/*
  Copyright (c) 2009 Constantin Berzan <exit3219@gmail.com>

  Based on KMail code by:
  Copyright (c) 2002 Marc Mutz <mutz@kde.org>
  Copyright (c) 2007 Mathias Soeken <msoeken@tzi.de>

  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 "transportlistview.h"
#include "transport.h"
#include "transportmanager.h"
#include "transporttype.h"

#include <QHeaderView>
#include <QLineEdit>

#include <KDebug>
#include <KLocalizedString>

using namespace MailTransport;

TransportListView::TransportListView( QWidget *parent )
  : QTreeWidget( parent )
{
  setHeaderLabels( QStringList()
                     << i18nc( "@title:column email transport name", "Name" )
                     << i18nc( "@title:column email transport type", "Type" ) );
  setRootIsDecorated( false );
  header()->setMovable( false );
  header()->setResizeMode( QHeaderView::ResizeToContents );
  setAllColumnsShowFocus( true );
  setAlternatingRowColors( true );
  setSortingEnabled( true );
  sortByColumn( 0, Qt::AscendingOrder );
  setSelectionMode( SingleSelection );

  fillTransportList();
  connect( TransportManager::self(), SIGNAL(transportsChanged()),
           this, SLOT(fillTransportList()) );
}

void TransportListView::editItem( QTreeWidgetItem *item, int column )
{
  // TODO: is there a nicer way to make only the 'name' column editable?
  if ( column == 0 && item ) {
    Qt::ItemFlags oldFlags = item->flags();
    item->setFlags( oldFlags | Qt::ItemIsEditable );
    QTreeWidget::editItem( item, 0 );
    item->setFlags( oldFlags );
    const int id = item->data( 0, Qt::UserRole ).toInt();
    Transport *t = TransportManager::self()->transportById( id );
    if ( !t ) {
      kWarning() << "Transport" << id << "not known by manager.";
      return;
    }
    if ( TransportManager::self()->defaultTransportId() == t->id() ) {
      item->setText( 0, t->name() );
    }
  }
}

void TransportListView::commitData( QWidget *editor )
{
  if ( selectedItems().isEmpty() ) {
    // transport was deleted by someone else???
    kDebug() << "No selected item.";
    return;
  }
  QTreeWidgetItem *item = selectedItems().first();
  QLineEdit *edit = dynamic_cast<QLineEdit*>( editor ); // krazy:exclude=qclasses
  Q_ASSERT( edit ); // original code had if

  const int id = item->data( 0, Qt::UserRole ).toInt();
  Transport *t = TransportManager::self()->transportById( id );
  if ( !t ) {
    kWarning() << "Transport" << id << "not known by manager.";
    return;
  }
  kDebug() << "Renaming transport" << id << "to" << edit->text();
  t->setName( edit->text() );
  t->forceUniqueName();
  t->writeConfig();
}

void TransportListView::fillTransportList()
{
  // try to preserve the selection
  int selected = -1;
  if ( currentItem() ) {
    selected = currentItem()->data( 0, Qt::UserRole ).toInt();
  }

  clear();
  foreach ( Transport *t, TransportManager::self()->transports() ) {
    QTreeWidgetItem *item = new QTreeWidgetItem( this );
    item->setData( 0, Qt::UserRole, t->id() );
    QString name = t->name();
    if ( TransportManager::self()->defaultTransportId() == t->id() ) {
      name += i18nc( "@label the default mail transport", " (Default)" );
      QFont font( item->font(0) );
      font.setBold( true );
      item->setFont( 0, font );
    }
    item->setText( 0, name );
    item->setText( 1, t->transportType().name() );
    if ( t->id() == selected ) {
      setCurrentItem( item );
    }
  }
}