using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using SysBaseLibs;

namespace SysDataLibs
{
    public class rsDDColumn
    {

       // private 
        private string _ColumnId = "";
        private string _ColumnName = "";
        private int _Width = 0;
        //private int _ColumnLength = 0;
        private rsDataType _DataType = null;
        private bool _IsAuto = false;
        private bool _IsPrimaryKey = false;
        private bool _isNull = true;
        private DataRow _DataRow=null;
        private string _ColumnDesc = "";
        private string _DefValue = "";
        private bool _IsVisable = false;
        private int _Sequence = -1;
        private string _RelationColumn = "";
        private Dictionary<string,object> _SaveObject = null;
        private string _DisplayValue = "";
        private string _IsSelect = "Y";
        private string _Format = "";

 
        private DBConnSql _DBConn = null;


        public rsDDColumn(DataRow poRow)
        {
            _DataRow = poRow;
            if (_DataRow != null)
            {
                _ColumnId = _DataRow["ColumnId"].ToString().Trim();
                _DataType = new rsDataType(_DataRow["DataType"].ToString());
                _DataType.ColLength = Utils.ValI(_DataRow["CharNum"].ToString());
                _DataType.ColPrecision = Utils.ValI(_DataRow["ColPrecision"].ToString());
                _DataType.ColDecimal = Utils.ValI(_DataRow["ColDecimal"].ToString());
               
                _IsAuto = UtilStr.StrToBool(_DataRow["AutoGen"].ToString());
                _IsPrimaryKey = UtilStr.StrToBool(_DataRow["PrimaryKey"].ToString());
                _isNull = UtilStr.StrToBool(_DataRow["AllowNull"].ToString());
                _ColumnDesc = _DataRow["ColDesc"].ToString();
                if (_DataRow["DefValue"] != null)
                    _DefValue = _DataRow["DefValue"].ToString();
                
                if (_DefValue.Trim().Length == 0)
                    _DefValue = _DataType.DBEmptyValue;

                if (_DataRow["width"] != null)
                    _Width = Utils.ValI(_DataRow["width"].ToString());
               
                if (_DataRow["IsVisable"] != null)
                    _IsVisable = UtilStr.StrToBool(_DataRow["IsVisable"].ToString());
                if (_DataRow["Sequence"] != null)
                    _Sequence = Utils.ValI(_DataRow["Sequence"].ToString());
                if (_DataRow["ColumnName"] != null)
                    _ColumnName = _DataRow["ColumnName"].ToString().Trim();
                if (_DataRow["RelationColumns"] != null)
                    _RelationColumn = _DataRow["RelationColumns"].ToString().Trim();
                if (_DataRow["DisplayValue"] != null)
                    _DisplayValue = _DataRow["DisplayValue"].ToString().Trim();
                if (_DataRow["IsSelect"] != null)
                    _IsSelect = _DataRow["IsSelect"].ToString().Trim();
                if (_DataRow["Format"] != null)
                    _Format = _DataRow["Format"].ToString().Trim();
            }
        }

        public rsDDColumn(string pcColumnId, string pcColumnName, int piWidth,
            int piColumnLength, string pcDataType, bool pbIsAuto, bool pbIsPrimaryKey,bool pbisNull)
        {
            _ColumnId = pcColumnId;
            _ColumnName = pcColumnName;
            _Width = piWidth;
            _DataType.ColLength = piColumnLength;
            _DataType = new rsDataType(pcDataType);
            _IsAuto = pbIsAuto;
            _IsPrimaryKey = pbIsPrimaryKey;
            _isNull = pbisNull;
           
        }

        /// <summary>
        /// 字段名称
        /// </summary>
        public string ColumnName
        {
            get {
                return _ColumnName;
            }
            set { _ColumnName = value; }
        }

        /// <summary>
        /// 字段编号
        /// </summary>
        public string ColumnId
        {
            get
            {
                return _ColumnId;
            }
        }

        /// <summary>
        /// 字段显示宽度
        /// </summary>
        public int Width
        {
            get { return _Width; }
            set { _Width = value; }
        }

