/*
    This file is part of libkabc.
    Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>

    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.
*/
#include <qfile.h>
#include <qregexp.h>

#include <kdebug.h>
#include <kmdcodec.h>
#include <kstandarddirs.h>
#include <ktempfile.h>

#include <VCard.h>

#include "addressbook.h"
#include "vcardformatimpl.h"

using namespace KABC;
using namespace VCARD;

bool VCardFormatImpl::load( Addressee &addressee, QFile *file )
{
  kdDebug(5700) << "VCardFormat::load()" << endl;

  QByteArray fdata = file->readAll();
  QCString data(fdata.data(), fdata.size()+1);

  VCardEntity e( data );

  VCardListIterator it( e.cardList() );

  if ( it.current() ) {
    VCARD::VCard v(*it.current());
    loadAddressee( addressee, v );
    return true;
  }

  return false;
}

bool VCardFormatImpl::loadAll( AddressBook *addressBook, Resource *resource, QFile *file )
{
  kdDebug(5700) << "VCardFormat::loadAll()" << endl;

  QByteArray fdata = file->readAll();
  QCString data(fdata.data(), fdata.size()+1);

  VCardEntity e( data );

  VCardListIterator it( e.cardList() );

  for (; it.current(); ++it) {
    VCARD::VCard v(*it.current());
    Addressee addressee;
    loadAddressee( addressee, v );
    addressee.setResource( resource );
    addressBook->insertAddressee( addressee );
  }

  return true;
}

void VCardFormatImpl::save( const Addressee &addressee, QFile *file )
{
  VCardEntity vcards;
  VCardList vcardlist;
  vcardlist.setAutoDelete( true );

  VCARD::VCard *v = new VCARD::VCard;

  saveAddressee( addressee, v, false );

  vcardlist.append( v );
  vcards.setCardList( vcardlist );

  QCString vcardData = vcards.asString();
  file->writeBlock( (const char*)vcardData, vcardData.length() );
}

void VCardFormatImpl::saveAll( AddressBook *ab, Resource *resource, QFile *file )
{
  VCardEntity vcards;
  VCardList vcardlist;
  vcardlist.setAutoDelete( true );

  AddressBook::Iterator it;
  for ( it = ab->begin(); it != ab->end(); ++it ) {
    if ( (*it).resource() == resource ) {
      VCARD::VCard *v = new VCARD::VCard;
      saveAddressee( (*it), v, false );
      (*it).setChanged( false );
      vcardlist.append( v );
    }
  }

  vcards.setCardList( vcardlist );

  QCString vcardData = vcards.asString();
  file->writeBlock( (const char*)vcardData, vcardData.length() );
}

bool VCardFormatImpl::loadAddressee( Addressee& addressee, VCARD::VCard &v )
{
  QPtrList<ContentLine> contentLines = v.contentLineList();
  ContentLine *cl;

  for( cl = contentLines.first(); cl; cl = contentLines.next() ) {
    QCString n = cl->name();
    if ( n.left( 2 ) == "X-" ) {
      n = n.mid( 2 );
      int posDash = n.find( "-" );
      addressee.insertCustom( QString::fromUtf8( n.left( posDash ) ),
                        QString::fromUtf8( n.mid( posDash + 1 ) ),
                        QString::fromUtf8( cl->value()->asString() ) );
        continue;
    }

    EntityType type = cl->entityType();
    switch( type ) {

      case EntityUID:
        addressee.setUid( readTextValue( cl ) );
        break;

      case EntityEmail:
        addressee.insertEmail( readTextValue( cl ) );
        break;

      case EntityName:
        addressee.setName( readTextValue( cl ) );
        break;

      case EntityFullName:
        addressee.setFormattedName( readTextValue( cl ) );
        break;

      case EntityURL:
        addressee.setUrl( KURL( readTextValue( cl ) ) );
        break;

      case EntityNickname:
        addressee.setNickName( readTextValue( cl ) );
        break;

      case EntityLabel:
        // not yet supported by kabc
        break;

      case EntityMailer:
        addressee.setMailer( readTextValue( cl ) );
        break;

