asynccddbplookup.h

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/*
  Copyright (C) 2002 Rik Hemsley (rikkus) <rik@kde.org>
  Copyright (C) 2002 Benjamin Meyer <ben-devel@meyerhome.net>

  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.
*/

#ifndef KCDDB_ASYNC_CDDBP_LOOKUP_H
#define KCDDB_ASYNC_CDDBP_LOOKUP_H


#include "cddbplookup.h"

namespace KCDDB
{
  class AsyncCDDBPLookup : public CDDBPLookup 
  {
    Q_OBJECT

    public:

      enum State
      {
        Idle,
        WaitingForConnection,
        WaitingForGreeting,
        WaitingForHandshake,
        WaitingForProtoResponse,
        WaitingForQueryResponse,
        WaitingForMoreMatches,
        WaitingForCDInfoResponse,
        WaitingForCDInfoData,
        WaitingForQuitResponse
      };

      AsyncCDDBPLookup();

      virtual ~AsyncCDDBPLookup();

      Result lookup( const QString &, uint, const TrackOffsetList & );

    signals:

      void finished( KCDDB::Result );
      void quit( Result );

    protected slots:

      void slotGotError(QAbstractSocket::SocketError error);
      void slotConnectionSuccess();
      void slotReadyRead();

    protected:

      void doHandshake();
      void doProto();
      void doQuery();
      void doQuit();

      bool parseQueryResponse( const QString & );
      void requestCDInfoForMatch();
      bool parseCDInfoResponse( const QString & );
      void parseCDInfoData();

      void read();

      QString readLine();

      QString stateToString() const;

    private:

      State state_;
      Result result_;
      QStringList cdInfoBuffer_;
  };
}

#endif // KCDDB_ASYNC_CDDBP_LOOKUP_H
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