/*

 * Hedgewars, a worms-like game

 * Copyright (c) 2005-2007 Andrey Korotaev <unC0Rr@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 <QStringList>

#include <QProcess>

#include <QDir>

#include <QPixmap>

#include <QRegExp>

#include <QIcon>

#include <QFile>

#include <QTextStream>

#include <QMessageBox>

#include <QPushButton>

#include <QListWidget>

#include <QStackedLayout>

#include <QLineEdit>

#include <QLabel>

#include "hwform.h"

#include "game.h"

#include "team.h"

#include "teamselect.h"

#include "gameuiconfig.h"

#include "pages.h"

#include "hwconsts.h"

#include "newnetclient.h"

#include "gamecfgwidget.h"

#include "netudpserver.h"

#include "netudpwidget.h"

#include "chatwidget.h"

HWForm::HWForm(QWidget *parent)

  : QMainWindow(parent), pnetserver(0), pUdpServer(0)

{

	ui.setupUi(this);

	config = new GameUIConfig(this, cfgdir->absolutePath() + "/hedgewars.ini");

	UpdateTeamsLists();

	connect(ui.pageMain->BtnSinglePlayer,	SIGNAL(clicked()),	this, SLOT(GoToSinglePlayer()));

	connect(ui.pageMain->BtnSetup,	SIGNAL(clicked()),	this, SLOT(GoToSetup()));

	connect(ui.pageMain->BtnMultiplayer,	SIGNAL(clicked()),	this, SLOT(GoToMultiplayer()));

	connect(ui.pageMain->BtnDemos,	SIGNAL(clicked()),	this, SLOT(GoToDemos()));

	connect(ui.pageMain->BtnNet,	SIGNAL(clicked()),	this, SLOT(GoToNet()));

	connect(ui.pageMain->BtnInfo,	SIGNAL(clicked()),	this, SLOT(GoToInfo()));

	connect(ui.pageMain->BtnExit, SIGNAL(clicked()), this, SLOT(close()));

	connect(ui.pageLocalGame->BtnBack,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pageLocalGame->BtnSimpleGame,	SIGNAL(clicked()),	this, SLOT(SimpleGame()));

	connect(ui.pageEditTeam->BtnTeamSave,	SIGNAL(clicked()),	this, SLOT(TeamSave()));

	connect(ui.pageEditTeam->BtnTeamDiscard,	SIGNAL(clicked()),	this, SLOT(TeamDiscard()));

	connect(ui.pageMultiplayer->BtnBack,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pageMultiplayer->BtnStartMPGame,	SIGNAL(clicked()),	this, SLOT(StartMPGame()));

	connect(ui.pageMultiplayer->teamsSelect, SIGNAL(setEnabledGameStart(bool)),

		ui.pageMultiplayer->BtnStartMPGame, SLOT(setEnabled(bool)));

	connect(ui.pagePlayDemo->BtnBack,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pagePlayDemo->BtnPlayDemo,	SIGNAL(clicked()),	this, SLOT(PlayDemo()));

	connect(ui.pagePlayDemo->DemosList,	SIGNAL(doubleClicked (const QModelIndex &)),	this, SLOT(PlayDemo()));

	connect(ui.pageOptions->BtnBack,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pageOptions->BtnNewTeam,	SIGNAL(clicked()),	this, SLOT(NewTeam()));

	connect(ui.pageOptions->BtnEditTeam,	SIGNAL(clicked()),	this, SLOT(EditTeam()));

	connect(ui.pageOptions->BtnSaveOptions,	SIGNAL(clicked()),	config, SLOT(SaveOptions()));

	connect(ui.pageOptions->BtnSaveOptions,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pageNet->BtnBack,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pageNet->BtnNetConnect,	SIGNAL(clicked()),	this, SLOT(NetConnect()));

	connect(ui.pageNet->BtnNetSvrStart, SIGNAL(clicked()), this, SLOT(NetStartServer()));

	connect(ui.pageMain->BtnNet,	SIGNAL(clicked()), ui.pageNet->pUdpClient, SLOT(updateList()));

	connect(ui.pageNet->pUpdateUdpButt, SIGNAL(clicked()), ui.pageNet->pUdpClient, SLOT(updateList()));

	connect(ui.pageNet->pUdpClient->serversList,	SIGNAL(doubleClicked (const QModelIndex &)),	this, SLOT(NetConnectServer()));

	connect(ui.pageNetGame->BtnBack,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pageNetGame->BtnGo,	SIGNAL(clicked()),	this, SLOT(NetStartGame()));

	connect(ui.pageNetGame->pNetTeamsWidget, SIGNAL(setEnabledGameStart(bool)),

		ui.pageNetGame->BtnGo, SLOT(setEnabled(bool)));

	connect(ui.pageNetGame->pNetTeamsWidget, SIGNAL(NewTeam()), this, SLOT(NewTeam()));

	connect(ui.pageInfo->BtnBack,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pageGameStats->BtnBack,	SIGNAL(clicked()),	this, SLOT(GoBack()));

	connect(ui.pageMultiplayer->teamsSelect, SIGNAL(NewTeam()), this, SLOT(NewTeam()));

