#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPLmM0vnKSy"
#define BLYNK_DEVICE_NAME "Moyo 8 smart Farm"
#define BLYNK_AUTH_TOKEN "3DELSU0_2RIIzf-yQhHeF5qVZK6ChD-C"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"
#include <ESP32Servo.h>

const int DHT_PIN = 15;
DHTesp dhtSensor;

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST"; // ssid & password wifi
char pass[] = "";

BlynkTimer timer;

#define RelayLampu 13
#define RelayHeater 12
#define RelaySpray 14

int SW_State=0; // menyimpan state blynk

const float GAMMA = 0.7;
const float RL10 = 50;

Servo myservo; //servo

void sendSensor()
{
  //DHT
  TempAndHumidity  data = dhtSensor.getTempAndHumidity(); // sensor dht22
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  if (data.temperature < 30){
    digitalWrite(RelayHeater, HIGH);
    Blynk.virtualWrite(V5,1);
    Serial.println("Heater On");
  } else if (data.temperature > 34){
    digitalWrite(RelayHeater, LOW);
    Blynk.virtualWrite(V5,0);
    Serial.println("Heater Off");
  }
  if (data.humidity < 75){
    digitalWrite(RelaySpray, HIGH);
    Serial.println("Spray On");
    Blynk.virtualWrite(V6,1);
    delay(1000);
    digitalWrite(RelaySpray, LOW);
    Blynk.virtualWrite(V6,0);
  } else if (data.humidity > 78){
    digitalWrite(RelaySpray, LOW);
    Serial.println("Spray Off");
    Blynk.virtualWrite(V6,0);
  }
  Blynk.virtualWrite(V0, data.temperature); //sensor to blynk
  Blynk.virtualWrite(V1, data.humidity);

  //LDR
  int analogValue = analogRead(33);
  float voltage = analogValue * 5/4095.0;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  if (lux >= 50){
    Serial.print("Status: ");
    Serial.println("Terang");
    digitalWrite(RelayLampu, LOW);
    Blynk.virtualWrite(V4,0);
  } else {
    Serial.print("Status: ");
    Serial.println("Gelap");
    digitalWrite(RelayLampu, HIGH);
    Blynk.virtualWrite(V4,1);
  }
  delay(100);
  Blynk.virtualWrite(V3, lux);
}

BLYNK_WRITE (V2) //membaca command dari blynk to esp32
{
  SW_State = param.asInt();
  if (SW_State == 1)
  {
    myservo.write(180);
    Serial.println("Pintu Terbuka");
  }
  else
  {
    myservo.write(90);
    Serial.println("Pintu Tertutup");
  }
}

void setup()
{
  pinMode(RelayLampu, OUTPUT);
  pinMode(RelayHeater, OUTPUT);
  pinMode(RelaySpray, OUTPUT);
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  timer.setInterval(1L, sendSensor);  
  myservo.attach(2);
}

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