      case EntityTitle:
        addressee.setTitle( readTextValue( cl ) );
        break;

      case EntityRole:
        addressee.setRole( readTextValue( cl ) );
        break;

      case EntityOrganisation:
        addressee.setOrganization( readTextValue( cl ) );
        break;

      case EntityNote:
        addressee.setNote( readTextValue( cl ) );
        break;

      case EntityProductID:
        addressee.setProductId( readTextValue( cl ) );
        break;

      case EntitySortString:
        addressee.setSortString( readTextValue( cl ) );
        break;

      case EntityN:
        readNValue( cl, addressee );
        break;

      case EntityAddress:
        addressee.insertAddress( readAddressValue( cl ) );
        break;

      case EntityTelephone:
        addressee.insertPhoneNumber( readTelephoneValue( cl ) );
        break;

      case EntityCategories:
        addressee.setCategories( QStringList::split( ",", readTextValue( cl ) ) );
        break;

      case EntityBirthday:
        addressee.setBirthday( readDateValue( cl ) );
        break;

      case EntityRevision:
        addressee.setRevision( readDateTimeValue( cl ) );
        break;

      case EntityGeo:
        addressee.setGeo( readGeoValue( cl ) );
        break;

      case EntityTimeZone:
        addressee.setTimeZone( readUTCValue( cl ) );
        break;

      case EntityVersion:
        break;

      case EntityClass:
        addressee.setSecrecy( readClassValue( cl ) );
        break;

      case EntityKey:
        addressee.insertKey( readKeyValue( cl ) );
        break;

      case EntityPhoto:
        addressee.setPhoto( readPictureValue( cl, EntityPhoto, addressee ) );
        break;

      case EntityLogo:
        addressee.setLogo( readPictureValue( cl, EntityLogo, addressee ) );
        break;

      case EntityAgent:
        addressee.setAgent( readAgentValue( cl ) );
        break;

      case EntitySound:
        addressee.setSound( readSoundValue( cl, addressee ) );
        break;

      default:
        kdDebug(5700) << "VCardFormat::load(): Unsupported entity: "
                    << int( type ) << ": " << cl->asString() << endl;
        break;
    }
  }

  for( cl = contentLines.first(); cl; cl = contentLines.next() ) {
    EntityType type = cl->entityType();
    if ( type == EntityLabel ) {
      int type = readAddressParam( cl );
      Address address = addressee.address( type );
      if ( address.isEmpty() )
        address.setType( type );

      address.setLabel( QString::fromUtf8( cl->value()->asString() ) );
      addressee.insertAddress( address );
    }
  }

  return true;
}

void VCardFormatImpl::saveAddressee( const Addressee &addressee, VCARD::VCard *v, bool intern )
{
  ContentLine cl;
  QString value;

  addTextValue( v, EntityName, addressee.name() );
  addTextValue( v, EntityUID, addressee.uid() );
  addTextValue( v, EntityFullName, addressee.formattedName() );

  QStringList emails = addressee.emails();
  QStringList::ConstIterator it4;
  for( it4 = emails.begin(); it4 != emails.end(); ++it4 ) {
    addTextValue( v, EntityEmail, *it4 );
  }

  QStringList customs = addressee.customs();
  QStringList::ConstIterator it5;
  for( it5 = customs.begin(); it5 != customs.end(); ++it5 ) {
    addCustomValue( v, *it5 );
  }

  addTextValue( v, EntityURL, addressee.url().url() );

  addNValue( v, addressee );

  addTextValue( v, EntityNickname, addressee.nickName() );
  addTextValue( v, EntityMailer, addressee.mailer() );
  addTextValue( v, EntityTitle, addressee.title() );
  addTextValue( v, EntityRole, addressee.role() );
  addTextValue( v, EntityOrganisation, addressee.organization() );
  addTextValue( v, EntityNote, addressee.note() );
  addTextValue( v, EntityProductID, addressee.productId() );
  addTextValue( v, EntitySortString, addressee.sortString() );

