/*
  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 <QCheckBox>
#include <QHBoxLayout>
#include <QVBoxLayout>

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

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::fromLatin1( "[X-KDE-KontactPluginVersion] == %1" ).arg( KONTACT_PLUGIN_VERSION ) );

    int activeComponent = 0;
    mPluginCombo->clear();
    mPluginList.clear();
    KService::List::ConstIterator end( offers.end() );
    for ( KService::List::ConstIterator it = offers.begin(); it != end; ++it ) {
        KService::Ptr service = *it;
        // skip summary only plugins
        QVariant var = service->property( QLatin1String("X-KDE-KontactPluginHasPart") );
        if ( var.isValid() && var.toBool() == false ) {
            continue;
        }
        mPluginCombo->addItem( service->name() );
        mPluginList.append( service );

        if ( service->property( QLatin1String("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( QLatin1String("X-KDE-PluginInfo-Name") ).toString() );
}

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

    return widgets;
}

