/**
 * @file PswGen/Generator/generator.cpp
 * @brief Implementation of the iGenerator interface
 * @author Enar Vaikene
 *
 * Copyright (c) 2011 Enar Vaikene
 *
 * This file is part of the eVaf C++ cross-platform application development framework.
 *
 * This file can be used under the terms of the GNU General Public License
 * version 3.0 as published by the Free Software Foundation and appearing in
 * the file LICENSE included in the packaging of this file. Please review the
 * the following information to ensure the GNU General Public License version
 * 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
 *
 * Alternatively, this file may be used in accordance with the Commercial License
 * Agreement provided with the Software.
 */

#include "generator.h"
#include "version.h"

#include <Common/iLogger>
#include <Common/iRegistry>

#include <QtCore>

using namespace eVaf;
using namespace evaf::PswGen;
using namespace eVaf::PswGen::Generator;

//-------------------------------------------------------------------

Generator::Generator()
    : Plugins::iPlugin()
    , mReady(false)
{
    setObjectName(QString("%1.%2").arg(VER_MODULE_NAME_STR).arg(__FUNCTION__));

    mGenerator = new Internal::GeneratorImpl;

    EVAF_INFO("%s created", qPrintable(objectName()));
}

Generator::~Generator()
{
    delete mGenerator;

    EVAF_INFO("%s destroyed", qPrintable(objectName()));
}

bool Generator::init(const QString & args)
{
    Q_UNUSED(args);

    if (!mGenerator->init())
        return false;

    mReady = true;

    EVAF_INFO("%s initialized", qPrintable(objectName()));

    return true;
}

void Generator::done()
{
    mReady = false;

    mGenerator->done();

    EVAF_INFO("%s finalized", qPrintable(objectName()));
}


//-------------------------------------------------------------------

using namespace eVaf::PswGen::Generator::Internal;

GeneratorImpl::GeneratorImpl()
    : iGenerator()
{
    setObjectName(QString("%1.iGenerator").arg(VER_MODULE_NAME_STR));

    Common::iRegistry::instance()->registerInterface("iGenerator", this);

    EVAF_INFO("%s created", qPrintable(objectName()));
}

GeneratorImpl::~GeneratorImpl()
{
    EVAF_INFO("%s destroyed", qPrintable(objectName()));
}

bool GeneratorImpl::init()
{
    EVAF_INFO("%s initialized", qPrintable(objectName()));

    return true;
}

void GeneratorImpl::done()
{
    EVAF_INFO("%s finalized", qPrintable(objectName()));
}

QString GeneratorImpl::generatePassword(char const * const name, char const * const masterPassword, int length, uint flags)
{
    QByteArray inputString = QString("%1%2").arg(name).arg(masterPassword).toLatin1();
    QCryptographicHash hash(QCryptographicHash::Md5);
    hash.addData(inputString);
    QByteArray result = hash.result().toBase64();
    if (length > 0)
        return result.left(length);
    else
        return result;
}


//-------------------------------------------------------------------

VER_EXPORT_VERSION_INFO()
Q_EXPORT_PLUGIN2(VER_MODULE_NAME_STR, Generator)