/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the QtSCriptTools module of the Qt Toolkit.
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** contained in the Technology Preview License Agreement accompanying
** this package.
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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**
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** additional rights.  These rights are described in the Nokia Qt LGPL
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** If you have questions regarding the use of this file, please contact
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** $QT_END_LICENSE$
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****************************************************************************/

#include "qscriptscriptdata_p.h"

#include <QtCore/qdatastream.h>
#include <QtCore/qstring.h>
#include <QtCore/qstringlist.h>

QT_BEGIN_NAMESPACE

/*!
  \since 4.5
  \class QScriptScriptData
  \internal

  \brief The QScriptScriptData class holds data associated with a script.
*/

class QScriptScriptDataPrivate
{
public:
    QScriptScriptDataPrivate();
    ~QScriptScriptDataPrivate();

    QString contents;
    QString fileName;
    int baseLineNumber;
    QDateTime timeStamp;

    QBasicAtomicInt ref;
};

QScriptScriptDataPrivate::QScriptScriptDataPrivate()
{
    ref = 0;
}

QScriptScriptDataPrivate::~QScriptScriptDataPrivate()
{
}

QScriptScriptData::QScriptScriptData()
    : d_ptr(0)
{
}

QScriptScriptData::QScriptScriptData(const QString &contents, const QString &fileName,
                                     int baseLineNumber, const QDateTime &timeStamp)
    : d_ptr(new QScriptScriptDataPrivate)
{
    d_ptr->contents = contents;
    d_ptr->fileName = fileName;
    d_ptr->baseLineNumber = baseLineNumber;
    if (timeStamp.isValid())
        d_ptr->timeStamp = timeStamp;
    else
        d_ptr->timeStamp = QDateTime::currentDateTime();
    d_ptr->ref.ref();
}

QScriptScriptData::QScriptScriptData(const QScriptScriptData &other)
    : d_ptr(other.d_ptr)
{
    if (d_ptr)
        d_ptr->ref.ref();
}

QScriptScriptData::~QScriptScriptData()
{
    if (d_ptr && !d_ptr->ref.deref()) {
        delete d_ptr;
        d_ptr = 0;
    }
}

QScriptScriptData &QScriptScriptData::operator=(const QScriptScriptData &other)
{
    if (d_ptr == other.d_ptr)
        return *this;
    if (d_ptr && !d_ptr->ref.deref())
        delete d_ptr;
    d_ptr = other.d_ptr;
    if (d_ptr)
        d_ptr->ref.ref();
    return *this;
}

QString QScriptScriptData::contents() const
{
    Q_D(const QScriptScriptData);
    if (!d)
        return QString();
    return d->contents;
}

QStringList QScriptScriptData::lines(int startLineNumber, int count) const
{
    Q_D(const QScriptScriptData);
    if (!d)
        return QStringList();
    QStringList allLines = d->contents.split(QLatin1Char('\n'));
    return allLines.mid(qMax(0, startLineNumber - d->baseLineNumber), count);
}

QString QScriptScriptData::fileName() const
{
    Q_D(const QScriptScriptData);
    if (!d)
        return QString();
    return d->fileName;
}

int QScriptScriptData::baseLineNumber() const
{
    Q_D(const QScriptScriptData);
    if (!d)
        return -1;
    return d->baseLineNumber;
}

QDateTime QScriptScriptData::timeStamp() const
{
    Q_D(const QScriptScriptData);
    if (!d)
        return QDateTime();
    return d->timeStamp;
}

bool QScriptScriptData::isValid() const
{
    Q_D(const QScriptScriptData);
    return (d != 0);
}

bool QScriptScriptData::operator==(const QScriptScriptData &other) const
{
    Q_D(const QScriptScriptData);
    const QScriptScriptDataPrivate *od = other.d_func();
    if (d == od)
        return true;
    if (!d || !od)
        return false;
    return ((d->contents == od->contents)
            && (d->fileName == od->fileName)
            && (d->baseLineNumber == od->baseLineNumber));
}

bool QScriptScriptData::operator!=(const QScriptScriptData &other) const
{
    return !(*this == other);
}

QDataStream &operator<<(QDataStream &out, const QScriptScriptData &data)
{
    const QScriptScriptDataPrivate *d = data.d_ptr;
    if (d) {
        out << d->contents;
        out << d->fileName;
        out << qint32(d->baseLineNumber);
    } else {
        out << QString();
        out << QString();
        out << qint32(0);
    }
    return out;
}

QDataStream &operator>>(QDataStream &in, QScriptScriptData &data)
{
    if (!data.d_ptr) {
        data.d_ptr = new QScriptScriptDataPrivate();
        data.d_ptr->ref.ref();
    }
    QScriptScriptDataPrivate *d = data.d_ptr;
    in >> d->contents;
    in >> d->fileName;
    qint32 ln;
    in >> ln;
    d->baseLineNumber = ln;
    return in;
}

QT_END_NAMESPACE