/**************************************************************************
*
* Copyright (C) 2015 bowe
*
* 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 <errno.h>
#include <string.h>
#include "config.h"
#include "txbuf.h"
#include "bacdef.h"
#include "bacdcode.h"
#include "address.h"
#include "tsm.h"
#include "npdu.h"
#include "apdu.h"
#include "device.h"
#include "datalink.h"
#include "dcc.h"
#include "getevent.h"
#include "bacenum.h"
/* some demo stuff needed */
#include "handlers.h"
#include "txbuf.h"
#include "client.h"
#define PRINT_ENABLED 1
/** @file s_getevent.c  Send a GetEventInformation request. */

/** Send a GetEventInformation request to a remote network for a specific device, a range,
 * or any device.
 * @param target_address [in] BACnet address of target or broadcast
 */
uint8_t Send_GetEvent(
        BACNET_ADDRESS * target_address,
        BACNET_OBJECT_ID * lastReceivedObjectIdentifier)
{
    int len = 0;
    int pdu_len = 0;
    int bytes_sent = 0;
    uint8_t invoke_id = 0;
    BACNET_NPDU_DATA npdu_data;
    BACNET_ADDRESS my_address;

    datalink_get_my_address(&my_address);
    /* encode the NPDU portion of the packet */
    npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);

    pdu_len =
        npdu_encode_pdu(&Handler_Transmit_Buffer[0], target_address,
        &my_address, &npdu_data);
    
    invoke_id = tsm_next_free_invokeID();
    if (invoke_id) {
        /* encode the APDU portion of the packet */
        len =
            getevent_encode_apdu(&Handler_Transmit_Buffer[pdu_len], invoke_id, lastReceivedObjectIdentifier);
        pdu_len += len;
        bytes_sent =
            datalink_send_pdu(target_address, &npdu_data,
            &Handler_Transmit_Buffer[0], pdu_len);
    #if PRINT_ENABLED
        if (bytes_sent <= 0)
            fprintf(stderr, "Failed to Send GetEventInformation Request (%s)!\n",
                strerror(errno));
    #endif
    } else {
            tsm_free_invoke_id(invoke_id);
            invoke_id = 0;
#if PRINT_ENABLED
            fprintf(stderr,
                "Failed to Send GetEventInformation Request "
                "(exceeds destination maximum APDU)!\n");
#endif
    }
    return invoke_id;
}

/** Send a global GetEventInformation request.
 */
uint8_t Send_GetEvent_Global( void )
{
    BACNET_ADDRESS dest;

    if (!dcc_communication_enabled())
        return -1;

    datalink_get_broadcast_address(&dest);

    return Send_GetEvent(&dest, NULL);
}