kolabbase.cpp
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	/*
	This file is part of the kolab resource - the implementation of the
	Kolab storage format. See www.kolab.org for documentation on this.

	Copyright (c) 2004 Bo Thorsen <bo@sonofthor.dk>

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Library General Public
	License as published by the Free Software Foundation; either
	version 2 of the License, or (at your option) any later version.

	This library 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
	Library General Public License for more details.

	You should have received a copy of the GNU Library General Public License
	along with this library; see the file COPYING.LIB. If not, write to
	the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
	Boston, MA 02110-1301, USA.

	In addition, as a special exception, the copyright holders give
	permission to link the code of this program with any edition of
	the Qt library by Trolltech AS, Norway (or with modified versions
	of Qt that use the same license as Qt), and distribute linked
	combinations including the two. You must obey the GNU General
	Public License in all respects for all of the code used other than
	Qt. If you modify this file, you may extend this exception to
	your version of the file, but you are not obligated to do so. If
	you do not wish to do so, delete this exception statement from
	your version.
	*/

	#include "kolabbase.h"

	#include <kabc/addressee.h>
	#include <kabc/contactgroup.h>
	#include <kcalcore/incidence.h>
	#include <kcalcore/journal.h>
	#include <ksystemtimezone.h>
	#include <kdebug.h>

	using namespace KolabV2;

	KolabBase::KolabBase( const QString& tz )
	: mCreationDate( QDateTime::currentDateTime() ),
	mLastModified( KDateTime::currentUtcDateTime() ),
	mSensitivity( Public ),
	mTimeZone( KSystemTimeZones::zone( tz ) ),
	mHasPilotSyncId( false ), mHasPilotSyncStatus( false )
	{
	}

	KolabBase::~KolabBase()
	{
	}

	void KolabBase::setFields( const KCalCore::Incidence::Ptr &incidence )
	{
	// So far unhandled KCalCore::IncidenceBase fields:
	// mPilotID, mSyncStatus, mFloats

	setUid( incidence->uid() );
	setBody( incidence->description() );
	setCategories( incidence->categoriesStr() );
	setCreationDate( localToUTC( incidence->created() ) );
	setLastModified( incidence->lastModified() );
	setSensitivity( static_cast<Sensitivity>( incidence->secrecy() ) );
	// TODO: Attachments
	}

	void KolabBase::saveTo( const KCalCore::Incidence::Ptr &incidence ) const
	{
	incidence->setUid( uid() );
	incidence->setDescription( body() );
	incidence->setCategories( categories() );
	incidence->setCreated( utcToLocal( creationDate() ) );
	incidence->setLastModified( lastModified() );
	switch( sensitivity() ) {
	case 1:
	incidence->setSecrecy( KCalCore::Incidence::SecrecyPrivate );
	break;
	case 2:
	incidence->setSecrecy( KCalCore::Incidence::SecrecyConfidential );
	break;
	default:
	incidence->setSecrecy( KCalCore::Incidence::SecrecyPublic );
	break;
	}

	// TODO: Attachments
	}

	void KolabBase::setFields( const KABC::Addressee* addressee )
	{
	// An addressee does not have a creation date, so somehow we should
	// make one, if this is a new entry

	setUid( addressee->uid() );
	setBody( addressee->note() );
	setCategories( addressee->categories().join( "," ) );

	// Set creation-time and last-modification-time
	const QString creationString = addressee->custom( "KOLAB", "CreationDate" );
	kDebug() <<"Creation time string:" << creationString;
	KDateTime creationDate;
	if ( creationString.isEmpty() ) {
	creationDate = KDateTime::currentDateTime(KDateTime::Spec( mTimeZone ) );
	kDebug() <<"Creation date set to current time";
	}
	else {
	creationDate = stringToDateTime( creationString );
	kDebug() <<"Creation date loaded";
	}
	KDateTime modified = KDateTime( addressee->revision(), mTimeZone );
	if ( !modified.isValid() )
	modified = KDateTime::currentUtcDateTime();
	setLastModified( modified );
	if ( modified < creationDate ) {
	// It's not possible that the modification date is earlier than creation
	creationDate = modified;
	kDebug() <<"Creation date set to modification date";
	}
	setCreationDate( creationDate );
	const QString newCreationDate = dateTimeToString( creationDate );
	if ( creationString != newCreationDate ) {
	// We modified the creation date, so store it for future reference
	const_cast<KABC::Addressee*>( addressee )
	->insertCustom( "KOLAB", "CreationDate", newCreationDate );
	kDebug() <<"Creation date modified. New one:" << newCreationDate;
	}

	switch( addressee->secrecy().type() ) {
	case KABC::Secrecy::Private:
	setSensitivity( Private );
	break;
	case KABC::Secrecy::Confidential:
	setSensitivity( Confidential );
	break;
	default:
	setSensitivity( Public );
	}

