///////////////////////////////////////////////////////////
//  Bool.cs
//  Implementation of Class WorkorderIDFetcher
//  CSLA type: Read-only object
//  Created on: 24-Oct-2006
//  Object design: John 
//	Coded: John 24-Oct-2006
///////////////////////////////////////////////////////////

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



namespace GZTW.AyaNova.BLL 
{
	/// <summary>
	/// Used to quickly fetch a workorder id
	/// from the database give an descendant object id
    /// Returns Guid.empty on fail
	/// </summary>
	[Serializable]
	public class WorkorderIDFetcher : ReadOnlyBase 
	{

		#region Attributes 		
		private Guid mID;

		#endregion

		#region Constructor	

		/// <summary>
		/// Private constructor to prevent direct instantiation
		/// </summary>
		private WorkorderIDFetcher()
		{			
		
		}
		#endregion

		#region Business properties
		

		/// <summary>
		/// ID of workorder
		/// </summary>
		public Guid ID
		{
			get
			{
				return mID;
			}
			
		}
		
		#endregion

		#region System.Object overrides
        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
		public override string ToString()
		{
			return "WorkorderID:"+mID.ToString();
		}

		

		#endregion

		#region Static methods
		

		

		
        /// <summary>
		/// Fetch existing Workorder ID by related item ID
		/// 
		/// Given a rootobjectType and an ID returns the Guid of
        /// the work order that hosts 
		/// that rootobject type and ID
		/// </summary>
		/// <returns>Workorder</returns>
		/// <param name="_ID">Related objec (child/grandchild etc) Guid</param>
        /// <param name="RootObject">RootObject enum from object in Workorder Hiearchy, i.e. WorkorderItemScheduledUser etc</param>
        /// <example>
        /// The following example shows usage of this method
        /// <code>
        ///   //example travel id
        ///   Guid MyTravelID = new Guid("A46993E7-CB1B-40D6-9EB3-667CC18BBC22");
        ///   
        ///   //Get the workorder ID by relative
        ///   Guid woID=WorkorderIDFetcher.GetWorkorderByRelative(RootObjectTypes.WorkorderItemTravel, MyTravelID);
        ///   
        ///   //Fetch the workorder and display some info from it...
        ///   Workorder w = Workorder.GetItem(woID);
        ///   MessageBox.Show(w.NameAndAddress);
        /// </code></example>
		public static Guid GetWorkorderByRelative(RootObjectTypes RootObject, Guid _ID)
		{
						
            //case 1387 *really* not necessary to do this security check here

            //if(AyaBizUtils.Right("Object.xxWorkorder")>(int)SecurityLevelTypes.NoAccess)
            //{
				return ((WorkorderIDFetcher)DataPortal.Fetch(new Criteria(RootObject,_ID))).ID;
            //}
            //else
            //    throw new System.Security.SecurityException(
            //        string.Format(
            //        LocalizedTextTable.GetLocalizedTextDirect("Error.Security.NotAuthorizedToRetrieve"),
            //        LocalizedTextTable.GetLocalizedTextDirect("O.Workorder")));
		}