	GoToPage(ID_PAGE_MAIN);

}

void HWForm::UpdateTeamsLists()

{

	QStringList teamslist = config->GetTeamsList();

	if(teamslist.empty()) {

		HWTeam defaultTeam("DefaultTeam");

		defaultTeam.SaveToFile();

		teamslist.push_back("DefaultTeam");

	}

	ui.pageOptions->CBTeamName->clear();

	ui.pageOptions->CBTeamName->addItems(teamslist);

}

void HWForm::GoToMain()

{

	GoToPage(ID_PAGE_MAIN);

}

void HWForm::GoToSinglePlayer()

{

	GoToPage(ID_PAGE_SINGLEPLAYER);

}

void HWForm::GoToSetup()

{

	GoToPage(ID_PAGE_SETUP);

}

void HWForm::GoToInfo()

{

	GoToPage(ID_PAGE_INFO);

}

void HWForm::GoToMultiplayer()

{

	GoToPage(ID_PAGE_MULTIPLAYER);

}

void HWForm::GoToDemos()

{

	QDir tmpdir;

	tmpdir.cd(cfgdir->absolutePath());

	tmpdir.cd("Demos");

	tmpdir.setFilter(QDir::Files);

	ui.pagePlayDemo->DemosList->clear();

	ui.pagePlayDemo->DemosList->addItems(tmpdir.entryList(QStringList("*.hwd_" + cProtoVer))

			.replaceInStrings(QRegExp("^(.*).hwd_" + cProtoVer), "\\1"));

	GoToPage(ID_PAGE_DEMOS);

}

void HWForm::GoToNet()

{

	GoToPage(ID_PAGE_NET);

}

void HWForm::OnPageShown(quint8 id, quint8 lastid)

{

	if (id == ID_PAGE_MULTIPLAYER || id == ID_PAGE_NETCFG) {

		QStringList tmNames=config->GetTeamsList();

		TeamSelWidget* curTeamSelWidget;

		if(id == ID_PAGE_MULTIPLAYER) {

		  curTeamSelWidget=ui.pageMultiplayer->teamsSelect;

		} else {

		  curTeamSelWidget=ui.pageNetGame->pNetTeamsWidget;

		}

		QList<HWTeam> teamsList;

		for(QStringList::iterator it=tmNames.begin(); it!=tmNames.end(); it++) {

		  HWTeam team(*it);

		  team.LoadFromFile();

		  teamsList.push_back(team);

		}

		if(lastid==ID_PAGE_SETUP_TEAM) {

		  if (editedTeam) curTeamSelWidget->addTeam(*editedTeam);

		} else {

		  curTeamSelWidget->resetPlayingTeams(teamsList);

		}

	}

}

void HWForm::GoToPage(quint8 id)

{

	PagesStack.push(ui.Pages->currentIndex());

	OnPageShown(id);

	ui.Pages->setCurrentIndex(id);

}

void HWForm::GoBack()

{

	if (!PagesStack.isEmpty() && PagesStack.top() == ID_PAGE_NET) {

	  if(hwnet || pnetserver) NetDisconnect();

	}

	quint8 id = PagesStack.isEmpty() ? ID_PAGE_MAIN : PagesStack.pop();

	OnPageShown(id, ui.Pages->currentIndex());

	ui.Pages->setCurrentIndex(id);

}

void HWForm::NewTeam()

{

	editedTeam = new HWTeam("unnamed");

	editedTeam->SetToPage(this);

	GoToPage(ID_PAGE_SETUP_TEAM);

}

void HWForm::EditTeam()

{

	editedTeam = new HWTeam(ui.pageOptions->CBTeamName->currentText());

	editedTeam->LoadFromFile();

	editedTeam->SetToPage(this);

	GoToPage(ID_PAGE_SETUP_TEAM);

}

void HWForm::TeamSave()

{

	editedTeam->GetFromPage(this);

	editedTeam->SaveToFile();

	UpdateTeamsLists();

	GoBack();

	delete editedTeam;

	editedTeam=0;

}

void HWForm::TeamDiscard()

{

	delete editedTeam;

	editedTeam=0;

	GoBack();

}

void HWForm::SimpleGame()

{

	CreateGame(ui.pageLocalGame->gameCFG, 0);

	game->StartQuick();

}

void HWForm::PlayDemo()

{

	QListWidgetItem * curritem = ui.pagePlayDemo->DemosList->currentItem();

	if (!curritem)

