/****************************************************************************

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** Copyright (C) 2010 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 test suite of the Qt Toolkit.

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** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

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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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****************************************************************************/

#include <cstdio>

#include <QBuffer>

#include <QStringList>

#include <QtDebug>

#include <QtTest>

#include <QtGlobal>

#include <QXmlQuery>

#include <QXmlResultItems>

#include "ErrorHandler.h"

using namespace QPatternistSDK;

ErrorHandler *ErrorHandler::handler = 0;

void qMessageHandler(QtMsgType type, const char *description)

{

    if(type == QtDebugMsg)

    {

        std::fprintf(stderr, "%s\n", description);

        return;

    }

    QtMsgType t;

    switch(type)

    {

        case QtWarningMsg:

        {

            t = QtWarningMsg;

            break;

        }

        case QtCriticalMsg:

        {

            t = QtFatalMsg;

            break;

        }

        case QtFatalMsg:

        {

            /* We can't swallow Q_ASSERTs, we need to fail the hard way here.

             * But maybe not: when run from "patternistrunsingle" it could be an idea

             * to actually try to record it(but nevertheless fail somehow) such

             * that it gets reported. */

            std::fprintf(stderr, "Fatal error: %s\n", description);

            t = QtFatalMsg; /* Dummy, to silence a bogus compiler warning. */

            return;

        }

        case QtDebugMsg: /* This enum is handled above in the if-clause. */

        /* Fallthrough. */

        default:

        {

            Q_ASSERT(false);

            return;

        }

    }

    Q_ASSERT(ErrorHandler::handler);

    /* This message is hacky. Ideally, we should do it the same way

     * ReportContext::error() constructs messages, but this is just testing

     * code. */

    ErrorHandler::handler->message(t, QLatin1String("<p>") + QPatternist::escape(QLatin1String(description)) + QLatin1String("</p>"));

}

void ErrorHandler::installQtMessageHandler(ErrorHandler *const h)

{

    handler = h;

    if(h)

        qInstallMsgHandler(qMessageHandler);

    else

        qInstallMsgHandler(0);

}

void ErrorHandler::handleMessage(QtMsgType type,

                                 const QString &description,

                                 const QUrl &identifier,

                                 const QSourceLocation &)

{

    /* Don't use pDebug() in this function, it results in infinite

     * recursion. Talking from experience.. */

    Message msg;

    msg.setType(type);

    msg.setIdentifier(identifier);

    /* Let's remove all the XHTML markup. */

    QBuffer buffer;

    buffer.setData(description.toLatin1());

    buffer.open(QIODevice::ReadOnly);

    QXmlQuery query;

    query.bindVariable(QLatin1String("desc"), &buffer);

    query.setQuery(QLatin1String("string(doc($desc))"));

    QStringList result;

    const bool success = query.evaluateTo(&result);

    if(!description.startsWith(QLatin1String("\"Test-suite harness error:")))

    {

        const QString msg(QString::fromLatin1("Invalid description: %1").arg(description));

        QVERIFY2(success, qPrintable(msg));

        if(!success)

            QTextStream(stderr) << msg;

    }

    if(!result.isEmpty())

        msg.setDescription(result.first());

    m_messages.append(msg);

}

ErrorHandler::Message::List ErrorHandler::messages() const

{

    return m_messages;

}

void ErrorHandler::reset()

{

    m_messages.clear();

}

// vim: et:ts=4:sw=4:sts=4