#include <iostream>

 #include <qregexp.h>

 #include "settings.h"

 using namespace std;

 bool loadStringFromDisk (const QString &fname, QString &s)

 {

 	s="";

 	QFile file ( fname);

 	if ( !file.open( IO_ReadOnly ) ) return false;

 	QTextStream ts( &file );

 	ts.setEncoding (QTextStream::UnicodeUTF8);

 	while ( !ts.atEnd() ) 

 		s+=ts.readLine()+"\n"; 

 	file.close();

 	return true;

 }

 bool saveStringToDisk (const QString &fname, const QString &s)

 {

 	QFile file( fname);

 	file.setName ( fname);

 	if ( !file.open( IO_WriteOnly ) ) 

 	{

 		file.close();

 		return false;

 	}	

 	// Write it finally, and write in UTF8, no matter what 

 	QTextStream ts( &file );

 	ts.setEncoding (QTextStream::UnicodeUTF8);

 	ts << s;

 	file.close();

 	return true;

 }

 /////////////////////////////////////////////////////////////////

 // SimpleSettings

 /////////////////////////////////////////////////////////////////

 SimpleSettings::SimpleSettings()

 {

 	clear();		 

 }

 SimpleSettings::~SimpleSettings()

 {

 }

 void SimpleSettings::clear()

 {

 	keylist.clear();

 	valuelist.clear();

 }

 void SimpleSettings::readSettings (const QString &path)

 {

 	QString s;

 	if (!loadStringFromDisk(path,s)) 

 	{

 		qWarning ("SimpleSettings::readSettings() Couldn't read "+path);

 		return;

 	}	

 	QStringList lines;

 	lines=QStringList::split (QRegExp("\n"),s,false);

 	int i;

 	QStringList::Iterator it=lines.begin();

 	while (it !=lines.end() )

 	{

 		i=(*it).find("=",0);

 		keylist.append((*it).left(i));

 		valuelist.append((*it).right((*it).length()-i-1));

 		it++;

 	}

 }

 void SimpleSettings::writeSettings (const QString &path)

 {

 	QString s;

 	QStringList::Iterator itk=keylist.begin();

 	QStringList::Iterator itv=valuelist.begin();

 	// First search for value in settings saved in map

 	while (itk !=keylist.end() )

 	{

 		s+=*itk+"="+*itv+"\n";

 		itk++;

 		itv++;

 	}

 	if (!saveStringToDisk(path,s)) 

 		qWarning ("SimpleSettings::writeSettings() Couldn't write "+path);

 }

 QString SimpleSettings::readEntry (const QString &key)

 {

 	QStringList::Iterator itk=keylist.begin();

 	QStringList::Iterator itv=valuelist.begin();

 	// First search for value in settings saved in map

 	while (itk !=keylist.end() )

 	{

 		if (*itk == key)

 			return *itv;

 		itk++;

 		itv++;

 	}

 	qWarning ("SimpleSettings::readEntry()  Couldn't find key "+key);

 	return "";

 }

 void SimpleSettings::setEntry (const QString &key, const QString &value)

 {

 	QStringList::Iterator itk=keylist.begin();

 	QStringList::Iterator itv=valuelist.begin();

 	if (!key.isEmpty() )

 	{

 		// Search for existing entry first

 		while (itk !=keylist.end() )

 		{

 			if (*itk == key)

 			{

 				if (!value.isEmpty())

 					*itv=value;

 				else

 					*itv="";

 				*itv=value;

 				return;

 			}

 			itk++;

 			itv++;

 		}

 		// If no entry exists, append a new one

 		keylist.append (key);

 		valuelist.append (value);

 	}

 }

 /////////////////////////////////////////////////////////////////

 // Settings

 /////////////////////////////////////////////////////////////////

 Settings::Settings()

 {

 	clear();		 

 }

 Settings::~Settings()

 {

 }

 void Settings::clear()

 {

 	pathlist.clear();

 	keylist.clear();

 	valuelist.clear();

 }

 void Settings::clearLocal(const QString &s)

 {

 	QStringList::Iterator itp=pathlist.begin();

 	QStringList::Iterator itk=keylist.begin();

 	QStringList::Iterator itv=valuelist.begin();

 	while (itp !=pathlist.end() )

 	{

 		if ((*itk).startsWith (s))

 		{

 			itp=pathlist.remove (itp);

 			itk=keylist.remove (itk);

 			itv=valuelist.remove (itv);

 		}	else

 		{

 			itp++;

 			itk++;

 			itv++;

 		}

 	}

 }

 QString Settings::readLocalEntry ( const QString &fpath, const QString & key, const QString & def = QString::null ) 

 {

 	QStringList::Iterator itp=pathlist.begin();

 	QStringList::Iterator itk=keylist.begin();

 	QStringList::Iterator itv=valuelist.begin();

 	// First search for value in settings saved in map

 	while (itp !=pathlist.end() )

 	{

 		if (*itp == fpath && *itk == key)

 			return *itv;

 		itp++;

 		itk++;

 		itv++;

 	}

 	// Fall back to global vym settings

 	bool ok;

 	return readEntry (key,def, &ok);

 }	

 void Settings::setLocalEntry (const QString &fpath, const QString &key, const QString &value)

 {

 	QStringList::Iterator itp=pathlist.begin();

 	QStringList::Iterator itk=keylist.begin();

 	QStringList::Iterator itv=valuelist.begin();

 	if (!fpath.isEmpty() && !key.isEmpty() && !value.isEmpty() )

 	{

 		// Search for existing entry first

 		while (itp !=pathlist.end() )

 		{

 			if (*itp == fpath && *itk == key)

 			{

 				*itv=value;

 				return;

 			}

 			itp++;

 			itk++;

 			itv++;

 		}

 		// If no entry exists, append a new one

 		pathlist.append (fpath);

 		keylist.append (key);

 		valuelist.append (value);

 	}

 }

 QString Settings::getXMLData (const QString &fpath)

 {

 	QString s;

 	QStringList::Iterator itp=pathlist.begin();

 	QStringList::Iterator itk=keylist.begin();

 	QStringList::Iterator itv=valuelist.begin();

 	while (itp !=pathlist.end() )

 	{

 		if (*itp == fpath )

 			if (!(*itv).isEmpty())

 				s+=singleElement (

 					"setting",

 					attribut ("key",*itk) 

 					+attribut ("value",*itv)

 				)+"\n";

 		itp++;

 		itk++;

 		itv++;

 	}

 	return s;

 }