  Address::List addresses = addressee.addresses();
  Address::List::ConstIterator it3;
  for( it3 = addresses.begin(); it3 != addresses.end(); ++it3 ) {
    addAddressValue( v, *it3 );
    addLabelValue( v, *it3 );
  }

  PhoneNumber::List phoneNumbers = addressee.phoneNumbers();
  PhoneNumber::List::ConstIterator it2;
  for( it2 = phoneNumbers.begin(); it2 != phoneNumbers.end(); ++it2 ) {
    addTelephoneValue( v, *it2 );
  }

  Key::List keys = addressee.keys();
  Key::List::ConstIterator it6;
  for( it6 = keys.begin(); it6 != keys.end(); ++it6 ) {
    addKeyValue( v, *it6 );
  }

  addTextValue( v, EntityCategories, addressee.categories().join(",") );

  addDateValue( v, EntityBirthday, addressee.birthday().date() );
  addDateTimeValue( v, EntityRevision, addressee.revision() );
  addGeoValue( v, addressee.geo() );
  addUTCValue( v, addressee.timeZone() );

  addClassValue( v, addressee.secrecy() );

  addPictureValue( v, EntityPhoto, addressee.photo(), addressee, intern );
  addPictureValue( v, EntityLogo, addressee.logo(), addressee, intern );

  addAgentValue( v, addressee.agent() );

  addSoundValue( v, addressee.sound(), addressee, intern );
}

void VCardFormatImpl::addCustomValue( VCARD::VCard *v, const QString &txt )
{
  if ( txt.isEmpty() ) return;

  ContentLine cl;
  cl.setName( "X-" + txt.left( txt.find( ":" ) ).utf8() );
  QString value = txt.mid( txt.find( ":" ) + 1 );
  if ( value.isEmpty() )
    return;
  cl.setValue( new TextValue( value.utf8() ) );
  v->add(cl);
}

void VCardFormatImpl::addTextValue( VCARD::VCard *v, EntityType type, const QString &txt )
{
  if ( txt.isEmpty() ) return;

  ContentLine cl;
  cl.setName( EntityTypeToParamName( type ) );
  cl.setValue( new TextValue( txt.utf8() ) );
  v->add(cl);
}

void VCardFormatImpl::addDateValue( VCARD::VCard *vcard, EntityType type,
                                    const QDate &date )
{
  if ( !date.isValid() ) return;

  ContentLine cl;
  cl.setName( EntityTypeToParamName( type ) );

  DateValue *v = new DateValue( date );
  cl.setValue( v );
  vcard->add(cl);
}

void VCardFormatImpl::addDateTimeValue( VCARD::VCard *vcard, EntityType type,
                                    const QDateTime &dateTime )
{
  if ( !dateTime.isValid() ) return;

  ContentLine cl;
  cl.setName( EntityTypeToParamName( type ) );

  DateValue *v = new DateValue( dateTime );
  cl.setValue( v );
  vcard->add(cl);
}

void VCardFormatImpl::addAddressValue( VCARD::VCard *vcard, const Address &a )
{
  if ( a.isEmpty() )
    return;

  ContentLine cl;
  cl.setName( EntityTypeToParamName( EntityAddress ) );

  AdrValue *v = new AdrValue;
  v->setPOBox( a.postOfficeBox().utf8() );
  v->setExtAddress( a.extended().utf8() );
  v->setStreet( a.street().utf8() );
  v->setLocality( a.locality().utf8() );
  v->setRegion( a.region().utf8() );
  v->setPostCode( a.postalCode().utf8() );
  v->setCountryName( a.country().utf8() );
  cl.setValue( v );

  addAddressParam( &cl, a.type() );

  vcard->add( cl );
}

void VCardFormatImpl::addLabelValue( VCARD::VCard *vcard, const Address &a )
{
  if ( a.label().isEmpty() ) return;

