/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the QtTest module of the Qt Toolkit.
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** This file may be used under the terms of the GNU Lesser 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 will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
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**
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** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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**
****************************************************************************/

#include "qtestbasicstreamer.h"
#include "qtestlogger_p.h"
#include "qtestelement.h"
#include "qtestelementattribute.h"
#include "qtestassert.h"

#include <stdio.h>
#include <stdlib.h>

#ifndef Q_OS_WIN
#include <unistd.h>
#endif

QT_BEGIN_NAMESPACE

QTestBasicStreamer::QTestBasicStreamer(QTestLogger *logger)
    :testLogger(logger)
{
    QTEST_ASSERT(testLogger);
}

QTestBasicStreamer::~QTestBasicStreamer()
{}

void QTestBasicStreamer::formatStart(const QTestElement *element, QTestCharBuffer *formatted) const
{
    if(!element || !formatted )
        return;
    formatted->data()[0] = '\0';
}

void QTestBasicStreamer::formatEnd(const QTestElement *element, QTestCharBuffer *formatted) const
{
    if(!element || !formatted )
        return;
    formatted->data()[0] = '\0';
}

void QTestBasicStreamer::formatBeforeAttributes(const QTestElement *element, QTestCharBuffer *formatted) const
{
    if(!element || !formatted )
        return;
    formatted->data()[0] = '\0';
}

void QTestBasicStreamer::formatAfterAttributes(const QTestElement *element, QTestCharBuffer *formatted) const
{
    if(!element || !formatted )
        return;
    formatted->data()[0] = '\0';
}

void QTestBasicStreamer::formatAttributes(const QTestElement *, const QTestElementAttribute *attribute, QTestCharBuffer *formatted) const
{
    if(!attribute || !formatted )
        return;
    formatted->data()[0] = '\0';
}

void QTestBasicStreamer::output(QTestElement *element) const
{
    if(!element)
        return;

    outputElements(element);
}

void QTestBasicStreamer::outputElements(QTestElement *element, bool) const
{
    QTestCharBuffer buf;
    bool hasChildren;
    /*
        Elements are in reverse order of occurrence, so start from the end and work
        our way backwards.
    */
    while (element && element->nextElement()) {
        element = element->nextElement();
    }
    while (element) {
        hasChildren = element->childElements();

        formatStart(element, &buf);
        outputString(buf.data());

        formatBeforeAttributes(element, &buf);
        outputString(buf.data());

        outputElementAttributes(element, element->attributes());

        formatAfterAttributes(element, &buf);
        outputString(buf.data());

        if(hasChildren)
            outputElements(element->childElements(), true);

        formatEnd(element, &buf);
        outputString(buf.data());

        element = element->previousElement();
    }
}

void QTestBasicStreamer::outputElementAttributes(const QTestElement* element, QTestElementAttribute *attribute) const
{
    QTestCharBuffer buf;
    while(attribute){
        formatAttributes(element, attribute, &buf);
        outputString(buf.data());
        attribute = attribute->nextElement();
    }
}

void QTestBasicStreamer::outputString(const char *msg) const
{
    testLogger->outputString(msg);
}

QTestLogger *QTestBasicStreamer::logger() const
{
    return testLogger;
}

QT_END_NAMESPACE