/*
  This file is part of Kontact.

  Copyright (c) 2003 Kontact Developer <kde-pim@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 "kmail_plugin.h"
#include "kmailinterface.h"
#include "summarywidget.h"

#include <KABC/VCardDrag>
#include <KCalCore/MemoryCalendar>
#include <KCalCore/FileStorage>
#include <KCalUtils/ICalDrag>
#include <KCalUtils/VCalDrag>

#include <KontactInterface/Core>

#include <KAction>
#include <KActionCollection>
#include <KDebug>
#include <KIcon>
#include <KLocale>
#include <KStandardDirs>
#include <KTemporaryFile>

#include <QDropEvent>

using namespace KCalUtils;
using namespace KCalCore;

EXPORT_KONTACT_PLUGIN( KMailPlugin, kmail )

KMailPlugin::KMailPlugin( KontactInterface::Core *core, const QVariantList & )
  : KontactInterface::Plugin( core, core, "kmail2" ), m_instance( 0 )
{
  setComponentData( KontactPluginFactory::componentData() );

  KAction *action =
    new KAction( KIcon( "mail-message-new" ),
                 i18nc( "@action:inmenu", "New Message..." ), this );
  actionCollection()->addAction( "new_mail", action );
  action->setShortcut( QKeySequence( Qt::CTRL + Qt::SHIFT + Qt::Key_M ) );
  action->setHelpText(
    i18nc( "@info:status", "Create a new mail message" ) );
  action->setWhatsThis(
    i18nc( "@info:whatsthis",
           "You will be presented with a dialog where you can create "
           "and send a new email message." ) );
  connect( action, SIGNAL(triggered(bool)), SLOT(slotNewMail()) );
  insertNewAction( action );

  KAction *syncAction =
    new KAction( KIcon( "view-refresh" ),
                 i18nc( "@action:inmenu", "Sync Mail" ), this );
  syncAction->setHelpText(
    i18nc( "@info:status", "Synchronize groupware mail" ) );
  syncAction->setWhatsThis(
    i18nc( "@info:whatsthis",
           "Choose this option to synchronize your groupware email." ) );
  connect( syncAction, SIGNAL(triggered(bool)), SLOT(slotSyncFolders()) );
  actionCollection()->addAction( "sync_mail", syncAction );
  insertSyncAction( syncAction );

  mUniqueAppWatcher = new KontactInterface::UniqueAppWatcher(
      new KontactInterface::UniqueAppHandlerFactory<KMailUniqueAppHandler>(), this );
}

bool KMailPlugin::canDecodeMimeData( const QMimeData *mimeData ) const
{
  return
    ICalDrag::canDecode( mimeData ) ||
    VCalDrag::canDecode( mimeData ) ||
    KABC::VCardDrag::canDecode( mimeData );
}

void KMailPlugin::processDropEvent( QDropEvent *de )
{
  MemoryCalendar::Ptr cal( new MemoryCalendar( QString::fromLatin1( "UTC" ) ) );
  KABC::Addressee::List list;
  const QMimeData *md = de->mimeData();

  if ( VCalDrag::fromMimeData( md, cal ) || ICalDrag::fromMimeData( md, cal ) ) {
    KTemporaryFile tmp;
    tmp.setPrefix( "incidences-" );
    tmp.setSuffix( ".ics" );
    tmp.setAutoRemove( false );
    tmp.open();
    FileStorage storage( cal, tmp.fileName() );
    storage.save();
    openComposer( KUrl( tmp.fileName() ) );
  } else if ( KABC::VCardDrag::fromMimeData( md, list ) ) {
    KABC::Addressee::List::Iterator it;
    QStringList to;
    for ( it = list.begin(); it != list.end(); ++it ) {
      to.append( ( *it ).fullEmail() );
    }
    openComposer( to.join( ", " ) );
  }

  kWarning() << QString( "Cannot handle drop events of type '%1'." ).arg( de->format() );
}

void KMailPlugin::openComposer( const KUrl &attach )
{
  (void) part(); // ensure part is loaded
  Q_ASSERT( m_instance );
  if ( m_instance ) {
    if ( attach.isValid() ) {
      m_instance->newMessage( "", "", "", false, true, QString(), attach.isLocalFile() ?
                              attach.toLocalFile() : attach.path() );
    } else {
      m_instance->newMessage( "", "", "", false, true, QString(), QString() );
    }
  }
}

void KMailPlugin::openComposer( const QString &to )
{
  (void) part(); // ensure part is loaded
  Q_ASSERT( m_instance );
  if ( m_instance ) {
    m_instance->newMessage( to, "", "", false, true, QString(), QString() );
  }
}

void KMailPlugin::slotNewMail()
{
  openComposer( QString::null ); //krazy:exclude=nullstrassign for old broken gcc
}

void KMailPlugin::slotSyncFolders()
{
  QDBusMessage message =
      QDBusMessage::createMethodCall( "org.kde.kmail", "/KMail",
                                      "org.kde.kmail.kmail",
                                      "checkMail" );
  QDBusConnection::sessionBus().send( message );
}

KMailPlugin::~KMailPlugin()
{
  delete m_instance;
  m_instance = 0;
}

bool KMailPlugin::createDBUSInterface( const QString &serviceType )
{
  if ( serviceType == QLatin1String( "DBUS/Mailer" ) ) {
    if ( part() ) {
      return true;
    }
  }
  return false;
}

QString KMailPlugin::tipFile() const
{
  const QString file = KStandardDirs::locate( "data", "kmail/tips" );
  return file;
}

KParts::ReadOnlyPart *KMailPlugin::createPart()
{
  KParts::ReadOnlyPart *part = loadPart();
  if ( !part ) {
    return 0;
  }

  m_instance = new OrgKdeKmailKmailInterface(
    "org.kde.kmail", "/KMail", QDBusConnection::sessionBus() );

  return part;
}

QStringList KMailPlugin::invisibleToolbarActions() const
{
  return QStringList( "new_message" );
}

bool KMailPlugin::isRunningStandalone() const
{
  return mUniqueAppWatcher->isRunningStandalone();
}

KontactInterface::Summary *KMailPlugin::createSummaryWidget( QWidget *parent )
{
  return new SummaryWidget( this, parent );
}

////

#include "../../../kmail/kmail_options.h"
void KMailUniqueAppHandler::loadCommandLineOptions()
{
    KCmdLineArgs::addCmdLineOptions( kmail_options() );
}

int KMailUniqueAppHandler::newInstance()
{
    // Ensure part is loaded
    (void)plugin()->part();
    org::kde::kmail::kmail kmail( "org.kde.kmail", "/KMail", QDBusConnection::sessionBus() );
    QDBusReply<bool> reply = kmail.handleCommandLine( false );

    if ( reply.isValid() ) {
      bool handled = reply;
      if ( !handled ) { // no args -> simply bring kmail plugin to front
        return KontactInterface::UniqueAppHandler::newInstance();
      }
    }
    return 0;
}

bool KMailPlugin::queryClose() const
{
  org::kde::kmail::kmail kmail( "org.kde.kmail", "/KMail", QDBusConnection::sessionBus() );
  QDBusReply<bool> canClose = kmail.canQueryClose();
  return canClose;
}

#include "kmail_plugin.moc"
