/*********
*
* This file is part of BibleTime's source code, http://www.bibletime.info/.
*
* Copyright 1999-2008 by the BibleTime developers.
* The BibleTime source code is licensed under the GNU General Public License version 2.0.
*
**********/

#include "cprofile.h"
#include "util/directoryutil.h"

//Qt includes
#include <QFile>
#include <QString>
#include <QTextStream>
#include <QDomDocument>

#define CURRENT_SYNTAX_VERSION 3

namespace Profile {

CProfile::CProfile( const QString& file, const QString& name )
	: m_name(name.isEmpty() ? QObject::tr("unknown") : name),
	m_filename(file),
	m_fullscreen(false),
	m_geometry(10,20,640,480),
	m_mdiArrangementMode((CMDIArea::MDIArrangementMode)0) //0 is not a valid enum entry, means "unknown"
{
	if (!m_filename.isEmpty() && name.isEmpty()) {
		loadBasics();
	}
	else if (m_filename.isEmpty() && !name.isEmpty()) {
		m_filename = name;
		m_filename.replace(QRegExp("\\s=#."),"_");
		m_filename = util::filesystem::DirectoryUtil::getUserSessionsDir().absolutePath() + "/"  + m_filename + ".xml";
		init(m_filename);
	}
	else {
		qWarning("CProfile: empty file name!");
	}
}

CProfile::~CProfile() {
	qDeleteAll(m_profileWindows); //there's no autodelete feature in qt4
	m_profileWindows.clear();  //delete all CProfileWindows objects
}

/** Loads the profile from the file given in the constructor. */
QList<CProfileWindow*> CProfile::load() {
	QFile file(m_filename);
	if (!file.exists())
	{
		//qWarning() << "Standard profile not found at filename " << m_filename;
		return QList<CProfileWindow*>();
	}

	QDomDocument doc;
	if (file.open(QIODevice::ReadOnly)) {
		QTextStream t( &file );
		t.setCodec("UTF-8");
		doc.setContent(t.readAll());
		file.close();
	}

	QDomElement document = doc.documentElement();
	if( document.tagName() != "BibleTimeProfile" && document.tagName() != "BibleTime" ) { //BibleTime was used in syntax version 1.0
		qWarning("CProfile::load: Missing BibleTime doc");
		return m_profileWindows;
	}
	if (document.hasAttribute("name")) {
		m_name = document.attribute("name");
	}

	//load settings of the main window
	{
		// see if there's a section with the name MAINWINDOW
		QDomElement elem = document.firstChild().toElement();
		QDomElement mainWindow;
		while (!elem.isNull()) {
			if (elem.tagName() == "MAINWINDOW") {
				mainWindow = elem;
				break; //found the element
			}
			elem = elem.nextSibling().toElement();
		}
		if (!mainWindow.isNull()) { //was found
			setFullscreen( (bool)mainWindow.attribute("fullscreen").toInt());
			
			QByteArray bstate;
			bstate += mainWindow.attribute("state");
			setMainwindowState(QByteArray::fromHex(bstate));
			
			QDomElement geometry_element = mainWindow.namedItem("GEOMETRY").toElement();
			QRect rect;
			if(!geometry_element.isNull()) {
				if (geometry_element.hasAttribute("x")) {
					rect.setX(geometry_element.attribute("x").toInt());
				}
				if (geometry_element.hasAttribute("y")) {
					rect.setY(geometry_element.attribute("y").toInt());
				}
				if (geometry_element.hasAttribute("width")) {
					rect.setWidth(geometry_element.attribute("width").toInt());
				}
				if (geometry_element.hasAttribute("height")) {
					rect.setHeight(geometry_element.attribute("height").toInt());
				}
				if (geometry_element.hasAttribute("isMaximized")) {
					this->setMaximized( static_cast<bool>(geometry_element.attribute("isMaximized").toInt()) );
				}
				setGeometry(rect);
			}

			QDomElement mdi_element = mainWindow.namedItem("MDI").toElement();
			if(!mdi_element.isNull()) {
				if (mdi_element.hasAttribute("ArrangementMode")) {
					this->setMDIArrangementMode((CMDIArea::MDIArrangementMode)mdi_element.attribute("ArrangementMode").toInt());
				}
			}
		}
	}

	m_profileWindows.clear();
	QDomElement elem = document.firstChild().toElement();
	while (!elem.isNull()) {
		CProfileWindow* p = 0;
		if (elem.tagName() == "BIBLE") {
			p = new CProfileWindow(CSwordModuleInfo::Bible);
		}
		else if (elem.tagName() == "COMMENTARY") {
			p = new CProfileWindow(CSwordModuleInfo::Commentary);
		}
		else if (elem.tagName() == "LEXICON") {
			p = new CProfileWindow(CSwordModuleInfo::Lexicon);
		}
		else if (elem.tagName() == "BOOK") {
			p = new CProfileWindow(CSwordModuleInfo::GenericBook);
		}

