namespace Easychart.Finance.DataProvider
{
    using Easychart.Finance;
    using System;
    using System.Data;
    using System.Globalization;
    using System.IO;
    using System.Web.UI.WebControls;

    public class DataManagerBase : IDataManager, IDisposable
    {
        private bool changed;
        private bool downloadRealTimeQuote;
        private DateTime endTime;
        private int futureBars;
        private ExchangeIntraday intradayInfo;
        private bool isFix;
        private DateTime startTime;
        private DateTime virtualEndTime;
        private bool virtualFetch;
        private DateTime virtualStartTime;

        protected BoundColumn CreateBoundColumn(string HeaderText, string DataField, string SortExpression, string DataFormatString)
        {
            BoundColumn column = new BoundColumn();
            column.DataField = DataField;
            column.SortExpression = SortExpression;
            column.HeaderText = HeaderText;
            column.DataFormatString = DataFormatString;
            return column;
        }

        protected HyperLinkColumn CreateHyperLinkColumn(string Text, string DataNavigateUrlField, string DataNavigateUrlFormatString)
        {
            HyperLinkColumn column = new HyperLinkColumn();
            column.Text = Text;
            column.DataNavigateUrlField = DataNavigateUrlField;
            column.DataNavigateUrlFormatString = DataNavigateUrlFormatString;
            return column;
        }

        public int DeleteSymbols(string Symbols)
        {
            return this.DeleteSymbols(Symbols.Split(new char[] { ',', ';' }));
        }

        public int DeleteSymbols(string[] Symbols)
        {
            return this.DeleteSymbols("", Symbols, false, true, true);
        }

        public virtual int DeleteSymbols(string Exchange, string[] Symbols, bool Remain, bool DeleteRealtime, bool DeleteHistorical)
        {
            return 0;
        }

        public virtual IDataProvider GetData(string Code, int Count)
        {
            return null;
        }

        public DataTable GetStockList()
        {
            return this.GetStockList(null, null, null);
        }

        public DataTable GetStockList(string Exchange, string ConditionId, string Key)
        {
            return this.GetStockList(Exchange, ConditionId, Key, "", 0, 0x7fffffff);
        }

        public virtual DataTable GetStockList(string Exchange, string ConditionId, string Key, string Sort, int StartRecords, int MaxRecords)
        {
            return null;
        }

        public DataTable GetSymbolList()
        {
            return this.GetSymbolList(null, null, null);
        }

        public DataTable GetSymbolList(string Exchange, string ConditionId, string Key)
        {
            return this.GetSymbolList(Exchange, ConditionId, Key, "", 0, 0x7fffffff);
        }

        public virtual DataTable GetSymbolList(string Exchange, string ConditionId, string Key, string Sort, int StartRecords, int MaxRecords)
        {
            return null;
        }

        public string[] GetSymbolStrings()
        {
            return this.GetSymbolStrings(null, null, null);
        }

        public string[] GetSymbolStrings(string Exchange, string ConditionId, string Key)
        {
            DataTable table = this.GetSymbolList(Exchange, ConditionId, Key);
            string[] strArray = new string[table.Rows.Count];
            for (int i = 0; i < strArray.Length; i++)
            {
                strArray[i] = table.Rows[i][0].ToString();
            }
            return strArray;
        }

        public DataTable RecordRange(DataTable dt, int StartRecords, int MaxRecords)
        {
            for (int i = 0; i < StartRecords; i++)
            {
                dt.Rows.RemoveAt(0);
            }
            while (dt.Rows.Count > MaxRecords)
            {
                dt.Rows.RemoveAt(dt.Rows.Count - 1);
            }
            return dt;
        }

        public void SaveData(string Symbol, IDataProvider idp, bool Intraday)
        {
            this.SaveData(Symbol, idp, null, DateTime.MinValue, DateTime.MaxValue, Intraday);
        }

        public virtual void SaveData(string Symbol, IDataProvider idp, Stream OutStream, DateTime Start, DateTime End, bool Intraday)
        {
        }

        public virtual void SaveSymbolList(string[] ss, out int succ, out int failed)
        {
            succ = 0;
            failed = ss.Length;
        }

