/*
 * ConnectionManager.h
 *
 * Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.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 3 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef MAD_CORE_CONNECTIONMANAGER_H_
#define MAD_CORE_CONNECTIONMANAGER_H_

#include <list>
#include <vector>
#include <map>
#include <memory>
#include <poll.h>

#include "DaemonInfo.h"
#include <Common/Exception.h>
#include <Common/RequestManager.h>

namespace Mad {

namespace Net {
class Listener;
class Connection;
class ServerConnection;
class Packet;
}

namespace Core {

class ConnectionManager {
  private:
    static std::auto_ptr<ConnectionManager> connectionManager;

    std::list<Net::Listener*> listeners;

    std::list<Net::ServerConnection*> daemonConnections;
    std::list<Net::ServerConnection*> clientConnections;

    std::map<std::string,DaemonInfo> daemonInfo;
    std::map<std::string,Net::ServerConnection*> identifiedDaemonConnections;

    std::vector<struct pollfd> pollfds;
    std::map<int,const short*> pollfdMap;

    // Prevent shallow copy
    ConnectionManager(const ConnectionManager &o);
    ConnectionManager& operator=(const ConnectionManager &o);

    ConnectionManager();

    void refreshPollfds();

    void handleConnections(std::list<Net::ServerConnection*> &connections);

  public:
    static ConnectionManager* getConnectionManager() {
      return connectionManager.get();
    }

    static void init() {
      connectionManager = std::auto_ptr<ConnectionManager>(new ConnectionManager());
    }

    virtual ~ConnectionManager();

    bool wait(int timeout) {
      return (poll(pollfds.data(), pollfds.size(), timeout) > 0);
    }

    void run();

    Net::Connection* getDaemonConnection(const std::string &name) const throw (Common::Exception&);
    void identifyDaemonConnection(Net::Connection *connection, const std::string &name) throw (Common::Exception&);
    std::map<std::string,DaemonInfo> getDaemonList() const;
};

}
}

#endif /*MAD_CORE_CONNECTIONMANAGER_H_*/