  ContentLine cl;
  cl.setName( EntityTypeToParamName( EntityLabel ) );
  cl.setValue( new TextValue( a.label().utf8() ) );

  addAddressParam( &cl, a.type() );

  vcard->add( cl );
}

void VCardFormatImpl::addAddressParam( ContentLine *cl, int type )
{
  ParamList params;
  if ( type & Address::Dom ) params.append( new Param( "TYPE", "dom" ) );
  if ( type & Address::Intl ) params.append( new Param( "TYPE", "intl" ) );
  if ( type & Address::Parcel ) params.append( new Param( "TYPE", "parcel" ) );
  if ( type & Address::Postal ) params.append( new Param( "TYPE", "postal" ) );
  if ( type & Address::Work ) params.append( new Param( "TYPE", "work" ) );
  if ( type & Address::Home ) params.append( new Param( "TYPE", "home" ) );
  if ( type & Address::Pref ) params.append( new Param( "TYPE", "pref" ) );
  cl->setParamList( params );
}

void VCardFormatImpl::addGeoValue( VCARD::VCard *vcard, const Geo &geo )
{
  if ( !geo.isValid() ) return;

  ContentLine cl;
  cl.setName( EntityTypeToParamName( EntityGeo ) );

  GeoValue *v = new GeoValue;
  v->setLatitude( geo.latitude() );
  v->setLongitude( geo.longitude() );

  cl.setValue( v );
  vcard->add(cl);
}

void VCardFormatImpl::addUTCValue( VCARD::VCard *vcard, const TimeZone &tz )
{
  if ( !tz.isValid() ) return;

  ContentLine cl;
  cl.setName( EntityTypeToParamName( EntityTimeZone ) );

  UTCValue *v = new UTCValue;

  v->setPositive( tz.offset() >= 0 );
  v->setHour( (tz.offset() / 60) * ( tz.offset() >= 0 ? 1 : -1 ) );
  v->setMinute( (tz.offset() % 60) * ( tz.offset() >= 0 ? 1 : -1 ) );

  cl.setValue( v );
  vcard->add(cl);
}

void VCardFormatImpl::addClassValue( VCARD::VCard *vcard, const Secrecy &secrecy )
{
  ContentLine cl;
  cl.setName( EntityTypeToParamName( EntityClass ) );

  ClassValue *v = new ClassValue;
  switch ( secrecy.type() ) {
    case Secrecy::Public:
      v->setType( (int)ClassValue::Public );
      break;
    case Secrecy::Private:
      v->setType( (int)ClassValue::Private );
      break;
    case Secrecy::Confidential:
      v->setType( (int)ClassValue::Confidential );
      break;
  }

  cl.setValue( v );
  vcard->add(cl);
}


Address VCardFormatImpl::readAddressValue( ContentLine *cl )
{
  Address a;
  AdrValue *v = (AdrValue *)cl->value();
  a.setPostOfficeBox( QString::fromUtf8( v->poBox() ) );
  a.setExtended( QString::fromUtf8( v->extAddress() ) );
  a.setStreet( QString::fromUtf8( v->street() ) );
  a.setLocality( QString::fromUtf8( v->locality() ) );
  a.setRegion( QString::fromUtf8( v->region() ) );
  a.setPostalCode( QString::fromUtf8( v->postCode() ) );
  a.setCountry( QString::fromUtf8( v->countryName() ) );

  a.setType( readAddressParam( cl ) );

  return a;
}

int VCardFormatImpl::readAddressParam( ContentLine *cl )
{
  int type = 0;
  ParamList params = cl->paramList();
  ParamListIterator it( params );
  for( ; it.current(); ++it ) {
    if ( (*it)->name() == "TYPE" ) {
      if ( (*it)->value() == "dom" ) type |= Address::Dom;
      else if ( (*it)->value() == "intl" ) type |= Address::Intl;
      else if ( (*it)->value() == "parcel" ) type |= Address::Parcel;
      else if ( (*it)->value() == "postal" ) type |= Address::Postal;
      else if ( (*it)->value() == "work" ) type |= Address::Work;
      else if ( (*it)->value() == "home" ) type |= Address::Home;
      else if ( (*it)->value() == "pref" ) type |= Address::Pref;
    }
  }
  return type;
}

