#define BLYNK_TEMPLATE_ID "TMPLIz-fX_vl"
#define BLYNK_DEVICE_NAME "Smart Parking"
#define BLYNK_AUTH_TOKEN "3C4Q8qg9sXqQ0rUnFb88NCdGCvm7ggnj"

#define BLYNK_PRINT Serial

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include <ESP32Servo.h> 
#include<BlynkSimpleEsp32.h>

char token[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST"; 
char pass[] = ""; 

LiquidCrystal_I2C lcd(0x27,16,2);  //Change the HEX address

Servo myservo1;

int IR1 = 2;
int IR2 = 4;

int Slot = 4;           //Enter Total number of parking Slots

int flag1 = 0;
int flag2 = 0;

String boot = "     SMART    ";
String boot2 = " PARKING SYSTEM ";
String prk = "     MAAF :(    ";
String prk2 = " PARKIRAN PENUH ";
String slot = "SELAMAT DATANG ! ";
String slot2 = "SLOT TERSEDIA: ";

WidgetLCD lcd2(V0);

void setup() {
  Serial.begin(115200);
  Blynk.begin(token, ssid, pass);

  lcd.init();
  lcd.backlight();
  pinMode(IR1, INPUT);
  pinMode(IR2, INPUT);
  
  myservo1.attach(12);
  myservo1.write(100);

  lcd.setCursor (0,0);
  lcd.print(boot);
  lcd.setCursor (0,1);
  lcd.print(boot2);

  lcd2.clear();
  lcd2.print(0,0,boot);
  lcd2.print(0,1,boot2);

  //  Blynk.virtualWrite(V0,boot);
  //  Blynk.virtualWrite(V1,boot2);

  delay (2000);
  lcd.clear();  
}

void loop(){ 

  Blynk.run();

  if(digitalRead (IR1) == LOW && flag1==0){

    if(Slot>0){
      
      flag1=1;

      if(flag2==0){

        myservo1.write(0); 
        Slot = Slot-1;

      }
      }else{
        lcd.setCursor (0,0);
        lcd.print(prk);  
        lcd.setCursor (0,1);
        lcd.print(prk2); 

        lcd2.print(0,0,prk);
        lcd2.print(0,1,prk2);
        delay (3000);
        lcd.clear(); 
      }
  }

  if(digitalRead (IR2) == LOW && flag2==0){
    flag2=1;
    if(flag1==0){
      myservo1.write(0); 
      Slot = Slot+1;
      }
  }

  if(flag1==1 && flag2==1){
    delay (1000);
    myservo1.write(100);
    flag1=0, flag2=0;
  }

  lcd.setCursor (0,0);
  lcd.print(slot);
  lcd.setCursor (0,1);
  lcd.print(slot2);
  lcd.print(Slot);

  lcd2.print(0,0,slot);
  lcd2.print(0,1,slot2);
  lcd2.print(15,1,Slot);

  // Blynk.virtualWrite(V0,slot);
  // Blynk.virtualWrite(V1,slot2);

}