///////////////////////////////////////////////////////////
//  TaskPickList.cs
//  Implementation of Class TaskPickList
//  CSLA type: Read only collection 
//  Created on: 30-Dec-2004  
//  Object design: John  
//  Coded:  30-Dec-2004 
///////////////////////////////////////////////////////////

using System;
using System.Data;
using GZTW.Data;
using CSLA.Data;
using CSLA;

namespace GZTW.AyaNova.BLL 
{
	/// <summary>
	/// Lightweight read only list of <see cref="TaskPickList.TaskPickListInfo"/> objects representing <see cref="Task"/> objects.
    /// Used for selection in UI and by API business objects internally.
	/// </summary>
	[Serializable]
	public class TaskPickList : ReadOnlyCollectionBase 
	{		
		#region Data structure
		/// <summary>
		///
		/// </summary>
		[Serializable]
		public struct TaskPickListInfo 
		{		
			
			internal Guid mID;
			internal string mName;
			internal bool mActive;
			//internal string mNotes;
			

			//Public properties
            /// <summary>
            /// 
            /// </summary>
			public Guid ID {get{return mID;}}	
	        /// <summary>
	        /// 
	        /// </summary>
			public string Name {get{return mName;}}
            /// <summary>
            /// 
            /// </summary>
			public bool Active {get{return mActive;}}
			//public string Notes {get{return mNotes;}}
			
					
			

			/// <summary>
			///
			/// </summary>
			/// <param name="obj"></param>
			public bool Equals(TaskPickListInfo obj)
			{
				return this.mID.Equals(obj.mID);
			}

		}//end TaskPickListInfo
		#endregion

		#region Constructor
        /// <summary>
        /// 
        /// </summary>
		protected TaskPickList()
		{
			//			AllowSort=false;
			//			AllowFind=true;
			//			AllowEdit=false;
			//			AllowNew=false;
			//			AllowRemove=false;
		}

		#endregion
		
		#region Business properties and methods

		/// <summary>
		/// Get item by index
		/// </summary>
		/// <param name="Item"></param>
		public TaskPickListInfo this[int Item]
		{

			get
			{
				return (TaskPickListInfo) List[Item];
			}
		}


		/// <summary>
		/// Returns TaskPickListInfo item that matches passed in itemid value
		/// </summary>
		/// <param name="ItemID"></param>
		public TaskPickListInfo this[Guid ItemID]
		{

			get
			{
				foreach (TaskPickListInfo child in List)
				{
					if(child.mID==ItemID) return child;
				}
				throw new ArgumentException("TaskPickList: ID not found:\r\n"+ItemID.ToString());
				
			}
		}
		#endregion

		#region contains
		/// <summary>
		/// Check if item in collection
		/// </summary>		
		/// <param name="obj"></param>
		public bool Contains(TaskPickListInfo obj)
		{
			foreach (TaskPickListInfo child in List)
			{
				if(child.Equals(obj)) return true;
			}
			return false;

		}
		#endregion

		#region Static methods
		/// <summary>
		/// Get all tasks
		/// </summary>
        /// <returns>list of <see cref="TaskPickList.TaskPickListInfo"/> objects</returns>	
		public static TaskPickList GetList()
		{
			return (TaskPickList) DataPortal.Fetch(new Criteria());
		}

		#endregion

		#region DAL DATA ACCESS
		/// 
		/// <param name="Criteria"></param>
		protected override void DataPortal_Fetch(object Criteria)
		{	
	
			SafeDataReader dr = null;	
			try
			{			
				dr=DBUtil.GetReaderFromSQLString(
					//************************************************************
					"SELECT aID, AACTIVE, aName FROM aTask"
					//************************************************************
					);			
				
				while(dr.Read()) 
				{
					//*******************************************
					TaskPickListInfo info=new TaskPickListInfo();					
					info.mID=dr.GetGuid("aID");
					info.mActive=dr.GetBoolean("AACTIVE");
					info.mName=dr.GetString("aName");
					InnerList.Add(info);
					//*******************************************
				}
			}
			finally
			{
				if(dr!=null) dr.Close();
			}	
			

		}
		#endregion		

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

						
			//public Guid TaskID;	
			
			public Criteria( )
			{					
				//TaskID=_TaskID;					
				
			}
			
		}
		#endregion
		
	}//end TaskPickList

}//end namespace GZTW.AyaNova.BLL