/*
 * $Id$
 *
 * Copyright (C) 2012 Smile Communications, jason.penton@smilecoms.com
 * Copyright (C) 2012 Smile Communications, richard.good@smilecoms.com
 * 
 * The initial version of this code was written by Dragos Vingarzan
 * (dragos(dot)vingarzan(at)fokus(dot)fraunhofer(dot)de and the
 * Fruanhofer Institute. It was and still is maintained in a separate
 * branch of the original SER. We are therefore migrating it to
 * Kamailio/SR and look forward to maintaining it from here on out.
 * 2011/2012 Smile Communications, Pty. Ltd.
 * ported/maintained/improved by 
 * Jason Penton (jason(dot)penton(at)smilecoms.com and
 * Richard Good (richard(dot)good(at)smilecoms.com) as part of an 
 * effort to add full IMS support to Kamailio/SR using a new and
 * improved architecture
 * 
 * NB: Alot of this code was originally part of OpenIMSCore,
 * FhG Fokus. 
 * Copyright (C) 2004-2006 FhG Fokus
 * Thanks for great work! This is an effort to 
 * break apart the various CSCF functions into logically separate
 * components. We hope this will drive wider use. We also feel
 * that in this way the architecture is more complete and thereby easier
 * to manage in the Kamailio/SR environment
 *
 * This file is part of Kamailio, a free SIP server.
 *
 * Kamailio 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
 *
 * Kamailio 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 *
 *
 *
 * History:
 * --------
 *  2011-02-02  initial version (jason.penton)
 */



#include "../cdp_avp/mod_export.h"

#include "../../modules/dialog_ng/dlg_load.h"
#include "../ims_usrloc_pcscf/usrloc.h"
#include "rx_authdata.h"

#include "rx_asr.h"
#include "rx_avp.h"
#include "../../lib/ims/ims_getters.h"
#include "ims_qos_stats.h"

extern struct ims_qos_counters_h ims_qos_cnts_h;

/*
 * Called upon receipt of an ASR. Terminates the user session and returns the ASA.
 * Terminates the corresponding dialog
 * @param request - the received request
 * @returns 0 always because ASA will be generated by the State Machine
 *
 */
AAAMessage* rx_process_asr(AAAMessage *request) {
    AAASession* session;
    unsigned int code = 0;

    rx_authsessiondata_t* p_session_data = 0;

    if (!request || !request->sessionId) return 0;

    counter_inc(ims_qos_cnts_h.asrs);
    
    session = cdpb.AAAGetAuthSession(request->sessionId->data);

    if (!session) {
        LM_DBG("received an ASR but the session is already deleted\n");
        return 0;
    }
    
    code = rx_get_abort_cause(request);
    LM_DBG("abort-cause code is %u\n", code);

    LM_DBG("PCRF requested an ASR");


    p_session_data = (rx_authsessiondata_t*) session->u.auth.generic_data;
    if (p_session_data->subscribed_to_signaling_path_status) {
        LM_DBG("This is a subscription to signalling status\n");
    } else {
        LM_DBG("This is a normal media bearer -  bearer is releaed by CDP callbacks\n");
    }
    cdpb.AAASessionsUnlock(session->hash);
    return 0;
}