/*
    This file is part of oxaccess.

    Copyright (c) 2009 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 "objectsrequestjob.h"

#include "davmanager.h"
#include "davutils.h"
#include "objectutils.h"
#include "oxutils.h"

#include <kio/davjob.h>

#include <QtCore/QDebug>

using namespace OXA;

ObjectsRequestJob::ObjectsRequestJob( const Folder &folder, qulonglong lastSync, Mode mode, QObject *parent )
  : KJob( parent ), mFolder( folder ), mLastSync( lastSync ), mMode( mode )
{
}

void ObjectsRequestJob::start()
{
  QDomDocument document;
  QDomElement multistatus = DAVUtils::addDavElement( document, document, QLatin1String( "multistatus" ) );
  QDomElement prop = DAVUtils::addDavElement( document, multistatus, QLatin1String( "prop" ) );
  DAVUtils::addOxElement( document, prop, QLatin1String( "folder_id" ), OXUtils::writeNumber( mFolder.objectId() ) );
  DAVUtils::addOxElement( document, prop, QLatin1String( "lastsync" ), OXUtils::writeNumber( mLastSync ) );
  if ( mMode == Modified )
    DAVUtils::addOxElement( document, prop, QLatin1String( "objectmode" ), QLatin1String( "MODIFIED" ) );
  else
    DAVUtils::addOxElement( document, prop, QLatin1String( "objectmode" ), QLatin1String( "DELETED" ) );

  const QString path = ObjectUtils::davPath( mFolder.module() );

  KIO::DavJob *job = DavManager::self()->createFindJob( path, document );
  connect( job, SIGNAL(result(KJob*)), SLOT(davJobFinished(KJob*)) );
}

Object::List ObjectsRequestJob::objects() const
{
  return mObjects;
}

void ObjectsRequestJob::davJobFinished( KJob *job )
{
  if ( job->error() ) {
    setError( job->error() );
    setErrorText( job->errorText() );
    emitResult();
    return;
  }

  KIO::DavJob *davJob = qobject_cast<KIO::DavJob*>( job );

  const QDomDocument document = davJob->response();

  QString errorText, errorStatus;
  if ( DAVUtils::davErrorOccurred( document, errorText, errorStatus ) ) {
    setError( UserDefinedError );
    setErrorText( errorText );
    emitResult();
    return;
  }

  QDomElement multistatus = document.documentElement();
  QDomElement response = multistatus.firstChildElement( QLatin1String( "response" ) );
  while ( !response.isNull() ) {
    const QDomNodeList props = response.elementsByTagName( "prop" );
    const QDomElement prop = props.at( 0 ).toElement();
    mObjects.append( ObjectUtils::parseObject( prop, mFolder.module() ) );
    response = response.nextSiblingElement();
  }

  emitResult();
}