using System;
using System.Data;
using IwbZero.IwbBase;
using IwbZero.ToolCommon.StringModel;

namespace IwbZero.IwbDataQuery
{
    public class IwbDataColumn : IwbDataRow, IIwbId
    {
        private IwbIdName _IdName;
        private IwbDataType _iwbDataType;
       

        //public IwbDataColumn(npSession poSession)
        //{
        //    _Session = poSession;
        //}

     

        public override bool Equals(object poSource)
        {
            bool flag = false;
            if (poSource is IwbDataColumn)
            {
                flag = ((IwbDataColumn)poSource).ColumnId.UAndT() == ColumnId.UAndT();
            }
            return flag;
        }

        public string GetDisplayString(string pcStandardValue)
        {
            //if (Formator != null)
            //{
            //    return Formator.ConvertFromStandard(pcStandardValue);
            //}
            if (IwbDataType != null)
            {
                return IwbDataType.TranslateValue(pcStandardValue);
            }
            return pcStandardValue;
        }

        public override int GetHashCode()
        {
            return ColumnId.GetHashCode();
        }

        public bool loadFromTableById(DataTable dt, string pcColumnId)
        {
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                if (dt.Rows[i][cn.ColumnId].ToString().Trim().ToUpper() == pcColumnId.Trim().ToUpper())
                {
                   loadFromTable(dt, i);
                    return true;
                }
            }
            return false;
        }

        public override string ToString()
        {
            return ColumnName;
        }

        public string CharacterType =>GetString(cn.CharacterType);

        public string ColumnDesc =>GetString(cn.ColumnDesc);
       
        public string ColumnId =>GetString(cn.ColumnId);

        public string ColumnName =>GetString(cn.ColumnName);

        public int ColumnNumber =>GetInt(cn.ColumnNumber);

        public string DataType =>GetString(cn.DataType);

       
        

        public string Id
        {
            get => ColumnId;
            set
            { 
            }
        }

        public IwbIdName IdName
        {
            get
            {
                if ((_IdName != null) && (_IdName.Id.UAndT() != ColumnId.UAndT()))
                {
                    _IdName = null;
                }
                if (_IdName != null) return _IdName;
                _IdName = new IwbIdName(ColumnId, ColumnName);
                return _IdName;
            }
        }

        

        public IwbDataType IwbDataType => _iwbDataType ?? (_iwbDataType = new IwbDataType(DataType));

        public static string GetBaseColumn(string pcFieldName)
        {
            string str = pcFieldName;
            int index = pcFieldName.IndexOf("__", StringComparison.Ordinal);
            if (index >= 0)
            {
                str = pcFieldName.Substring(index + 2).Trim();
            }
            return str;
        }
    }


    public class cn
    {
        public static string CharacterType = "CharacterType";
        public static string ChildFields = "ChildFields";
        public static string ChildTable = "ChildTable";
        public static string ClassType = "ClassType";
        public static string ColumnDesc = "ColumnDesc";
        //public static string ColumnFormat = "ColumnFormat";
        public static string ColumnId = "ColumnId";
        public static string ColumnName = "ColumnName";
        public static string ColumnNumber = "ColumnNumber";
        public static string ColumnOrder = "ColumnOrder";
        public static string ColumnPropName = "ColumnPropName";
        public static string ColumnSecurityType = "ColumnSecurityType";
        public static string ColumnZoom = "ColumnZoom";
        public static string DataSource = "DataSource";
        public static string DataType = "DataType";
        public static string DataViewContent = "DataViewContent";
        public static string DataViewDesc = "DataViewDesc";
        public static string DataViewId = "DataViewId";
        public static string DataViewName = "DataViewName";
    }
}