//
//  PairingHandler.cpp
//  hifi
//
//  Created by Stephen Birarda on 5/13/13.
//  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
//

#ifndef _WIN32
#include <arpa/inet.h> // not available on windows
#endif

#include <string.h>
#include <stdio.h>

#include <QtNetwork/QHostInfo>

#include <HifiSockAddr.h>
#include <NodeList.h>

#include "PairingHandler.h"

const char PAIRING_SERVER_HOSTNAME[] = "pairing.highfidelity.io";
const int PAIRING_SERVER_PORT = 7247;

PairingHandler* PairingHandler::getInstance() {
    static PairingHandler* instance = NULL;

    if (!instance) {
        instance = new PairingHandler();
    }

    return instance;
}

void PairingHandler::sendPairRequest() {

    // prepare the pairing request packet

    NodeList* nodeList = NodeList::getInstance();

    // use the getLocalAddress helper to get this client's listening address
    quint32 localAddress = htonl(getHostOrderLocalAddress());

    char pairPacket[24] = {};
    sprintf(pairPacket, "Find %d.%d.%d.%d:%hu",
            localAddress & 0xFF,
            (localAddress >> 8) & 0xFF,
            (localAddress >> 16) & 0xFF,
            (localAddress >> 24) & 0xFF,
            NodeList::getInstance()->getNodeSocket().localPort());
    qDebug("Sending pair packet: %s", pairPacket);

    HifiSockAddr pairingServerSocket(PAIRING_SERVER_HOSTNAME, PAIRING_SERVER_PORT);

    // send the pair request to the pairing server
    nodeList->getNodeSocket().writeDatagram((char*) pairPacket, strlen(pairPacket),
                                            pairingServerSocket.getAddress(), pairingServerSocket.getPort());
}