/***************************************************************************
 *   Copyright (C) 2005-2012 by the Quassel Project                        *
 *   devel@quassel-irc.org                                                 *
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) version 3.                                           *
 *                                                                         *
 *   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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef CORESESSIONEVENTPROCESSOR_H
#define CORESESSIONEVENTPROCESSOR_H

#include "basichandler.h"
#include "corenetwork.h"
#include "networkevent.h"

class CoreSession;
class CtcpEvent;
class IrcEvent;
class IrcEventNumeric;
class Netsplit;

class CoreSessionEventProcessor : public BasicHandler {
  Q_OBJECT

public:
  CoreSessionEventProcessor(CoreSession *session);

  inline CoreSession *coreSession() const { return _coreSession; }

  Q_INVOKABLE void processIrcEventNumeric(IrcEventNumeric *event);

  Q_INVOKABLE void processIrcEventAuthenticate(IrcEvent *event);   // SASL auth
  Q_INVOKABLE void processIrcEventCap(IrcEvent *event);            // CAP framework
  Q_INVOKABLE void processIrcEventInvite(IrcEvent *event);
  Q_INVOKABLE void processIrcEventJoin(IrcEvent *event);
  Q_INVOKABLE void lateProcessIrcEventKick(IrcEvent *event);
  Q_INVOKABLE void processIrcEventMode(IrcEvent *event);
  Q_INVOKABLE void lateProcessIrcEventNick(IrcEvent *event);
  Q_INVOKABLE void lateProcessIrcEventPart(IrcEvent *event);
  Q_INVOKABLE void processIrcEventPing(IrcEvent *event);
  Q_INVOKABLE void processIrcEventPong(IrcEvent *event);
  Q_INVOKABLE void processIrcEventQuit(IrcEvent *event);
  Q_INVOKABLE void lateProcessIrcEventQuit(IrcEvent *event);
  Q_INVOKABLE void processIrcEventTopic(IrcEvent *event);

  Q_INVOKABLE void processIrcEvent001(IrcEvent *event);            // RPL_WELCOME
  Q_INVOKABLE void processIrcEvent005(IrcEvent *event);            // RPL_ISUPPORT
  Q_INVOKABLE void processIrcEvent221(IrcEvent *event);            // RPL_UMODEIS
  Q_INVOKABLE void processIrcEvent250(IrcEvent *event);            // RPL_STATSCONN
  Q_INVOKABLE void processIrcEvent265(IrcEvent *event);            // RPL_LOCALUSERS
  Q_INVOKABLE void processIrcEvent266(IrcEvent *event);            // RPL_GLOBALUSERS
  Q_INVOKABLE void processIrcEvent301(IrcEvent *event);            // RPL_AWAY
  Q_INVOKABLE void processIrcEvent305(IrcEvent *event);            // RPL_UNAWAY
  Q_INVOKABLE void processIrcEvent306(IrcEvent *event);            // RPL_NOWAWAY
  Q_INVOKABLE void processIrcEvent307(IrcEvent *event);            // RPL_WHOISSERVICE
  Q_INVOKABLE void processIrcEvent310(IrcEvent *event);            // RPL_SUSERHOST
  Q_INVOKABLE void processIrcEvent311(IrcEvent *event);            // RPL_WHOISUSER
  Q_INVOKABLE void processIrcEvent312(IrcEvent *event);            // RPL_WHOISSERVER
  Q_INVOKABLE void processIrcEvent313(IrcEvent *event);            // RPL_WHOISOPERATOR
  Q_INVOKABLE void processIrcEvent315(IrcEvent *event);            // RPL_ENDOFWHO
  Q_INVOKABLE void processIrcEvent317(IrcEvent *event);            // RPL_WHOISIDLE
  Q_INVOKABLE void processIrcEvent322(IrcEvent *event);            // RPL_LIST
  Q_INVOKABLE void processIrcEvent323(IrcEvent *event);            // RPL_LISTEND
  Q_INVOKABLE void processIrcEvent324(IrcEvent *event);            // RPL_CHANNELMODEIS
  Q_INVOKABLE void processIrcEvent331(IrcEvent *event);            // RPL_NOTOPIC
  Q_INVOKABLE void processIrcEvent332(IrcEvent *event);            // RPL_TOPIC
  Q_INVOKABLE void processIrcEvent352(IrcEvent *event);            // RPL_WHOREPLY
  Q_INVOKABLE void processIrcEvent353(IrcEvent *event);            // RPL_NAMREPLY
  Q_INVOKABLE void processIrcEvent432(IrcEventNumeric *event);     // ERR_ERRONEUSNICKNAME
  Q_INVOKABLE void processIrcEvent433(IrcEventNumeric *event);     // ERR_NICKNAMEINUSE
  Q_INVOKABLE void processIrcEvent437(IrcEventNumeric *event);     // ERR_UNAVAILRESOURCE

  // Q_INVOKABLE void processIrcEvent(IrcEvent *event);

  /* CTCP handlers */
  Q_INVOKABLE void processCtcpEvent(CtcpEvent *event);

  Q_INVOKABLE void handleCtcpAction(CtcpEvent *event);
  Q_INVOKABLE void handleCtcpClientinfo(CtcpEvent *event);
  Q_INVOKABLE void handleCtcpPing(CtcpEvent *event);
  Q_INVOKABLE void handleCtcpTime(CtcpEvent *event);
  Q_INVOKABLE void handleCtcpVersion(CtcpEvent *event);
  Q_INVOKABLE void defaultHandler(const QString &ctcpCmd, CtcpEvent *event);

signals:
  void newEvent(Event *event);

protected:
  bool checkParamCount(IrcEvent *event, int minParams);
  inline CoreNetwork *coreNetwork(NetworkEvent *e) const { return qobject_cast<CoreNetwork *>(e->network()); }
  void tryNextNick(NetworkEvent *e, const QString &errnick, bool erroneous = false);

private slots:
  //! Joins after a netsplit
  /** This slot handles a bulk-join after a netsplit is over
    * \param net     The network
    * \param channel The channel the users joined
    * \param users   The list of users that joind the channel
    * \param modes   The list of modes the users get set
    * \param quitMessage The message we received when the netsplit occured
    */
  void handleNetsplitJoin(Network *net, const QString &channel, const QStringList &users, const QStringList &modes, const QString &quitMessage);

  //! Quits after a netsplit
  /** This slot handles a bulk-quit after a netsplit occured
    * \param net     The network
    * \param channel The channel the users quitted
    * \param users   The list of users that got split
    * \param quitMessage The message we received when the netsplit occured
    */
  void handleNetsplitQuit(Network *net, const QString &channel, const QStringList &users, const QString &quitMessage);

  //! Netsplit finished
  /** This slot deletes the netsplit object that sent the finished() signal
    */
  void handleNetsplitFinished();

  void handleEarlyNetsplitJoin(Network *net, const QString &channel, const QStringList &users, const QStringList &modes);

  //! Destroy any existing netsplits
  /** This slot deletes all netsplit objects
    * Used to get rid of existing netsplits on network reconnect
    * \param network The network we want to clear
    */
  void destroyNetsplits(NetworkId network);

private:
  CoreSession *_coreSession;

  // structure to organize netsplits
  // key: quit message
  // value: the corresponding netsplit object
  QHash<Network *, QHash<QString, Netsplit*> > _netsplits;
};

#endif
