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/*
|  Copyright (C) 2002-2007 Jorg Schuler <jcsjcs at users sourceforge net>
|  Part of the gtkpod project.
| 
|  URL: http://www.gtkpod.org/
|  URL: http://gtkpod.sourceforge.net/
|
|  The code contained in this file is free software; you can redistribute
|  it and/or modify it under the terms of the GNU Lesser General Public
|  License as published by the Free Software Foundation; either version
|  2.1 of the License, or (at your option) any later version.
|
|  This file 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
|  Lesser General Public License for more details.
|
|  You should have received a copy of the GNU Lesser General Public
|  License along with this code; if not, write to the Free Software
|  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
|
|  iTunes and iPod are trademarks of Apple
|
|  This product is not supported/written/published by Apple!
|
|  $Id$
*/

#ifndef __ITDB_PRIVATE_H__
#define __ITDB_PRIVATE_H__

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif
#include "itdb_device.h"
#include "itdb.h"

/* always use itdb_playlist_is_mpl() to check for MPL! */
enum ItdbPlType { /* types for playlist->type */
    ITDB_PL_TYPE_NORM = 0,       /* normal playlist, visible in iPod */
    ITDB_PL_TYPE_MPL = 1         /* master playlist, contains all tracks,
				    not visible in iPod */
};

enum ItdbShadowDBVersion {
    ITDB_SHADOW_DB_UNKNOWN,
    ITDB_SHADOW_DB_V1,
    ITDB_SHADOW_DB_V2,
};

/* always use itdb_playlists_is_podcasts() to check for podcasts PL */
enum ItdbPlFlag { /* types for playlist->podcastflag */
    ITDB_PL_FLAG_NORM = 0,       /* normal playlist, visible under
				    'Playlists  */
    ITDB_PL_FLAG_PODCASTS = 1    /* special podcast playlist visible
				    under 'Music' */
};


struct FContents_;

typedef struct
{
    guint16 (* get16int) (struct FContents_ *cts, glong seek);
    guint32 (* get24int) (struct FContents_ *cts, glong seek);
    guint32 (* get32int) (struct FContents_ *cts, glong seek);
    guint64 (* get64int) (struct FContents_ *cts, glong seek);
    float (* get32float) (struct FContents_ *cts, glong seek);
} ByteReader;

/* keeps the contents of one disk file (read) */
typedef struct FContents_
{
    gchar *filename;
    gchar *contents;
    /* indicate that endian order is reversed as in the case of the
       iTunesDBs for mobile phones */
    gboolean reversed;
    ByteReader le_reader;
    ByteReader be_reader;
    gsize length;
    GError *error;
} FContents;

/* struct used to hold all necessary information when importing a
   Itdb_iTunesDB */
typedef struct
{
    Itdb_iTunesDB *itdb;
    FContents *fcontents;
    GList *pos_glist;    /* temporary list to store position indicators */
    GList *tracks;       /* temporary list to store tracks */
    GList *playcounts;   /* contents of Play Counts file */
    GHashTable *pcounts2;/* contents of the PlayCounts.plist file */
    GTree *idtree;       /* temporary tree with track id tree */
    GError *error;       /* where to report errors to */
} FImport;

/* data of playcounts GList above */
struct playcount {
    guint32 playcount;
    guint32 skipped;     /* skipped (only for Shuffle's iTunesStats */
    time_t time_played;
    guint32 bookmark_time;
    gint32 rating;
    gint32 pc_unk16;     /* unknown field in Play Counts file */
    guint32 skipcount;
    time_t last_skipped;
    gint32 st_unk06;     /* unknown field in iTunesStats file */
    gint32 st_unk09;     /* unknown field in iTunesStats file */
};

/* value to indicate that playcount was not set in struct playcount
   above */
#define NO_PLAYCOUNT (-1)


/* keeps the contents of the output file (write) */
typedef struct
{
    gchar *filename;
    gchar *contents;     /* pointer to contents */
    /* indicate that endian order is reversed as in the case of the
       iTunesDBs for mobile phones */
    gboolean reversed;
    gulong pos;          /* current write position ("end of file") */
    gulong total;        /* current total size of *contents array  */
    GError *error;       /* place to report errors to */
} WContents;

/* size of memory by which the total size of above WContents gets
 * increased (1.5 MB) */
#define WCONTENTS_STEPSIZE 1572864

/* struct used to hold all necessary information when exporting a
 * Itdb_iTunesDB */
typedef struct
{
    Itdb_iTunesDB *itdb;
    WContents *wcontents;
    guint32 next_id;       /* next free ID to use       */
    GHashTable *albums;    /* used to build the MHLA    */
    GHashTable *artists;   /* used to build the MHLI    */
    GHashTable *composers;
    GError *error;         /* where to report errors to */
} FExport;


enum _DbType {
    DB_TYPE_ITUNES,
    DB_TYPE_PHOTO
};

typedef enum _DbType DbType;

struct _Itdb_DB{
	DbType db_type;
	union {
		Itdb_PhotoDB *photodb; 
		Itdb_iTunesDB *itdb;
	} db;
};

typedef struct _Itdb_DB Itdb_DB;

