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

// IR sensor pins
#define IR_SENSOR_1_PIN 2
#define IR_SENSOR_2_PIN 3

// Servo motor pin
#define SERVO_PIN 9

// LCD configuration
#define LCD_ADDRESS 0x27 // I2C address of the LCD
#define LCD_COLS 16      // Number of columns in the LCD
#define LCD_ROWS 2       // Number of rows in the LCD

LiquidCrystal_I2C lcd(0x27, 16, 1);
Servo gateServo;

void setup() {
  // Initialize LCD
  lcd.init();
  lcd.backlight();

  // Attach servo motor
  gateServo.attach(SERVO_PIN);

  // Set IR sensor pins as inputs
  pinMode(IR_SENSOR_1_PIN, INPUT);
  pinMode(IR_SENSOR_2_PIN, INPUT);
}

void loop() {
  // Read IR sensor values
  int irSensor1Value = digitalRead(IR_SENSOR_1_PIN);
  int irSensor2Value = digitalRead(IR_SENSOR_2_PIN);

  // Display status on LCD
  lcd.setCursor(0, 0);
  lcd.print("Parking 1: ");
  lcd.print(irSensor1Value == HIGH ? "Occupied" : "Vacant");

  lcd.setCursor(0, 1);
  lcd.print("Parking 2: ");
  lcd.print(irSensor2Value == HIGH ? "Occupied" : "Vacant");

  // Check if both parking spaces are occupied
  if (irSensor1Value == HIGH && irSensor2Value == HIGH) {
    openGate(); // If both spaces are occupied, open the gate
  } else {
    closeGate(); // Otherwise, keep the gate closed
  }

  delay(1000); // Delay for stability
}

void openGate() {
  gateServo.write(90); // Open the gate
  lcd.setCursor(0, 1);
  lcd.print("Gate: Open    ");
}

void closeGate() {
  gateServo.write(0); // Close the gate
  lcd.setCursor(0, 1);
  lcd.print("Gate: Closed  ");
}