射
        public class MarketMapData
        {
            public string MarketID;             // 工商系统中的市场工商注册号
            public string PlatMarketID;         // 接口的市场工商注册号
            public int MarketTypeId;            // 市场类型
            public string PlatMarketName;       // 接口的市场名称
        }

        private Timer _TimerMeatSrc = null;
        private Timer _TimerVegSrc = null;
        private List<MarketMapData> _listMarketMeatSrc = new List<MarketMapData>();
        private DateTime _LastStockTimeMeatSrc = new DateTime(2030, 1, 1);
        int _IntervalMeatSrc = 20;
        private string _MktMapFile = "";
        private string _LastStkTimeFile = "";

        private MajorGoodsSourcePuller()
        {
            _TimerMeatSrc = new Timer();
            _TimerMeatSrc.AutoReset = true;         // 是否重复触发
            _TimerMeatSrc.Enabled = false;          // 另外用Start()启动
            _TimerMeatSrc.Interval = 20 * 60000;    // 20分钟
            _TimerMeatSrc.Elapsed += new ElapsedEventHandler(_Timer_Elapsed_MeatSrc);
        }

        private void InitConfigMeatSrc()
        {
            try
            {
                // 时间间隔(分钟)
                _IntervalMeatSrc = SysDataLibs.AppEnv.SysSetObj.GetInt("MeatSourceInterval");
                if (_IntervalMeatSrc <= 0 || _IntervalMeatSrc > 60)
                    _IntervalMeatSrc = 20;
                // 重新设置
                _TimerMeatSrc.Interval = _IntervalMeatSrc * 60000;

                /*string strPath = AppDomain.CurrentDomain.BaseDirectory;
                // 注意bin目录下的文件修改时会导致Application_End,所以不能放在bin目录下
                strPath += "ISipPlat\\";
                _MktMapFile = strPath + "MeatSrcMktMap.xml";
                _LastStkTimeFile = strPath + "MeatSrcStkTime.txt";*/
            }
            catch (Exception)
            {
            }
        }
        #region IDisposable 成员

        public void Dispose()
        {
            if (_TimerMeatSrc != null)
            {
                _TimerMeatSrc.Close();
                _TimerMeatSrc.Dispose();
            }
        }
        #endregion

        // 单键模式
        private static MajorGoodsSourcePuller _Instance = null;
        public static MajorGoodsSourcePuller Instance
        {
            get
            {
                if (_Instance == null)
                {
                    _Instance = new MajorGoodsSourcePuller();
                }
                return _Instance;
            }
        }

        public void Start()
        {
            // 肉类数据
            StartPullMeatSrc();
        }

        // 启动
        public bool StartPullMeatSrc()
        {
            if (_TimerMeatSrc.Enabled == true)
            {
                return true;
            }

            bool bRet = false;
            try
            {
                InitConfigMeatSrc();

                // 启动
                _TimerMeatSrc.Start();
                bRet = true;

                if (_IntervalMeatSrc >= 10)
                {
                    // 先调用一次,否则需要等待_IntervalMeatSrc分钟才会触发
                    PullDataMeatSrc();
                }
            }
            catch (Exception)
            {
                bRet = false;
            }

            return bRet;
        }

        public void Stop()
        {
            // 肉类数据
            StopPullMeatSrc();
        }

        // 停止
        public bool StopPullMeatSrc()
        {
            if (_TimerMeatSrc.Enabled == false)
            {
                return true;
            }

            bool bRet = false;
            try
            {
                _TimerMeatSrc.Stop();
                bRet = true;
                ThreadLog.LogInfo("[PullDataMeatSrc] Stopping... ");
            }
            catch (Exception)
            {
                bRet = false;
            }

            return bRet;
        }

        // 肉类来源数据Timer触发
        private void _Timer_Elapsed_MeatSrc(object sender, ElapsedEventArgs e)
        {
            try
            {
                PullDataMeatSrc();
            }
            catch (Exception)
            {
            }
        }
        // 抓取肉类来源数据
        private void PullDataMeatSrc()
        {
            DBConnSql loConn = null;
            string strMsg = string.Empty;
            int nMajorGoodsTypeID = 2;

            try
            {
                loConn = new DBConnSql();
                //loConn.OnlyExec = false;
                //loConn.OnDBConnectionAction += new evDBConnectionAction(loConn_OnDBConnectionAction);
                if (loConn.Open() == false)
                {
                    throw new Exception("[PullDataMeatSrc] DBConnSql open failed");
                }