/* Used to store album and artist IDs. Needed to write mhla/mhli in the
 * iTunesDB and to generate the sqlite files
 */
struct _Itdb_Item_Id {
  guint32 id;
  guint64 sql_id;
};
typedef struct _Itdb_Item_Id Itdb_Item_Id;

enum _Itdb_Playlist_Mhsd5_Type {
    ITDB_PLAYLIST_MHSD5_NONE          = 0,
    ITDB_PLAYLIST_MHSD5_MOVIES        = 2,
    ITDB_PLAYLIST_MHSD5_TV_SHOWS      = 3,
    ITDB_PLAYLIST_MHSD5_MUSIC         = 4,
    ITDB_PLAYLIST_MHSD5_AUDIOBOOKS    = 5,
    ITDB_PLAYLIST_MHSD5_RINGTONES     = 6,
    ITDB_PLAYLIST_MHSD5_MOVIE_RENTALS = 7
};
typedef enum _Itdb_Playlist_Mhsd5_Type Itdb_Playlist_Mhsd5_Type;

struct _Itdb_iTunesDB_Private
{
    GList *mhsd5_playlists;
    guint16 platform;
    guint16 unk_0x22;
    guint64 id_0x24;
    guint16 lang;
    guint64 pid;
    gint32 unk_0x50;
    gint32 unk_0x54;
    gint16 audio_language;
    gint16 subtitle_language;
    gint16 unk_0xa4;
    gint16 unk_0xa6;
    gint16 unk_0xa8;
    gchar *genius_cuid;
};

/* private data for Itdb_Track */
struct _Itdb_Track_Private {
	guint32 album_id;
	guint32 artist_id;
	guint32 composer_id;
};

struct _Itdb_Playlist_Private {
    Itdb_Playlist_Mhsd5_Type mhsd5_type;
};

G_GNUC_INTERNAL void itdb_playlist_add_mhsd5_playlist(Itdb_iTunesDB *itdb,
                                                      Itdb_Playlist *pl,
                                                      gint32 pos);
G_GNUC_INTERNAL gboolean itdb_spl_action_known (ItdbSPLAction action);
G_GNUC_INTERNAL void itdb_splr_free (Itdb_SPLRule *splr);
G_GNUC_INTERNAL const gchar *itdb_photodb_get_mountpoint (Itdb_PhotoDB *photodb);
G_GNUC_INTERNAL gchar *db_get_mountpoint (Itdb_DB *db);
G_GNUC_INTERNAL Itdb_Device *db_get_device(Itdb_DB *db);
G_GNUC_INTERNAL gint itdb_get_max_photo_id ( Itdb_PhotoDB *db );
G_GNUC_INTERNAL Itdb_iTunesDB *db_get_itunesdb (Itdb_DB *db);
G_GNUC_INTERNAL Itdb_PhotoDB *db_get_photodb (Itdb_DB *db);
G_GNUC_INTERNAL gint itdb_thumb_get_byteorder (ItdbThumbFormat format);
G_GNUC_INTERNAL time_t device_time_mac_to_time_t (Itdb_Device *device,
						guint64 mactime);
G_GNUC_INTERNAL guint64 device_time_time_t_to_mac (Itdb_Device *device,
						 time_t timet);
G_GNUC_INTERNAL gint itdb_musicdirs_number_by_mountpoint (const gchar *mountpoint);
G_GNUC_INTERNAL int itdb_sqlite_generate_itdbs(FExport *fexp);
G_GNUC_INTERNAL gboolean itdb_hashAB_write_hash (const Itdb_Device *device,
						 unsigned char *itdb_data,
						 gsize itdb_len,
						 GError **error);
G_GNUC_INTERNAL gboolean itdb_hash72_extract_hash_info(const Itdb_Device *device,
						       unsigned char *itdb_data,
						       gsize itdb_len);
G_GNUC_INTERNAL gboolean itdb_hash72_write_hash (const Itdb_Device *device,
						 unsigned char *itdb_data,
						 gsize itdb_len,
						 GError **error);
G_GNUC_INTERNAL gboolean itdb_hash58_write_hash (Itdb_Device *device,
						 unsigned char *itdb_data,
						 gsize itdb_len,
						 GError **error);
G_GNUC_INTERNAL gboolean itdb_hashAB_compute_hash_for_sha1 (const Itdb_Device *device,
							    const guchar sha1[20],
							    guchar signature[57],
							    GError **error);
G_GNUC_INTERNAL gboolean itdb_hash72_compute_hash_for_sha1 (const Itdb_Device *device,
							    const guchar sha1[20],
							    guchar signature[46],
							    GError **error);

G_GNUC_INTERNAL GByteArray *itdb_chapterdata_build_chapter_blob(Itdb_Chapterdata *chapterdata,
								gboolean reversed);

#ifdef HAVE_LIBIMOBILEDEVICE
G_GNUC_INTERNAL int itdb_iphone_start_sync(Itdb_Device *device, void **prepdata);
G_GNUC_INTERNAL int itdb_iphone_stop_sync(void *sync_ctx);
#endif
#endif