/*

* 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.Generic;

using System.Text;

namespace SymbianUtils.Mmp

{

    public class MmpFileReader : AsyncTextFileReader

    {

        #region Constructor & destructor

        public MmpFileReader( string aFileName )

            : base( aFileName )

        {

            iFileInfo = new MmpFileInfo( aFileName );

        }

        #endregion

        #region API

        public void Read()

        {

            base.SyncRead();

        }

        #endregion

        #region Properties

        public MmpFileInfo FileInfo

        {

            get { return iFileInfo; }

        }

        #endregion

        #region Internal methods

        private string[] ExtractElements( string aLine )

        {

            List<string> ret = new List<string>();

            //

            string line = aLine.Trim();

            line = line.Replace( '\t', ' ' );

            //

            string[] elements = line.Split( new char[] { ' ' } );

            foreach ( string element in elements )

            {

                if ( element.Length > 0 && element != " " )

                {

                    ret.Add( element );

                }

            }

            //

            return ret.ToArray();

        }

        #endregion

        #region From AsyncTextFileReader

        protected override void HandleFilteredLine( string aLine )

        {

            string[] elements = ExtractElements( aLine );

            //

            if ( elements.Length >= 2 )

            {

                string line = elements[ 0 ].ToUpper();

                //

                if ( line == "TARGET" )

                {

                    iFileInfo.Target = elements[ 1 ];

                    // Use extension as a means of guessing target type.

                    string extension = System.IO.Path.GetExtension( iFileInfo.Target ).ToUpper();

                    if ( extension == ".EXE" && iFileInfo.TargetType == MmpFileInfo.TTargetType.ETargetTypeUnsupported )

                    {

                        iFileInfo.TargetType = MmpFileInfo.TTargetType.ETargetTypeEXE;

                    }

                }

                else if ( line == "UID" )

                {

                    for ( int i = 1; i < elements.Length; i++ )

                    {

                        try

                        {

                            string uidString = elements[ i ];

                            uint val = 0;

                            if ( uint.TryParse( uidString, out val ) )

                            {

                                iFileInfo.Uids.Add( val );

                            }

                            else

                            {

                                // Try again, skipping any possible leading 0x prefix and using

                                // hex number formatting.

                                if ( uidString.StartsWith( "0x" ) )

                                {

                                    uidString = uidString.Substring( 2 );

                                    if ( uint.TryParse( uidString, System.Globalization.NumberStyles.HexNumber, null, out val ) )

                                    {

                                        iFileInfo.Uids.Add( val );

                                    }

                                }

                            }

                        }

                        catch ( Exception )

                        {

                        }

                    }

                }

                else if ( line == "TARGETTYPE" )

                {

                    // These are the only target types we need to support at the moment.

                    string targetType = elements[ 1 ].ToUpper();

                    //

                    if ( targetType == "EXE" )

                    {

                        iFileInfo.TargetType = MmpFileInfo.TTargetType.ETargetTypeEXE;

                    }

                    else if ( targetType == "EXEXP" )

                    {

                        iFileInfo.TargetType = MmpFileInfo.TTargetType.ETargetTypeEXE;

                    }

                    else if ( targetType == "DLL" )

                    {

                        iFileInfo.TargetType = MmpFileInfo.TTargetType.ETargetTypeDLL;

                    }

                }

            }

        }

        #endregion

        #region Data members

        private readonly MmpFileInfo iFileInfo;

        #endregion

    }

}