///////////////////////////////////////////////////////////
//  Bool.cs
//  Implementation of Class UnitLastServiceWorkorderInfoFetcher
//  CSLA type: Read-only object
//  Created on: 14-Dec-2007
//  Object design: John 
//	Coded: 14-Dec-2007
///////////////////////////////////////////////////////////

using System;
using System.Data;
using CSLA.Data;
using GZTW.Data;
using CSLA;
using System.Threading;
using CSLA.Security;
using System.ComponentModel;



namespace GZTW.AyaNova.BLL
{
    //case 317
    /// <summary>
    ///Gets information about the last closed service workorder a unit was 
    /// serviced on
    /// </summary>
    [Serializable, EditorBrowsable(EditorBrowsableState.Never)]
    internal class UnitLastServiceWorkorderInfoFetcher : ReadOnlyBase
    {

        #region Attributes
        private DateTime mLastServiceDate;
        public DateTime LastServiceDate
        {
            get { return mLastServiceDate; }
          
        }
        
        private int mLastServiceWorkorderNumber=-1;//default meaning info unavailable
        public int LastServiceWorkorderNumber
        {
            get { return mLastServiceWorkorderNumber; }
            
        }
        #endregion

        #region Constructor

        /// <summary>
        /// Private constructor to prevent direct instantiation
        /// </summary>
        private UnitLastServiceWorkorderInfoFetcher()
        {

        }
        #endregion


        #region Static methods




        internal static UnitLastServiceWorkorderInfoFetcher LastServiceInfo(Guid ID)
        {

            return (UnitLastServiceWorkorderInfoFetcher)DataPortal.Fetch(new Criteria(ID));

        }


        #endregion

        #region DAL DATA ACCESS
        /// 
        /// <param Bool="Criteria"></param>
        protected override void DataPortal_Fetch(object Criteria)
        {
            Criteria crit = (Criteria)Criteria;

            SafeDataReader dr = null;
            try
            {
                dr = DBUtil.GetReaderFromSQLString(
                        "SELECT TOP 1 " +
                        "  AWORKORDERITEM.AUNITID, " +
                        "  AWORKORDERSERVICE.ASERVICENUMBER, " +
                        "  AWORKORDERSERVICE.ASERVICEDATE, " +
                        "  AWORKORDER.ASERVICECOMPLETED " +
                        "FROM " +
                        "  AWORKORDERITEM " +
                        "  LEFT OUTER JOIN AWORKORDER ON (AWORKORDERITEM.AWORKORDERID = AWORKORDER.AID) " +
                        "  LEFT OUTER JOIN AWORKORDERSERVICE ON (AWORKORDER.AID = AWORKORDERSERVICE.AWORKORDERID) " +
                        "WHERE ASERVICECOMPLETED=1 and aunitid=@ID " +
                        "ORDER BY ASERVICEDATE DESC ", crit.ID);
                if (dr.Read())
                {
                    mLastServiceDate = DBUtil.ToLocal(dr.GetDateTime("ASERVICEDATE"));
                    mLastServiceWorkorderNumber = dr.GetInt32("ASERVICENUMBER");
                }
            }
            finally
            {
                if (dr != null) dr.Close();
            }


           

        }



        #endregion

        #region criteria
        /// <summary>
        /// Criteria for identifying existing object
        /// </summary>
        [Serializable]
        private class Criteria
        {

            public Guid ID;

            public Criteria(Guid _ID)
            {
                ID = _ID;


            }

        }
        #endregion

    }//end class

}//end namespace GZTW.AyaNova.BLL