/*

* Copyright (c) 2009 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 System.Collections.Generic;

namespace SymbolLib.CodeSegDef

{

	public class CodeSegDefinitionCollection : IEnumerable<CodeSegDefinition>

	{

		#region Constructors & destructor

		public CodeSegDefinitionCollection()

			: this( 10 )

		{

		}

		public CodeSegDefinitionCollection( int aGranularity )

		{

			iEntries = new List<CodeSegDefinition>( aGranularity );

		}

		#endregion

		#region API

		public void Reset()

		{

			iEntries.Clear();

		}

		public void Add( CodeSegDefinition aNewEntry )

		{

            if ( aNewEntry.ImageFileName.Length == 0 )

            {

                throw new ArgumentException( "Invalid code seg definition entry" );

            }

            // Our check-for-exists predicate

            Predicate<CodeSegDefinition> existsPredicate = delegate( CodeSegDefinition aEntry )

            {

                return aEntry.ImageFileName.ToLower() == aNewEntry.ImageFileName.ToLower();

            };

            // Check whether there is already an entry that matches

            if ( !iEntries.Exists( existsPredicate ) )

            {

                iEntries.Add( aNewEntry );

            }

            else

            {

#if TRACE_RESOLVER

               System.Diagnostics.Debug.WriteLine( "IGNORING DUPE CodeSegDefinition: " + aNewEntry.ToString() );

#endif

            }

		}

        public void Remove( CodeSegDefinition aRemoveEntry )

        {

            if ( aRemoveEntry.ImageFileName.Length == 0 )

            {

                throw new ArgumentException( "Invalid code seg definition entry" );

            }

            // Our check-for-match predicate

            Predicate<CodeSegDefinition> matchPredicate = delegate( CodeSegDefinition aEntry )

            {

                return aEntry.ImageFileName.ToLower() == aRemoveEntry.ImageFileName.ToLower();

            };

            // Remove any matching entries

            iEntries.RemoveAll( matchPredicate );

        }

        public int IndexOf( CodeSegDefinition aEntry )

        {

            int index = -1;

            int i = 0;

            //

            foreach ( CodeSegDefinition entry in iEntries )

            {

                if ( entry.EnvironmentFileNameAndPath.ToLower() == aEntry.EnvironmentFileNameAndPath.ToLower() )

                {

                    index = i;

                    break;

                }

                ++i;

            }

            //

            return index;

        }

		public void SortByFileName()

		{

			iEntries.Sort( new CodeSegDefinitionCollectionCompareByFileName() );

		}

		public void SortByAddress()

		{

			iEntries.Sort( new CodeSegDefinitionCollectionCompareByAddress() );

		}

        public CodeSegDefinition DefinitionByAddress( long aAddress )

        {

            CodeSegDefinition ret = null;

            //

            foreach ( CodeSegDefinition entry in iEntries )

            {

                if ( entry.AddressRange.Contains( aAddress ) )

                {

                    ret = entry;

                    break;

                }

            }

            //

            return ret;

        }

		public CodeSegDefinition FindByCodeSegmentFileNameAndPath( string aImageCodeSegmentFileNameAndPath )

		{

			CodeSegDefinition temp = new CodeSegDefinition( string.Empty, aImageCodeSegmentFileNameAndPath );

			int index = iEntries.IndexOf( temp );

			int x = 0;

			if	( x != 0 )

			{

				int count = iEntries.Count;

				for( int i=0; i<count; i++ )

				{

					CodeSegDefinition e = this[ i ];

#if TRACE_RESOLVER

					System.Diagnostics.Debug.WriteLine( "Entry = ENV[ " + e.EnvironmentFileName + " => " + e.EnvironmentFileNameAndPath + " ] IMG[ " + e.ImageFileName + " => " + e.ImageFileNameAndPath + " ]" );

#endif

				}

			}

			if	( index >= 0 && index < Count )

			{

				temp = this[ index ];

			}

			else

			{

				// Not found

				temp = null;

			}

			//

			return temp;

		}

        public void MergeInto( CodeSegDefinitionCollection aItems )

        {

            foreach ( CodeSegDefinition entry in aItems )

            {

                Add( entry );

            }

        }

		#endregion

		#region Properties

		public int Count

		{

			get { return iEntries.Count; }

		}

		public CodeSegDefinition this[ int aIndex ]

		{

			get { return iEntries[ aIndex ]; }

		}

		#endregion

        #region IEnumerable Members

        public IEnumerator GetEnumerator()

		{

			return new CodeSegDefinitionCollectionEnumerator( this );

		}

        IEnumerator<CodeSegDefinition> IEnumerable<CodeSegDefinition>.GetEnumerator()

        {

            return new CodeSegDefinitionCollectionEnumerator( this );

        }

		#endregion

		#region Data members

		private readonly List<CodeSegDefinition> iEntries;

		#endregion

    }

}