/*

* Copyright (c) 2004-2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

using System;

using System.Collections;

using SymBuildParsingLib.Utils;

namespace SymBuildParsingLib.Common.Objects

{

	public class SymIncludeDirectory

	{

		#region Constructors & destructor

		public SymIncludeDirectory()

		{

		}

		public SymIncludeDirectory( SymIncludeDirectory aCopy )

		{

		}

		#endregion

		#region API

		public void Add( SymIncludeDefinition aDefinition )

		{

			string location = aDefinition.Location;

			if	( location == String.Empty )

			{

				throw new ArgumentException( "Include location cannot be null when adding to include directory", aDefinition.ToString() );

			}

			if	( iIncludes[ location ] == null )

			{

				iIncludes.Add( location, aDefinition );

			}

		}

		public string ResolveFileName( SymIncludeDefinition aDefinition )

		{

			// First check against the specified type for an exact match...

			string location = aDefinition.Location;

			string ret = FindInSpecifiedIncludeEntries( location, aDefinition.Type );

			if  ( ret == string.Empty )

			{

				// Try the other remaining type

				SymIncludeDefinition.TType type = SymIncludeDefinition.TType.ETypeUser;

				if	( aDefinition.Type == SymIncludeDefinition.TType.ETypeUser )

				{

					type = SymIncludeDefinition.TType.ETypeSystem;

				}

				else

				{

					type = SymIncludeDefinition.TType.ETypeUser;

				}

				ret = FindInSpecifiedIncludeEntries( location, type );

			}

			//

			return ret;

		}

		#endregion

		#region Properties

		#endregion

		#region Internal methods

		private string FindInSpecifiedIncludeEntries( string aFileName, SymIncludeDefinition.TType aType )

		{

			string ret = string.Empty;

			//

			IDictionaryEnumerator enumerator = iIncludes.GetEnumerator();

			while ( enumerator.MoveNext() )

			{

				SymIncludeDefinition include = (SymIncludeDefinition) enumerator.Value;

				//

				if	( include.Type == aType )

				{

					string includePath = include.Location;

					string resolvedFileName = SymFileSystemUtils.MergePaths( includePath, aFileName );

					//

					if	( SymFileSystemUtils.FileExists( resolvedFileName ) )

					{

						ret = resolvedFileName;

						break;

					}

				}

			}

			//

			return ret;

		}

		#endregion

		#region Data members

		private Hashtable iIncludes = new Hashtable( 10 );

		#endregion

	}

}