using System;
using System.Collections.Generic;
using System.Web;
using System.Data;
using System.Data.Common;
using System.ComponentModel;
using WebLib;

namespace Education
{
  [DataObject]
  public class DAC_站別: DAC
  {
    public DAC_站別()
    { }

    public DAC_站別(DbConnection conn)
      : base(conn)
    { }

    [DataObjectMethod(DataObjectMethodType.Select)]
    public NameValueList SelectForList()
    {
      NameValueList result = new NameValueList();

      DbCommand cmd1 = NewCommand();
      cmd1.CommandText =
        @"SELECT 'A|' + CAST(組織ID AS VARCHAR) AS VALUE, '[部門] ' + 組織名稱 AS NAME FROM 組織圖
          WHERE 上層ID = 1
          UNION ALL
          SELECT 'B|' + BSCLS AS VALUE, '[站別] ' + BSRMK AS NAME FROM BCLS WHERE BSPAR='BPSNBRH'
          ORDER BY VALUE";

      bool wantClose;
      IDataReader reader1 = ExecuteReader(cmd1, out wantClose);
      try
      {
        result.Fill(reader1, 1, 0);
        cmd1.Cancel();
        reader1.Close();
      }
      finally
      {
        cmd1.Dispose();
        reader1.Dispose();
        CloseConnection(wantClose);
      }

      return result;
    }

    [DataObjectMethod(DataObjectMethodType.Select)]
    public NameValueList SelectForDropDown()
    {
      NameValueList result = new NameValueList();
      result.Add("(全部)", "");

      DbCommand cmd = NewCommand();
      cmd.CommandText =
        @"SELECT 'A|' + CAST(組織ID AS VARCHAR) AS VALUE, '[部門] ' + 組織名稱 AS NAME FROM 組織圖
          WHERE 上層ID = 1
          UNION ALL
          SELECT 'B|' + BSCLS AS VALUE, '[站別] ' + BSRMK AS NAME FROM BCLS WHERE BSPAR='BPSNBRH'
          ORDER BY VALUE";

      bool wantClose;
      IDataReader reader = ExecuteReader(cmd, out wantClose);
      try
      {
        result.Fill(reader, 1, 0, false);
        cmd.Cancel();
        reader.Close();
      }
      finally
      {
        cmd.Dispose();
        reader.Dispose();
        CloseConnection(wantClose);
      }

      return result;
    }

    public string GetName(object value)
    {
      if (value == null)
        return "";
      string[] valueParts = DAC.GetString(value).Split('|');
      if (valueParts.Length == 0)
        return "";

      if (valueParts.Length == 1 || valueParts.Length > 1 && valueParts[0] == "B")
      {
        DbCommand cmd = NewCommand();
        cmd.CommandText = @"SELECT BSRMK FROM BCLS WHERE BSPAR='BPSNBRH' AND BSCLS=@BSCLS";
        if (valueParts.Length == 1)
          AddParam(cmd, "BSCLS", valueParts[0]);
        if (valueParts.Length > 1)
          AddParam(cmd, "BSCLS", valueParts[1]);
        string result;
        ExecuteScalar(cmd, out result);
        return result;
      }
      else if (valueParts.Length > 1 && valueParts[0] == "A")
      {
        DbCommand cmd = NewCommand();
        cmd.CommandText = @"SELECT 組織名稱 FROM 組織圖 WHERE 組織ID=@組織ID";
        AddParam(cmd, "組織ID", valueParts[1]);
        string result;
        ExecuteScalar(cmd, out result);
        return result;
      }
      else
        return "";
    }
  }
}