/home/marsyas/marsyas/src/marsyasqt/qoscserver.cpp

/*
 * Copyright ( C ) 2007 Arnold Krille <arnold@arnoldarts.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or ( at your option ) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#include <iostream>
#include "qoscserver.h"

#include <QtCore/QRegExp>
#include <QtNetwork/QUdpSocket>

QOscServer::QOscServer( quint16 port, QObject* p )
    : QOscBase( p )
{
    socket()->bind( QHostAddress::Any, port );
    connect( socket(), SIGNAL( readyRead() ), this, SLOT( readyRead() ) );
}
QOscServer::QOscServer( QHostAddress address, quint16 port, QObject* p )
    : QOscBase( p )
{
    socket()->bind( address, port );
    connect( socket(), SIGNAL( readyRead() ), this, SLOT( readyRead() ) );
}

QOscServer::~QOscServer() {
}

void QOscServer::registerPathObject( PathObject* p ) {
    paths.push_back( p );
}
void QOscServer::unregisterPathObject( PathObject* p ) {
    paths.removeAll( p );
}

#define BUFFERSIZE 255

void QOscServer::readyRead() {
    while ( socket()->hasPendingDatagrams() ) {
        QByteArray packet( BUFFERSIZE, char( 0 ) );
        int size = socket()->readDatagram( packet.data(), BUFFERSIZE );

        QString path;
        QString args;
        QVariant arguments;

        int i=0;
        if ( packet[ i ] == '/' ) {

            for ( ; i<size && packet[ i ] != char( 0 ); ++i )
                path += packet[ i ];

            while ( packet[ i ] != ',' ) ++i;
            ++i;
            while ( packet[ i ] != char( 0 ) )
                args += packet[ i++ ];

            if ( ! args.isEmpty() ) {
                QList<QVariant> list;

                foreach( QChar type, args ) {
                    while ( i%4 != 0 ) ++i;

                    QByteArray tmp = packet.right( packet.size()-i );
                    QVariant value;
                    if ( type == 's' ) {
                        QString s = toString( tmp );
                        value = s;
                        i += s.size();
                    }
                    if ( type == 'i' ) {
                        value = toInt32( tmp );
                        i+=4;
                    }
                    if ( type == 'f' ) {
                        value = toFloat( tmp );
                        i+=4;
                    }
                    //qDebug() << " got" << value;

                    if ( args.size() > 1 )
                        list.append( value );
                    else
                        arguments = value;
                }

                if ( args.size() > 1 )
                    arguments = list;
            }
        }

        QMap<QString,QString> replacements;
        replacements[ "!" ] = "^";
        replacements[ "{" ] = "(";
        replacements[ "}" ] = ")";
        replacements[ "," ] = "|";
        replacements[ "*" ] = ".*";
        replacements[ "?" ] = ".";

        foreach( QString rep, replacements.keys() )
            path.replace( rep, replacements[ rep ] );

        // patch for propagating data to the Marsyas network [ML]
        emit data(path, arguments);

        QRegExp exp( path );
        foreach( PathObject* obj, paths ) {
            if ( exp.exactMatch( obj->_path ) )
                obj->signalData( arguments );
        }
    }
}

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