//include the third party library to manage HID
#include "HID-Project.h"

//declare understandable var to recognise button in the code,
//the value is the pin number of the Arduino on which the push button is plugged
const int Button = 4;

int lastButtonStatus[32];

void setup() {
  //define the diffent pin of the arduino as input pullup
  pinMode(Button, INPUT_PULLUP);

  //initialise the gamepad
  Gamepad.begin();
}

//function that will be executed again and again and again...
void loop() {
  //to keep the loop clean and understandable
  //Button management externalised to another function
  ButtonCheck(Button, 1);
}


// function that check the button state
// the parameters are
// inputNB => the pin nb of the button of the push button
// gamepadButtonNb => which gamepad number will be pressed when the push button is pressed
void ButtonCheck(int inputNb, int gamepadButtonNb) {
  //we check and store the button status
  int ButtonVal = digitalRead(inputNb);

  // if the button state have changed, it means the user pressed or released the physical button
  if (ButtonVal != lastButtonStatus[inputNb]) {

    // if the status is LOW, it means the user pressed the physical push button
    // remember, the INPUT_PULLUP invert the value
    if (ButtonVal == LOW) {
      //don't forget to update the last status of the button
      lastButtonStatus[inputNb] = LOW;

      //and then we "press" the gamepad button
      Gamepad.press(gamepadButtonNb);
      Gamepad.write();
    }
    else { // if the input is HIGH, it means the user released the physical push button
      //don't forget to update the last status of the button
      lastButtonStatus[inputNb] = HIGH;

      //and then we "release" the gamepad button
      Gamepad.release(gamepadButtonNb);
      Gamepad.write();
    }
  }
}