        /// <summary>
        /// 字段长度
        /// </summary>
        public int ColumnLength
        {
            get { return _DataType.ColLength; }
        }

        /// <summary>
        /// 字段类型
        /// </summary>
        public rsDataType DataType
        {
            get { return _DataType; }
        }

        /// <summary>
        /// 是否自动增长
        /// </summary>
        public bool IsAuto
        {
            get { return _IsAuto; }
        }
        /// <summary>
        /// 是否是主键
        /// </summary>
        public bool IsPrimaryKey
        {
            get { return _IsPrimaryKey; }
        }
        /// <summary>
        /// 是否可见
        /// </summary>
        public bool IsVisable
        {
            get { return _IsVisable; }
            set { _IsVisable = value; }
        }
        /// <summary>
        /// 是否是数字
        /// </summary>
        public bool IsNum
        {
            get
            {
                return _DataType.IsNumeric;
            }
        }

        /// <summary>
        /// 字段排序
        /// </summary>
        public int Sequence
        {
            get { return _Sequence; }
        }

        /// <summary>
        /// 关联的字段
        /// </summary>
        public string RelationColunm
        {
            get { return _RelationColumn; }
        }
        /// <summary>
        /// 显示的字段 如[[1,男],[0,女]]
        /// </summary>
        public string DisplayValue
        {
            get { return _DisplayValue; }
            set { _DisplayValue = value; }
        }
        /// <summary>
        /// 进行自动拼装sql 语句的时候，该字段是否参与
        /// </summary>
        public string IsSelect
        {
            get { return _IsSelect; }
            set { _IsSelect = value; }
        }
        /// <summary>
        /// 字段数据格式化，主要针对 日期 和 数值
        /// </summary>
        public string Format
        {
            get { return _Format; }
            set { _Format = value; }
        }

        public void putValue(string pcKey, object poValue)
        {
            if (_SaveObject == null)
                _SaveObject = new Dictionary<string, object>();
            if (_SaveObject.ContainsKey(pcKey))
                _SaveObject[pcKey] = poValue;
            else
                _SaveObject.Add(pcKey, poValue);
        }

        public string GetValue(string pcKey)
        {
            string lcRetVal = "";
            object loObj = GetValueObj(pcKey);
            if (loObj != null)
                lcRetVal = loObj.ToString();
            return lcRetVal;
        }

        public object GetValueObj(string pcKey)
        {
            object loRetVal = null;
            if (_SaveObject != null && _SaveObject.ContainsKey(pcKey))
            {
                loRetVal = _SaveObject[pcKey];
            }
            return loRetVal;
        }

        private rsQuery  _RelationTable = null;

        private string _RelationTableId = "";
        private string _RelationColumnId = "";
        private string GetTableId
        {
            get
            {
                if (_RelationTableId == "")
                {
                    if (_RelationColumn != null && _RelationColumn.Trim().Length > 0)
                    {
                        _RelationTableId = DALibs.GetTableId(_RelationColumn);
                    }
                }
                return _RelationTableId;
            }
        }

        private string GetColumnId
        {
            get
            {
                if (_RelationColumnId == "")
                    if (_RelationColumn != null && _RelationColumn.Trim().Length > 0)
                    {
                        _RelationColumnId = DALibs.GetColumnId(_RelationColumn);
                    }
                return _RelationColumnId;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        private Dictionary<string, string> _DisplayValues = null;
        /// <summary>
        /// 获取字段的显示值 比如在表 DisplayValue 定义  [1:男],[2:女] 则 传递 1 返回 男
        /// </summary>
        /// <param name="pcValue"></param>
        /// <returns></returns>
        public string GetDisplayValue(string pcValue)
        {
            string lcRetVal = pcValue;
            if (_DisplayValues == null)
            {
                if (_DisplayValue.Trim().Length > 0)
                {
                    Array loArr = UtilStr.StrToArray(_DisplayValue);
                    if (loArr != null && loArr.Length > 0)
                    {
                        _DisplayValues = new Dictionary<string, string>();
                        foreach (string lcStr in loArr)
                        {
                            Array loArr2 = UtilStr.StrToArrayEx(lcStr, ":");
                            if (loArr2 != null && loArr2.Length == 2)
                            {
                                string lcKey = UtilStr.UAndT(loArr2.GetValue(0).ToString().Trim());
                                if (!_DisplayValues.ContainsKey(lcKey))
                                    _DisplayValues.Add(loArr2.GetValue(0).ToString(), loArr2.GetValue(1).ToString());
                                else
                                    _DisplayValues[lcKey] = loArr2.GetValue(1).ToString();
                            }
                        }
                    }
                }
            }