                // 加载市场名称映射
                LoadMarketMapFromDB(loConn, nMajorGoodsTypeID, ref _listMarketMeatSrc);
                if (_listMarketMeatSrc.Count < 1)
                {
                    throw new Exception("[PullDataMeatSrc] MarketMap is empty");
                }

                // 获取最后更新时间
                string strTemp = LoadLastStockTimeFromDB(loConn, nMajorGoodsTypeID);
                if (strTemp != "")
                {
                    strMsg = "[PullDataMeatSrc] LoadLastStockTimeFromDB ok, start from " + strTemp;
                    ThreadLog.LogInfo(strMsg);
                    _LastStockTimeMeatSrc = DateTime.Parse(strTemp);
                }
                else
                {
                    strMsg = "[PullDataMeatSrc] LoadLastStockTimeFromDB failed, start from current time";
                    ThreadLog.LogInfo(strMsg);

                    // 如果读取不到，缺省从当前时间开始查询
                    _LastStockTimeMeatSrc = DateTime.Now;
                }

                // 查询条件
                List<nsPlatDataQuery.Condition> queryConList = new List<nsPlatDataQuery.Condition>();
                nsPlatDataQuery.Condition queryCon = new nsPlatDataQuery.Condition();
                queryCon.FieldName = "CommitDate";
                queryCon.BeginLeftTag = 0;
                nsPlatDataQuery.QueryOperate queryOpr = new nsPlatDataQuery.QueryOperate();
                queryOpr.FieldType = 1; //datetime
                                        // 因没有>比较符，只能将时间＋1秒，避免取到重复数据
                DateTime timeAfter = _LastStockTimeMeatSrc.AddSeconds(1);
                queryOpr.FieldValue = timeAfter.ToString("yyyy-MM-dd HH:mm:ss"); //"2012-08-01 15:8:9";
                queryOpr.OptTag = 4; // >=
                queryCon.Operate = queryOpr;
                queryCon.EndRightTag = 0;
                queryCon.LogicJoin = 0;
                queryConList.Add(queryCon);

                // 调用接口
                string strRet = ISipPlatHelper.QueryMeatSource(queryConList);

                //string strRet = @"{table:[{'CommitDate':'2012-8-10 8:15:08','CommitCorp':'苏州市太湖牧业有限责任公司','EnterCorp':'苏州工业园区荷韵市场管理服务有限公司','BossName':'罗士元','EnterNum':'50','QuarNum':'3208055244','Unit':'公斤'},{'CommitDate':'2012-8-10 8:13:06','CommitCorp':'苏州市吴中食品有限公司生猪定点屠宰场','EnterCorp':'苏州工业园区荷韵市场管理服务有限公司','BossName':'吴惠根','EnterNum':'50','QuarNum':'3203701577','Unit':'公斤'},{'CommitDate':'2012-8-10 8:11:43','CommitCorp':'友联批发市场','EnterCorp':'苏州工业园区荷韵市场管理服务有限公司','BossName':'尤大男','EnterNum':'50','QuarNum':'3203701577','Unit':'公斤'}]}";
                List<MeatSourceData> listRet = DeserializeDataMeatSrc(strRet);
                if ((listRet != null) && (listRet.Count > 0))
                {
                    foreach (MeatSourceData info in listRet)
                    {
                        // 检查数据格式
                        if (ValidateDataMeatSrc(info) == true)
                        {
                            // CommitDate和EnterNum已经在ValidateDataMeatSrc中通过检查,不必再AreaToSQL
                            info.CommitDate = info.CommitDate.Trim();
                            info.CommitCorp = SysBaseLibs.Utils.AreaToSQL(info.CommitCorp).Trim();
                            info.EnterCorp = SysBaseLibs.Utils.AreaToSQL(info.EnterCorp).Trim();
                            info.BossName = SysBaseLibs.Utils.AreaToSQL(info.BossName).Trim();
                            info.EnterNum = info.EnterNum.Trim();
                            info.BossRegNo = SysBaseLibs.Utils.AreaToSQL(info.BossRegNo).Trim();
                            info.Unit = SysBaseLibs.Utils.AreaToSQL(info.Unit).Trim();
                            info.QuarantineUnit = SysBaseLibs.Utils.AreaToSQL(info.QuarantineUnit).Trim();
                            info.MarketRegNo = SysBaseLibs.Utils.AreaToSQL(info.MarketRegNo).Trim();

