// This file (WarFoundryStagedLoadingObject.cs) is a part of the IBBoard.WarFoundry.API project and is copyright 2007, 2008, 2009 IBBoard.
//
// The file and the library/program it is in are licensed and distributed, without warranty, under the GNU Affero GPL license, either version 3 of the License or (at your option) any later version. Please see COPYING for more information and the full license.

using System;
using System.IO;
using IBBoard.WarFoundry.API.Factories;

namespace IBBoard.WarFoundry.API.Objects
{	
	public class WarFoundryStagedLoadingObject : WarFoundryLoadedObject, IWarFoundryStagedLoadObject
	{
		private bool isFullyLoaded;
		private bool isLoading;
		private IWarFoundryFactory creatingFactory;
		private FileInfo sourceFile;
		
		protected WarFoundryStagedLoadingObject(IWarFoundryFactory creatingFactory) : this (null, creatingFactory)
		{
		}
				
		protected WarFoundryStagedLoadingObject(string objName, IWarFoundryFactory creatingFactory) : this(null, objName, creatingFactory)
		{
		}
		
		protected WarFoundryStagedLoadingObject(string objId, string objName, IWarFoundryFactory creatingFactory) : base(objId, objName)
		{
			this.creatingFactory = creatingFactory;
			isFullyLoaded = false;
		}	
		
		public FileInfo SourceFile
		{
			get { return sourceFile; }
			set { sourceFile = value; }
		}
		
		public void EnsureFullyLoaded ()
		{
			if (!IsFullyLoaded && !IsLoading)
			{
				if (Factory == null)
				{
					throw new InvalidOperationException("No factory set for partially loaded object with ID "+ID);
				}
				
				Factory.CompleteLoading(this);
			}
		}
		
		public IWarFoundryFactory Factory
		{
			get { return creatingFactory; }
		}
		
		public bool IsFullyLoaded
		{
			get { return isFullyLoaded; }
		}
		
		public bool IsLoading
		{
			get { return isLoading; }
		}
		
		public void SetAsFullyLoaded()
		{
			isLoading = false;
			isFullyLoaded = true;
		}
		
		public void SetAsLoading()
		{
			if (!isFullyLoaded)
			{
				isLoading = true;
			}
		}
	}
}