#define BLYNK_TEMPLATE_ID "TMPL6X0dNyxfX"
#define BLYNK_TEMPLATE_NAME "Rain Amount"
#define BLYNK_AUTH_TOKEN "rGMdTMxqpfC2oJpTWNYrwN-bzBS1RFee"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

#define LIGHT_SENSOR_PIN 34 // ESP32 pin GIOP36 (ADC0)

//stepper pin
int directionPin = 2;
int stepPin = 4;
int numberOfSteps = 200; // full rotion = 200 steps
int millisbetweenSteps = 10; // milliseconds - or try 100 for slower steps
int n = 0;

char ssid[] = "Wokwi-GUEST"; //wifi user name
char pass[] = ""; //wifi password

void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass); 
  pinMode(directionPin, OUTPUT);
  pinMode(stepPin, OUTPUT);
}

void loop() {
  // reads the input on analog pin (value between 0 and 4095)
  int sunlight = analogRead(LIGHT_SENSOR_PIN);
  Blynk.virtualWrite(V0, sunlight); // sending sensor values to Blynk cloud

  Serial.print("Analog Value = ");
  Serial.print(sunlight);   // the raw analog reading

  // We'll have a few threshholds, qualitatively determined
  if (sunlight < 40) {
    Serial.println(" => Dark");
    openRoof();
  } else if (sunlight < 800) {
    Serial.println(" => Dim");
    openRoof();
  } else if (sunlight < 2000) {
    Serial.println(" => Light");
    openRoof();
  } else if (sunlight < 3200) {
    Serial.println(" => Bright");
    closeRoof();
  } else {
    Serial.println(" => Very bright");
    closeRoof();
  }

  delay(500);
}

void openRoof(){
  digitalWrite(directionPin, HIGH);
  if (n != 200){
      for(;n < numberOfSteps; n++) {
      digitalWrite(stepPin, HIGH);
      digitalWrite(stepPin, LOW);
      delay(millisbetweenSteps);
      
      }
    }
}

void closeRoof(){
  digitalWrite(directionPin, LOW);

  if(n != 0){
    for( ;n > 0; n--) {
    digitalWrite(stepPin, HIGH);
    digitalWrite(stepPin, LOW);
    delay(millisbetweenSteps);
    }

  }
}