                            if (info.QuarNum != null)
                                info.QuarNum = SysBaseLibs.Utils.AreaToSQL(info.QuarNum).Trim();
                            else
                                info.QuarNum = "";

                            // 处理当前记录
                            ProcessRecordMeatSrc(info, loConn);
                        }
                        else
                        {
                            strMsg = "[PullDataMeatSrc] Invalid data," + DumpDataDetailMeatSrc(info);
                            ThreadLog.LogErr(strMsg);
                        }
                    }//for
                }
            }
            catch (Exception err)
            {
                ThreadLog.LogException(err);
            }
            finally
            {
                if (loConn != null && loConn.IsOpened)
                    loConn.Close();
            }
        }

        void loConn_OnDBConnectionAction(string pcCommand, string pcMessage)
        {
            ThreadLog.LogInfo("Command: " + pcCommand + " \r\n Message" + pcMessage);
        }
        // 从数据库加载市场注册码映射表
        private void LoadMarketMapFromDB(DBConnSql loConn, int nMajorGoodsTypeID, ref List<MarketMapData> ListMarket)
        {
            ListMarket.Clear();

            try
            {
                string strSql = "SELECT PlatMarketID, PlatMarketName, " + Markets_info.cMarketTypeID;
                strSql += ", " + Tn.Markets + "." + Markets_info.cMarketID + " as MarketID ";
                strSql += " FROM MajorGoodsSrcMarketMap AS a," + Tn.Markets + " WHERE a.MarketID=" + Tn.Markets + "." + Markets_info.cMarketID;
                strSql += " AND MajorGoodsTypeID=" + nMajorGoodsTypeID + " AND " + Markets_info.cIsLock + "=0";

                rsQuery loQuery = loConn.OpenQuery(strSql);
                if (loQuery != null && loQuery.IsOpened && loQuery.RecCount > 0)
                {
                    loQuery.MoveFirst();

                    for (int i = 0; i < loQuery.RecCount; i++)
                    {
                        MarketMapData info = new MarketMapData();
                        info.MarketID = loQuery.GetString(Markets_info.cMarketID).Trim();
                        info.PlatMarketName = loQuery.GetString("PlatMarketName").Trim();
                        info.PlatMarketID = loQuery.GetString("PlatMarketID").Trim();
                        info.MarketTypeId = loQuery.GetInt(Markets_info.cMarketTypeID);

                        ListMarket.Add(info);

                        loQuery.MoveNext();
                    }
                }
            }
            catch (Exception err)
            {
                ThreadLog.LogErr("[PullDataMeatSrc] Failed to load LoadMarketMapFromDB, Reason=" + err.Message);
            }
        }
        // 检查肉类数据格式
        private bool ValidateDataMeatSrc(MeatSourceData info)
        {
            bool bRet = true;

            try
            {
                // 错误时间格式会抛出异常
                DateTime.Parse(info.CommitDate);

                // 错误数值格式也会抛出异常
                double dTotal = Convert.ToDouble(info.EnterNum);
                if (dTotal <= 0.0)
                    bRet = false;

                if ((info.CommitCorp == null) || (info.CommitCorp == ""))
                    return false;

                if ((info.EnterCorp == null) || (info.EnterCorp == ""))
                    return false;

                if ((info.BossName == null) || (info.BossName == ""))
                    return false;

                // 检疫证号QuarNum暂时允许为空

                if ((info.Unit == null) || (info.Unit == ""))
                    return false;

                if ((info.BossRegNo == null) || (info.BossRegNo == ""))
                    return false;

                if ((info.MarketRegNo == null) || (info.MarketRegNo == ""))
                    return false;

                if ((info.QuarantineUnit == null) || (info.QuarantineUnit == ""))
                    return false;
            }
            catch (Exception)
            {
                bRet = false;
            }

            return bRet;
        }
        // 处理单条肉菜商品来源数据
        private void ProcessRecordMeatSrc(MeatSourceData info, DBConnSql loConn)
        {
            bool bRet = false;

            try
            {
                string strMsg = string.Empty;
                string strMarketID = "";
                int nMajorGoodsTypeID = 2;

