#include <Arduino.h>
//#include <TinyUSB.h>

const int buttonPins[] = {0, 1, 2, 3, 4, 5, 6, 7};
const int directionPins[] = {8, 9, 10, 11};
const int startPin = 13;
const int selectPin = 12;

void setup() {
  Serial.begin(115200);

  for (int i = 0; i < 8; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }
  for (int i = 0; i < 4; i++) {
    pinMode(directionPins[i], INPUT_PULLUP);
  }
  pinMode(startPin, INPUT_PULLUP);
  pinMode(selectPin, INPUT_PULLUP);

  // TinyUSB Device init
  //TinyUSB_Device_Init(0);
}

void loop() {
  uint8_t buttons = 0;
  for (int i = 0; i < 8; i++) {
    if (digitalRead(buttonPins[i]) == LOW) {
      buttons |= (1 << i);
    }
  }

  uint8_t dpad = 0;
  if (digitalRead(directionPins[0]) == LOW) dpad |= 0x01; // Left
  if (digitalRead(directionPins[1]) == LOW) dpad |= 0x02; // Down
  if (digitalRead(directionPins[2]) == LOW) dpad |= 0x04; // Right
  if (digitalRead(directionPins[3]) == LOW) dpad |= 0x08; // Up

  uint8_t startSelect = 0;
  if (digitalRead(startPin) == LOW) startSelect |= 0x01;
  if (digitalRead(selectPin) == LOW) startSelect |= 0x02;

  // Print the states to the serial monitor
  Serial.print("Buttons: ");
  Serial.print(buttons, BIN);
  Serial.print(" | D-Pad: ");
  Serial.print(dpad, BIN);
  Serial.print(" | Start/Select: ");
  Serial.println(startSelect, BIN);

  // Create the HID report
  uint8_t report[4] = { buttons, dpad, startSelect, 0 };
  //TinyUSB_HID_SendReport(0, report, sizeof(report));

  delay(100);
}