/*
  This file is part of KDE Kontact.

  Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org>

  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 2 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, write to the Free Software Foundation, Inc.,
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

  As a special exception, permission is given to link this program
  with any edition of Qt, and distribute the resulting executable,
  without including the source code for Qt in the source distribution.
*/

#include "kcmkontact.h"
#include "prefs.h"
using namespace Kontact;

#include <KontactInterface/Plugin>

#include <KAboutData>
#include <KComboBox>
#include <KServiceTypeTrader>

#include <Q3ListViewItem>
#include <QCheckBox>
#include <QHBoxLayout>
#include <QVBoxLayout>

extern "C"
{
  KDE_EXPORT KCModule *create_kontactconfig( QWidget *parent, const char * )
  {
    KComponentData inst( "kcmkontact" );
    return new KcmKontact( inst, parent );
  }
}

class PluginItem : public Q3ListViewItem
{
  public:
    PluginItem( Q3ListView *parent, const KService::Ptr &ptr )
      : Q3ListViewItem( parent, ptr->name(), ptr->comment(), ptr->library() ),
        mPtr( ptr )
    {
    }

    KService::Ptr servicePtr() const
    {
      return mPtr;
    }

  private:
    KService::Ptr mPtr;
};

KcmKontact::KcmKontact( const KComponentData &inst, QWidget *parent )
  : KPrefsModule( Prefs::self(), inst, parent )
{
  QBoxLayout *topLayout = new QVBoxLayout( this );
  QBoxLayout *pluginStartupLayout = new QHBoxLayout();
  topLayout->addItem( pluginStartupLayout );
  topLayout->addStretch();

  KPrefsWidBool *forceStartupPlugin =
    addWidBool( Prefs::self()->forceStartupPluginItem(), this );
  pluginStartupLayout->addWidget( forceStartupPlugin->checkBox() );

  PluginSelection *selection =
    new PluginSelection( Prefs::self()->forcedStartupPluginItem(), this );
  addWid( selection );

  pluginStartupLayout->addWidget( selection->comboBox() );
  selection->comboBox()->setEnabled( false );

  pluginStartupLayout->addStretch( 1 );

  connect( forceStartupPlugin->checkBox(), SIGNAL(toggled(bool)),
           selection->comboBox(), SLOT(setEnabled(bool)) );
  load();
}

const KAboutData *KcmKontact::aboutData() const
{
  KAboutData *about = new KAboutData(
    "kontactconfig", 0,
    ki18nc( "@title", "KDE Kontact" ),
    0,
    KLocalizedString(),
    KAboutData::License_GPL,
    ki18nc( "@info:credit", "(c), 2003 Cornelius Schumacher" ) );

  about->addAuthor( ki18nc( "@info:credit", "Cornelius Schumacher" ),
                    ki18nc( "@info:credit", "Developer" ),
                            "schumacher@kde.org" );
  about->addAuthor( ki18nc( "@info:credit", "Tobias Koenig" ),
                    ki18nc( "@info:credit", "Developer" ),
                    "tokoe@kde.org" );

  return about;
}

PluginSelection::PluginSelection( KConfigSkeleton::ItemString *item, QWidget *parent )
{
  mItem = item;
  mPluginCombo = new KComboBox( parent );
  mPluginCombo->setToolTip(
    i18nc( "@info:tooltip", "Select the initial plugin to use on each start" ) );
  mPluginCombo->setWhatsThis(
    i18nc( "@info:whatsthis",
           "Select the plugin from this drop down list to be used as the "
           "initial plugin each time Kontact is started. Otherwise, Kontact "
           "will restore the last active plugin from the previous usage." ) );
  connect( mPluginCombo, SIGNAL(currentIndexChanged(int)), SIGNAL(changed()) );
}

PluginSelection::~PluginSelection()
{
}

void PluginSelection::readConfig()
{
  const KService::List offers = KServiceTypeTrader::self()->query(
      QString::fromLatin1( "Kontact/Plugin" ),
      QString( "[X-KDE-KontactPluginVersion] == %1" ).arg( KONTACT_PLUGIN_VERSION ) );

  int activeComponent = 0;
  mPluginCombo->clear();
  mPluginList.clear();
  for ( KService::List::ConstIterator it = offers.begin(); it != offers.end(); ++it ) {
    KService::Ptr service = *it;
    // skip summary only plugins
    QVariant var = service->property( "X-KDE-KontactPluginHasPart" );
    if ( var.isValid() && var.toBool() == false ) {
      continue;
    }
    mPluginCombo->addItem( service->name() );
    mPluginList.append( service );

    if ( service->property( "X-KDE-PluginInfo-Name" ).toString() == mItem->value() ) {
      activeComponent = mPluginList.count() - 1;
    }
  }

  mPluginCombo->setCurrentIndex( activeComponent );
}

void PluginSelection::writeConfig()
{
  KService::Ptr ptr =  mPluginList.at( mPluginCombo->currentIndex() );
  mItem->setValue( ptr->property( "X-KDE-PluginInfo-Name" ).toString() );
}

QList<QWidget *> PluginSelection::widgets() const
{
  QList<QWidget *> widgets;
  widgets.append( mPluginCombo );

  return widgets;
}

#include "kcmkontact.moc"
