#pragma once

#include <stdint.h>

#include "driver/i2c_master.h"
#include "esp_err.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    i2c_master_dev_handle_t device;
    uint8_t address;
} adxl345_t;

typedef struct {
    int16_t x;
    int16_t y;
    int16_t z;
} adxl345_sample_t;

#define ADXL345_INT_SOURCE_DATA_READY 0x80
#define ADXL345_INT_SOURCE_OVERRUN    0x01

/** Detect, identify, and configure an ADXL345 for 100 Hz, full-resolution +/-8 g. */
esp_err_t adxl345_init(adxl345_t *sensor, i2c_master_bus_handle_t bus, uint32_t bus_speed_hz);

/** Remove the sensor from its I2C bus. Safe to call on an uninitialized handle. */
esp_err_t adxl345_deinit(adxl345_t *sensor);

/** Read INT_SOURCE followed by one sensor-native, uncalibrated XYZ sample. */
esp_err_t adxl345_read_raw(const adxl345_t *sensor, adxl345_sample_t *sample,
                           uint8_t *interrupt_source);

uint8_t adxl345_address(const adxl345_t *sensor);

#ifdef __cplusplus
}
#endif