/*
    Copyright (c) 2009 Kevin Ottens <ervin@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 "namespacejob.h"

#include <KDE/KDebug>
#include <KDE/KLocalizedString>

#include "job_p.h"
#include "listjob.h"
#include "message_p.h"
#include "rfccodecs.h"
#include "session_p.h"
#include "imapstreamparser.h"

namespace KIMAP
{
  class NamespaceJobPrivate : public JobPrivate
  {
    public:
      NamespaceJobPrivate( Session *session,  const QString& name ) : JobPrivate( session, name ) { }
      ~NamespaceJobPrivate() { }

      QList<MailBoxDescriptor> processNamespaceList( const QList<QByteArray> &namespaceList )
      {
        QList<MailBoxDescriptor> result;

        foreach ( const QByteArray &namespaceItem, namespaceList ) {
            ImapStreamParser parser( 0 );
            parser.setData( namespaceItem );

            try {
                QList<QByteArray> parts = parser.readParenthesizedList();
                if ( parts.size() < 2 ) {
                    continue;
                }
                MailBoxDescriptor descriptor;
                descriptor.name = QString::fromUtf8( decodeImapFolderName( parts[0] ) );
                descriptor.separator = QLatin1Char( parts[1][0] );

                result << descriptor;
            } catch ( KIMAP::ImapParserException e ) {
                qWarning() << "The stream parser raised an exception during namespace list parsing:" << e.what();
                qWarning() << "namespacelist:" << namespaceList;
            }

        }

        return result;
      }

      QList<MailBoxDescriptor> personalNamespaces;
      QList<MailBoxDescriptor> userNamespaces;
      QList<MailBoxDescriptor> sharedNamespaces;
  };
}

using namespace KIMAP;

NamespaceJob::NamespaceJob( Session *session )
  : Job( *new NamespaceJobPrivate( session, i18n( "Namespace" ) ) )
{
}

NamespaceJob::~NamespaceJob()
{
}

QList<MailBoxDescriptor> NamespaceJob::personalNamespaces() const
{
  Q_D( const NamespaceJob );
  return d->personalNamespaces;
}

QList<MailBoxDescriptor> NamespaceJob::userNamespaces() const
{
  Q_D( const NamespaceJob );
  return d->userNamespaces;
}

QList<MailBoxDescriptor> NamespaceJob::sharedNamespaces() const
{
  Q_D( const NamespaceJob );
  return d->sharedNamespaces;
}

bool NamespaceJob::containsEmptyNamespace() const
{
  Q_D( const NamespaceJob );
  QList<MailBoxDescriptor> completeList = d->personalNamespaces
                                        + d->userNamespaces
                                        + d->sharedNamespaces;

  foreach ( const MailBoxDescriptor &descriptor, completeList ) {
    if ( descriptor.name.isEmpty() ) {
      return true;
    }
  }

  return false;
}

void NamespaceJob::doStart()
{
  Q_D( NamespaceJob );
  d->tags << d->sessionInternal()->sendCommand( "NAMESPACE" );
}

void NamespaceJob::handleResponse( const Message &response )
{
  Q_D( NamespaceJob );
  if ( handleErrorReplies( response ) == NotHandled ) {
    if ( response.content.size() >= 5 &&
         response.content[1].toString() == "NAMESPACE" ) {
      // Personal namespaces
      d->personalNamespaces = d->processNamespaceList( response.content[2].toList() );

      // User namespaces
      d->userNamespaces = d->processNamespaceList( response.content[3].toList() );

      // Shared namespaces
      d->sharedNamespaces = d->processNamespaceList( response.content[4].toList() );
    }
  }
}