        public virtual void SetStrings(CommonDataProvider cdp, string Code)
        {
            cdp.SetStringData("Code", Code);
        }

        public virtual int SymbolCount(string Exchange, string ConditionId, string Key)
        {
            return -1;
        }

        public static DateTime ToDate(object o)
        {
            if (o == DBNull.Value)
            {
                return DateTime.Today;
            }
            return (DateTime)o;
        }

        public static DateTime ToDateDef(string Format, string s, DateTime Def)
        {
            try
            {
                return DateTime.ParseExact(s, Format, DateTimeFormatInfo.InvariantInfo);
            }
            catch
            {
                return Def;
            }
        }

        public static double ToDecimalDouble(object o)
        {
            if (o == DBNull.Value)
            {
                return double.NaN;
            }
            return (double)((decimal)o);
        }

        public static double ToDouble(object o)
        {
            if (o == DBNull.Value)
            {
                return double.NaN;
            }
            return (double)o;
        }

        public static int ToInt(object o)
        {
            if (o == DBNull.Value)
            {
                return 0;
            }
            return (int)o;
        }

        public static long ToInt64(object o)
        {
            if (o == DBNull.Value)
            {
                return 0L;
            }
            return (long)o;
        }

        public static float ToSingle(object o)
        {
            if (o == DBNull.Value)
            {
                return float.NaN;
            }
            return (float)o;
        }

        public virtual CommonDataProvider UpdateEod(string Symbol, CommonDataProvider cdpDelta)
        {
            CommonDataProvider idp = (CommonDataProvider)this[Symbol];
            idp.Merge(cdpDelta);
            this.SaveData(Symbol, idp, false);
            return idp;
        }

        public bool Changed
        {
            get
            {
                return this.changed;
            }
            set
            {
                this.changed = value;
            }
        }

        public bool DownloadRealTimeQuote
        {
            get
            {
                return this.downloadRealTimeQuote;
            }
            set
            {
                this.downloadRealTimeQuote = value;
                this.changed = true;
            }
        }

        public DateTime EndTime
        {
            get
            {
                return this.endTime;
            }
            set
            {
                this.endTime = value;
                this.changed = true;
            }
        }

        public virtual DataTable Exchanges
        {
            get
            {
                return null;
            }
        }

        public int FutureBars
        {
            get
            {
                return this.futureBars;
            }
            set
            {
                this.futureBars = value;
                this.changed = true;
            }
        }

        public ExchangeIntraday IntradayInfo
        {
            get
            {
                return this.intradayInfo;
            }
            set
            {
                this.intradayInfo = value;
                this.changed = true;
            }
        }

        public bool IsFix
        {
            get
            {
                return this.isFix;
            }
            set
            {
                this.isFix = value;
                this.changed = true;
            }
        }

        public virtual IDataProvider this[string Code]
        {
            get
            {
                return this[Code, DataPacket.MaxValue];
            }
        }

        public virtual IDataProvider this[string Code, int Count]
        {
            get
            {
                IDataProvider data = this.GetData(Code, Count);
                if (data is CommonDataProvider)
                {
                    (data as CommonDataProvider).FutureBars = this.futureBars;
                }
                return data;
            }
        }

        public DateTime StartTime
        {
            get
            {
                return this.startTime;
            }
            set
            {
                this.startTime = value;
                this.changed = true;
            }
        }

        public virtual DataGridColumn[] StockListColumns
        {
            get
            {
                return null;
            }
        }

        public DateTime VirtualEndTime
        {
            get
            {
                return this.virtualEndTime;
            }
            set
            {
                this.virtualEndTime = value;
            }
        }

        public bool VirtualFetch
        {
            get
            {
                return this.virtualFetch;
            }
            set
            {
                this.virtualFetch = value;
            }
        }

        public DateTime VirtualStartTime
        {
            get
            {
                return this.virtualStartTime;
            }
            set
            {
                this.virtualStartTime = value;
            }
        }

        /// <summary>
        /// 执行与释放或重置非托管资源相关的应用程序定义的任务。
        /// </summary>
        public void Dispose()
        {
            if (intradayInfo != null) intradayInfo.Dispose();
            intradayInfo = null;
        }
    }
}