            if (_DisplayValues != null)
            {
                if (_DisplayValues.ContainsKey(UtilStr.UAndT(pcValue)))
                    lcRetVal = _DisplayValues[UtilStr.UAndT(pcValue)].ToString().Trim();
            }
            return lcRetVal;
        }

        /// <summary>
        /// 想关联字段赋值 比如 该字段 是MarketID 在User表中，要获取相应的MarketName 则 RelationClumn 为 Markets.MarketName
        /// </summary>
        /// <param name="poDbConn"></param>
        public void SetDbConn(DBConnSql  poDbConn)
        {
            if (GetTableId.Trim().Length > 0)
            {
                _DBConn = poDbConn;

                string lcSql = " select " + this.ColumnId + "," + GetColumnId + " from " + GetTableId;
                _RelationTable = _DBConn.OpenQuery(lcSql);
            }
        }

        /// <summary>
        /// 获取关联或真实显示的信息  优先显示 DisplayValue 再显示 RelationValue 
        /// </summary>
        /// <param name="pcValue"></param>
        /// <returns></returns>
        public string DispalyValueTranslate(string pcValue)
        {
            string lcRetVal = pcValue;

            string lcValue = "";
            lcValue = GetDisplayValue(pcValue);
            if (string.IsNullOrEmpty(lcValue))
            {
                lcValue = GetRelationValue(pcValue);
                if (lcValue != pcValue)
                {
                    lcRetVal = lcValue;
                }
            }
            else
            {
                if (lcValue != pcValue)
                {
                    lcRetVal = lcValue;
                }
            }
            return lcRetVal;
        }

        /// <summary>
        /// 获取RelationValue 
        /// </summary>
        /// <param name="pcStr"></param>
        /// <returns></returns>
        public string GetRelationValue(string pcStr)
        {
            string lcRetVal = pcStr;
            if (pcStr.Trim().Length > 0)
            {
                if (_RelationTable != null && _RelationTable.IsOpened)
                {
                    if (_RelationTable.GoToRecordByFieldsAndValues(this.ColumnId, pcStr))
                        lcRetVal = _RelationTable.GetString(GetColumnId);
                }
            }
            return lcRetVal;
        }

        /// <summary>
        /// 判断与当前的字段是否匹配
        /// </summary>
        /// <param name="pcColumnId"></param>
        /// <returns></returns>
        public bool MatchColumnId(string pcColumnId)
        {
            pcColumnId = UtilStr.UAndT(pcColumnId);
            return UtilStr.UAndT(this.ColumnId) == pcColumnId;
        }

        /// <summary>
        /// 获取 字段的对象
        /// </summary>
        /// <param name="poColumns"></param>
        /// <param name="pcColumnId"></param>
        /// <returns></returns>
        public static rsDDColumn GetColumnById(List<rsDDColumn> poColumns, string pcColumnId)
        {
            rsDDColumn loRetVal = null;
            if (poColumns != null && pcColumnId != null)
            {
                pcColumnId=UtilStr.UAndT(pcColumnId);
                foreach (rsDDColumn loCol in poColumns)
                {
                    if (UtilStr.UAndT(loCol.ColumnId) == pcColumnId)
                    {
                        loRetVal = loCol;
                        break;
                    }
                }
            }
            return loRetVal;
        }
    }
}