		if (p) {
			m_profileWindows.append(p);

			if (elem.hasAttribute("windowSettings")) {
				p->setWindowSettings( elem.attribute("windowSettings").toInt() );
			}
			if (elem.hasAttribute("writeWindowType")) {
				p->setWriteWindowType( elem.attribute("writeWindowType").toInt() );
			}
			if (elem.hasAttribute("hasFocus")) {
				p->setFocus( static_cast<bool>(elem.attribute("hasFocus").toInt()) );
			}

			QRect rect;

			QDomElement object = elem.namedItem("GEOMETRY").toElement();
			if(!object.isNull()) {
				if (object.hasAttribute("x")) {
					rect.setX(object.attribute("x").toInt());
				}
				if (object.hasAttribute("y")) {
					rect.setY(object.attribute("y").toInt());
				}
				if (object.hasAttribute("width")) {
					rect.setWidth(object.attribute("width").toInt());
				}
				if (object.hasAttribute("height")) {
					rect.setHeight(object.attribute("height").toInt());
				}
				if (object.hasAttribute("isMaximized")) {
					p->setMaximized( static_cast<bool>(object.attribute("isMaximized").toInt()) );
				}
			}
			p->setGeometry(rect);

			object = elem.namedItem("MODULES").toElement();
			if(!object.isNull()) {
				if (object.hasAttribute("list")) {
					const QString sep = object.hasAttribute("separator") ? object.attribute("separator") : "|";
					QStringList modules = object.attribute("list").split(sep);
					p->setModules(modules);
				}
			}

			object = elem.namedItem("KEY").toElement();
			if(!object.isNull()) {
				if (object.hasAttribute("name"))
					p->setKey(object.attribute("name"));
			}

			object = elem.namedItem("SCROLLBARS").toElement();
			if(!object.isNull()) {
				int horizontal = 0, vertical = 0;
				if (object.hasAttribute("horizontal"))
					horizontal = object.attribute("horizontal").toInt();
				if (object.hasAttribute("vertical"))
					vertical = object.attribute("vertical").toInt();

				p->setScrollbarPositions(horizontal, vertical);
			}
		}
		elem = elem.nextSibling().toElement();
	}
	return m_profileWindows;
}

/** Saves the profile to the file given in the constructor. */
bool CProfile::save(QList<CProfileWindow*> windows) {
	/** Save the settings using a XML file
	* Save the CProfileWindow objects using a XML file which name is in m_filename
	*/
	bool ret = false;
	QDomDocument doc("DOC");
	doc.appendChild( doc.createProcessingInstruction( "xml", "version=\"1.0\" encoding=\"UTF-8\"" ) );

	QDomElement content = doc.createElement("BibleTimeProfile");
	content.setAttribute("syntaxVersion", CURRENT_SYNTAX_VERSION);
	content.setAttribute("name", m_name);
	doc.appendChild(content);

	//save mainwindow settings
	{
		QDomElement mainWindow = doc.createElement("MAINWINDOW");
		mainWindow.setAttribute("fullscreen", fullscreen());
		
		QString sstate = QString(getMainwindowState().toHex());
		mainWindow.setAttribute("state", sstate);

		QDomElement geometry = doc.createElement("GEOMETRY");
		mainWindow.appendChild(geometry);
		const QRect r = this->geometry();
		geometry.setAttribute("x",r.x());
		geometry.setAttribute("y",r.y());
		geometry.setAttribute("width",r.width());
		geometry.setAttribute("height",r.height());
		geometry.setAttribute("isMaximized",static_cast<int>(this->maximized()));

		QDomElement mdi = doc.createElement("MDI");
		mainWindow.appendChild(mdi);
		mdi.setAttribute("ArrangementMode",static_cast<int>(this->getMDIArrangementMode()));

		content.appendChild(mainWindow);
	}

	//for (CProfileWindow* p = windows.first(); p; p = windows.next()) {
	foreach(CProfileWindow* p, windows) {
		QDomElement window;
		switch (p->type()) {
			case CSwordModuleInfo::Bible:
			window = doc.createElement("BIBLE");
			break;
			case CSwordModuleInfo::Commentary:
			window = doc.createElement("COMMENTARY");
			break;
			case CSwordModuleInfo::Lexicon:
			window = doc.createElement("LEXICON");
			break;
			case CSwordModuleInfo::GenericBook:
			window = doc.createElement("BOOK");
			break;
			default:
			break;
		}
		if (window.isNull())
			break;
		window.setAttribute("windowSettings", p->windowSettings());
		window.setAttribute("writeWindowType", p->writeWindowType());
		window.setAttribute("hasFocus", p->hasFocus());