                // 匹配市场注册号
                bool bMarketID = GetMarketIdMeatSrc(info, ref strMarketID, ref nMajorGoodsTypeID);
                if (bMarketID == false)
                {
                    strMsg = "[PullDataMeatSrc] EnterCorp no match," + DumpDataDetailMeatSrc(info);
                    ThreadLog.LogErr(strMsg);
                    return;
                }

                // 匹配经营户
                int nSellerID = GetSellerID(strMarketID, info, loConn);
                if (nSellerID <= 0)
                {
                    strMsg = "[PullDataMeatSrc] BossName no match," + DumpDataDetailMeatSrc(info);
                    ThreadLog.LogErr(strMsg);
                    return;
                }

                // 匹配供应商信息
                int nSupplierID = GetSupplierID(info.CommitCorp, loConn);
                if (nSupplierID <= 0)
                {
                    // 增加供应商信息
                    bRet = AddSupplier(info.CommitCorp, loConn);
                    if (bRet == true)
                    {
                        // 插入后查询SupplierID
                        nSupplierID = GetSupplierID(info.CommitCorp, loConn);
                    }
                }

                // 供应商有匹配或者增加供应商成功，则写入数据库
                if (nSupplierID > 0)
                {
                    bool bUpdateLastTime = false;

                    // 查询是否存在
                    bRet = QueryRecordMeatSrc(strMarketID, nSellerID, nSupplierID, info, nMajorGoodsTypeID, loConn);
                    if (bRet == true)
                    {
                        bUpdateLastTime = true;
                    }
                    else
                    {
                        bRet = InsertRecordMeatSrc(strMarketID, nSellerID, nSupplierID, info, nMajorGoodsTypeID, loConn);
                        if (bRet == true)
                        {
                            bUpdateLastTime = true;
                        }
                    }

                    // 修改最后更新时间
                    if (bUpdateLastTime)
                    {
                        DateTime lastTime = DateTime.Parse(info.CommitDate);
                        if (lastTime > _LastStockTimeMeatSrc)
                        {
                            _LastStockTimeMeatSrc = lastTime;
                            SaveLastStockTimeToDB(loConn, nMajorGoodsTypeID, info.CommitDate);
                        }
                    }
                }
            }
            catch (Exception err)
            {
                ThreadLog.LogException(err);
            }
        }
        // 匹配市场注册号
        private bool GetMarketIdMeatSrc(MeatSourceData info, ref string strMarketID, ref int nMajorGoodsTypeID)
        {
            bool bRet = false;

            foreach (MarketMapData item in _listMarketMeatSrc)
            {
                // 通过市场注册号进行匹配
                //if (item.PlatMarketName == info.EnterCorp)
                if (item.PlatMarketID == info.MarketRegNo)
                {
                    strMarketID = item.MarketID;

                    // 农贸市场和超市
                    if (item.MarketTypeId == 1)
                        nMajorGoodsTypeID = 2;
                    else if (item.MarketTypeId == 6)
                        nMajorGoodsTypeID = 2;  // 11(农贸市场和超市都用2)

                    bRet = true;
                    break;
                }
            }

            return bRet;
        }
        // 匹配经营户
        private int GetSellerID(string strMarketID, MeatSourceData info, DBConnSql loConn)
        {
            int nSellerID = 0;

            try
            {
                // 先通过工商注册号匹配
                string strSql = "SELECT " + Tn.SellerHasWarrant + "." + SellerHasWarrant_info.cSellerID + " AS SELLERID ";
                strSql += " FROM " + Tn.MarketSellers + "," + Tn.SellerHasWarrant;
                strSql += " WHERE " + Tn.SellerHasWarrant + "." + SellerHasWarrant_info.cSellerID + "=" + Tn.MarketSellers + "." + MarketSellers_info.cSellerID;
                strSql += " AND " + SellerHasWarrant_info.cWarrantTypeID + "=4 AND " + SellerHasWarrant_info.cWarrantNumber + "='" + info.BossRegNo + "' ";
                strSql += " AND " + Tn.MarketSellers + "." + MarketSellers_info.cMarketID + "='" + strMarketID + "' ";
                strSql += " AND " + MarketSellers_info.cIsLock + "='N'";
                rsQuery loQuery = loConn.OpenQuery(strSql);
                if (loQuery != null && loQuery.IsOpened && loQuery.RecCount > 0)
                {
                    nSellerID = loQuery.GetInt(MarketSellers_info.cSellerID);
                }

