/****************************************************************************
**
** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
**
** This file is part of the porting application of the Qt Toolkit.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef RULESFROMXML_H
#define RULESFROMXML_H

#include <QList>
#include <QPair>
#include <QHash>
#include <QSet>
#include <QStringList>
#include "qtsimplexml.h"
#include "tokenreplacements.h"

class RuleDescription
{
public:
    explicit RuleDescription(QtSimpleXml &replacementRule) {
        qt3 = replacementRule["Qt3"].text();
        qt4 = replacementRule["Qt4"].text();
        ruleType = replacementRule.attribute("Type");
    }
    QString qt3;
    QString qt4;
    QString ruleType;
    bool operator==(const RuleDescription &other) const
    {
        return (qt3 == other.qt3 && qt4 == other.qt4 && ruleType == other.ruleType);
    }
};

class PortingRules
{
public:
    static void createInstance(QString xmlFilePath);
    static PortingRules *instance();
    static void deleteInstance();

    enum QtVersion{Qt3, Qt4};
    PortingRules(QString xmlFilePath);
    QList<TokenReplacement*> getTokenReplacementRules();
    QStringList getHeaderList(QtVersion qtVersion);
    QHash<QByteArray, QByteArray> getNeededHeaders();
    QStringList getInheritsQt();
    QHash<QByteArray, QByteArray> getClassLibraryList();
private:
    static PortingRules *theInstance;

    QList<TokenReplacement*> tokenRules;
    QStringList qt3Headers;
    QStringList qt4Headers;
    QHash<QByteArray, QByteArray> neededHeaders;
    QStringList inheritsQtClass;
    QList<RuleDescription> disabledRules;
    QHash<QByteArray, QByteArray> classLibraryList;


    void parseXml(const QString fileName);
    void checkScopeAddRule(/*const */QtSimpleXml &currentRule);
    QtSimpleXml *loadXml(const QString fileName) const ;
    QString resolveFileName(const QString currentFileName,
                            const QString includeFileName) const;
    bool isReplacementRule(const QString ruleType) const;
    void disableRule(QtSimpleXml &replacementRule);
    bool isRuleDisabled(QtSimpleXml &replacementRule) const;
    void addLogWarning(const QString text) const;
    void addLogError(const QString text) const;
};

#endif