	{

		QMessageBox::critical(this,

				tr("Error"),

				tr("Please, select demo from the list above"),

				tr("OK"));

		return ;

	}

	CreateGame(0, 0);

	game->PlayDemo(cfgdir->absolutePath() + "/Demos/" + curritem->text() + ".hwd_" + cProtoVer);

}

void HWForm::NetConnectServer()

{

  QListWidgetItem * curritem = ui.pageNet->pUdpClient->serversList->currentItem();

  if (!curritem) {

    QMessageBox::critical(this,

			  tr("Error"),

			  tr("Please, select server from the list above"),

			  tr("OK"));

    return ;

  }

  _NetConnect(curritem->text(), 46631, ui.pageNet->editNetNick->text());

}

void HWForm::_NetConnect(const QString & hostName, quint16 port, const QString & nick)

{

	ui.pageNetGame->pChatWidget->clear();

	hwnet = new HWNewNet(config, ui.pageNetGame->pGameCFG, ui.pageNetGame->pNetTeamsWidget);

	connect(hwnet, SIGNAL(GameStateChanged(GameState)), this, SLOT(NetGameStateChanged(GameState)));

	connect(hwnet, SIGNAL(EnteredGame()), this, SLOT(NetGameEnter()));

	connect(hwnet, SIGNAL(AddNetTeam(const HWTeam&)), this, SLOT(AddNetTeam(const HWTeam&)));

	connect(hwnet, SIGNAL(chatStringFromNet(const QStringList&)),

		ui.pageNetGame->pChatWidget, SLOT(onChatStringFromNet(const QStringList&)));

	connect(ui.pageNetGame->pChatWidget, SIGNAL(chatLine(const QString&)),

		hwnet, SLOT(chatLineToNet(const QString&)));

	connect(hwnet, SIGNAL(nickAdded(const QString&)),

		ui.pageNetGame->pChatWidget, SLOT(nickAdded(const QString&)));

	connect(hwnet, SIGNAL(nickRemoved(const QString&)),

		ui.pageNetGame->pChatWidget, SLOT(nickRemoved(const QString&)));

	connect(ui.pageNetGame->pNetTeamsWidget, SIGNAL(hhogsNumChanged(const HWTeam&)),

		hwnet, SLOT(onHedgehogsNumChanged(const HWTeam&)));

	connect(ui.pageNetGame->pNetTeamsWidget, SIGNAL(teamColorChanged(const HWTeam&)),

		hwnet, SLOT(onTeamColorChanged(const HWTeam&)));

	connect(ui.pageNetGame->pNetTeamsWidget, SIGNAL(teamWillPlay(HWTeam)), hwnet, SLOT(AddTeam(HWTeam)));

	connect(ui.pageNetGame->pNetTeamsWidget, SIGNAL(acceptRequested(HWTeam)), hwnet, SLOT(AddTeam(HWTeam)));

	connect(ui.pageNetGame->pNetTeamsWidget, SIGNAL(teamNotPlaying(const HWTeam&)), hwnet, SLOT(RemoveTeam(const HWTeam&)));

	connect(ui.pageNetGame->pGameCFG, SIGNAL(seedChanged(const QString &)), hwnet, SLOT(onSeedChanged(const QString &)));

	connect(ui.pageNetGame->pGameCFG, SIGNAL(mapChanged(const QString &)), hwnet, SLOT(onMapChanged(const QString &)));

	connect(ui.pageNetGame->pGameCFG, SIGNAL(themeChanged(const QString &)), hwnet, SLOT(onThemeChanged(const QString &)));

	connect(ui.pageNetGame->pGameCFG, SIGNAL(initHealthChanged(quint32)), hwnet, SLOT(onInitHealthChanged(quint32)));

	connect(ui.pageNetGame->pGameCFG, SIGNAL(turnTimeChanged(quint32)), hwnet, SLOT(onTurnTimeChanged(quint32)));

	connect(ui.pageNetGame->pGameCFG, SIGNAL(fortsModeChanged(bool)), hwnet, SLOT(onFortsModeChanged(bool)));

	connect(hwnet, SIGNAL(Disconnected()), this, SLOT(ForcedDisconnect()));

	connect(hwnet, SIGNAL(seedChanged(const QString &)), ui.pageNetGame->pGameCFG, SLOT(setSeed(const QString &)));

	connect(hwnet, SIGNAL(mapChanged(const QString &)), ui.pageNetGame->pGameCFG, SLOT(setMap(const QString &)));

	connect(hwnet, SIGNAL(themeChanged(const QString &)), ui.pageNetGame->pGameCFG, SLOT(setTheme(const QString &)));

	connect(hwnet, SIGNAL(initHealthChanged(quint32)), ui.pageNetGame->pGameCFG, SLOT(setInitHealth(quint32)));

