/*

 * sessions.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/xmpp_helper.h>

#include <jingle/jingle.h>

#include <jingle/sessions.h>

#include <jingle/register.h>

static GSList *sessions;

/**

 * Create a new session and insert it in the linked list.

 */

JingleSession *session_new(JingleNode *jn)

{

  JingleSession *js = g_new0(JingleSession, 1);

  const gchar *from;

  js->sid = g_strdup(jn->sid);

  js->initiator = g_strdup(jn->initiator);

  from = lm_message_get_from(jn->message);

  if (!from) {

    return NULL;

  }

  js->from = g_strdup(from);

  sessions = g_slist_append(sessions, js);

  return js;

}

JingleSession *session_find_by_sid(const gchar *sid, const gchar *from)

{

  GSList *el;

  JingleSession *js;

  for (el = sessions; el; el = el->next) {

    js = (JingleSession*) el->data;

    if (g_strcmp0(js->sid, sid) && g_strcmp0(js->from, from)) {

      return js;

    }

  }

  return NULL;

}

JingleSession *session_find(const JingleNode *jn)

{

  const gchar *from = lm_message_get_from(jn->message);

  return session_find_by_sid(jn->sid, from);

}

void session_add_content(JingleSession *sess, JingleContent *cn,

                         SessionState state)

{

  SessionContent *sc = g_new0(SessionContent, 1);

  sc->name = cn->name;

  sc->state = state;

  sc->description = sc->appfuncs->check(cn, NULL);

  sess->content = g_slist_append(sess->content, sc);

}

SessionContent *session_find_sessioncontent(JingleSession *sess,

                                            const gchar *name)

{

  GSList *el;

  SessionContent *sc;

  for (el = sess->content; el; el = el->next) {

    sc = (SessionContent*) el->data;

      return sc;

  }

  return NULL;

}

void session_remove_sessioncontent(JingleSession *sess, const gchar *name)

{

  SessionContent *sc;

  sc = session_find_sessioncontent(sess, name);

  if(sc == NULL) return;

  if (sc->state == JINGLE_SESSION_STATE_ACTIVE); // We should stop the transfert

  sess->content = g_slist_remove(sess->content, sc);

}

void session_changestate_sessioncontent(JingleSession *sess, const gchar *name,

                                        SessionState state)

{

  SessionContent *sc;

  sc = session_find_sessioncontent(sess, name);

  if(sc != NULL)

    sc->state = state;

}

/**

 * Remove a session from the linked list and free it.

 */

void session_delete(JingleSession *sess)

{

  session_remove(sess);

  session_free(sess);

}

/**

 * Remove a session from the linked list.

 */

void session_remove(JingleSession *sess)

{

  sessions = g_slist_remove(sessions, sess);

}

/**

 * Free a session.

 */

void session_free(JingleSession *sess)

{

  g_free(sess->sid);

  g_free(sess->from);

  g_free(sess);

}