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#include "connectionmanager.h"

#include "peerwireclient.h"

#include "ratecontroller.h"

#include "torrentclient.h"

#include "torrentserver.h"

Q_GLOBAL_STATIC(TorrentServer, torrentServer)

TorrentServer *TorrentServer::instance()

{

    return torrentServer();

}

void TorrentServer::addClient(TorrentClient *client)

{

    clients << client;

}

void TorrentServer::removeClient(TorrentClient *client)

{

    clients.removeAll(client);

}

void TorrentServer::incomingConnection(int socketDescriptor)

{

    PeerWireClient *client =

  	new PeerWireClient(ConnectionManager::instance()->clientId(), this);

    if (client->setSocketDescriptor(socketDescriptor)) {

        if (ConnectionManager::instance()->canAddConnection() && !clients.isEmpty()) {

            connect(client, SIGNAL(infoHashReceived(const QByteArray &)),

                    this, SLOT(processInfoHash(const QByteArray &)));

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

                    this, SLOT(removeClient()));

            RateController::instance()->addSocket(client);

            ConnectionManager::instance()->addConnection(client);

            return;

        }

    }

    client->abort();

    delete client;

}

void TorrentServer::removeClient()

{

    PeerWireClient *peer = qobject_cast<PeerWireClient *>(sender());

    RateController::instance()->removeSocket(peer);

    ConnectionManager::instance()->removeConnection(peer);

    peer->deleteLater();

}

void TorrentServer::processInfoHash(const QByteArray &infoHash)

{

    PeerWireClient *peer = qobject_cast<PeerWireClient *>(sender());

    foreach (TorrentClient *client, clients) {

        if (client->state() >= TorrentClient::Searching && client->infoHash() == infoHash) {

            peer->disconnect(peer, 0, this, 0);

            client->setupIncomingConnection(peer);

            return;

        }

    }

    removeClient();

}