void VCardFormatImpl::addNValue( VCARD::VCard *vcard, const Addressee &a )
{
  ContentLine cl;
  cl.setName(EntityTypeToParamName( EntityN ) );
  NValue *v = new NValue;
  v->setFamily( a.familyName().utf8() );
  v->setGiven( a.givenName().utf8() );
  v->setMiddle( a.additionalName().utf8() );
  v->setPrefix( a.prefix().utf8() );
  v->setSuffix( a.suffix().utf8() );

  cl.setValue( v );
  vcard->add(cl);
}

void VCardFormatImpl::readNValue( ContentLine *cl, Addressee &a )
{
  NValue *v = (NValue *)cl->value();
  a.setFamilyName( QString::fromUtf8( v->family() ) );
  a.setGivenName( QString::fromUtf8( v->given() ) );
  a.setAdditionalName( QString::fromUtf8( v->middle() ) );
  a.setPrefix( QString::fromUtf8( v->prefix() ) );
  a.setSuffix( QString::fromUtf8( v->suffix() ) );
}

void VCardFormatImpl::addTelephoneValue( VCARD::VCard *v, const PhoneNumber &p )
{
  if ( p.number().isEmpty() )
    return;

  ContentLine cl;
  cl.setName(EntityTypeToParamName(EntityTelephone));
  cl.setValue(new TelValue( p.number().utf8() ));

  ParamList params;
  if( p.type() & PhoneNumber::Home ) params.append( new Param( "TYPE", "home" ) );
  if( p.type() & PhoneNumber::Work ) params.append( new Param( "TYPE", "work" ) );
  if( p.type() & PhoneNumber::Msg ) params.append( new Param( "TYPE", "msg" ) );
  if( p.type() & PhoneNumber::Pref ) params.append( new Param( "TYPE", "pref" ) );
  if( p.type() & PhoneNumber::Voice ) params.append( new Param( "TYPE", "voice" ) );
  if( p.type() & PhoneNumber::Fax ) params.append( new Param( "TYPE", "fax" ) );
  if( p.type() & PhoneNumber::Cell ) params.append( new Param( "TYPE", "cell" ) );
  if( p.type() & PhoneNumber::Video ) params.append( new Param( "TYPE", "video" ) );
  if( p.type() & PhoneNumber::Bbs ) params.append( new Param( "TYPE", "bbs" ) );
  if( p.type() & PhoneNumber::Modem ) params.append( new Param( "TYPE", "modem" ) );
  if( p.type() & PhoneNumber::Car ) params.append( new Param( "TYPE", "car" ) );
  if( p.type() & PhoneNumber::Isdn ) params.append( new Param( "TYPE", "isdn" ) );
  if( p.type() & PhoneNumber::Pcs ) params.append( new Param( "TYPE", "pcs" ) );
  if( p.type() & PhoneNumber::Pager ) params.append( new Param( "TYPE", "pager" ) );
  cl.setParamList( params );

  v->add(cl);
}

PhoneNumber VCardFormatImpl::readTelephoneValue( ContentLine *cl )
{
  PhoneNumber p;
  TelValue *value = (TelValue *)cl->value();
  p.setNumber( QString::fromUtf8( value->asString() ) );

  int type = 0;
  ParamList params = cl->paramList();
  ParamListIterator it( params );
  for( ; it.current(); ++it ) {
    if ( (*it)->name() == "TYPE" ) {
      if ( (*it)->value() == "home" ) type |= PhoneNumber::Home;
      else if ( (*it)->value() == "work" ) type |= PhoneNumber::Work;
      else if ( (*it)->value() == "msg" ) type |= PhoneNumber::Msg;
      else if ( (*it)->value() == "pref" ) type |= PhoneNumber::Pref;
      else if ( (*it)->value() == "voice" ) type |= PhoneNumber::Voice;
      else if ( (*it)->value() == "fax" ) type |= PhoneNumber::Fax;
      else if ( (*it)->value() == "cell" ) type |= PhoneNumber::Cell;
      else if ( (*it)->value() == "video" ) type |= PhoneNumber::Video;
      else if ( (*it)->value() == "bbs" ) type |= PhoneNumber::Bbs;
      else if ( (*it)->value() == "modem" ) type |= PhoneNumber::Modem;
      else if ( (*it)->value() == "car" ) type |= PhoneNumber::Car;
      else if ( (*it)->value() == "isdn" ) type |= PhoneNumber::Isdn;
      else if ( (*it)->value() == "pcs" ) type |= PhoneNumber::Pcs;
      else if ( (*it)->value() == "pager" ) type |= PhoneNumber::Pager;
    }
  }
  p.setType( type );

