/*
 * PlaylistFileReader.h - Media Player for the Haiku Operating System
 *
 * Copyright (C) 2006 Marcus Overhagen  <marcus@overhagen.de>
 * Copyright (C) 2007-2009 Stephan Aßmus <superstippi@gmx.de> (MIT ok)
 * Copyright (C) 2008-2009 Fredrik Modéen <[FirstName]@[LastName].se> (MIT ok)
 *
 * Released under the terms of the MIT license.
 */
#ifndef __PLAYLIST_FILE_READER_H
#define __PLAYLIST_FILE_READER_H


#include <SupportDefs.h>

class BString;
struct entry_ref;
class Playlist;

enum PlaylistFileType {m3u, pls, unknown};


class PlaylistFileReader {
public:
        virtual                                         ~PlaylistFileReader() {}
                // Defined to enable deletion of PlaylistFileReader* target objects.

        virtual void                            AppendToPlaylist(const entry_ref& ref,
                                                                        Playlist* playlist) = 0;
        static  PlaylistFileReader*     GenerateReader(const entry_ref& ref);
                // Returns a pointer to an object of the appropriate derived class,
                // or returns NULL if the argument is not a valid playlist file.

protected:
                        int32                           _AppendItemToPlaylist(const BString& entry, Playlist* playlist);
                // Returns the track's playlist index if it was successfully added, else returns -1.
                // BString& entry is a (absolute or relative) file path or URL

private:
        static  PlaylistFileType        _IdentifyType(const entry_ref& ref);
};


class M3uReader : public PlaylistFileReader {
public:
        virtual void                            AppendToPlaylist(const entry_ref& ref, Playlist* playlist);
};


class PlsReader : public PlaylistFileReader {
public:
        virtual void                            AppendToPlaylist(const entry_ref& ref,
                                                                        Playlist* playlist);
private:
                        status_t                        _ParseTitleLine(const BString& title, Playlist* playlist,
                                                                        const int32 lastAssignedIndex);
                        status_t                        _ParseLengthLine(const BString& length, Playlist* playlist,
                                                                        const int32 lastAssignedIndex);
};


#endif