                // 工商注册号无匹配, 再通过经营户名称匹配
                if (nSellerID <= 0)
                {
                    string strSqlName = "SELECT " + MarketSellers_info.cSellerID + " FROM " + Tn.MarketSellers;
                    strSqlName += " WHERE " + MarketSellers_info.cMarketID + "='" + strMarketID + "' AND " + MarketSellers_info.cName + "='" + info.BossName + "'";
                    strSqlName += " AND " + MarketSellers_info.cIsLock + "='N'";

                    rsQuery loQuery2 = loConn.OpenQuery(strSqlName);
                    if (loQuery2 != null && loQuery2.IsOpened && loQuery2.RecCount > 0)
                    {
                        nSellerID = loQuery2.GetInt(MarketSellers_info.cSellerID);
                    }
                }
            }
            catch (Exception err)
            {
                string strMsg = "[PullDataMeatSrc] GetSellerID exception, Reason=" + err.Message;
                ThreadLog.LogErr(strMsg);
            }

            return nSellerID;
        }

        // 匹配供应商信息
        private int GetSupplierID(string strSupplier, DBConnSql loConn)
        {
            int nSupplierID = 0;

            try
            {
                string strSql = "SELECT " + Suppliers_info.cSupplierID + " FROM " + Tn.Suppliers;
                strSql += " WHERE " + Suppliers_info.cName + "='" + strSupplier + "'";

                rsQuery loQuery = loConn.OpenQuery(strSql);
                if (loQuery != null && loQuery.IsOpened && loQuery.RecCount > 0)
                {
                    nSupplierID = loQuery.GetInt(Suppliers_info.cSupplierID);
                }
            }
            catch (Exception err)
            {
                ThreadLog.LogException(err);
            }

            return nSupplierID;
        }

        // 增加供应商信息
        private bool AddSupplier(string strSupplier, DBConnSql loConn)
        {
            bool bRet = false;
            string strMsg = string.Empty;

            try
            {
                Suppliers_info supplier = new Suppliers_info();
                supplier.Name = strSupplier;
                supplier.Address = "";
                supplier.Linkman = "";
                supplier.Tel = "";
                supplier.HabitatID = "1010"; // 缺省为江苏            
                supplier.UserID = "admin";

                string strSql = supplier.InsertSql();
                bRet = loConn.ExcuteSqlTran(strSql);
                if (bRet == false)
                {
                    strMsg = "[PullMajorGoodsSrcData] AddSupplier error, SupplierName=" + strSupplier;
                    ThreadLog.LogErr(strMsg);
                }
            }
            catch (Exception err)
            {
                bRet = false;

                strMsg = "[PullMajorGoodsSrcData] AddSupplier error, SupplierName=" + strSupplier + ",Reason=" + err.Message;
                ThreadLog.LogErr(strMsg);
            }

            return bRet;
        }

        // 写入数据库
        private bool InsertRecordMeatSrc(string strMarketID, int nSellerID, int nSupplierID, MeatSourceData info,
            int nMajorGoodsTypeID, DBConnSql loConn)
        {
            bool bRet = false;
            string strMsg = string.Empty;

            try
            {
                MajorGoodsLog_info record = new MajorGoodsLog_info();
                record.MarketID = strMarketID;
                record.SellerID = nSellerID.ToString();
                record.MajorGoodsTypeID = nMajorGoodsTypeID.ToString(); // 猪肉
                record.SupplierID = nSupplierID.ToString();
                record.StockTime = info.CommitDate;
                record.VarietyCategoryNo = "19037";
                record.VarietyCategoryName = "猪肉";
                record.TotalCount = info.EnterNum;
                record.QuarantineUnit = info.QuarantineUnit + "(" + info.QuarNum + ")";
                record.UserID = "MeatSource";       // 用于标示这是自动导入的数据
                record.UpdateTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
                record.UnitID = info.Unit;

                string strSql = record.InsertSql();
                bRet = loConn.ExcuteSqlTran(strSql);
                if (bRet == false)
                {
                    strMsg = "[PullDataMeatSrc] InsertRecordMeatSrc error," + DumpDataDetailMeatSrc(info);
                    ThreadLog.LogErr(strMsg);
                }
            }
            catch (Exception err)
            {
                bRet = false;

                strMsg = "[PullDataMeatSrc] InsertRecordMeatSrc error," + DumpDataDetailMeatSrc(info) + ",Reason=" + err.Message;
                ThreadLog.LogErr(strMsg);
            }

