/*

 * register.c

 *

 * Copyrigth (C) 2010 Nicolas Cornu <nicolas.cornu@ensi-bourges.fr>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or (at

 * your option) any later version.

 *

 * This program 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

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

 * USA

 */

#include <glib.h>

#include <mcabber/logprint.h>

#include <jingle/register.h>

#include <jingle/jingle.h>

typedef struct {

  gchar *xmlns;

  JingleAppFuncs *funcs;

  JingleTransMethod method;

} AppHandlerEntry;

typedef struct {

  gchar *xmlns;

  JingleTransportFuncs *funcs;

  JingleTransType type;

  JingleTransMethod method;

} TransportHandlerEntry;

static AppHandlerEntry *jingle_find_app(const gchar *xmlns);

static TransportHandlerEntry *jingle_find_transport(const gchar *xmlns);

GSList *jingle_app_handlers = NULL;

GSList *jingle_transport_handlers = NULL;

void jingle_register_app(const gchar *xmlns, JingleAppFuncs *funcs,

                         JingleTransMethod method)

{

  if (!g_str_has_prefix(xmlns, NS_JINGLE_APP_PREFIX)) return;

  AppHandlerEntry *h = g_new(AppHandlerEntry, 1);

  h->xmlns  = g_strdup(xmlns);

  h->funcs  = funcs;

  h->method = method;

  jingle_app_handlers = g_slist_append(jingle_app_handlers, h);

}

void jingle_register_transport(const gchar *xmlns, JingleTransportFuncs *funcs,

                               JingleTransType type, JingleTransMethod method)

{

  if (!g_str_has_prefix(xmlns, NS_JINGLE_TRANSPORT_PREFIX)) return;

  TransportHandlerEntry *h = g_new(TransportHandlerEntry, 1);

  h->xmlns  = g_strdup(xmlns);

  h->funcs  = funcs;

  h->method = method;

  h->type = type;

  jingle_transport_handlers = g_slist_append(jingle_transport_handlers, h);

}

JingleAppFuncs *jingle_get_appfuncs(const gchar *xmlns)

{

  AppHandlerEntry *entry;

  return (entry = jingle_find_app(xmlns)) != NULL ? entry->funcs : NULL;

}

JingleTransportFuncs *jingle_get_transportfuncs(const gchar *xmlns)

{

  TransportHandlerEntry *entry;

  return (entry = jingle_find_transport(xmlns)) != NULL ? entry->funcs : NULL;

}

/**

 * This function should work with AppHandlerEntry and

 * TransportHandlerEntry as long as both start with xmlns.

 */

static gint jingle_entry_cmp(gconstpointer a, gconstpointer b)

{

  return g_strcmp0(((AppHandlerEntry *) a)->xmlns, (const gchar*) b);

}

static AppHandlerEntry *jingle_find_app(const gchar *xmlns)

{

  GSList *entry = g_slist_find_custom(jingle_app_handlers, xmlns,

                                      jingle_entry_cmp);

}

static TransportHandlerEntry *jingle_find_transport(const gchar *xmlns)

{

  GSList *entry = g_slist_find_custom(jingle_transport_handlers, xmlns,

                                      jingle_entry_cmp);

}

static void jingle_free_app(AppHandlerEntry *entry)

{

  g_free(entry->xmlns);

  g_free(entry);

}

static void jingle_free_transport(TransportHandlerEntry *entry)

{

  g_free(entry->xmlns);

  g_free(entry);

}

void jingle_unregister_app(const gchar *xmlns)

{

  AppHandlerEntry *entry = jingle_find_app(xmlns);

  if (entry) {

    jingle_free_app(entry);

    jingle_app_handlers = g_slist_remove(jingle_app_handlers, entry);

  }

}

void jingle_unregister_transport(const gchar *xmlns)

{

  TransportHandlerEntry *entry = jingle_find_transport(xmlns);

  if (entry) {

    jingle_free_transport(entry);

    jingle_transport_handlers = g_slist_remove(jingle_app_handlers, entry);

  }

}