#ifndef PORTABLE_NFC_SERVICE_H
#define PORTABLE_NFC_SERVICE_H

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

#define NFC_UID_MAX_BYTES 10
#define NFC_UID_STRING_MAX_LEN ((NFC_UID_MAX_BYTES * 2) + 1)

typedef enum {
    NFC_STATUS_OK = 0,
    NFC_STATUS_ERROR = -1,
    NFC_STATUS_BAD_PARAM = -2,
    NFC_STATUS_NOT_INITIALIZED = -3,
    NFC_STATUS_ALREADY_STARTED = -4,
} nfc_status_t;

typedef struct {
    uint8_t bytes[NFC_UID_MAX_BYTES];
    uint8_t length;
    char value[NFC_UID_STRING_MAX_LEN];
} nfc_uid_t;

typedef int (*nfc_can_poll_fn)(void *ctx);
typedef void (*nfc_uid_fn)(const nfc_uid_t *uid, void *ctx);
typedef void (*nfc_error_fn)(int status, void *ctx);

typedef struct {
    nfc_can_poll_fn can_poll;
    nfc_uid_fn on_uid;
    nfc_error_fn on_error;
    void *ctx;
} nfc_service_callbacks_t;

typedef struct {
    uint8_t i2c_bus;
    uint8_t i2c_fast_mode;
    uint8_t i2c_slave_addr;
    uint32_t reset_pin;
    uint32_t irq_pin;
    uint32_t task_stack_size;
    uint32_t task_priority;
    uint32_t debounce_ms;
    uint32_t disallowed_poll_delay_ms;
    uint32_t retry_poll_delay_ms;
    uint8_t max_fail_count;
} nfc_service_config_t;

void nfc_service_default_config(nfc_service_config_t *config);
int nfc_service_init(const nfc_service_config_t *config,
                     const nfc_service_callbacks_t *callbacks);
int nfc_service_start(void);
int nfc_service_stop(void);
int nfc_service_is_started(void);

#ifdef __cplusplus
}
#endif

#endif