/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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** This file is part of the QtWebSockets module of the Qt Toolkit.
**
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** accordance with the commercial license agreement provided with the
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** 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
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** 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
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****************************************************************************/
#include "chatserver.h"
#include "QtWebSockets/QWebSocketServer"
#include "QtWebSockets/QWebSocket"
#include <QtCore/QDebug>

QT_USE_NAMESPACE

//! [constructor]
ChatServer::ChatServer(quint16 port, QObject *parent) :
    QObject(parent),
    m_pWebSocketServer(Q_NULLPTR),
    m_clients()
{
    m_pWebSocketServer = new QWebSocketServer("Chat Server", QWebSocketServer::SecureModeNonSecure,
                                              this);
    if (m_pWebSocketServer->listen(QHostAddress::Any, port))
    {
        qDebug() << "Chat Server listening on port" << port;
        connect(m_pWebSocketServer, SIGNAL(newConnection()), this, SLOT(onNewConnection()));
    }
}
//! [constructor]

//! [onNewConnection]
void ChatServer::onNewConnection()
{
    QWebSocket *pSocket = m_pWebSocketServer->nextPendingConnection();

    connect(pSocket, SIGNAL(textMessageReceived(QString)), this, SLOT(processMessage(QString)));
    connect(pSocket, SIGNAL(disconnected()), this, SLOT(socketDisconnected()));

    m_clients << pSocket;
}
//! [onNewConnection]

//! [processMessage]
void ChatServer::processMessage(QString message)
{
    QWebSocket *pSender = qobject_cast<QWebSocket *>(sender());
    Q_FOREACH (QWebSocket *pClient, m_clients)
    {
        if (pClient != pSender) //don't echo message back to sender
        {
            pClient->write(message);
        }
    }
}
//! [processMessage]

//! [socketDisconnected]
void ChatServer::socketDisconnected()
{
    QWebSocket *pClient = qobject_cast<QWebSocket *>(sender());
    if (pClient)
    {
        m_clients.removeAll(pClient);
        pClient->deleteLater();
    }
}
//! [socketDisconnected]