/**************************************************************************
**
** This file is part of Installer Framework**
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** Copyright (c) 2011-2012 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:
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**
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#include "simplemovefileoperation.h"

#include <QtCore/QFileInfo>

namespace QInstaller {

SimpleMoveFileOperation::SimpleMoveFileOperation()
{
    setName(QLatin1String("SimpleMoveFile"));
}

void SimpleMoveFileOperation::backup()
{
}

bool SimpleMoveFileOperation::performOperation()
{
    const QStringList args = arguments();
    if (args.count() != 2) {
        setError(InvalidArguments);
        setErrorString(tr("Invalid arguments in %0: %1 arguments given, 2 expected.").arg(name())
            .arg(args.count()));
        return false;
    }

    const QString source = args.at(0);
    const QString target = args.at(1);

    if (source.isEmpty() || target.isEmpty()) {
        setError(UserDefinedError);
        setErrorString(tr("None of the arguments can be empty: source(\"%1\"), target(\"%2\").")
            .arg(source, target));
        return false;
    }

    // If destination file exists, then we cannot use QFile::copy() because it does not overwrite an existing
    // file. So we remove the destination file.
    QFile file(target);
    if (file.exists()) {
        if (!file.remove()) {
            setError(UserDefinedError);
            setErrorString(tr("Can not copy source(\"%1\") to target(\"%2\"), because target is existing and "
                "not removable.").arg(source, target));
            return false;
        }
    }

    file.setFileName(source);
    if (!file.rename(target)) {
        setError(UserDefinedError);
        setErrorString(tr("Can not move source(\"%1\") to target(\"%2\"), %3.").arg(source, target,
            file.errorString()));
        return false;
    }

    emit outputTextChanged(tr("Move %1 to %2.").arg(source, target));
    return true;
}

bool SimpleMoveFileOperation::undoOperation()
{
    const QString source = arguments().at(0);
    const QString target = arguments().at(1);

    QFile(target).rename(source);
    emit outputTextChanged(tr("Move %1 to %2.").arg(target, source));

    return true;
}

bool SimpleMoveFileOperation::testOperation()
{
    return true;
}

Operation *SimpleMoveFileOperation::clone() const
{
    return new SimpleMoveFileOperation();
}

}   // namespace QInstaller