#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int buttonA = 2;
const int buttonB = 3;
const int resetbutton = 4;

int votesA = 0;
int votesB = 0;

bool lastA = LOW;
bool lastB = LOW;
bool lastreset = LOW;

void setup() {
  lcd.begin(16, 2);
  lcd.backlight();
  pinMode(buttonA, INPUT);
  pinMode(buttonB, INPUT);
  pinMode(resetbutton, INPUT);
  lcd.setCursor(0, 0);
  lcd.print("Vote System");
  delay(1000);
  lcd.clear();
  updateDisplay();
}

void loop() {
  bool readA = digitalRead(buttonA);
  bool readB = digitalRead(buttonB);
  bool readreset = digitalRead(resetbutton);

  if (readA == HIGH && lastA == LOW) {
    votesA++;
    updateDisplay();
    delay(200); // debounce
  }
  if (readB == HIGH && lastB == LOW) {
    votesB++;
    updateDisplay();
    delay(200); // debounce
  }
  if (readreset == HIGH && lastreset == LOW) {
    votesA = 0;
    votesB = 0;
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("vote cleared ;)");
    delay(1000);
    updateDisplay();
    delay(200);
  }

  lastA = readA;
  lastB = readB;
  lastreset = readreset;
}

void updateDisplay() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("A: ");
  lcd.print(votesA);
  lcd.setCursor(0, 1);
  lcd.print("B: ");
  lcd.print(votesB);
}