/*

 * Hedgewars, a worms-like game

 * Copyright (c) 2006 Ulyanov Igor <iulyanov@gmail.com>

 *

 * 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; version 2 of the License

 *

 * 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

 */

#include "netserver.h"

#include <QTcpServer>

#include <QTcpSocket>

#include <QMessageBox>

#include <algorithm>

#include <QDebug>

const quint16 HWNetServer::ds_port=46631;

extern char delimeter;

void HWNetServer::StartServer()

{

  hhnum=0;

  IPCServer = new QTcpServer(this);

  if (!IPCServer->listen(QHostAddress::Any, ds_port)) {

    QMessageBox::critical(0, tr("Error"),

			  tr("Unable to start the server: %1.")

			  .arg(IPCServer->errorString()));

  }

  connect(IPCServer, SIGNAL(newConnection()), this, SLOT(NewConnection()));

}

void HWNetServer::StopServer()

{

  QList<HWConnectedClient*>::iterator it;

  for(it=connclients.begin(); it!=connclients.end(); ++it) {

    ClientDisconnect(*it);

  }

  IPCServer->close();

}

void HWNetServer::NewConnection()

{

  QTcpSocket* client = IPCServer->nextPendingConnection();

  if(!client) return;

  connclients.push_back(new HWConnectedClient(this, client));

  connect(connclients.back(), SIGNAL(HWClientDisconnected(HWConnectedClient*)),

	  this, SLOT(ClientDisconnect(HWConnectedClient*)));

}

void HWNetServer::ClientDisconnect(HWConnectedClient* client)

{

  QList<HWConnectedClient*>::iterator it=std::find(connclients.begin(), connclients.end(), client);

  if(it==connclients.end()) return;

  for(QList<QStringList>::iterator tmIt=(*it)->m_teamsCfg.begin(); tmIt!=(*it)->m_teamsCfg.end(); ++tmIt) {

    sendOthers(*it, QString("REMOVETEAM:")+delimeter+*(tmIt->begin()) + delimeter + *(tmIt->begin()+1));

  }

  connclients.erase(it);

  //teamChanged();

}

QString HWNetServer::getRunningHostName() const

{

  return IPCServer->serverAddress().toString();

}

quint16 HWNetServer::getRunningPort() const

{

  return ds_port;

}

HWConnectedClient* HWNetServer::getChiefClient() const

{

  for(QList<HWConnectedClient*>::const_iterator it=connclients.begin(); it!=connclients.end(); ++it) {

    // watch for first fully connected client (with confirmed nick)

    if((*it)->getClientNick()!="") return *it;

  }

  return 0;

}

bool HWNetServer::isChiefClient(HWConnectedClient* cl) const

{

  return getChiefClient()==cl;

}

QMap<QString, QStringList> HWNetServer::getGameCfg() const

{

  return m_gameCfg;

  /*

  for(QList<HWConnectedClient*>::const_iterator it=connclients.begin(); it!=connclients.end(); ++it) {

    if(isChiefClient(*it)) {

      return (*it)->m_gameCfg;

    }

  }

  // error happened if we are here

  return QMap<QString, QStringList>();

  */

}

bool HWNetServer::haveNick(const QString& nick) const

{

  for(QList<HWConnectedClient*>::const_iterator it=connclients.begin(); it!=connclients.end(); ++it) {

    if((*it)->getClientNick()==nick) {

      return true;

    }

  }

  return false;

}

QList<QStringList> HWNetServer::getTeamsConfig() const

{

  QList<QStringList> lst;

  for(QList<HWConnectedClient*>::const_iterator it=connclients.begin(); it!=connclients.end(); ++it) {

    try {

      lst+=(*it)->getTeamNames();

    } catch(HWConnectedClient::NoTeamNameException& e) {

    }

  }

  return lst;

}

bool HWNetServer::shouldStart(HWConnectedClient* client)

{

  QList<HWConnectedClient*>::iterator it=std::find(connclients.begin(), connclients.end(), client);

  if(it==connclients.end() || *it!=client) return false;

  for(it=connclients.begin(); it!=connclients.end(); ++it) {

    if(!(*it)->isReady()) return false;

  }

  return true;

}

void HWNetServer::resetStart()

{

  QList<HWConnectedClient*>::iterator it;

  for(it=connclients.begin(); it!=connclients.end(); ++it) {

    (*it)->readyToStart=false;

  }

}

QString HWNetServer::prepareConfig(QStringList lst)

{

  QString msg=lst.join((QString)delimeter)+delimeter;

  for(QList<HWConnectedClient*>::iterator it=connclients.begin(); it!=connclients.end(); ++it) {

    if(!(*it)->isReady()) continue;

    msg+=(*it)->getHedgehogsDescription()+delimeter;

  }

  qDebug() << msg;

  return msg;

}

void HWNetServer::sendAll(QString gameCfg)

{

  for(QList<HWConnectedClient*>::iterator it=connclients.begin(); it!=connclients.end(); ++it) {

    (*it)->RawSendNet(gameCfg);

  }

}

void HWNetServer::sendOthers(HWConnectedClient* this_cl, QString gameCfg)

{

  for(QList<HWConnectedClient*>::iterator it=connclients.begin(); it!=connclients.end(); ++it) {

    if(*it==this_cl) continue;

    (*it)->RawSendNet(gameCfg);

  }

}