/**************************************************************************
**
** This file is part of Installer Framework**
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).*
**
** Contact:  Nokia Corporation qt-info@nokia.com**
**
** 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).
**
**************************************************************************/
#ifndef QINSTALLER_FILEUTILS_H
#define QINSTALLER_FILEUTILS_H

#include "installer_global.h"

#include <QtCore/QSet>
#include <QtCore/QString>
#include <QtCore/QStringList>

QT_BEGIN_NAMESPACE
class QByteArray;
class QIODevice;
class QUrl;
QT_END_NAMESPACE

namespace QInstaller {
class INSTALLER_EXPORT TempDirDeleter
{
public:
    explicit TempDirDeleter(const QString &path);
    explicit TempDirDeleter(const QStringList &paths = QStringList());
    ~TempDirDeleter();

    QStringList paths() const;

    void add(const QString &path);
    void add(const QStringList &paths);

    void releaseAll();
    void release(const QString &path);
    void passAndReleaseAll(TempDirDeleter &tdd);
    void passAndRelease(TempDirDeleter &tdd, const QString &path);

    void releaseAndDeleteAll();
    void releaseAndDelete(const QString &path);

private:
    Q_DISABLE_COPY(TempDirDeleter)
    QSet<QString> m_paths;
};

    QString INSTALLER_EXPORT humanReadableSize(const qint64 &size, int precision = 2);

    void INSTALLER_EXPORT openForRead(QIODevice *dev, const QString &name);
    void INSTALLER_EXPORT openForWrite(QIODevice *dev, const QString &name);
    void INSTALLER_EXPORT openForAppend(QIODevice *dev, const QString &name);

    qint64 INSTALLER_EXPORT blockingRead(QIODevice *in, char *buffer, qint64 size);
    void INSTALLER_EXPORT blockingCopy(QIODevice *in, QIODevice *out, qint64 size);
    qint64 INSTALLER_EXPORT blockingWrite(QIODevice *out, const char *buffer, qint64 size);
    qint64 INSTALLER_EXPORT blockingWrite(QIODevice *out, const QByteArray& ba);

    /*!
        Removes the directory at \a path recursively.
        @param path The directory to remove
        @param ignoreErrors if @p true, errors will be silently ignored. Otherwise an exception will be thrown
            if removing fails.

        @throws QInstaller::Error if the directory cannot be removed and ignoreErrors is @p false
    */
    void INSTALLER_EXPORT removeFiles(const QString &path, bool ignoreErrors = false);
    void INSTALLER_EXPORT removeDirectory(const QString &path, bool ignoreErrors = false);
    void INSTALLER_EXPORT removeDirectoryThreaded(const QString &path, bool ignoreErrors = false);
    void INSTALLER_EXPORT removeSystemGeneratedFiles(const QString &path);

    /*!
        Creates a temporary directory
        @throws QInstaller::Error if creating the temporary directory fails
    */
    QString INSTALLER_EXPORT createTemporaryDirectory(const QString &templ=QString());

    QString INSTALLER_EXPORT generateTemporaryFileName(const QString &templ=QString());

    void INSTALLER_EXPORT moveDirectoryContents(const QString &sourceDir, const QString &targetDir);
    void INSTALLER_EXPORT copyDirectoryContents(const QString &sourceDir, const QString &targetDir);

    bool INSTALLER_EXPORT isLocalUrl(const QUrl &url);
    QString INSTALLER_EXPORT pathFromUrl(const QUrl &url);

    void INSTALLER_EXPORT mkdir(const QString &path);
    void INSTALLER_EXPORT mkpath(const QString &path);

#ifdef Q_WS_WIN
    /*!
        Sets the .ico file at \a icon as application icon for \a application.
    */
    void INSTALLER_EXPORT setApplicationIcon(const QString &application, const QString &icon);
#endif
}

#endif // QINSTALLER_FILEUTILS_H