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

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the examples of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

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

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, 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.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

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

#include <QtNetwork>

#include "client.h"

#include "connection.h"

#include "peermanager.h"

Client::Client()

{

    peerManager = new PeerManager(this);

    peerManager->setServerPort(server.serverPort());

    peerManager->startBroadcasting();

    QObject::connect(peerManager, SIGNAL(newConnection(Connection *)),

                     this, SLOT(newConnection(Connection *)));

    QObject::connect(&server, SIGNAL(newConnection(Connection *)),

                     this, SLOT(newConnection(Connection *)));

}

void Client::sendMessage(const QString &message)

{

    if (message.isEmpty())

        return;

    QList<Connection *> connections = peers.values();

    foreach (Connection *connection, connections)

        connection->sendMessage(message);

}

QString Client::nickName() const

{

    return QString(peerManager->userName()) + "@" + QHostInfo::localHostName()

           + ":" + QString::number(server.serverPort());

}

bool Client::hasConnection(const QHostAddress &senderIp, int senderPort) const

{

    if (senderPort == -1)

        return peers.contains(senderIp);

    if (!peers.contains(senderIp))

        return false;

    QList<Connection *> connections = peers.values(senderIp);

    foreach (Connection *connection, connections) {

        if (connection->peerPort() == senderPort)

            return true;

    }

    return false;

}

void Client::newConnection(Connection *connection)

{

    connection->setGreetingMessage(peerManager->userName());

    connect(connection, SIGNAL(error(QAbstractSocket::SocketError)),

            this, SLOT(connectionError(QAbstractSocket::SocketError)));

    connect(connection, SIGNAL(disconnected()), this, SLOT(disconnected()));

    connect(connection, SIGNAL(readyForUse()), this, SLOT(readyForUse()));

}

void Client::readyForUse()

{

    Connection *connection = qobject_cast<Connection *>(sender());

    if (!connection || hasConnection(connection->peerAddress(),

                                     connection->peerPort()))

        return;

    connect(connection, SIGNAL(newMessage(const QString &, const QString &)),

            this, SIGNAL(newMessage(const QString &, const QString &)));

    peers.insert(connection->peerAddress(), connection);

    QString nick = connection->name();

    if (!nick.isEmpty())

        emit newParticipant(nick);

}

void Client::disconnected()

{

    if (Connection *connection = qobject_cast<Connection *>(sender()))

        removeConnection(connection);

}

void Client::connectionError(QAbstractSocket::SocketError /* socketError */)

{

    if (Connection *connection = qobject_cast<Connection *>(sender()))

        removeConnection(connection);

}

void Client::removeConnection(Connection *connection)

{

    if (peers.contains(connection->peerAddress())) {

        peers.remove(connection->peerAddress());

        QString nick = connection->name();

        if (!nick.isEmpty())

            emit participantLeft(nick);

    }

    connection->deleteLater();

}