/****************************************************************************
**
** Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team.
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtTools module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** 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
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** 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
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QQUERY_P_H
#define QQUERY_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of the help generator tools. This header file may change from version
// to version without notice, or even be removed.
//
// We mean it.
//

#include "qterm_p.h"
#include "qclucene_global_p.h"

#include <QtCore/QList>
#include <QtCore/QString>
#include <QtCore/QSharedDataPointer>
#include <QtCore/QSharedData>

CL_NS_DEF(search)
    class Query;
CL_NS_END
CL_NS_USE(search)

QT_BEGIN_NAMESPACE

class QCLuceneHits;
class QCLuceneTermQuery;
class QCLuceneRangeQuery;
class QCLuceneQueryParser;
class QCLucenePrefixQuery;
class QCLuceneBooleanQuery;
class QCLucenePhraseQuery;

class Q_CLUCENE_EXPORT QCLuceneQueryPrivate : public QSharedData
{
public:
    QCLuceneQueryPrivate();
    QCLuceneQueryPrivate(const QCLuceneQueryPrivate &other);

    ~QCLuceneQueryPrivate();

    Query *query;
    bool deleteCLuceneQuery;

private:
    QCLuceneQueryPrivate &operator=(const QCLuceneQueryPrivate &other);
};

class Q_CLUCENE_EXPORT QCLuceneQuery
{
public:
    virtual ~QCLuceneQuery();

    void setBoost(qreal boost);
    qreal getBoost() const;
    QString getQueryName() const;
    bool instanceOf(const QString &other) const;
    QString toString(const QString &field) const;
    quint32 hashCode() const;
    QString toString() const;
    bool equals(const QCLuceneQuery &other) const;

protected:
    friend class QCLuceneHits;
    friend class QCLuceneTermQuery;
    friend class QCLuceneRangeQuery;
    friend class QCLucenePrefixQuery;
    friend class QCLuceneQueryParser;
    friend class QCLuceneBooleanQuery;
    friend class QCLucenePhraseQuery;
    QSharedDataPointer<QCLuceneQueryPrivate> d;

private:
    QCLuceneQuery();
};

class Q_CLUCENE_EXPORT QCLucenePrefixQuery : public QCLuceneQuery
{
public:
    QCLucenePrefixQuery(const QCLuceneTerm &prefix);
    ~QCLucenePrefixQuery();

    static QString getClassName();

    QCLuceneTerm getPrefix() const;

private:
    QCLuceneTerm prefix;
};

class Q_CLUCENE_EXPORT QCLuceneRangeQuery : public QCLuceneQuery
{
public:
    QCLuceneRangeQuery(const QCLuceneTerm &lowerTerm,
        const QCLuceneTerm &upperTerm, bool inclusive);
    ~QCLuceneRangeQuery();

    static QString getClassName();

    QCLuceneTerm getLowerTerm() const;
    QCLuceneTerm getUpperTerm() const;

    bool isInclusive() const;
    QString getField() const;

private:
    QCLuceneTerm lowerTerm;
    QCLuceneTerm upperTerm;
};

class Q_CLUCENE_EXPORT QCLuceneTermQuery : public QCLuceneQuery
{
public:
    QCLuceneTermQuery(const QCLuceneTerm &term);
    ~QCLuceneTermQuery();

    static QString getClassName();

    QCLuceneTerm getTerm() const;

private:
    QCLuceneTerm term;
};

class Q_CLUCENE_EXPORT QCLuceneBooleanQuery : public QCLuceneQuery
{
public:
    QCLuceneBooleanQuery();
    ~QCLuceneBooleanQuery();

    static QString getClassName();

    quint32 getClauseCount() const;
    quint32 getMaxClauseCount() const;
    void setMaxClauseCount(quint32 maxClauseCount);

    void add(QCLuceneQuery *query, bool required, bool prohibited);
    void add(QCLuceneQuery *query, bool delQuery, bool required, bool prohibited);

private:
    QList<QCLuceneQuery*> queries;
};

class Q_CLUCENE_EXPORT QCLucenePhraseQuery : public QCLuceneQuery
{
public:
    QCLucenePhraseQuery();
    ~QCLucenePhraseQuery();

    static QString getClassName();

    qint32 getSlop() const;
    void setSlop(const qint32 slop);

    void addTerm(const QCLuceneTerm &term);
    void addTerm(const QCLuceneTerm &term, qint32 position);

    QString getFieldName() const;
    QList<QCLuceneTerm> getTerms() const;

private:
    QList<QCLuceneTerm> termList;
};

QT_END_NAMESPACE

#endif  // QQUERY_P_H
