/**************************************************************************
 *
 * Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
 *
 * 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.
 *
 *********************************************************************/
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "bacnet/config.h"
#include "bacnet/bacdef.h"
#include "bacnet/bacdcode.h"
#include "bacnet/apdu.h"
#include "bacnet/npdu.h"
#include "bacnet/abort.h"
#include "bacnet/lso.h"
/* basic objects, services, TSM, and datalink */
#include "bacnet/basic/services.h"
#include "bacnet/basic/tsm/tsm.h"
#include "bacnet/basic/object/device.h"
#include "bacnet/datalink/datalink.h"

/** @file h_lso.c  Handles BACnet Life Safey Operation messages. */

void handler_lso(uint8_t *service_request,
    uint16_t service_len,
    BACNET_ADDRESS *src,
    BACNET_CONFIRMED_SERVICE_DATA *service_data)
{
    BACNET_LSO_DATA data;
    int len = 0;
    int pdu_len = 0;
    BACNET_NPDU_DATA npdu_data;
#if PRINT_ENABLED
    int bytes_sent = 0;
#endif
    BACNET_ADDRESS my_address;

    /* encode the NPDU portion of the packet */
    datalink_get_my_address(&my_address);
    npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
    pdu_len = npdu_encode_pdu(
        &Handler_Transmit_Buffer[0], src, &my_address, &npdu_data);
    if (service_data->segmented_message) {
        /* we don't support segmentation - send an abort */
        len = abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
            true);
#if PRINT_ENABLED
        fprintf(stderr, "LSO: Segmented message.  Sending Abort!\n");
#endif
        goto LSO_ABORT;
    }

    len = lso_decode_service_request(service_request, service_len, &data);
#if PRINT_ENABLED
    if (len <= 0)
        fprintf(stderr, "LSO: Unable to decode Request!\n");
#endif
    if (len < 0) {
        /* bad decoding - send an abort */
        len = abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
        fprintf(stderr, "LSO: Bad Encoding.  Sending Abort!\n");
#endif
        goto LSO_ABORT;
    }

    /*
     ** Process Life Safety Operation Here
     */
#if PRINT_ENABLED
    fprintf(stderr,
        "Life Safety Operation: Received operation %d from process id %lu "
        "for object %lu\n",
        data.operation, (unsigned long)data.processId,
        (unsigned long)data.targetObject.instance);
#endif

    len = encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
        service_data->invoke_id, SERVICE_CONFIRMED_LIFE_SAFETY_OPERATION);
#if PRINT_ENABLED
    fprintf(stderr,
        "Life Safety Operation: "
        "Sending Simple Ack!\n");
#endif

LSO_ABORT:
    pdu_len += len;
#if PRINT_ENABLED
    bytes_sent =
#endif
        datalink_send_pdu(
            src, &npdu_data, &Handler_Transmit_Buffer[0], pdu_len);
#if PRINT_ENABLED
    if (bytes_sent <= 0)
        fprintf(stderr,
            "Life Safety Operation: "
            "Failed to send PDU (%s)!\n",
            strerror(errno));
#endif

    return;
}
