#pragma once

#include <windows.h>

#include <stddef.h>
#include <stdint.h>

/*
    Initialize Aime IO provider DLL. Only called once, before any other
    functions exported from this DLL are called.
 */
HRESULT aime_io_init(void);

/*
    Poll for IC cards in the vicinity.

    - unit_no: Always 0 as of the current API version
 */
HRESULT aime_io_nfc_poll(uint8_t unit_no);

/*
    Attempt to read out a classic Aime card ID

    - unit_no: Always 0 as of the current API version
    - luid: Pointer to a ten-byte buffer that will receive the ID
    - luid_size: Size of the buffer at *luid. Always 10.

    Returns:

    - S_OK if a classic Aime is present and was read successfully
    - S_FALSE if no classic Aime card is present (*luid will be ignored)
    - Any HRESULT error if an error occured.
*/
HRESULT aime_io_nfc_get_aime_id(
        uint8_t unit_no,
        uint8_t *luid,
        size_t luid_size);

/*
    Attempt to read out a FeliCa card ID ("IDm"). The following are examples
    of FeliCa cards:

    - Amuse IC (which includes new-style Aime-branded cards, among others)
    - Smartphones with FeliCa NFC capability (uncommon outside Japan)
    - Various Japanese e-cash cards and train passes

    Parameters:

    - unit_no: Always 0 as of the current API version
    - IDm: Output parameter that will receive the card ID

    Returns:

    - S_OK if a FeliCa device is present and was read successfully
    - S_FALSE if no FeliCa device is present (*IDm will be ignored)
    - Any HRESULT error if an error occured.
*/
HRESULT aime_io_nfc_get_felica_id(uint8_t unit_no, uint64_t *IDm);

/*
    Change the color and brightness of the card reader's RGB lighting

    - unit_no: Always 0 as of the current API version
    - r, g, b: Primary color intensity, from 0 to 255 inclusive.
*/
void aime_io_led_set_color(uint8_t unit_no, uint8_t r, uint8_t g, uint8_t b);