/*

* 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.Text;

using System.IO;

using System.Collections.Generic;

using System.Reflection;

using SymbianDebugLib.Engine;

using CrashItemLib.Crash;

using CrashItemLib.PluginAPI;

using CrashItemLib.Engine.Sources;

namespace CrashItemLib.Engine.Primer

{

    public class CIEnginePrimer

    {

        #region Constructors

        internal CIEnginePrimer( CIEngine aEngine )

		{

            iEngine = aEngine;

            iWorkingSet = new CIPrimerWorkingSet( aEngine );

        }

		#endregion

        #region API

        public bool Prime( FileInfo aFile )

        {

            Clear();

            //

            CFFFileList otherFiles = new CFFFileList();

            bool success = PrimeOne( aFile, otherFiles );

            Flush();

            //

            return success;

        }

        public bool Prime( DirectoryInfo aDirectory )

        {

            int successCount = 0;

            //

            Clear();

            //

            CFFFileList otherFiles = new CFFFileList( aDirectory );

            while ( !otherFiles.IsEmpty )

            {

                FileInfo file = otherFiles.Dequeue();

                //

                try

                {

                    bool success = PrimeOne( file, otherFiles );

                    if ( success )

                    {

                        ++successCount;

                    }

                }

                catch ( Exception )

                {

                }

            }

            //

            Flush();

            //

            return ( successCount > 0 );

        }

        public bool PrimeRecursive( DirectoryInfo aDirectory )

        {

            int successCount = 0;

            //

            Clear();

            //

            CFFFileList otherFiles = new CFFFileList( aDirectory, SearchOption.AllDirectories );

            while ( !otherFiles.IsEmpty )

            {

                FileInfo file = otherFiles.Dequeue();

                //

                try

                {

                    bool success = PrimeOne( file, otherFiles );

                    if ( success )

                    {

                        ++successCount;

                    }

                }

                catch ( Exception )

                {

                }

            }

            //

            Flush();

            //

            return ( successCount > 0 );

        }

        #endregion

        #region Properties

        internal CFFPluginRegistry PluginLoader

        {

            get { return iEngine.PluginRegistry; }

        }

        internal CIEngineSourceCollection Sources

        {

            get { return iEngine.Sources; }

        }

        #endregion

        #region Internal methods

        private void Clear()

        {

            // Start with a clear list

            iWorkingSet.Clear();

        }

        private void Flush()

        {

            // This populates the engine's source list

            iWorkingSet.Rationalise();

            iWorkingSet.Clear();

        }

        private bool PrimeOne( FileInfo aFile, CFFFileList aOtherFiles )

        {

            bool success = false;

            // Check with the plugin loader to find all handlers

            CFFSourceAndConfidence[] handlers = PluginLoader.GetHandlers( aFile, aOtherFiles );

            if ( handlers.Length > 0 )

            {

                iWorkingSet.Add( handlers );

                success = true;

            }

            //

            return success;

        }

        #endregion

        #region Data members

        private readonly CIEngine iEngine;

        private readonly CIPrimerWorkingSet iWorkingSet;

		#endregion

    }

}