            return bRet;
        }
        // 查询数据库，避免重复写入
        private bool QueryRecordMeatSrc(string strMarketID, int nSellerID, int nSupplierID,
            MeatSourceData info, int nMajorGoodsTypeID, DBConnSql loConn)
        {
            bool bRet = false;
            string strMsg = string.Empty;

            try
            {
                string strSql = "SELECT COUNT(*) AS TotalCount FROM " + Tn.MajorGoodsLog;
                strSql += " WHERE " + MajorGoodsLog_info.cMarketID + "='" + strMarketID + "'";
                strSql += " AND " + MajorGoodsLog_info.cSellerID + "=" + nSellerID;
                strSql += " AND " + MajorGoodsLog_info.cMajorGoodsTypeID + "=" + nMajorGoodsTypeID;
                strSql += " AND " + MajorGoodsLog_info.cSupplierID + "=" + nSupplierID;
                // 注意StockTime为smalldatetime类型
                strSql += " AND " + MajorGoodsLog_info.cStockTime + "=CAST('" + info.CommitDate + "' as smalldatetime) ";
                strSql += " AND " + MajorGoodsLog_info.cTotalCount + "=" + info.EnterNum;
                // QuarantineUnit是接口中两个字段(检疫单位名称+检疫证)拼接起来的,不能直接比较;其他字段如UnitID等暂时不用来进行比较

                rsQuery loQuery = loConn.OpenQuery(strSql);
                if (loQuery != null && loQuery.IsOpened && loQuery.RecCount > 0)
                {
                    int nTotal = loQuery.GetInt("TotalCount");
                    if (nTotal > 0)
                        bRet = true;
                }
            }
            catch (Exception err)
            {
                bRet = false;

                strMsg = "[PullDataMeatSrc] QueryRecordMeatSrc error," + DumpDataDetailMeatSrc(info) + ",Reason=" + err.Message;
                ThreadLog.LogErr(strMsg);
            }

            return bRet;
        }

        private string DumpDataDetailMeatSrc(MeatSourceData info)
        {
            string strRet = "CommitDate=" + info.CommitDate + ",CommitCorp=" + info.CommitCorp + ",EnterCorp=" + info.EnterCorp;
            strRet += ",BossName=" + info.BossName + ",EnterNum=" + info.EnterNum + ",QuarNum=" + info.QuarNum + ",Unit=" + info.Unit;
            strRet += ",BossRegNo=" + info.BossRegNo + ",MarketRegNo=" + info.MarketRegNo + ",QuarantineUnit=" + info.QuarantineUnit;

            return strRet;
        }

        // 将原始的json数据反序列化
        private List<MeatSourceData> DeserializeDataMeatSrc(string strSource)
        {
            List<MeatSourceData> result = null;

            try
            {
                string strHead = "{table:[";
                string strTail = "]}";
                int nHead = strSource.IndexOf(strHead);
                if (nHead < 0)
                    return null;
                int nTail = strSource.LastIndexOf(strTail);
                if (nTail < 0)
                    return null;

                // 取最左边[ 和 最右边]之间的字符串
                int nLen = nTail - 6;
                if (nLen < 1)
                    return null;

                string strData = strSource.Substring(7, nLen);
                result = JsonConvert.DeserializeObject<List<MeatSourceData>>(strData);
            }
            catch (Exception err)
            {
                ThreadLog.LogErr(err.Message);
            }

            return result;
        }

        #region 配置文件读取，现已经改成数据库方式

        // 加载 市场代码-市场名称 对照表
        private void LoadMarketNameMap()
        {
            /*
            string strConfigData = 
                @"<marketmaps>
                    <record>
                        <MarketID>10001</MarketID>
                        <MarketTypeId>1</MarketTypeId>
                        <Name>吴淞农贸</Name>
                    </record>
                    <record>
                        <MarketID>10002</MarketID>
                        <MarketTypeId>1</MarketTypeId>
                        <Name>胜浦农贸</Name>
                    </record>
                </marketmaps>";
            */

            _listMarketMeatSrc.Clear();
            try
            {
                string strConfigData = FileFuns.ReadFileAsString(_MktMapFile);

                rsXmlNode loMainNode = rsXmlNode.ParseGenericXml(strConfigData);
                if (loMainNode != null && loMainNode.Nodes.Count > 0)
                {
                    foreach (rsXmlNode loNode in loMainNode.Nodes)
                    {
                        if (loNode != null && loNode.Nodes.Count > 0)
                        {
                            MarketMapData info = new MarketMapData();
                            info.MarketID = loNode.GetChildValue("MarketID").Trim();
                            info.PlatMarketName = loNode.GetChildValue("Name").Trim();
                            info.MarketTypeId = Convert.ToInt32(loNode.GetChildValue("MarketTypeId").Trim());