  return p;
}

QString VCardFormatImpl::readTextValue( ContentLine *cl )
{
  VCARD::Value *value = cl->value();
  if ( value ) {
    return QString::fromUtf8( value->asString() );
  } else {
    kdDebug(5700) << "No value: " << cl->asString() << endl;
    return QString::null;
  }
}

QDate VCardFormatImpl::readDateValue( ContentLine *cl )
{
  DateValue *dateValue = (DateValue *)cl->value();
  if ( dateValue )
    return dateValue->qdate();
  else
    return QDate();
}

QDateTime VCardFormatImpl::readDateTimeValue( ContentLine *cl )
{
  DateValue *dateValue = (DateValue *)cl->value();
  if ( dateValue )
    return dateValue->qdt();
  else
    return QDateTime();
}

Geo VCardFormatImpl::readGeoValue( ContentLine *cl )
{
  GeoValue *geoValue = (GeoValue *)cl->value();
  if ( geoValue ) {
    Geo geo( geoValue->latitude(), geoValue->longitude() );
    return geo;
  } else
    return Geo();
}

TimeZone VCardFormatImpl::readUTCValue( ContentLine *cl )
{
  UTCValue *utcValue = (UTCValue *)cl->value();
  if ( utcValue ) {
    TimeZone tz;
    tz.setOffset(((utcValue->hour()*60)+utcValue->minute())*(utcValue->positive() ? 1 : -1));
    return tz;
  } else
    return TimeZone();
}

Secrecy VCardFormatImpl::readClassValue( ContentLine *cl )
{
  ClassValue *classValue = (ClassValue *)cl->value();
  if ( classValue ) {
    Secrecy secrecy;
    switch ( classValue->type() ) {
      case ClassValue::Public:
        secrecy.setType( Secrecy::Public );
        break;
      case ClassValue::Private:
        secrecy.setType( Secrecy::Private );
        break;
      case ClassValue::Confidential:
        secrecy.setType( Secrecy::Confidential );
        break;
    }

    return secrecy;
  } else
    return Secrecy();
}

void VCardFormatImpl::addKeyValue( VCARD::VCard *vcard, const Key &key )
{
  ContentLine cl;
  cl.setName( EntityTypeToParamName( EntityKey ) );

  ParamList params;
  if ( key.isBinary() ) {
    cl.setValue( new TextValue( KCodecs::base64Encode( key.binaryData() ) ) );
    params.append( new Param( "ENCODING", "b" ) );
  } else {
    cl.setValue( new TextValue( key.textData().utf8() ) );
  }

  switch ( key.type() ) {
    case Key::X509:
      params.append( new Param( "TYPE", "X509" ) );
      break;
    case Key::PGP:
      params.append( new Param( "TYPE", "PGP" ) );
      break;
    case Key::Custom:
      params.append( new Param( "TYPE", key.customTypeString().utf8() ) );
      break;
  }

  cl.setParamList( params );
  vcard->add( cl );
}

Key VCardFormatImpl::readKeyValue( VCARD::ContentLine *cl )
{
  Key key;
  bool isBinary = false;
  TextValue *v = (TextValue *)cl->value();

