#include <Wire.h> // Include the Wire library for I2C communication
#include <LiquidCrystal_I2C.h> // Include the LiquidCrystal I2C library
LiquidCrystal_I2C lcd(0x27, 16, 2);
// Define pins for buttons and LEDs
const int positiveButtonPin = 2;
const int negativeButtonPin = 3;
const int greenLedPin = 4;
const int redLedPin = 5;

// Variables to store feedback counts
int positiveCount = 0;
int negativeCount = 0;

void setup() {
  Wire.begin(); // Initialize I2C communication
  lcd.init(); // Initialize the LCD
  lcd.backlight(); // Turn on the backlight
  // Set button pins as inputs
  pinMode(positiveButtonPin, INPUT_PULLUP);
  pinMode(negativeButtonPin, INPUT_PULLUP);
  
  // Set LED pins as outputs
  pinMode(greenLedPin, OUTPUT);
  pinMode(redLedPin, OUTPUT);
  
  // Initialize LEDs to OFF state
  digitalWrite(greenLedPin, LOW);
  digitalWrite(redLedPin, LOW);

  Serial.begin(9600);
}

void loop() {
  // Check if positive feedback button is pressed
  if (digitalRead(positiveButtonPin) == LOW) {
    // Increment positive feedback count
    positiveCount++;
    
    // Blink green LED to indicate positive feedback
    digitalWrite(greenLedPin, HIGH);
    delay(500);
    digitalWrite(greenLedPin, LOW);
    delay(500);
  }
  
  // Check if negative feedback button is pressed
  if (digitalRead(negativeButtonPin) == LOW) {
    // Increment negative feedback count
    negativeCount++;
    
    // Blink red LED to indicate negative feedback
    digitalWrite(redLedPin, HIGH);
    delay(500);
    digitalWrite(redLedPin, LOW);
    delay(500);
  }

  
  if (millis()% 5000 == 0){
    Serial.println("========================================================================");
    Serial.print("Good Feedback count: ");
    Serial.println(positiveCount);
    Serial.print("Bad Feedback count: ");
    Serial.println(negativeCount);
    Serial.println("========================================================================");
  }
  
  // Clear the LCD display
  lcd.setCursor(0, 0); // Set cursor to first row
  lcd.print("Good:"); // Print cleanliness status
  lcd.print(positiveCount);
 // Clear the LCD display
  lcd.setCursor(0, 1); // Set cursor to first row
  lcd.print("Bad:"); // Print cleanliness status
  lcd.print(negativeCount);
  delay(100);
  

  // Print feedback counts to serial monitor (optional)
  //Serial.print("Positive count: ");
  //Serial.println(positiveCount);
  //Serial.print("Negative count: ");
  //Serial.println(negativeCount);
  
  // Delay to debounce buttons
 // delay(100
}