	// TODO: Attachments
	}

	void KolabBase::saveTo( KABC::Addressee* addressee ) const
	{
	addressee->setUid( uid() );
	addressee->setNote( body() );
	addressee->setCategories( categories().split( ',', QString::SkipEmptyParts ) );
	addressee->setRevision( lastModified().toZone( mTimeZone ).dateTime() );
	addressee->insertCustom( "KOLAB", "CreationDate",
	dateTimeToString( creationDate() ) );

	switch( sensitivity() ) {
	case Private:
	addressee->setSecrecy( KABC::Secrecy( KABC::Secrecy::Private ) );
	break;
	case Confidential:
	addressee->setSecrecy( KABC::Secrecy( KABC::Secrecy::Confidential ) );
	break;
	default:
	addressee->setSecrecy( KABC::Secrecy( KABC::Secrecy::Public ) );
	break;
	}
	// TODO: Attachments
	}

	void KolabBase::setFields( const KABC::ContactGroup* contactGroup )
	{
	// A contactgroup does not have a creation date, so somehow we should
	// make one, if this is a new entry

	setUid( contactGroup->id() );

	// Set creation-time and last-modification-time
	KDateTime creationDate = KDateTime::currentDateTime( KDateTime::Spec( mTimeZone ) );
	kDebug() <<"Creation date set to current time";

	KDateTime modified = KDateTime::currentUtcDateTime();
	setLastModified( modified );
	if ( modified < creationDate ) {
	// It's not possible that the modification date is earlier than creation
	creationDate = modified;
	kDebug() <<"Creation date set to modification date";
	}
	setCreationDate( creationDate );
	}

	void KolabBase::saveTo( KABC::ContactGroup* contactGroup ) const
	{
	contactGroup->setId( uid() );
	}

	void KolabBase::setUid( const QString& uid )
	{
	mUid = uid;
	}

	QString KolabBase::uid() const
	{
	return mUid;
	}

	void KolabBase::setBody( const QString& body )
	{
	mBody = body;
	}

	QString KolabBase::body() const
	{
	return mBody;
	}

	void KolabBase::setCategories( const QString& categories )
	{
	mCategories = categories;
	}

	QString KolabBase::categories() const
	{
	return mCategories;
	}

	void KolabBase::setCreationDate( const KDateTime& date )
	{
	mCreationDate = date;
	}

	KDateTime KolabBase::creationDate() const
	{
	return mCreationDate;
	}

	void KolabBase::setLastModified( const KDateTime& date )
	{
	mLastModified = date;
	}

	KDateTime KolabBase::lastModified() const
	{
	return mLastModified;
	}

	void KolabBase::setSensitivity( Sensitivity sensitivity )
	{
	mSensitivity = sensitivity;
	}

	KolabBase::Sensitivity KolabBase::sensitivity() const
	{
	return mSensitivity;
	}

	void KolabBase::setPilotSyncId( unsigned long id )
	{
	mHasPilotSyncId = true;
	mPilotSyncId = id;
	}

	bool KolabBase::hasPilotSyncId() const
	{
	return mHasPilotSyncId;
	}

	unsigned long KolabBase::pilotSyncId() const
	{
	return mPilotSyncId;
	}

	void KolabBase::setPilotSyncStatus( int status )
	{
	mHasPilotSyncStatus = true;
	mPilotSyncStatus = status;
	}

	bool KolabBase::hasPilotSyncStatus() const
	{
	return mHasPilotSyncStatus;
	}

	int KolabBase::pilotSyncStatus() const
	{
	return mPilotSyncStatus;
	}

	bool KolabBase::loadEmailAttribute( QDomElement& element, Email& email )
	{
	for ( QDomNode n = element.firstChild(); !n.isNull(); n = n.nextSibling() ) {
	if ( n.isComment() )
	continue;
	if ( n.isElement() ) {
	QDomElement e = n.toElement();
	const QString tagName = e.tagName();

	if ( tagName == "display-name" )
	email.displayName = e.text();
	else if ( tagName == "smtp-address" )
	email.smtpAddress = e.text();
	else
	// TODO: Unhandled tag - save for later storage
	kDebug() <<"Warning: Unhandled tag" << e.tagName();
	} else
	kDebug() <<"Node is not a comment or an element???";
	}

	return true;
	}

	void KolabBase::saveEmailAttribute( QDomElement& element, const Email& email,
	const QString& tagName ) const
	{
	QDomElement e = element.ownerDocument().createElement( tagName );
	element.appendChild( e );
	writeString( e, "display-name", email.displayName );
	writeString( e, "smtp-address", email.smtpAddress );
	}