                            _listMarketMeatSrc.Add(info);
                        }
                    }
                }
            }
            catch (Exception err)
            {
                ThreadLog.LogErr("[PullMajorGoodsSrcData] Failed to load MarketNameMap, Reason=" + err.Message);
            }
        }

        private string LoadLastStockTime()
        {
            string strRet = string.Empty;

            try
            {
                string strTemp = FileFuns.ReadFileAsString(_LastStkTimeFile);
                if (strTemp != "")
                {
                    DateTime result = DateTime.Parse(strTemp);
                    strRet = strTemp;
                }
            }
            catch (Exception err)
            {
                strRet = "";
                ThreadLog.LogException(err);
            }

            return strRet;
        }

        // 修改最后更新时间
        private void SaveLastStockTime(string strTime)
        {
            try
            {
                DateTime lastTime = DateTime.Parse(strTime);
                if (lastTime > _LastStockTimeMeatSrc)
                {
                    _LastStockTimeMeatSrc = lastTime;
                    FileFuns.WriteStringToFile(strTime, _LastStkTimeFile);
                    ThreadLog.LogInfo("Update LastStockTime " + _LastStockTimeMeatSrc.ToString());
                }
            }
            catch (Exception err)
            {
                ThreadLog.LogErr("[PullMajorGoodsSrcData] SaveLastStockTime failed, Reason=" + err.Message);
            }
        }

        #endregion

        // 从数据库读取最新商品来源时间
        private string LoadLastStockTimeFromDB(DBConnSql loConn, int nMajorGoodsTypeID)
        {
            string strRet = string.Empty;

            try
            {
                string strSql = "SELECT StockTime FROM MajorGoodsSrcStockTime WHERE MajorGoodsTypeID=" + nMajorGoodsTypeID;

                rsQuery loQuery = loConn.OpenQuery(strSql);
                if (loQuery != null && loQuery.IsOpened && loQuery.RecCount > 0)
                {
                    strRet = loQuery.GetString("StockTime");
                }
            }
            catch (Exception err)
            {
                strRet = "";
                ThreadLog.LogException(err);
            }

            return strRet;
        }

        // 将最新商品来源时间写入数据库
        private void SaveLastStockTimeToDB(DBConnSql loConn, int nMajorGoodsTypeID, string strTime)
        {
            string strMsg = string.Empty;

            try
            {
                // 插入还是更新
                int nTotalCount = 0;
                string strSql = "SELECT COUNT(*) AS TotalCnt FROM MajorGoodsSrcStockTime WHERE MajorGoodsTypeID=" + nMajorGoodsTypeID;
                rsQuery loQuery = loConn.OpenQuery(strSql);
                if (loQuery != null && loQuery.IsOpened && loQuery.RecCount > 0)
                {
                    nTotalCount = loQuery.GetInt("TotalCnt");
                }

                // 数据库更新或者插入
                string strSqlCmd = "Update MajorGoodsSrcStockTime Set StockTime='" + strTime + "' WHERE MajorGoodsTypeID=" + nMajorGoodsTypeID;
                if (nTotalCount <= 0)
                    strSqlCmd = "Insert into MajorGoodsSrcStockTime (MajorGoodsTypeID, StockTime) values (" + nMajorGoodsTypeID + ",'" + strTime + "')";
                bool bRet = loConn.ExcuteSqlTran(strSqlCmd);
                if (bRet == false)
                {
                    strMsg = "[PullMajorGoodsSrcData] SaveLastStockTimeToDB failed, Time=" + strTime + ", MajorGoodsType=" + nMajorGoodsTypeID.ToString();
                    ThreadLog.LogInfo(strMsg);
                }
            }
            catch (Exception err)
            {
                strMsg = "[PullMajorGoodsSrcData] SaveLastStockTimeToDB failed, Time=" + strTime + ", MajorGoodsType=" + nMajorGoodsTypeID.ToString();
                strMsg += ",Reason=" + err.Message;
                ThreadLog.LogInfo(strMsg);
            }
        }
    }
}