#define BLYNK_TEMPLATE_ID "TMPL63HgQ79QU"
#define BLYNK_TEMPLATE_NAME "Esp"
#define BLYNK_AUTH_TOKEN "jAW4yTuw7kYvUMSGlAfh0d2SXNU8W9Zr"
#include <ESP32Servo.h>
#include <WiFi.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <BlynkSimpleEsp32.h>
char auth[] = BLYNK_AUTH_TOKEN;

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

Servo servo1;

#define ldrPin1 34 // LDR sensor pin for parking space 1
#define ldrPin2 35 // LDR sensor pin for parking space 2
#define ldrPin3 33 // LDR sensor pin for parking space 3
#define ldrPin4 32 // LDR sensor pin for parking space 4

#define servoPin 13 // Servo motor pin
#define ledPin 12 // LED pin


BLYNK_CONNECTED() {
  Blynk.syncVirtual(V1); 
  Blynk.syncVirtual(V2); 
  Blynk.syncVirtual(V3); 
  Blynk.syncVirtual(V4); 
}


Adafruit_SSD1306 oled(128, 64, &Wire, -1);
 // Address 0x27 for I2C
Servo myservo;
  boolean full = 0;


  BLYNK_WRITE(V4){
    int Val = param.asInt();
    Serial.print("V4:");
    Serial.print(Val);
  if(Val)
  {
  myservo.write(90);
  delay(1000);
  }


  else
  {
  myservo.write(0);
  delay(1000);
  }
}

void setup() {
  Serial.begin(9600);


  pinMode(ldrPin1, INPUT);
  pinMode(ldrPin2, INPUT);
  pinMode(ldrPin3, INPUT);
  pinMode(ldrPin4, INPUT);
  
  pinMode(ledPin, OUTPUT);
  myservo.attach(servoPin);

  // initialize OLED display with I2C address 0x3C
  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    while (1);
  }

  delay(2000);         // wait two seconds for initializing
  oled.clearDisplay(); // clear display

  oled.setTextSize(1);         // set text size
  oled.setTextColor(WHITE);    // set text color
  oled.setCursor(0, 2);       // set position to display (x,y)
  oled.println("Welcome to Smart Parking"); // set text
  oled.display();              // display on OLED

  delay(1000);
    Blynk.begin(auth, ssid, pass);


}

void loop() {
    Blynk.run();
  boolean EntanceIR = digitalRead(ldrPin1);
  boolean ExitIR = digitalRead(ldrPin2);
  boolean ldrValue1 = digitalRead(ldrPin3);
  boolean ldrValue2 = digitalRead(ldrPin4);
   Blynk.virtualWrite(V1, int(ldrValue1)); // Initial value for the slider
   Blynk.virtualWrite(V2, int(ldrValue2)); // Initial value for the slider

  //V2
 if (ldrValue1 && ldrValue2)
 {
 digitalWrite(ledPin, HIGH);
 full = 1;
 oled.println("Full! Please come again, Later");}

 else
 {digitalWrite(ledPin, LOW);
 full=0;
 oled.println("Empty! Enter and find your slot");
 }



if(EntanceIR && ExitIR)
{
       // Blynk.virtualWrite(V3, 0); //update button state

myservo.write(0);
}
else
{myservo.write(90);
//V3=1
     // Blynk.virtualWrite(v3, 1); //update button state

}

  // oled.clear();
  // oled.setCursor(0, 0);
  // oled.print("LDR1: ");
  // oled.print(ldrValue1);
  // oled.setCursor(0, 1);
  // oled.print("LDR2: ");
  // oled.print(ldrValue2);
  // oled.setCursor(0, 2);
  // oled.print("LDR3: ");
  // oled.print(ldrValue3);
  // oled.setCursor(0, 3);
  // oled.print("LDR4: ");
  // oled.print(ldrValue4);


oled.display();
  delay(1000);
  oled.clearDisplay();
  oled.setCursor(0,0);
  timer.run();
}