  ParamList params = cl->paramList();
  ParamListIterator it( params );
  for( ; it.current(); ++it ) {
    if ( (*it)->name() == "ENCODING" && (*it)->value() == "b" )
      isBinary = true;
    if ( (*it)->name() == "TYPE" ) {
      if ( (*it)->value().isEmpty() )
        continue;
      if ( (*it)->value() == "X509" )
        key.setType( Key::X509 );
      else if ( (*it)->value() == "PGP" )
        key.setType( Key::PGP );
      else {
        key.setType( Key::Custom );
        key.setCustomTypeString( QString::fromUtf8( (*it)->value() ) );
      }
    }
  }


  if ( isBinary ) {
    QByteArray data;
    KCodecs::base64Decode( v->asString().stripWhiteSpace(), data );
    key.setBinaryData( data );
  } else {
    key.setTextData( QString::fromUtf8( v->asString() ) );
  }

  return key;
}


void VCardFormatImpl::addAgentValue( VCARD::VCard *vcard, const Agent &agent )
{
  if ( agent.isIntern() && !agent.addressee() )
    return;

  if ( !agent.isIntern() && agent.url().isEmpty() )
    return;

  ContentLine cl;
  cl.setName( EntityTypeToParamName( EntityAgent ) );

  ParamList params;
  if ( agent.isIntern() ) {
    QString vstr;
    Addressee *addr = agent.addressee();
    if ( addr ) {
      writeToString( (*addr), vstr );
      vstr.replace( ":", "\\:" );
      vstr.replace( ",", "\\," );
      vstr.replace( ";", "\\;" );
      vstr.replace( "\r\n", "\\n" );
      cl.setValue( new TextValue( vstr.utf8() ) );
    } else
      return;
  } else {
    cl.setValue( new TextValue( agent.url().utf8() ) );
    params.append( new Param( "VALUE", "uri" ) );
  }

  cl.setParamList( params );
  vcard->add( cl );
}

Agent VCardFormatImpl::readAgentValue( VCARD::ContentLine *cl )
{
  Agent agent;
  bool isIntern = true;
  TextValue *v = (TextValue *)cl->value();

  ParamList params = cl->paramList();
  ParamListIterator it( params );
  for( ; it.current(); ++it ) {
    if ( (*it)->name() == "VALUE" && (*it)->value() == "uri" )
      isIntern = false;
  }

  if ( isIntern ) {
    QString vstr = QString::fromUtf8( v->asString() );
    vstr.replace( "\\n", "\r\n" );
    vstr.replace( "\\:", ":" );
    vstr.replace( "\\,", "," );
    vstr.replace( "\\;", ";" );
    Addressee *addr = new Addressee;
    readFromString( vstr, *addr );
    agent.setAddressee( addr );
  } else {
    agent.setUrl( QString::fromUtf8( v->asString() ) );
  }

  return agent;
}

void VCardFormatImpl::addPictureValue( VCARD::VCard *vcard, VCARD::EntityType type, const Picture &pic, const Addressee &addr, bool intern )
{
  ContentLine cl;
  cl.setName( EntityTypeToParamName( type ) );

  if ( pic.isIntern() && pic.data().isNull() )
    return;

  if ( !pic.isIntern() && pic.url().isEmpty() )
    return;

  ParamList params;
  if ( pic.isIntern() ) {
    QImage img = pic.data();
    if ( intern ) { // only for vCard export we really write the data inline
      QByteArray data;
      QDataStream s( data, IO_WriteOnly );
      s.setVersion( 4 ); // to produce valid png files
      s << img;
      cl.setValue( new TextValue( KCodecs::base64Encode( data ) ) );
    } else { // save picture in cache
      QString dir;
      if ( type == EntityPhoto )
        dir = "photos";
      if ( type == EntityLogo )
        dir = "logos";

      img.save( locateLocal( "data", "kabc/" + dir + "/" + addr.uid() ), pic.type().utf8() );
      cl.setValue( new TextValue( "<dummy>" ) );
    }
    params.append( new Param( "ENCODING", "b" ) );
    if ( !pic.type().isEmpty() )
      params.append( new Param( "TYPE", pic.type().utf8() ) );
  } else {
    cl.setValue( new TextValue( pic.url().utf8() ) );
    params.append( new Param( "VALUE", "uri" ) );
  }

  cl.setParamList( params );
  vcard->add( cl );
}

Picture VCardFormatImpl::readPictureValue( VCARD::ContentLine *cl, VCARD::EntityType type, const Addressee &addr )
{
  Picture pic;
  bool isInline = false;
  QString picType;
  TextValue *v = (TextValue *)cl->value();