	connect(hwnet, SIGNAL(turnTimeChanged(quint32)), ui.pageNetGame->pGameCFG, SLOT(setTurnTime(quint32)));

	connect(hwnet, SIGNAL(fortsModeChanged(bool)), ui.pageNetGame->pGameCFG, SLOT(setFortsMode(bool)));

	connect(hwnet, SIGNAL(hhnumChanged(const HWTeam&)),

		ui.pageNetGame->pNetTeamsWidget, SLOT(changeHHNum(const HWTeam&)));

	connect(hwnet, SIGNAL(teamColorChanged(const HWTeam&)),

		ui.pageNetGame->pNetTeamsWidget, SLOT(changeTeamColor(const HWTeam&)));

	hwnet->Connect(hostName, port, nick);

	config->SaveOptions();

}

void HWForm::NetConnect()

{

  _NetConnect(ui.pageNet->editIP->text(), 46631, ui.pageNet->editNetNick->text());

}

void HWForm::NetStartServer()

{

  pnetserver = new HWNetServer;

  pnetserver->StartServer();

  _NetConnect("localhost", pnetserver->getRunningPort(), ui.pageNet->editNetNick->text());

  pUdpServer = new HWNetUdpServer();

}

void HWForm::NetDisconnect()

{

  if(hwnet) {

    hwnet->Disconnect();

    delete hwnet;

    hwnet=0;

  }

  if(pnetserver) {

    pUdpServer->deleteLater();

    pnetserver->StopServer();

    delete pnetserver;

    pnetserver=0;

  }

}

void HWForm::ForcedDisconnect()

{

  if(pnetserver) return; // we have server - let it care of all things

  if (hwnet) {

    hwnet->deleteLater();

    hwnet=0;

    QMessageBox::warning(this, QMessageBox::tr("Network"),

			 QMessageBox::tr("Connection to server is lost"));

  }

  GoBack();

}

void HWForm::NetGameEnter()

{

	GoToPage(ID_PAGE_NETCFG);

}

void HWForm::NetStartGame()

{

  ui.pageNetGame->BtnGo->setText(QPushButton::tr("Waiting"));

  ui.pageNetGame->BtnGo->setEnabled(false);

  hwnet->StartGame();

}

void HWForm::AddNetTeam(const HWTeam& team)

{

  ui.pageNetGame->pNetTeamsWidget->addTeam(team);

}

void HWForm::StartMPGame()

{

	CreateGame(ui.pageMultiplayer->gameCFG, ui.pageMultiplayer->teamsSelect);

	game->StartLocal();

}

void HWForm::NetGameStateChanged(GameState __attribute__((unused)) gameState)

{

  ui.pageNetGame->BtnGo->setText(QPushButton::tr("Go!"));

  ui.pageNetGame->BtnGo->setEnabled(true);

}

void HWForm::GameStateChanged(GameState gameState)

{

	switch(gameState) {

		case gsStarted: {

			ui.pageGameStats->labelGameStats->setText("");

			break;

		}

		case gsFinished: {

			GoToPage(ID_PAGE_GAMESTATS);

			break;

		}

		default: ;

	}

}

void HWForm::AddStatText(const QString & msg)

{

	ui.pageGameStats->labelGameStats->setText(

		ui.pageGameStats->labelGameStats->text() + msg);

}

void HWForm::GameStats(char type, const QString & info)

{

	switch(type) {

		case 'r' : {

			AddStatText(QString("<h1 align=\"center\">%1</h1>").arg(info));

			break;

		}

		case 'D' : {

			int i = info.indexOf(' ');

			QString message = QLabel::tr("<p>The best shot award was won by <b>%1</b> with <b>%2</b> pts.</p>")

					.arg(info.mid(i + 1), info.left(i));

			AddStatText(message);

			break;

		}

		case 'K' : {

			QString message = QLabel::tr("<p>A total of <b>%1</b> Hedgehog(s) were killed during this round.</p>").arg(info);

			AddStatText(message);

			break;

		}

	}

}

void HWForm::CreateGame(GameCFGWidget * gamecfg, TeamSelWidget* pTeamSelWidget)

{

	game = new HWGame(config, gamecfg, pTeamSelWidget);

	connect(game, SIGNAL(GameStateChanged(GameState)), this, SLOT(GameStateChanged(GameState)));

	connect(game, SIGNAL(GameStats(char, const QString &)), this, SLOT(GameStats(char, const QString &)));

	connect(game, SIGNAL(ErrorMessage(const QString &)), this, SLOT(ShowErrorMessage(const QString &)), Qt::QueuedConnection);

}

void HWForm::ShowErrorMessage(const QString & msg)

{

	QMessageBox::warning(this,

			"Hedgewars",

			msg);

}