/**************************************************************************
**
** This file is part of Qt SDK**
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).*
**
** Contact:  Nokia Corporation qt-info@nokia.com**
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception version
** 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you are unsure which license is appropriate for your use, please contact
** (qt-info@nokia.com).
**
**************************************************************************/
#include "binaryformatenginehandler.h"
#include "binaryformatengine.h"
#include "binaryformat.h"

#include <QDebug>
#include <QFile>
#include <QFSFileEngine>

using namespace QInstallerCreator;

static BinaryFormatEngineHandler* s_instance = 0;

    
class BinaryFormatEngineHandler::Private
{
public:
    Private( const ComponentIndex& i )
        : index( i )
    {
    }

    ComponentIndex index;
};

BinaryFormatEngineHandler::BinaryFormatEngineHandler( const ComponentIndex& index )
    : d( new Private( index ) )
{
    s_instance = this;
}

BinaryFormatEngineHandler::BinaryFormatEngineHandler( const BinaryFormatEngineHandler& other )
    : QAbstractFileEngineHandler(),
      d( new Private( other.d->index ) )
{
    s_instance = this;
}

BinaryFormatEngineHandler::~BinaryFormatEngineHandler()
{
    if( s_instance == this )
        s_instance = 0;
}

void BinaryFormatEngineHandler::setComponentIndex( const ComponentIndex& index )
{
    d->index = index;
}

QAbstractFileEngine* BinaryFormatEngineHandler::create( const QString& fileName ) const
{
    return fileName.startsWith( QLatin1String( "installer://" ), Qt::CaseInsensitive ) ? new BinaryFormatEngine( d->index, fileName ) : 0;
}
    
BinaryFormatEngineHandler* BinaryFormatEngineHandler::instance()
{
    return s_instance;
}
   
void BinaryFormatEngineHandler::registerArchive( const QString& pathName, const QString& archive )
{
    static const QChar sep = QChar::fromLatin1( '/' );
    static const QString prefix = QString::fromLatin1( "installer://" );
    Q_ASSERT( pathName.toLower().startsWith( prefix ) );

    // cut the prefix
    QString path = pathName.mid( prefix.length() );
    while( path.endsWith( sep ) )
        path.chop( 1 );

    const QString comp = path.section( sep, 0, 0 );
    const QString archiveName = path.section( sep, 1, 1 );
    
    Component c = d->index.componentByName( comp.toUtf8() );
    if( c.name().isEmpty() )
        c.setName( comp.toUtf8() );

    QList< QSharedPointer< Archive > > registered;
    QSharedPointer< Archive > newArchive( new Archive( archive ) );
    newArchive->setName( archiveName.toUtf8() );
    registered.push_back( newArchive );
    c.appendArchive( newArchive );
    d->index.insertComponent( c );
}