		
		#endregion

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

				switch(crit.RootObjectType)
				{
					case RootObjectTypes.Workorder:
						;//Do nothing, we already have the workorder id in crit.ID
						break;
					case RootObjectTypes.WorkorderItem:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT TOP 1 aWorkorderItem.aWorkorderID " +
							"FROM aWorkorderItem WHERE (aWorkorderItem.aID = @ID)"
							,crit.ID));
						break;
					case RootObjectTypes.WorkorderItemLabor:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT TOP 1 aWorkorderItem.aWorkorderID " +
							"FROM aWorkorderItem INNER JOIN aWorkorderItemLabor " +
							"ON aWorkorderItem.aID = aWorkorderItemLabor.aWorkorderItemID " +
							"WHERE (aWorkorderItemLabor.aID " +
							"= @ID)"
							,crit.ID));
						break;
                        //Added:    2-Oct-2006
                        //to support search results display
                    case RootObjectTypes.WorkorderItemMiscExpense:
                        WorkorderIDToFetch = DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
                            "SELECT TOP 1 aWorkorderItem.aWorkorderID " +
                            "FROM aWorkorderItem INNER JOIN aWorkorderItemMiscExpense " +
                            "ON aWorkorderItem.aID = aWorkorderItemMiscExpense.aWorkorderItemID " +
                            "WHERE (aWorkorderItemMiscExpense.aID " +
                            "= @ID)"
                            , crit.ID));
                        break;
					case RootObjectTypes.WorkorderItemTravel:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT TOP 1 aWorkorderItem.aWorkorderID " +
							"FROM aWorkorderItem INNER JOIN aWorkorderItemTravel " +
							"ON aWorkorderItem.aID = aWorkorderItemTravel.aWorkorderItemID " +
							"WHERE (aWorkorderItemTravel.aID " +
							"= @ID)"
							,crit.ID));
						break;
					case RootObjectTypes.WorkorderItemScheduledUser:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT TOP 1 aWorkorderItem.aWorkorderID " +
							"FROM aWorkorderItem INNER JOIN aWorkorderItemScheduledUser " +
							"ON aWorkorderItem.aID = aWorkorderItemScheduledUser.aWorkorderItemID " +
							"WHERE (aWorkorderItemScheduledUser.aID " +
							"= @ID)"
							,crit.ID));	
						break;
					case RootObjectTypes.WorkorderItemOutsideService:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT TOP 1 aWorkorderItem.aWorkorderID " +
							"FROM aWorkorderItem INNER JOIN aWorkorderItemOutsideService " +
							"ON aWorkorderItem.aID = aWorkorderItemOutsideService.aWorkorderItemID " +
							"WHERE (aWorkorderItemOutsideService.aID " +
							"= @ID)"
							,crit.ID));	
						break;
					case RootObjectTypes.WorkorderItemPartRequest:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT TOP 1 aWorkorderItem.aWorkorderID " +
							"FROM aWorkorderItem INNER JOIN aWorkorderItemPartRequest " +
							"ON aWorkorderItem.aID = aWorkorderItemPartRequest.aWorkorderItemID " +
							"WHERE (aWorkorderItemPartRequest.aID " +
							"= @ID)"
							,crit.ID));	
						break;
					case RootObjectTypes.WorkorderItemPart:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT TOP 1 aWorkorderItem.aWorkorderID " +
							"FROM aWorkorderItem INNER JOIN aWorkorderItemPart " +
							"ON aWorkorderItem.aID = aWorkorderItemPart.aWorkorderItemID " +
							"WHERE (aWorkorderItemPart.aID " +
							"= @ID)"
							,crit.ID));	
						break;
					case RootObjectTypes.WorkorderPreventiveMaintenance:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT aWorkorderPreventiveMaintenance.aWorkorderID " +
							"FROM aWorkorderPreventiveMaintenance " +
							"WHERE (aWorkorderPreventiveMaintenance.aID " +
							"= @ID)"
							,crit.ID));	
						break;
					case RootObjectTypes.WorkorderQuote:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT aWorkorderQuote.aWorkorderID " +
							"FROM aWorkorderQuote " +
							"WHERE (aWorkorderQuote.aID " +
							"= @ID)"
							,crit.ID));	
						break;
					case RootObjectTypes.WorkorderService:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT aWorkorderService.aWorkorderID " +
							"FROM aWorkorderService " +
							"WHERE (aWorkorderService.aID " +
							"= @ID)"
							,crit.ID));	
						break;
					case RootObjectTypes.WorkorderItemLoan:
						WorkorderIDToFetch=DBUtil.ToGuid(DBUtil.GetScalarFromSQLString(
							"SELECT TOP 1 aWorkorderItem.aWorkorderID " +
							"FROM aWorkorderItem INNER JOIN aWorkorderItemLoan " +
							"ON aWorkorderItem.aID = aWorkorderItemLoan.aWorkorderItemID " +
							"WHERE (aWorkorderItemLoan.aID " +
							"= @ID)"
							,crit.ID));	
						break;
					default:
						throw new System.NotSupportedException("GetWorkorderByDescendant(" + crit.RootObjectType.ToString() + ") not supported");
				}

                mID = WorkorderIDToFetch;
			
		}

		
		
		#endregion			

        #region criteria
        /// <summary>
        /// Criteria for identifying existing object
        /// </summary>
        [Serializable]
        private class Criteria
        {
            public Guid ID;
            public RootObjectTypes RootObjectType;
            public Criteria(RootObjectTypes _RootObjectType, Guid _ID)
            {
                ID = _ID;
                RootObjectType = _RootObjectType;
            }

        }
        #endregion
		
	}//end Bool

}//end Boolspace GZTW.AyaNova.BLL