/*
    This file is part of Akonadi Contact.

    Copyright (c) 2010 Tobias Koenig <tokoe@kde.org>

    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 "immodel.h"

#include "improtocols.h"

#include <kicon.h>
#include <klocale.h>

IMAddress::IMAddress()
  : mProtocol( QLatin1String( "messaging/aim" ) ), mPreferred( false )
{
}

IMAddress::IMAddress( const QString &protocol, const QString &name, bool preferred )
  : mProtocol( protocol ), mName( name ), mPreferred( preferred )
{
}

void IMAddress::setProtocol( const QString &protocol )
{
  mProtocol = protocol;
}

QString IMAddress::protocol() const
{
  return mProtocol;
}

void IMAddress::setName( const QString &name )
{
  mName = name;
}

QString IMAddress::name() const
{
  return mName;
}

void IMAddress::setPreferred( bool preferred )
{
  mPreferred = preferred;
}

bool IMAddress::preferred() const
{
  return mPreferred;
}


IMModel::IMModel( QObject *parent )
  : QAbstractItemModel( parent )
{
}

IMModel::~IMModel()
{
}

void IMModel::setAddresses( const IMAddress::List &addresses )
{
  emit layoutAboutToBeChanged();

  mAddresses = addresses;

  emit layoutChanged();
}

IMAddress::List IMModel::addresses() const
{
  return mAddresses;
}

QModelIndex IMModel::index( int row, int column, const QModelIndex& ) const
{
  return createIndex( row, column, 0 );
}

QModelIndex IMModel::parent( const QModelIndex& ) const
{
  return QModelIndex();
}

QVariant IMModel::data( const QModelIndex &index, int role ) const
{
  if ( !index.isValid() )
    return QVariant();

  if ( index.row() < 0 || index.row() >= mAddresses.count() )
    return QVariant();

  if ( index.column() < 0 || index.column() > 1 )
    return QVariant();

  const IMAddress &address = mAddresses[ index.row() ];

  if ( role == Qt::DisplayRole ) {
    if ( index.column() == 0 )
      return IMProtocols::self()->name( address.protocol() );
    else
      return address.name();
  }

  if ( role == Qt::DecorationRole ) {
    if ( index.column() == 1 )
      return QVariant();

    return KIcon( IMProtocols::self()->icon( address.protocol() ) );
  }

  if ( role == Qt::EditRole ) {
    if ( index.column() == 0 )
      return address.protocol();
    else
      return address.name();
  }

  if ( role == ProtocolRole )
    return address.protocol();

  if ( role == IsPreferredRole )
    return address.preferred();

  return QVariant();
}

bool IMModel::setData( const QModelIndex &index, const QVariant &value, int role )
{
  if ( !index.isValid() )
    return false;

  if ( index.row() < 0 || index.row() >= mAddresses.count() )
    return false;

  if ( index.column() < 0 || index.column() > 1 )
    return false;

  IMAddress &address = mAddresses[ index.row() ];

  if ( role == Qt::EditRole ) {
    if ( index.column() == 1 ) {
      address.setName( value.toString() );
      emit dataChanged( index, index );
      return true;
    }
  }

  if ( role == ProtocolRole ) {
    address.setProtocol( value.toString() );
    emit dataChanged( this->index( index.row(), 0 ), this->index( index.row(), 1 ) );
    return true;
  }

  if ( role == IsPreferredRole ) {
    address.setPreferred( value.toBool() );
    emit dataChanged( this->index( index.row(), 0 ), this->index( index.row(), 1 ) );
    return true;
  }

  return false;
}

QVariant IMModel::headerData( int section, Qt::Orientation orientation, int role ) const
{
  if ( section < 0 || section > 1 )
    return QVariant();

  if ( orientation != Qt::Horizontal )
    return QVariant();

  if ( role != Qt::DisplayRole )
    return QVariant();

  if ( section == 0 )
    return i18nc( "instant messaging protocol", "Protocol" );
  else
    return i18nc( "instant messaging address", "Address" );
}

Qt::ItemFlags IMModel::flags( const QModelIndex &index ) const
{
  if ( !index.isValid() || index.row() < 0 || index.row() >= mAddresses.count() )
    return QAbstractItemModel::flags( index );

  const Qt::ItemFlags parentFlags = QAbstractItemModel::flags( index );
  return (parentFlags | Qt::ItemIsEnabled | Qt::ItemIsEditable);
}

int IMModel::columnCount( const QModelIndex &parent ) const
{
  if ( !parent.isValid() )
    return 2;
  else
    return 0;
}

int IMModel::rowCount( const QModelIndex &parent ) const
{
  if ( !parent.isValid() )
    return mAddresses.count();
  else
    return 0;
}

bool IMModel::insertRows( int row, int count, const QModelIndex &parent )
{
  if ( parent.isValid() )
    return false;

  beginInsertRows( parent, row, row + count - 1 );
  for ( int i = 0; i < count; ++i )
    mAddresses.insert( row, IMAddress() );
  endInsertRows();

  return true;
}

bool IMModel::removeRows( int row, int count, const QModelIndex &parent )
{
  if ( parent.isValid() )
    return false;

  beginRemoveRows( parent, row, row + count - 1 );
  for ( int i = 0; i < count; ++i )
    mAddresses.removeAt( row );
  endRemoveRows();

  return true;
}

