#include "Joystick.h"
#include "HX711.h"

// HX711 circuit wiring
const int LOADCELL_DOUT_PIN = 2;
const int LOADCELL_SCK_PIN = 3;

HX711 scale;

// Adjust these values based on your load cell's actual minimum and maximum readings
float calibration_factor = 40; // Adjust based on your setup
long zeroValue = 0; // The zero value after taring
long maxValue = 5000; // Adjusted maximum value based on your input

// Initialize the Joystick library
Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID,
  JOYSTICK_TYPE_JOYSTICK, 1, 0,  // 1 button, no hat switch
  false, false, false, false, false, false,
  false, false, false, true, false); // Only the brake axis is enabled

void setup() {
  Serial.begin(57600);
  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  scale.set_scale(calibration_factor); // Apply the calibration factor
  scale.tare();  // Reset the scale to zero

  Joystick.begin(false); // Initialize joystick without automatic send
  Joystick.setBrakeRange(0, 1023);
}

void loop() {
  if (scale.is_ready()) {
    long reading = scale.get_units();
    // Map the reading from the load cell range to the joystick brake range
    int brakeValue = map(reading, zeroValue, maxValue, 0, 1023);
    brakeValue = constrain(brakeValue, 0, 1023); // Ensure the value is within the expected range

    Joystick.setBrake(brakeValue);
    Joystick.sendState(); // Explicitly send the state to the joystick
    Serial.print("Mapped Brake value: ");
    Serial.println(brakeValue);
  } else {
    Serial.println("HX711 not found.");
  }
  delay(10); // Short delay for stability
}