/********************************************************************************
* FaceTrackNoIR		This program is a private project of the some enthusiastic	*
*					gamers from Holland, who don't like to pay much for			*
*					head-tracking.												*
*																				*
* Copyright (C) 2010	Wim Vriend (Developing)									*
*						Ron Hendriks (Researching and Testing)					*
*																				*
* Homepage																		*
*																				*
* 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/>.				*
*																				*
* FGServer			FGServer is the Class, that communicates headpose-data		*
*					to FlightGear, using UDP.				         			*
*					It is based on the (Linux) example made by Melchior FRANZ.	*
********************************************************************************/
#include "ftnoir_protocol_fg.h"
#include <QObject>
#include <QFile>
#include "facetracknoir/global-settings.h"

//*******************************************************************************************************
// FaceTrackNoIR Client Settings-dialog.
//*******************************************************************************************************

//
// Constructor for server-settings-dialog
//
FGControls::FGControls() :
QWidget()
{
	ui.setupUi( this );

	QPoint offsetpos(100, 100);
	//if (parent) {
	//	this->move(parent->pos() + offsetpos);
	//}

	// Connect Qt signals to member-functions
	connect(ui.btnOK, SIGNAL(clicked()), this, SLOT(doOK()));
	connect(ui.btnCancel, SIGNAL(clicked()), this, SLOT(doCancel()));
	connect(ui.chkLocalPC, SIGNAL(stateChanged(int)), this, SLOT(chkLocalPCOnlyChanged()));
	connect(ui.spinIPFirstNibble, SIGNAL(valueChanged(int)), this, SLOT(settingChanged()));
	connect(ui.spinIPSecondNibble, SIGNAL(valueChanged(int)), this, SLOT(settingChanged()));
	connect(ui.spinIPThirdNibble, SIGNAL(valueChanged(int)), this, SLOT(settingChanged()));
	connect(ui.spinIPFourthNibble, SIGNAL(valueChanged(int)), this, SLOT(settingChanged()));
	connect(ui.spinPortNumber, SIGNAL(valueChanged(int)), this, SLOT(settingChanged()));

	theProtocol = NULL;

	// Load the settings from the current .INI-file
	loadSettings();
}

//
// Destructor for server-dialog
//
FGControls::~FGControls() {
	qDebug() << "~FGControls() says: started";
}

//
// Initialize tracker-client-dialog
//
void FGControls::Initialize(QWidget *parent) {

	QPoint offsetpos(100, 100);
	if (parent) {
		this->move(parent->pos() + offsetpos);
	}
	show();
}

//
// OK clicked on server-dialog
//
void FGControls::doOK() {
	save();
	this->close();
}

// override show event
void FGControls::showEvent ( QShowEvent * event ) {
	loadSettings();
}

//
// Cancel clicked on server-dialog
//
void FGControls::doCancel() {
	//
	// Ask if changed Settings should be saved
	//
	if (settingsDirty) {
		int ret = QMessageBox::question ( this, "Settings have changed", "Do you want to save the settings?", QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Discard );

		qDebug() << "doCancel says: answer =" << ret;

		switch (ret) {
			case QMessageBox::Save:
				save();
				this->close();
				break;
			case QMessageBox::Discard:
				this->close();
				break;
			case QMessageBox::Cancel:
				// Cancel was clicked
				break;
			default:
				// should never be reached
			break;
		}
	}
	else {
		this->close();
	}
}

//
// Load the current Settings from the currently 'active' INI-file.
//
void FGControls::loadSettings() {
//	qDebug() << "loadSettings says: Starting ";
	QSettings settings("opentrack");	// Registry settings (in HK_USER)

	QString currentFile = settings.value ( "SettingsFile", QCoreApplication::applicationDirPath() + "/settings/default.ini" ).toString();
	QSettings iniFile( currentFile, QSettings::IniFormat );		// Application settings (in INI-file)

//	qDebug() << "loadSettings says: iniFile = " << currentFile;

	iniFile.beginGroup ( "FG" );
	ui.chkLocalPC->setChecked (iniFile.value ( "LocalPCOnly", 1 ).toBool());

	ui.spinIPFirstNibble->setValue( iniFile.value ( "IP-1", 192 ).toInt() );
	ui.spinIPSecondNibble->setValue( iniFile.value ( "IP-2", 168 ).toInt() );
	ui.spinIPThirdNibble->setValue( iniFile.value ( "IP-3", 2 ).toInt() );
	ui.spinIPFourthNibble->setValue( iniFile.value ( "IP-4", 1 ).toInt() );

    ui.spinPortNumber->setValue( iniFile.value ( "PortNumber", 5542 ).toInt() );
	iniFile.endGroup ();

	chkLocalPCOnlyChanged();	
	settingsDirty = false;
}

//
// Save the current Settings to the currently 'active' INI-file.
//
void FGControls::save() {
	QSettings settings("opentrack");	// Registry settings (in HK_USER)

	QString currentFile = settings.value ( "SettingsFile", QCoreApplication::applicationDirPath() + "/settings/default.ini" ).toString();
	QSettings iniFile( currentFile, QSettings::IniFormat );		// Application settings (in INI-file)

	iniFile.beginGroup ( "FG" );
	iniFile.setValue ( "LocalPCOnly", ui.chkLocalPC->isChecked() );
	iniFile.setValue ( "IP-1", ui.spinIPFirstNibble->value() );
	iniFile.setValue ( "IP-2", ui.spinIPSecondNibble->value() );
	iniFile.setValue ( "IP-3", ui.spinIPThirdNibble->value() );
	iniFile.setValue ( "IP-4", ui.spinIPFourthNibble->value() );
	iniFile.setValue ( "PortNumber", ui.spinPortNumber->value() );
	iniFile.endGroup ();

	settingsDirty = false;
}

//
// Handle change of the checkbox.
//
void FGControls::chkLocalPCOnlyChanged() {

	if ( ui.chkLocalPC->isChecked() ) {
		ui.spinIPFirstNibble->setValue( 127 );
		ui.spinIPFirstNibble->setEnabled ( false );
		ui.spinIPSecondNibble->setValue( 0 );
		ui.spinIPSecondNibble->setEnabled ( false );
		ui.spinIPThirdNibble->setValue( 0 );
		ui.spinIPThirdNibble->setEnabled ( false );
		ui.spinIPFourthNibble->setValue( 1 );
		ui.spinIPFourthNibble->setEnabled ( false );
	}
	else {
		ui.spinIPFirstNibble->setEnabled ( true );
		ui.spinIPSecondNibble->setEnabled ( true );
		ui.spinIPThirdNibble->setEnabled ( true );
		ui.spinIPFourthNibble->setEnabled ( true );
	}

	settingsDirty = true;
}

////////////////////////////////////////////////////////////////////////////////
// Factory function that creates instances if the Protocol-settings dialog object.

// Export both decorated and undecorated names.
//   GetProtocolDialog     - Undecorated name, which can be easily used with GetProcAddress
//                          Win32 API function.
//   _GetProtocolDialog@0  - Common name decoration for __stdcall functions in C language.
//#pragma comment(linker, "/export:GetProtocolDialog=_GetProtocolDialog@0")

extern "C" FTNOIR_PROTOCOL_BASE_EXPORT IProtocolDialog* CALLING_CONVENTION GetDialog( )
{
    return new FGControls;
}