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#ifndef QCONTACTDETAIL_P_H

#define QCONTACTDETAIL_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include "qcontactdetail.h"

#include <QSharedData>

#include <QString>

#include <QHash>

QTM_BEGIN_NAMESPACE

/*

  Yet another string class

  Mostly a wrapper around char *, where we do pointer equality checks before

  a strcmp, given our common use case of equivalent pointers.

  Also handles when things get passed in as a QString, by converting to Latin1

  and caching the result, and caching conversions to QString (hit by definitionName a lot)

*/

class QContactStringHolder

{

public:

    QContactStringHolder()

        : m_str(0)

    {

    }

    ~QContactStringHolder()

    {

    }

    QContactStringHolder(const QContactStringHolder& other)

        : m_str(other.m_str)

    {

    }

    QContactStringHolder& operator=(const QContactStringHolder& other)

    {

        m_str = other.m_str; // checking for ==this is not worth the effort

        return *this;

    }

    QContactStringHolder(const char *str)

        : m_str(str)

    {

    }

    QContactStringHolder& operator=(const char *str)

    {

        m_str = str;

        return *this;

    }

    explicit QContactStringHolder(const QString& str)

    {

        *this = str;

    }

    QContactStringHolder& operator=(const QString& str)

    {

        m_str = s_allocated.value(str, 0);

        if (!m_str) {

            m_str = qstrdup(str.toLatin1().constData());

            s_allocated.insert(str, const_cast<char*>(m_str)); // it's my pointer

        }

        return *this;

    }

    bool operator==(const char* other) const

    {

        return other == m_str || (qstrcmp(other, m_str) == 0);

    }

    bool operator==(const QString& other) const

    {

        return (s_allocated.value(other, 0) == m_str) || (other == QLatin1String(m_str));

    }

    bool operator==(const QContactStringHolder& other) const

    {

        return (other.m_str == m_str) || (qstrcmp(other.m_str, m_str) == 0);

    }

    QString toQString() const

    {

        QString s = s_qstrings.value(m_str);

        if (!s.isEmpty())

            return s;

        s = QString::fromLatin1(m_str);

        s_qstrings.insert(m_str, s);

        return s;

    }

public:

    // The only data we have

    const char* m_str;

    static QHash<QString, char*> s_allocated;

    static QHash<const char *, QString> s_qstrings;

};

uint qHash(const QContactStringHolder& key);

class QContactDetailPrivate : public QSharedData

{

public:

    QContactDetailPrivate()

        : QSharedData(),

        m_id(lastDetailKey.fetchAndAddOrdered(1)),

        m_access(QContactDetail::NoConstraint)

    {

    }

    QContactDetailPrivate(const QContactDetailPrivate& other)

        : QSharedData(other),

        m_id(other.m_id),

        m_definitionName(other.m_definitionName),

        m_values(other.m_values),

        m_access(other.m_access)

    {

    }

    ~QContactDetailPrivate()

    {

    }

    int m_id; // internal, unique id.

    QContactStringHolder m_definitionName;

    QHash<QContactStringHolder, QVariant> m_values;

    QContactDetail::AccessConstraints m_access;

    static QAtomicInt lastDetailKey;

    static void setAccessConstraints(QContactDetail *d, QContactDetail::AccessConstraints constraint)

    {

        d->d->m_access = constraint;

    }

    static const QContactDetailPrivate* detailPrivate(const QContactDetail& detail)

    {

        return detail.d.constData();

    }

};

QTM_END_NAMESPACE

Q_DECLARE_TYPEINFO(QTM_PREPEND_NAMESPACE(QContactStringHolder), Q_MOVABLE_TYPE);

#endif