		//save geomtery
		const QRect r = p->geometry();
		QDomElement geometry = doc.createElement("GEOMETRY");
		geometry.setAttribute("x",r.x());
		geometry.setAttribute("y",r.y());
		geometry.setAttribute("width",r.width());
		geometry.setAttribute("height",r.height());
		geometry.setAttribute("isMaximized",static_cast<int>(p->maximized()));
		window.appendChild( geometry );

		QDomElement modules = doc.createElement("MODULES");
		modules.setAttribute("separator", "|");
		modules.setAttribute("list", p->modules().join("|"));
		window.appendChild( modules );

		QDomElement key = doc.createElement("KEY");
		key.setAttribute("name", p->key());
		window.appendChild( key );

		QDomElement scrollbars = doc.createElement("SCROLLBARS");
		scrollbars.setAttribute("horizontal", p->scrollbarPositions().horizontal);
		scrollbars.setAttribute("vertical", p->scrollbarPositions().vertical);
		window.appendChild( scrollbars );

		content.appendChild( window );
	}

	QFile file(m_filename);
	if ( file.open(QIODevice::WriteOnly) ) {
		ret = true;
		QTextStream t( &file );
		t.setCodec("UTF-8");
		t << doc.toString();
		file.close();
	}
	else
		ret = false;

	return ret;
}

/** Saves the profile to the file given in the constructor. */
bool CProfile::save() {
	return save(m_profileWindows);
}

/** Returns the filename used for this profile. */
const QString& CProfile::filename() {
	return m_filename;
}

/** Returns the name of this profile. */
const QString& CProfile::name() {
	return m_name;
}

/** Initializes the XML for the first time (use to create a new profile) */
void CProfile::init(const QString file) {
	const QString oldFile = m_filename;
	m_filename = file;
	save(QList<CProfileWindow*>());
	m_filename = oldFile;
}

/** Changes the name of this profile. */
void CProfile::setName( const QString& newName ) {
	m_name = newName;
	saveBasics(); //save chanegd name
}

/** Loads the basic settings requires for proper operation. */
void CProfile::loadBasics() {
	QFile file(m_filename);
	if (!file.exists())
		return;

	QDomDocument doc;
	if (file.open(QIODevice::ReadOnly)) {
		QTextStream t( &file );
		t.setCodec("UTF-8");
		doc.setContent(t.readAll());
		file.close();
	}
	QDomElement document = doc.documentElement();
	if (document.hasAttribute("name"))
		m_name = document.attribute("name");
}

void CProfile::saveBasics() {
	QFile file(m_filename);
	if (!file.exists())
		return;

	QDomDocument doc;
	if (file.open(QIODevice::ReadOnly)) {
		QTextStream t(&file);
		t.setCodec("UTF-8");
		doc.setContent(t.readAll());
		file.close();
	}

	QDomElement document = doc.documentElement();
	document.setAttribute("name", m_name);

	if (file.open(QIODevice::WriteOnly)) {
		QTextStream t( &file );
		t.setCodec("UTF-8");
		t << doc.toString();
		file.close();
	}
}

/** Returns true if the main window was in fullscreen mode as the profile was saved. */
bool CProfile::fullscreen() const {
	return m_fullscreen;
}

/** Set the parameter to true if the main window coveres the full screen size. */
void CProfile::setFullscreen( const bool fullscreen ) {
	m_fullscreen = fullscreen;
}

/** Returns true if the main window was maximized as the profile was saved. */
bool CProfile::maximized() const {
	return m_maximized;
}

/** Set the parameter to true if the main window is maximized. */
void CProfile::setMaximized( const bool maximized ) {
	m_maximized = maximized;
}

/** Returns the geometry of the main window */
const QRect CProfile::geometry() {
	return m_geometry;
}

/** Stes the geoemtry of the main window */
void CProfile::setGeometry( const QRect rect ) {
	m_geometry = rect;
}

void CProfile::setMDIArrangementMode(const CMDIArea::MDIArrangementMode newArrangementMode)
{
	m_mdiArrangementMode = newArrangementMode;
}

CMDIArea::MDIArrangementMode CProfile::getMDIArrangementMode(void)
{
	return m_mdiArrangementMode;
}

void CProfile::setMainwindowState(const QByteArray& state)
{
	m_mainwindowState = state;
}

QByteArray CProfile::getMainwindowState()
{
	return m_mainwindowState;
}


} //end of namespace Profile