  ParamList params = cl->paramList();
  ParamListIterator it( params );
  for( ; it.current(); ++it ) {
    if ( (*it)->name() == "ENCODING" && (*it)->value() == "b" )
      isInline = true;
    if ( (*it)->name() == "TYPE" && !(*it)->value().isEmpty() )
      picType = QString::fromUtf8( (*it)->value() );
  }

  if ( isInline ) {
    QImage img;
    if ( v->asString() == "<dummy>" ) { // no picture inline stored => picture is in cache
      QString dir;
      if ( type == EntityPhoto )
        dir = "photos";
      if ( type == EntityLogo )
        dir = "logos";

      img.load( locateLocal( "data", "kabc/" + dir + "/" + addr.uid() ) );
    } else {
      QByteArray data;
      KCodecs::base64Decode( v->asString(), data );
      img.loadFromData( data );
    }
    pic.setData( img );
    pic.setType( picType );
  } else {
    pic.setUrl( QString::fromUtf8( v->asString() ) );
  }

  return pic;
}

void VCardFormatImpl::addSoundValue( VCARD::VCard *vcard, const Sound &sound, const Addressee &addr, bool intern )
{
  ContentLine cl;
  cl.setName( EntityTypeToParamName( EntitySound ) );

  if ( sound.isIntern() && sound.data().isNull() )
    return;

  if ( !sound.isIntern() && sound.url().isEmpty() )
    return;

  ParamList params;
  if ( sound.isIntern() ) {
    QByteArray data = sound.data();
    if ( intern ) { // only for vCard export we really write the data inline
        cl.setValue( new TextValue( KCodecs::base64Encode( data ) ) );
    } else { // save sound in cache
      QFile file( locateLocal( "data", "kabc/sounds/" + addr.uid() ) );
      if ( file.open( IO_WriteOnly ) ) {
        file.writeBlock( data );
      }
      cl.setValue( new TextValue( "<dummy>" ) );
    }
    params.append( new Param( "ENCODING", "b" ) );
  } else {
    cl.setValue( new TextValue( sound.url().utf8() ) );
    params.append( new Param( "VALUE", "uri" ) );
  }

  cl.setParamList( params );
  vcard->add( cl );
}

Sound VCardFormatImpl::readSoundValue( VCARD::ContentLine *cl, const Addressee &addr )
{
  Sound sound;
  bool isInline = false;
  TextValue *v = (TextValue *)cl->value();

  ParamList params = cl->paramList();
  ParamListIterator it( params );
  for( ; it.current(); ++it ) {
    if ( (*it)->name() == "ENCODING" && (*it)->value() == "b" )
      isInline = true;
  }

  if ( isInline ) {
    QByteArray data;
    if ( v->asString() == "<dummy>" ) { // no sound inline stored => sound is in cache
      QFile file( locateLocal( "data", "kabc/sounds/" + addr.uid() ) );
      if ( file.open( IO_ReadOnly ) ) {
        data = file.readAll();
        file.close();
      }
    } else {
      KCodecs::base64Decode( v->asString(), data );
    }
    sound.setData( data );
  } else {
    sound.setUrl( QString::fromUtf8( v->asString() ) );
  }

  return sound;
}

bool VCardFormatImpl::readFromString( const QString &vcard, Addressee &addressee )
{
  VCardEntity e( vcard.utf8() );
  VCardListIterator it( e.cardList() );

  if ( it.current() ) {
    VCARD::VCard v(*it.current());
    loadAddressee( addressee, v );
    return true;
  }

  return false;
}

bool VCardFormatImpl::writeToString( const Addressee &addressee, QString &vcard )
{
  VCardEntity vcards;
  VCardList vcardlist;
  vcardlist.setAutoDelete( true );

  VCARD::VCard *v = new VCARD::VCard;

  saveAddressee( addressee, v, true );

  vcardlist.append( v );
  vcards.setCardList( vcardlist );
  vcard = QString::fromUtf8( vcards.asString() );

  return true;
}
