/**************************************************************************
*
* 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.
*
*********************************************************************/

/* Analog Input Objects customize for your use */

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "bacdef.h"
#include "bacdcode.h"
#include "bacenum.h"
#include "config.h"             /* the custom stuff */

#define MAX_ANALOG_INPUTS 7

/* These three arrays are used by the ReadPropertyMultiple handler */
static const int Analog_Input_Properties_Required[] =
{
    PROP_OBJECT_IDENTIFIER,
    PROP_OBJECT_NAME,
    PROP_OBJECT_TYPE,
    PROP_PRESENT_VALUE,
    PROP_STATUS_FLAGS,
    PROP_EVENT_STATE,
    PROP_OUT_OF_SERVICE,
    PROP_UNITS,
    -1
};

static const int Analog_Input_Properties_Optional[] =
{
    PROP_DESCRIPTION,
    -1
};

static const int Analog_Input_Properties_Proprietary[] =
{
    9997,
    9998,
    9999,
    -1
};

void Analog_Input_Property_Lists(
    const int **pRequired,
    const int **pOptional,
    const int **pProprietary)
{
    if (pRequired)
        *pRequired = Analog_Input_Properties_Required;
    if (pOptional)
        *pOptional = Analog_Input_Properties_Optional;
    if (pProprietary)
        *pProprietary = Analog_Input_Properties_Proprietary;

    return;
}

/* we simply have 0-n object instances.  Yours might be */
/* more complex, and then you need validate that the */
/* given instance exists */
bool Analog_Input_Valid_Instance(uint32_t object_instance)
{
    if (object_instance < MAX_ANALOG_INPUTS)
        return true;

    return false;
}

/* we simply have 0-n object instances.  Yours might be */
/* more complex, and then count how many you have */
unsigned Analog_Input_Count(void)
{
    return MAX_ANALOG_INPUTS;
}

/* we simply have 0-n object instances.  Yours might be */
/* more complex, and then you need to return the instance */
/* that correlates to the correct index */
uint32_t Analog_Input_Index_To_Instance(unsigned index)
{
    return index;
}

char *Analog_Input_Name(uint32_t object_instance)
{
    static char text_string[32] = "";   /* okay for single thread */

    if (object_instance < MAX_ANALOG_INPUTS) {
        sprintf(text_string, "ANALOG INPUT %u", object_instance);
        return text_string;
    }

    return NULL;
}

/* return apdu length, or -1 on error */
/* assumption - object has already exists */
int Analog_Input_Encode_Property_APDU(uint8_t * apdu,
    uint32_t object_instance,
    BACNET_PROPERTY_ID property,
    int32_t array_index,
    BACNET_ERROR_CLASS * error_class, BACNET_ERROR_CODE * error_code)
{
    int apdu_len = 0;           /* return value */
    BACNET_BIT_STRING bit_string;
    BACNET_CHARACTER_STRING char_string;
    float value = 3.14159F;

    (void) array_index;
    switch (property) {
    case PROP_OBJECT_IDENTIFIER:
        apdu_len = encode_application_object_id(&apdu[0], OBJECT_ANALOG_INPUT,
            object_instance);
        break;
    case PROP_OBJECT_NAME:
    case PROP_DESCRIPTION:
        characterstring_init_ansi(&char_string,
            Analog_Input_Name(object_instance));
        apdu_len = encode_application_character_string(&apdu[0], &char_string);
        break;
    case PROP_OBJECT_TYPE:
        apdu_len = encode_application_enumerated(&apdu[0], OBJECT_ANALOG_INPUT);
        break;
    case PROP_PRESENT_VALUE:
        apdu_len = encode_application_real(&apdu[0], value);
        break;
    case PROP_STATUS_FLAGS:
        bitstring_init(&bit_string);
        bitstring_set_bit(&bit_string, STATUS_FLAG_IN_ALARM, false);
        bitstring_set_bit(&bit_string, STATUS_FLAG_FAULT, false);
        bitstring_set_bit(&bit_string, STATUS_FLAG_OVERRIDDEN, false);
        bitstring_set_bit(&bit_string, STATUS_FLAG_OUT_OF_SERVICE, false);
        apdu_len = encode_application_bitstring(&apdu[0], &bit_string);
        break;
    case PROP_EVENT_STATE:
        apdu_len = encode_application_enumerated(&apdu[0], EVENT_STATE_NORMAL);
        break;
    case PROP_OUT_OF_SERVICE:
        apdu_len = encode_application_boolean(&apdu[0], false);
        break;
    case PROP_UNITS:
        apdu_len = encode_application_enumerated(&apdu[0], UNITS_PERCENT);
        break;
    case 9997:
        apdu_len = encode_application_real(&apdu[0], (float) 90.510);
        break;
    case 9998:
        apdu_len = encode_application_unsigned(&apdu[0], 90);
        break;
        /* test case for signed encoding-decoding negative value correctly */
    case 9999:
        apdu_len = encode_application_signed(&apdu[0], -200);
        break;
    default:
        *error_class = ERROR_CLASS_PROPERTY;
        *error_code = ERROR_CODE_UNKNOWN_PROPERTY;
        apdu_len = -1;
        break;
    }

    return apdu_len;
}

#ifdef TEST
#include <assert.h>
#include <string.h>
#include "ctest.h"

void testAnalogInput(Test * pTest)
{
    uint8_t apdu[MAX_APDU] = { 0 };
    int len = 0;
    uint32_t len_value = 0;
    uint8_t tag_number = 0;
    BACNET_OBJECT_TYPE decoded_type = OBJECT_ANALOG_OUTPUT;
    uint32_t decoded_instance = 0;
    uint32_t instance = 123;
    BACNET_ERROR_CLASS error_class;
    BACNET_ERROR_CODE error_code;


    /* FIXME: we should do a lot more testing here... */
    len = Analog_Input_Encode_Property_APDU(&apdu[0],
        instance,
        PROP_OBJECT_IDENTIFIER,
        BACNET_ARRAY_ALL, &error_class, &error_code);
    ct_test(pTest, len >= 0);
    len = decode_tag_number_and_value(&apdu[0], &tag_number, &len_value);
    ct_test(pTest, tag_number == BACNET_APPLICATION_TAG_OBJECT_ID);
    len = decode_object_id(&apdu[len],
        (int *) &decoded_type, &decoded_instance);
    ct_test(pTest, decoded_type == OBJECT_ANALOG_INPUT);
    ct_test(pTest, decoded_instance == instance);

    return;
}

#ifdef TEST_ANALOG_INPUT
int main(void)
{
    Test *pTest;
    bool rc;

    pTest = ct_create("BACnet Analog Input", NULL);
    /* individual tests */
    rc = ct_addTestFunction(pTest, testAnalogInput);
    assert(rc);

    ct_setStream(pTest, stdout);
    ct_run(pTest);
    (void) ct_report(pTest);
    ct_destroy(pTest);

    return 0;
}
#endif                          /* TEST_ANALOG_INPUT */
#endif                          /* TEST */