/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qbs.
**
** $QT_BEGIN_LICENSE:LGPL$
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
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** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
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** $QT_END_LICENSE$
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****************************************************************************/

#ifndef QBS_VERSION_H
#define QBS_VERSION_H

#include "qbs_export.h"

#include <QtCore/qchar.h>
#include <QtCore/qglobal.h>

QT_BEGIN_NAMESPACE
class QString;
QT_END_NAMESPACE

namespace qbs {

class QBS_EXPORT Version
{
public:
    explicit Version(int majorVersion = 0, int minorVersion = 0, int patchLevel = 0,
            int buildNr = 0);

    bool isValid() const { return m_major || m_minor || m_patch || m_build; }

    int majorVersion() const;
    void setMajorVersion(int majorVersion);

    int minorVersion() const;
    void setMinorVersion(int minorVersion);

    int patchLevel() const;
    void setPatchLevel(int patchLevel);

    int buildNumber() const;
    void setBuildNumber(int nr);

    static Version fromString(const QString &versionString, bool buildNumberAllowed = false);
    QString toString(const QChar &separator = QLatin1Char('.'),
                     const QChar &buildSeparator = QLatin1Char('-')) const;

private:
    int m_major;
    int m_minor;
    int m_patch;
    int m_build;
};

class VersionRange
{
public:
    VersionRange() = default;
    VersionRange(const Version &minVersion, const Version &maxVersion);

    Version minimum;
    Version maximum; // exclusive

    VersionRange &narrowDown(const VersionRange &other);
};

QBS_EXPORT int compare(const Version &lhs, const Version &rhs);
inline bool operator==(const Version &lhs, const Version &rhs) { return compare(lhs, rhs) == 0; }
inline bool operator!=(const Version &lhs, const Version &rhs) { return !operator==(lhs, rhs); }
inline bool operator<(const Version &lhs, const Version &rhs) { return compare(lhs, rhs) < 0; }
inline bool operator>(const Version &lhs, const Version &rhs) { return compare(lhs, rhs) > 0; }
inline bool operator<=(const Version &lhs, const Version &rhs) { return !operator>(lhs, rhs); }
inline bool operator>=(const Version &lhs, const Version &rhs) { return !operator<(lhs, rhs); }

} // namespace qbs

#endif // QBS_VERSION_H