/*
   This file is part of the KDE libraries
   Copyright (c) 2006, 2007 Thomas Braxton <kde.braxton@gmail.com>
   Copyright (c) 2001 Waldo Bastian <bastian@kde.org>
   Copyright (c) 1999 Preston Brown <pbrown@kde.org>
   Copyright (c) 1997 Matthias Kalle Dalheimer <kalle@kde.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#ifndef KCONFIG_P_H
#define KCONFIG_P_H

#include "kconfigdata.h"
#include "kconfigbackend_p.h"
#include "kconfiggroup.h"

#include <QStringList>
#include <QStack>
#include <QFile>
#include <QDir>

class KConfigPrivate
{
    friend class KConfig;
public:
    KConfig::OpenFlags openFlags;
    QStandardPaths::StandardLocation resourceType;

    void changeFileName(const QString &fileName);

    // functions for KConfigGroup
    bool canWriteEntry(const QByteArray &group, const char *key, bool isDefault = false) const;
    QString lookupData(const QByteArray &group, const char *key, KEntryMap::SearchFlags flags,
                       bool *expand) const;
    QByteArray lookupData(const QByteArray &group, const char *key, KEntryMap::SearchFlags flags) const;

    void putData(const QByteArray &group, const char *key, const QByteArray &value,
                 KConfigBase::WriteConfigFlags flags, bool expand = false);
    void revertEntry(const QByteArray &group, const char *key);
    QStringList groupList(const QByteArray &group) const;
    // copies the entries from @p source to @p otherGroup changing all occurrences
    // of @p source with @p destination
    void copyGroup(const QByteArray &source, const QByteArray &destination,
                   KConfigGroup *otherGroup, KConfigBase::WriteConfigFlags flags) const;
    QStringList keyListImpl(const QByteArray &theGroup) const;
    QSet<QByteArray> allSubGroups(const QByteArray &parentGroup) const;
    bool hasNonDeletedEntries(const QByteArray &group) const;

    static QString expandString(const QString &value);

protected:
    QExplicitlySharedDataPointer<KConfigBackend> mBackend;

    KConfigPrivate(KConfig::OpenFlags flags,
                   QStandardPaths::StandardLocation type);

    virtual ~KConfigPrivate()
    {
    }

    bool bDynamicBackend: 1; // do we own the backend?
private:
    bool bDirty: 1;
    bool bReadDefaults: 1;
    bool bFileImmutable: 1;
    bool bForceGlobal: 1;
    bool bSuppressGlobal: 1;

    static bool mappingsRegistered;

    KEntryMap entryMap;
    QString backendType;
    QStack<QString> extraFiles;

    QString locale;
    QString fileName;
    QString etc_kderc;
    KConfigBase::AccessMode configState;

    bool wantGlobals() const
    {
        return openFlags & KConfig::IncludeGlobals && !bSuppressGlobal;
    }
    bool wantDefaults() const
    {
        return openFlags & KConfig::CascadeConfig;
    }
    bool isSimple() const
    {
        return openFlags == KConfig::SimpleConfig;
    }
    bool isReadOnly() const
    {
        return configState == KConfig::ReadOnly;
    }

    bool setLocale(const QString &aLocale);
    QStringList getGlobalFiles() const;
    void parseGlobalFiles();
    void parseConfigFiles();
    void initCustomized(KConfig *);
    bool lockLocal();
};

#endif // KCONFIG_P_H
