/*

* 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;

using System.IO;

using System.Windows.Forms;

using SymbianUtils;

using SymbianUtils.Tracer;

namespace SymbianUtils.FileSystem

{

    public sealed class FSLog : DisposableObject, ITracer

    {

        #region Constructors

        public FSLog()

            : this( false )

        {

        }

        public FSLog( bool aIncludeTimeStamp )

        {

            iIncludeTimeStamp = aIncludeTimeStamp;

            //

            try

            {

                string path = Application.ExecutablePath;

                string exe = Path.GetFileName( path );

                path = Path.GetDirectoryName( path );

                //

                string file = Path.Combine( path, exe + ".debug.txt" );

                iStream = new StreamWriter( new FileStream( file, FileMode.Create ) );

                iStream.AutoFlush = true;

            }

            catch ( Exception )

            {

            }

        }

        #endregion

        #region API

        public void TraceAlways( string aMessage )

        {

            DoTrace( aMessage, true );

        }

        #endregion

        #region Properties

        public bool Verbose

        {

            get { return iVerbose; }

            set { iVerbose = value; }

        }

        #endregion

        #region Internal methods

        private void DoTrace( string aLine, bool aDiagnostics )

        {

            if ( aDiagnostics )

            {

                System.Diagnostics.Debug.WriteLine( aLine );

            }

            // Try to output to file

            if ( iStream != null )

            {

                try

                {

                    iStream.WriteLine( aLine );

                }

                catch ( Exception )

                {

                    iStream.Close();

                    iStream = null;

                }

            }

        }

        #endregion

        #region DisposableObject

        protected override void CleanupManagedResources()

        {

            try

            {

                base.CleanupManagedResources();

            }

            finally

            {

                if ( iStream != null )

                {

                    iStream.Close();

                }

                iStream = null;

            }

        }

        #endregion

        #region From ITracer

        public void Trace( string aMessage )

        {

            StringBuilder text = new StringBuilder( aMessage );

            if ( iIncludeTimeStamp )

            {

                DateTime now = DateTime.Now;

                text.Insert( 0, now.ToLongTimeString() + " - " );

            }

            string msg = text.ToString();

            System.Diagnostics.Debug.WriteLine( msg );

            if ( iVerbose )

            {

                System.Console.WriteLine( msg );

                DoTrace( msg, false );

            }

        }

        public void Trace( string aFormat, params object[] aParams )

        {

            string text = string.Format( aFormat, aParams );

            Trace( text );

        }

        #endregion

        #region Data members

        private readonly bool iIncludeTimeStamp;

        private StreamWriter iStream;

        private bool iVerbose = false;

        #endregion

    }

}