#ifndef ADXL345_CONTROLLER_H
#define ADXL345_CONTROLLER_H

#include <Arduino.h>
#include <Wire.h>

#define ADXL345_DEVID          0x00
#define ADXL345_THRESH_TAP     0x1D
#define ADXL345_OFSX           0x1E
#define ADXL345_OFSY           0x1F
#define ADXL345_OFSZ           0x20
#define ADXL345_DUR            0x21
#define ADXL345_LATENT         0x22
#define ADXL345_WINDOW         0x23
#define ADXL345_THRESH_ACT     0x24
#define ADXL345_THRESH_INACT   0x25
#define ADXL345_TIME_INACT     0x26
#define ADXL345_ACT_INACT_CTL  0x27
#define ADXL345_THRESH_FF      0x28
#define ADXL345_TIME_FF        0x29
#define ADXL345_TAP_AXES       0x2A
#define ADXL345_ACT_TAP_STATUS 0x2B
#define ADXL345_BW_RATE        0x2C
#define ADXL345_POWER_CTL      0x2D
#define ADXL345_INT_ENABLE     0x2E
#define ADXL345_INT_MAP        0x2F
#define ADXL345_INT_SOURCE     0x30
#define ADXL345_DATA_FORMAT    0x31
#define ADXL345_DATAX0         0x32
#define ADXL345_DATAX1         0x33
#define ADXL345_DATAY0         0x34
#define ADXL345_DATAY1         0x35
#define ADXL345_DATAZ0         0x36
#define ADXL345_DATAZ1         0x37
#define ADXL345_FIFO_CTL       0x38
#define ADXL345_FIFO_STATUS    0x39

#define DEFAULT_MIN_READ_INTERVAL 50

class ADXL345Controller {
private:
    uint8_t _deviceAddress;
    unsigned long _lastReadTime;
    unsigned long _minReadInterval;
    double _lastX;
    double _lastY;
    double _lastZ;
    bool _lastReadSuccess;
    
    void setRegister(uint8_t reg, uint8_t value);
    uint8_t readRegister(uint8_t reg);
    void readRegisters(uint8_t reg, uint8_t count, uint8_t *buffer);

public:
    ADXL345Controller(uint8_t deviceAddress = 0x53);
    
    void begin();
    
    bool read();
    
    double getX();
    double getY();
    double getZ();
    
    bool isLastReadSuccessful() const;
    void setMinReadInterval(unsigned long interval);
    void setRange(uint8_t range);
    void setDataRate(uint8_t rate);
    void setOffsets(int8_t xOffset, int8_t yOffset, int8_t zOffset);
};

#endif