#define BLYNK_TEMPLATE_ID "TMPL5G25FqI7N"
#define BLYNK_TEMPLATE_NAME "Lumino-Blinds"
#define BLYNK_AUTH_TOKEN "_D9jCIW87qt82yJ2VhpHWDM6pAvXMvMt"

#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include<ESP32Servo.h>

//int ldr = 15; 
//int relay = D1;  //connect with lamp
int servoPin = 5;
//int motorDir = D4;
int led = 27;
int ledGreen = 14;

int ldrValue;
int selectMode = 0; //default auto mode

Servo servo;

#define LIGHT_SENSOR_PIN 15 


BlynkTimer timer;
WidgetLCD lcd(V5);   

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

BLYNK_CONNECTED ()
{
  Blynk.syncVirtual(V0); 
  Blynk.syncVirtual(V1);
  Blynk.syncVirtual(V2);
  Blynk.syncVirtual(V3);
  
}

void setup() {
  // put your setup code here, to run once:

  Serial.begin(9600);
  Blynk.begin(auth,ssid,pass);  

  pinMode(led, OUTPUT);
  
  pinMode(ledGreen, OUTPUT);

  servo.attach(servoPin, 500, 2400);

  
  timer.setInterval(5000L, readLDR);
  lcd.clear();
  lcd.print(0, 0, "Lumino-Blinds");
  lcd.print(0, 1, "Initializing...");
}

BLYNK_WRITE (V0) // mode selection
{
  selectMode = param.asInt();
  Serial.print("Mode selected: ");
  Serial.println(selectMode);

  if (selectMode == 0)  // auto mode 
  {
    Serial.println("Auto MODE IS ACTIVATED!");
    
    lcd.print(3,0, "             ");
    lcd.print(4,0, "AUTO MODE"); 
    lcd.print(4,1, "ACTIVATED");
  }
  else if (selectMode == 1)  // manual mode 
  {
    Serial.println("MANUAL MODE IS ACTIVATED!");
    lcd.print(3,0, "             ");
    lcd.print(3,0, "MANUAL MODE"); 
    lcd.print(4,1, "ACTIVATED");

   digitalWrite(led, LOW);
   digitalWrite(ledGreen, LOW);
   

  }
}
BLYNK_WRITE (V1)  // curtains open half
{
  int buttonState = param.asInt ();
  if (buttonState == 1)
  {
    Serial.println("Curtains open till half!");
    
    curtainClose();
    lcd.print(2,1, "              ");
    lcd.print(5,1, "Half open");
  }

  else if (buttonState == 0)
  {
    Serial.println("Close the curtains!");
    curtainStop();

    lcd.print(5,1, "Close curtains");
  }
}
BLYNK_WRITE (V2)  // lamp
{
  int buttonState = param.asInt ();
  if (buttonState == 1)
  {
    Serial.println("Living Room Lights is ON!");
    digitalWrite(led, HIGH);

    lcd.print(2,1, "              ");
    lcd.print(5,1, "LAMP ON");
  }

  else if (buttonState == 0)
  {
    Serial.println("Living Room Lights is OFF!");
    digitalWrite(led, LOW);

    lcd.print(5,1, "LAMP OFF");
  }
}

BLYNK_WRITE (V3) //curtain open
{
  int buttonState = param.asInt ();
  if (buttonState == 1)
  {
    Serial.println("Opening the curtain!");
    lcd.print(2,1, "               ");
    lcd.print(2,1, "CURTAIN OPEN");
    curtainOpen();
  }

  else if (buttonState == 0)
  {
    Serial.println("Stop opening the curtain!");

    lcd.print(2,1, "               ");
    lcd.print(2,1, "CURTAIN STOP");

    curtainStop();

  }
}

BLYNK_WRITE (V4) //bedroom lights
{
  int buttonState = param.asInt ();
  if (buttonState == 1)
  {
    digitalWrite(ledGreen, HIGH);
    Serial.println("Bedroom Lights on!");
    lcd.print(2,1, "               ");
    lcd.print(2,1, "bedroom lights on");
    
    //curtainClose();
  }

  else if (buttonState == 0)
  {
    digitalWrite(ledGreen, LOW);
    Serial.println("Bedroom lights off!");
    lcd.print(2,1, "               ");
    lcd.print(2,1, "Bedroom Light off");
    //curtainStop();
  }
}
void readLDR ()
{
 int analogValue = analogRead(LIGHT_SENSOR_PIN);

  Serial.print("Analog Value = ");
  Serial.print(analogValue);
  //ldrValue = analogRead(ldr);
  //Serial.print("LDR Value: ");
  //Serial.println(ldrValue);

  // Approximate LUX calculation (this will vary based on your specific LDR)
  // Here we use a simple conversion. A more accurate conversion requires specific calibration.
  //float voltage = ldrValue * (3.3 / 4095.0); // Assuming 3.3V reference and 12-bit ADC
  //int lux = (int)(500 / voltage); // Simple approximation, should be calibrated for your sensor

  //Serial.print("Approximate Lux: ");
  //Serial.println(lux);

  if (selectMode == 0) // Auto mode
  {
    
  if (ldrValue < 400)    // increase the value if the sensor is too sensitive
    {
        digitalWrite(led, HIGH);
        digitalWrite(ledGreen, HIGH);
        servo.write(180);
        Serial.println("It's dark, closing curtains and turning on lights.");
    }

    else 
    {
        digitalWrite(led, LOW);
        digitalWrite(ledGreen, LOW);
        servo.write(0);
        Serial.println("It's bright, opening curtains and turning off lights.");
    }
  }
}

void curtainOpen ()
{
    servo.write(180);
}

void curtainClose ()
{
    servo.write(70);
}

void curtainStop ()
{
    servo.write(0);
}

void loop() {
  Blynk.run();
  timer.run();
}