#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPL6qr4vJ4KR"
#define BLYNK_TEMPLATE_NAME "mushroom farm"
#define BLYNK_AUTH_TOKEN "7sXFb5jAcbjgRqyTSHYRYR5ZGKYfFFDf"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <ESP32Servo.h>

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

LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);
Servo myservo;

const int lightSensorPin = 34;
const int ledPin1 = 25;       
const int ledPin2 = 26;
const int threshold1 = 2000;  
const int threshold2 = 2500;        

#define DHTPIN 2     
#define DHTTYPE DHT22  
#define RELAY 13  
#define SERVO_PIN 12  
#define minPulse 1000  
#define maxPulse 2000

int buttonPin = 4;
int buttonState = 0;

DHT dht(DHTPIN, DHTTYPE);

void setup()
{

LCD.init();
LCD.backlight();

Serial.begin(115200);
Blynk.begin(auth, ssid, pass);
pinMode(lightSensorPin, INPUT);
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(buttonPin, INPUT_PULLUP);
pinMode(RELAY, OUTPUT);
digitalWrite(RELAY, LOW);   

myservo.attach(SERVO_PIN, minPulse, maxPulse);

}

BLYNK_WRITE(V2) 
{
  if(param.asInt() == 1)
  {

    for (int i = 0; i < 5; i++) {
    digitalWrite(RELAY, HIGH);
    myservo.write(0); 
    delay(1000);  
    myservo.write(90); 
    delay(1000);  
    myservo.write(180); 
    delay(1000);
    myservo.write(90); 
    delay(1000);
    myservo.write(0);
    delay(1000); 
  }

  }else{
     digitalWrite(RELAY, LOW);  
        myservo.write(90);   
  }
}

void loop()
{
  int lightValue = analogRead(lightSensorPin);
  int rawValue = analogRead(lightSensorPin);
  int mappedValue = map(rawValue, 0, 4095, 100, 0);

  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
}

  buttonState = digitalRead(buttonPin);

 if (buttonState == LOW) {
    for (int i = 0; i < 5; i++) {  // วนลูป 5 รอบ
    digitalWrite(RELAY, HIGH); // เปิด Relay
    myservo.write(0); 
    delay(1000);  
    myservo.write(90); 
    delay(1000);  
    myservo.write(180); 
    delay(1000);
    myservo.write(90); 
    delay(1000);
    myservo.write(0);
    delay(1000); 
  }

  } else {
   digitalWrite(RELAY, LOW);  
        myservo.write(90);  
  }

Serial.print("Humidity: ");
Serial.print(humidity);
Serial.print(" %\t");
Serial.print("Temperature: ");
Serial.print(temperature);
Serial.println(" *C");
Serial.print("Mapped Light Value: ");
Serial.println(mappedValue);

if (temperature >= 27) { 
        digitalWrite(RELAY, HIGH);  
        myservo.write(0); 
        delay(1000);  
        myservo.write(90); 
        delay(1000);  
        myservo.write(180); 
        delay(1000);  
    } else {
        digitalWrite(RELAY, LOW);  
        myservo.write(90);  
    }

    if (humidity <= 60) { 
        digitalWrite(RELAY, HIGH);  
        myservo.write(0); 
        delay(1000);  
        myservo.write(90); 
        delay(1000);  
        myservo.write(180); 
        delay(1000);  
    } else {
        digitalWrite(RELAY, LOW);  
        myservo.write(90);  
    }


  if (lightValue > threshold1) {
    digitalWrite(ledPin1, HIGH);  
  } else {
    digitalWrite(ledPin1, LOW); 
  }

  if (lightValue > threshold2) {
    digitalWrite(ledPin2, HIGH); 
  } else {
    digitalWrite(ledPin2, LOW);
  }

  // Update the LCD display, delay, and run Blynk
  LCD.setCursor(0, 0);
  LCD.print("Humidity: ");
  LCD.print(humidity);
  LCD.print("%");
  LCD.setCursor(0, 1);
  LCD.print("Temper: ");
  LCD.print(temperature);
  LCD.print("*C");

  delay(4000);
  LCD.clear();
  delay(500);

  LCD.setCursor(6, 0);
  LCD.print("Light");
  LCD.setCursor(7, 1);
  LCD.print(mappedValue);
  LCD.print(" %");

  delay(1000);

  Blynk.run();
  Blynk.virtualWrite(V0, temperature);
  Blynk.virtualWrite(V1, humidity);
  Blynk.virtualWrite(V2, mappedValue);
}