/******************************************************************************
 * $Id$
 *
 * Copyright (c) 2007 Transmission authors and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *****************************************************************************/

#ifndef TR_CORE_H
#define TR_CORE_H

#include <string.h>

#include <glib-object.h>
#include <gtk/gtk.h>

#include "bencode.h"

#define TR_CORE_TYPE		( tr_core_get_type() )

#define TR_CORE( obj )                                                        \
  ( G_TYPE_CHECK_INSTANCE_CAST( (obj),   TR_CORE_TYPE, TrCore ) )

#define TR_CORE_CLASS( class )                                                \
  ( G_TYPE_CHECK_CLASS_CAST(    (class), TR_CORE_TYPE, TrCoreClass ) )

#define TR_IS_CORE( obj )                                                     \
  ( G_TYPE_CHECK_INSTANCE_TYPE( (obj),   TR_CORE_TYPE ) )

#define TR_IS_CORE_CLASS( class )                                             \
  ( G_TYPE_CHECK_CLASS_TYPE(    (class), TR_CORE_TYPE ) )

#define TR_CORE_GET_CLASS( obj )                                              \
  ( G_TYPE_INSTANCE_GET_CLASS(  (obj),   TR_CORE_TYPE, TrCoreClass ) )

typedef struct _TrCore TrCore;
typedef struct _TrCoreClass TrCoreClass;

/* treat the contents of this structure as private */
struct _TrCore
{
    GObject             parent;
    GtkTreeModel      * model;
    tr_handle_t       * handle;
    GList             * torrents;
    gboolean            quitting;
    gboolean            disposed;
};

struct _TrCoreClass
{
  GObjectClass          parent;
};

GType
tr_core_get_type( void );

TrCore *
tr_core_new( void );

/* Return the model used without incrementing the reference count */
GtkTreeModel *
tr_core_model( TrCore * self );

/* Returns the libtransmission handle */
tr_handle_t *
tr_core_handle( TrCore * self );

/* Try to politely stop all torrents and nat traversal */
void
tr_core_quit( TrCore * self );

/* Returns true if tr_core_quit() has been called and we are ready to quit */
gboolean
tr_core_did_quit( TrCore * self );

/* Destroy any torrents that haven't stopped already */
void
tr_core_force_quit( TrCore * self );

/* XXX temporary hack to deal with circular references */
void
tr_core_clear( TrCore * self );

/* Check for stopped torrents */
void
tr_core_reap( TrCore * self );

/* Save state. If error is not NULL is will be set to any error which
   occurs, this must be freed. */
void
tr_core_save( TrCore * self, char ** error );

/* Load saved state, return number of torrents added. If errors is not
   NULL then a char* is appended for each error which occurs, these
   must be freed. */
int
tr_core_load( TrCore * self, benc_val_t * state, GList ** errors );

/* Add a torrent. Torrent, dir, flags, and err arguments are the same
   as tr_torrent_new() */
gboolean
tr_core_add_torrent( TrCore * self, const char * torrent, const char * dir,
                     guint flags, char ** err );

/* remove a torrent, waiting for it to pause if necessary */
void
tr_core_delete_torrent( TrCore * self, void * torrent,
                        GtkTreeIter * iter /* XXX */ );

void
tr_core_update( TrCore * self );

/* column names for the model used to store torrent information */
/* keep this in sync with the type array in tr_core_init() in tr_core.c */
enum {
  MC_NAME, MC_SIZE, MC_STAT, MC_ERR, MC_TERR,
  MC_PROG, MC_DRATE, MC_URATE, MC_ETA, MC_PEERS,
  MC_UPEERS, MC_DPEERS, MC_SEED, MC_LEECH, MC_DONE,
  MC_DOWN, MC_UP, MC_LEFT, MC_TRACKER, MC_TORRENT, MC_ROW_COUNT,
};

#endif