	bool KolabBase::loadAttribute( QDomElement& element )
	{
	const QString tagName = element.tagName();
	switch ( tagName[0].toLatin1() ) {
	case 'u':
	if ( tagName == "uid" ) {
	setUid( element.text() );
	return true;
	}
	break;
	case 'b':
	if ( tagName == "body" ) {
	setBody( element.text() );
	return true;
	}
	break;
	case 'c':
	if ( tagName == "categories" ) {
	setCategories( element.text() );
	return true;
	}
	if ( tagName == "creation-date" ) {
	setCreationDate( stringToDateTime( element.text() ) );
	return true;
	}
	break;
	case 'l':
	if ( tagName == "last-modification-date" ) {
	setLastModified( stringToDateTime( element.text() ) );
	return true;
	}
	break;
	case 's':
	if ( tagName == "sensitivity" ) {
	setSensitivity( stringToSensitivity( element.text() ) );
	return true;
	}
	break;
	case 'p':
	if ( tagName == "product-id" )
	return true; // ignore this field
	if ( tagName == "pilot-sync-id" ) {
	setPilotSyncId( element.text().toULong() );
	return true;
	}
	if ( tagName == "pilot-sync-status" ) {
	setPilotSyncStatus( element.text().toInt() );
	return true;
	}
	break;
	default:
	break;
	}
	return false;
	}

	bool KolabBase::saveAttributes( QDomElement& element ) const
	{
	writeString( element, "product-id", productID() );
	writeString( element, "uid", uid() );
	writeString( element, "body", body() );
	writeString( element, "categories", categories() );
	writeString( element, "creation-date", dateTimeToString( creationDate().toUtc() ) );
	writeString( element, "last-modification-date", dateTimeToString( lastModified().toUtc() ) );
	writeString( element, "sensitivity", sensitivityToString( sensitivity() ) );
	if ( hasPilotSyncId() )
	writeString( element, "pilot-sync-id", QString::number( pilotSyncId() ) );
	if ( hasPilotSyncStatus() )
	writeString( element, "pilot-sync-status", QString::number( pilotSyncStatus() ) );
	return true;
	}

	bool KolabBase::load( const QString& xml )
	{
	const QDomDocument document = loadDocument( xml );
	if ( document.isNull() )
	return false;
	// XML file loaded into tree. Now parse it
	return loadXML( document );
	}

	QDomDocument KolabBase::loadDocument( const QString& xmlData )
	{
	QString errorMsg;
	int errorLine, errorColumn;
	QDomDocument document;
	bool ok = document.setContent( xmlData, &errorMsg, &errorLine, &errorColumn );

	if ( !ok ) {
	qWarning( "Error loading document: %s, line %d, column %d", qPrintable( errorMsg ), errorLine, errorColumn );
	return QDomDocument();
	}

	return document;
	}

	QDomDocument KolabBase::domTree()
	{
	QDomDocument document;

	QString p = "version=\"1.0\" encoding=\"UTF-8\"";
	document.appendChild(document.createProcessingInstruction( "xml", p ) );

	return document;
	}


	QString KolabBase::dateTimeToString( const KDateTime& time )
	{
	return time.toString( KDateTime::ISODate );
	}

	QString KolabBase::dateToString( const QDate& date )
	{
	return date.toString( Qt::ISODate );
	}

	KDateTime KolabBase::stringToDateTime( const QString& _date )
	{
	const QString date( _date );
	return KDateTime::fromString( date, KDateTime::ISODate );
	}

	QDate KolabBase::stringToDate( const QString& date )
	{
	return QDate::fromString( date, Qt::ISODate );
	}

	QString KolabBase::sensitivityToString( Sensitivity s )
	{
	switch( s ) {
	case Private: return "private";
	case Confidential: return "confidential";
	case Public: return "public";
	}

	return "What what what???";
	}

	KolabBase::Sensitivity KolabBase::stringToSensitivity( const QString& s )
	{
	if ( s == "private" )
	return Private;
	if ( s == "confidential" )
	return Confidential;
	return Public;
	}

	QString KolabBase::colorToString( const QColor& color )
	{
	// Color is in the format "#RRGGBB"
	return color.name();
	}

	QColor KolabBase::stringToColor( const QString& s )
	{
	return QColor( s );
	}

	void KolabBase::writeString( QDomElement& element, const QString& tag,
	const QString& tagString )
	{
	if ( !tagString.isEmpty() ) {
	QDomElement e = element.ownerDocument().createElement( tag );
	QDomText t = element.ownerDocument().createTextNode( tagString );
	e.appendChild( t );
	element.appendChild( e );
	}
	}

	KDateTime KolabBase::localToUTC( const KDateTime& time ) const
	{
	return time.toUtc();
	}

	KDateTime KolabBase::utcToLocal( const KDateTime& time ) const
	{
	KDateTime dt = time;
	dt.setTimeSpec( KDateTime::UTC );
	return dt;
	}

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