using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace HPSocketCS.Extended
{
    /// <summary>
    /// SQL指令请求处理类
    /// </summary>
   public class HP_SQLHelper
    {
       public HP_SQLHelper() { 
       
       }

       public static SerSqlParameter[] ToSerSqlParameter(params System.Data.SqlClient.SqlParameter[] cmdParms)
       {
         return  IDataParameterToSerSqlParameter(cmdParms);
       }
       public static SerSqlParameter[] IDataParameterToSerSqlParameter(params System.Data.IDataParameter[] cmdParms)
       {
           List<SerSqlParameter> serSqlParameterList = new List<SerSqlParameter>();
           if (cmdParms != null)
           {
               foreach (System.Data.SqlClient.SqlParameter par in cmdParms)
               {
                   serSqlParameterList.Add(new SerSqlParameter(par));
               }
           }
           return serSqlParameterList.ToArray();
       }
       /// <summary>
       /// 设置输出参数的值
       /// </summary>
       /// <param name="cmdParms">用户提交的参数集合</param>
       /// <param name="serSqlParameterList">执行后返回的参数集合</param>
       public static void SetOutputSqlParameter(System.Data.IDataParameter[] cmdParms, List<SerSqlParameter> serSqlParameterList)
       {
           foreach (SerSqlParameter spar in serSqlParameterList)
           {
               foreach (System.Data.SqlClient.SqlParameter par in cmdParms)
               {
                   if (spar.ParaName.ToLower() == par.ParameterName.ToLower()) {
                       par.Value = spar.ParaVal;
                       break;
                   }
               }
           }
       }

       static HPSocketCS.TcpPackClient hpClient;
       /// <summary>
       /// 网络对象 
       /// </summary>
        [Obsolete("此属性只用于“Helper_SQLHelper”类，做数SQL数据传输，请不要在其它地方使用", false)]
       public static HPSocketCS.TcpPackClient HpClient
       {
           get { return hpClient; }
           set { hpClient = value; }
       }

        /// <summary>
       /// 发送SQL数据库请求命令到服务器并返回请求结果
       /// </summary>
       /// <param name="requestData">请求的SQL命令数据类</param>
       /// <param name="millisecondsTimeout"></param>
       /// <returns></returns>
       [Obsolete("此方法只用于“Helper_SQLHelper”类，做数SQL数据传输，请不要在其它地方使用", false)]
       public static HPSocketCS.Extended.SQLHelperReturnData HP_SendSqlCommandToServer(HPSocketCS.Extended.SQLHelperRequestData requestData, int millisecondsTimeout = 1000*90)
       {

           return HP_SQLHelper.HP_SendSqlCommandToServer(HP_SQLHelper.HpClient,requestData, millisecondsTimeout);
       }

    


       /// <summary>
       /// 发送SQL数据库请求命令到服务器并返回请求结果
       /// </summary>
       /// <param name="requestData">请求的SQL命令数据类</param>
       /// <param name="millisecondsTimeout"></param>
       /// <returns></returns>
       public static HPSocketCS.Extended.SQLHelperReturnData HP_SendSqlCommandToServer(HPSocketCS.TcpPackClient _Client,HPSocketCS.Extended.SQLHelperRequestData requestData, int millisecondsTimeout = 1000*90)
       {
           HPSocketCS.Extended.SQLHelperReturnData retData = null;
           if (_Client.State == ServiceState.Stoped || _Client.State == ServiceState.Stoping)
           {
               _Client.Connetion();
               System.Threading.Thread.Sleep(1000);
           }
           if (_Client.State == ServiceState.Started)
           {
               try
               {
                   byte[] tempSendBuffer = HPSocketCS.Extended.DataSetSerializerDeserialize.ObjectSerializerCompressionRetBytes(requestData);
                   using (System.IO.MemoryStream retMstream = _Client.AutoUnpackingSendAndReturnResult(tempSendBuffer, HPSocketCS.Extended.DataType.SQLHelper, HPSocketCS.Extended.TransferRequestCommand.SQLHelperData, millisecondsTimeout))
                   {
                       if (retMstream != null && retMstream.Length > 0)
                       {
                           retData = (HPSocketCS.Extended.SQLHelperReturnData)HPSocketCS.Extended.DataSetSerializerDeserialize.ObjectDeserializeDecompress(retMstream.GetBuffer());
                           retData.DataSize = retMstream.Length;
                       }
                       if (retMstream != null)
                       {
                           retMstream.Close();
                       }
                   }
               }
               catch (Exception ex)
               {
                   retData = new HPSocketCS.Extended.SQLHelperReturnData("SQL请求处理出错：" + ex.Message);
               }

           }
           else
           {
               return new SQLHelperReturnData("SQL指令时失败，未连接到服器或网络连接已断开，请检查网络环境。");
           }
          
           return retData;
       }

    }
}