/**
 * @brief This module manages the BACnet WriteProperty handler
 * @author Steve Karg <skarg@users.sourceforge.net>
 * @author George Arun (Arduino adaptation, 2025-2026)
 * @date 2005
 * @copyright SPDX-License-Identifier: MIT
 */
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "../bacnet/config.h"
#include "../bacnet/datalink/datalink.h"
#include "../bacnet/basic/tsm/tsm.h"
#include "../bacnet/basic/services.h"
#include "../bacnet/bacdef.h"
#include "../bacnet/bacdcode.h"
#include "../bacnet/bacerror.h"
#include "../bacnet/apdu.h"
#include "../bacnet/npdu.h"
#include "../bacnet/abort.h"
#include "../bacnet/wp.h"
/* demo objects */
#include "../bacnet/basic/object/device.h"
#include "../bacnet/basic/object/av.h"
#include "../bacnet/basic/object/bv.h"

/* too big to reside on stack frame for PIC */
static BACNET_WRITE_PROPERTY_DATA wp_data;

void handler_write_property(
    uint8_t *service_request,
    uint16_t service_len,
    BACNET_ADDRESS *src,
    BACNET_CONFIRMED_SERVICE_DATA *service_data)
{
    int len = 0;
    int pdu_len = 0;
    BACNET_NPDU_DATA npdu_data;
    int bytes_sent = 0;
    BACNET_ADDRESS my_address;

    /* decode the service request only */
    len = wp_decode_service_request(service_request, service_len, &wp_data);
    /* 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);
    /* bad decoding or something we didn't understand - send an abort */
    if (len <= 0) {
        len = abort_encode_apdu(
            &Handler_Transmit_Buffer[pdu_len], service_data->invoke_id,
            ABORT_REASON_OTHER, true);
    } else if (service_data->segmented_message) {
        len = abort_encode_apdu(
            &Handler_Transmit_Buffer[pdu_len], service_data->invoke_id,
            ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
    } else {
        wp_data.error_class = ERROR_CLASS_OBJECT;
        wp_data.error_code = ERROR_CODE_UNKNOWN_OBJECT;
        switch (wp_data.object_type) {
            case OBJECT_DEVICE:
                if (Device_Write_Property(&wp_data)) {
                    len = encode_simple_ack(
                        &Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY);
                } else {
                    len = bacerror_encode_apdu(
                        &Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY, wp_data.error_class,
                        wp_data.error_code);
                }
                break;
            case OBJECT_ANALOG_VALUE:
                if (Analog_Value_Write_Property(&wp_data)) {
                    len = encode_simple_ack(
                        &Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY);
                } else {
                    len = bacerror_encode_apdu(
                        &Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY, wp_data.error_class,
                        wp_data.error_code);
                }
                break;
            case OBJECT_BINARY_VALUE:
                if (Binary_Value_Write_Property(&wp_data)) {
                    len = encode_simple_ack(
                        &Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY);
                } else {
                    len = bacerror_encode_apdu(
                        &Handler_Transmit_Buffer[pdu_len],
                        service_data->invoke_id,
                        SERVICE_CONFIRMED_WRITE_PROPERTY, wp_data.error_class,
                        wp_data.error_code);
                }
                break;
            default:
                len = bacerror_encode_apdu(
                    &Handler_Transmit_Buffer[pdu_len], service_data->invoke_id,
                    SERVICE_CONFIRMED_WRITE_PROPERTY, wp_data.error_class,
                    wp_data.error_code);
                break;
        }
    }
    pdu_len += len;
    bytes_sent = datalink_send_pdu(
        src, &npdu_data, &Handler_Transmit_Buffer[0], pdu_len);
    (void)bytes_sent;

    return;
}
