/*
  This file is part of libkldap.
  Copyright (c) 2006 Sean Harmer <sh@theharmers.co.uk>

  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 "ldapstructureproxymodel.h"
#include "ldapmodel.h"
#include "ldapmodelnode_p.h"

#include <kdebug.h>
#include <klocalizedstring.h>

using namespace KLDAP;

class LdapStructureProxyModel::LdapStructureProxyModelPrivate
{
  public:
    LdapStructureProxyModelPrivate();

};

LdapStructureProxyModel::LdapStructureProxyModelPrivate::LdapStructureProxyModelPrivate()
{

}

LdapStructureProxyModel::LdapStructureProxyModel( QObject *parent )
  : QSortFilterProxyModel( parent ),
    m_d( new LdapStructureProxyModelPrivate() )
{

}

LdapStructureProxyModel::~LdapStructureProxyModel()
{
  delete m_d;
}

QVariant LdapStructureProxyModel::data( const QModelIndex &index,
                                        int role ) const
{
  // Included just in case we decide to do any special presentation of the data
  // at some other point throughout the 4.x series.
  return sourceModel()->data( mapToSource( index ), role );
}

bool LdapStructureProxyModel::setData( const QModelIndex &index,
                                       const QVariant &value,
                                       int role )
{
  Q_UNUSED( index );
  Q_UNUSED( value );
  Q_UNUSED( role );
  return false;
}

bool LdapStructureProxyModel::filterAcceptsRow( int sourceRow,
                                                const QModelIndex &sourceParent ) const
{
  QModelIndex idx = sourceModel()->index( sourceRow, 0, sourceParent );
  LdapModelNode::NodeType nodeType =
    static_cast<LdapModelNode::NodeType>(
      sourceModel()->data( idx, LdapModel::NodeTypeRole ).toUInt() );
  return nodeType == LdapModelNode::DN;
}

QVariant LdapStructureProxyModel::headerData( int section,
                                              Qt::Orientation orientation,
                                              int role ) const
{
  Q_UNUSED( section );
  if ( orientation == Qt::Horizontal && role == Qt::DisplayRole ) {
    return i18n( "Distinguished Name" );
  }

  return QVariant();
}

int LdapStructureProxyModel::columnCount( const QModelIndex &/*parent*/ ) const
{
  // No need for more than one column just to show the structure
  return 1;
}

Qt::ItemFlags LdapStructureProxyModel::flags( const QModelIndex &index ) const
{
  // Included so as not to break BC in case we wish to use this later in 4.x
  return sourceModel()->flags( mapToSource( index ) );
}

bool LdapStructureProxyModel::hasChildren( const QModelIndex &parent ) const
{
  // We need to handle this carefully bacause of the filtering out of attributes
  // and the lazy population approach.
  LdapModel *model = static_cast<LdapModel*>( sourceModel() );
  return model->hasChildrenOfType( mapToSource( parent ), LdapModel::DistinguishedName );
}

QModelIndex LdapStructureProxyModel::mapFromSource( const QModelIndex &sourceIndex ) const
{
  return QSortFilterProxyModel::mapFromSource( sourceIndex );
}

QModelIndex LdapStructureProxyModel::mapToSource( const QModelIndex &proxyIndex ) const
{
  return QSortFilterProxyModel::mapToSource( proxyIndex );
}

bool LdapStructureProxyModel::insertRows( int row, int count,
                                          const QModelIndex &parent )
{
  Q_UNUSED( row );
  Q_UNUSED( count );
  Q_UNUSED( parent );
  return false;
}

bool LdapStructureProxyModel::removeRows( int row, int count,
                                          const QModelIndex &parent )
{
  Q_UNUSED( row );
  Q_UNUSED( count );
  Q_UNUSED( parent );
  return false;
}

void LdapStructureProxyModel::sort( int column, Qt::SortOrder order )
{
  Q_UNUSED( column );
  Q_UNUSED( order );
}

Qt::DropActions LdapStructureProxyModel::supportedDropActions() const
{
  return Qt::MoveAction;
}

QMimeData *LdapStructureProxyModel::mimeData( const QModelIndexList &indexes ) const
{
  Q_UNUSED( indexes );
  return 0;
}

bool LdapStructureProxyModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
                                            int row, int column, const QModelIndex &parent )
{
  /** \todo Implement drag and drop for LdapModel */
  Q_UNUSED( data );
  Q_UNUSED( action );
  Q_UNUSED( row );
  Q_UNUSED( column );
  Q_UNUSED( parent );
  return false;
}