#define BLYNK_TEMPLATE_ID "TMPL66jMOriNy"
#define BLYNK_TEMPLATE_NAME "Project IoT Sederhana 2"
#define BLYNK_AUTH_TOKEN "i2jHR9ypD2J_X3sg6FGUf_J5hTiKoLfz"

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

// Blynk Auth Token
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// DHT Sensor settings
#define DHT_PIN 15
#define DHTTYPE DHT22
DHT dhtSensor(DHT_PIN, DHTTYPE);

// LCD settings
LiquidCrystal_I2C lcd(0x27, 16, 2);

// Relay and Buzzer settings
#define RELAY_PIN 2
#define BUZZER_PIN 4

// Fuzzy Logic Parameters
float temperature, humidity;
int fanStatus = 0, heatStatus = 0;

// Blynk timer
BlynkTimer timer;

// Fuzzy logic functions
float fuzzyTemperature(float temp) {
  if (temp <= 30.0) return 1.0;  // Very Cold (suhu lebih rendah dari 30°C)
  if (temp >= 32.0 && temp <= 34.0) return 0.5;  // Ideal (suhu antara 32°C hingga 34°C)
  if (temp >= 36.0) return 1.0;  // Too Hot (suhu lebih dari 36°C)
  return 0.0; // Default
}

float fuzzyHumidity(float hum) {
  if (hum <= 40.0) return 1.0; // Very Dry (kelembaban di bawah 40%)
  if (hum >= 50.0 && hum <= 60.0) return 0.5; // Ideal (kelembaban antara 50% hingga 60%)
  if (hum >= 70.0) return 1.0; // Too Wet (kelembaban di atas 70%)
  return 0.0; // Default
}


void bacaSensor() {
  temperature = dhtSensor.readTemperature();
  humidity = dhtSensor.readHumidity();

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

  // Print sensor data to Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" °C");
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");

  // Apply fuzzy logic
  float tempFuzzy = fuzzyTemperature(temperature);
  float humFuzzy = fuzzyHumidity(humidity);

  if (tempFuzzy == 1.0 || humFuzzy == 1.0) {
    digitalWrite(BUZZER_PIN, HIGH); // Activate buzzer
    tone(BUZZER_PIN, 1000);  // Buzzer frequency 1000 Hz
    heatStatus = 1; // Turn on heater relay
    fanStatus = 0;  // Turn off fan if applicable
    Blynk.virtualWrite(V4, "ALARM: Unsafe Condition!"); // Send alert to Blynk app
    Serial.println("ALARM: Unsafe conditions detected!");
  } else if (tempFuzzy == 0.5 && humFuzzy == 0.5) {
    heatStatus = 0; // Turn off heater
    fanStatus = 1;  // Turn on fan
    digitalWrite(BUZZER_PIN, LOW); // Turn off buzzer
    noTone(BUZZER_PIN);  // Stop buzzer sound
    Blynk.virtualWrite(V4, "Ideal Condition"); // Send ideal condition message to Blynk
    Serial.println("Conditions are ideal.");
  }

  // Update relay and devices
  digitalWrite(RELAY_PIN, heatStatus);
  
  // Display data on LCD
  lcd.setCursor(0, 0);
  lcd.print("Temp: " + String(temperature, 1) + "C ");
  lcd.setCursor(0, 1);
  lcd.print("Hum: " + String(humidity, 1) + "% ");
  
  // Send data to Blynk
  Blynk.virtualWrite(V3, temperature);
  Blynk.virtualWrite(V2, humidity);
}

void setup() {
  Serial.begin(115200);
  Serial.println("Egg Incubator System with Fuzzy Logic");

  lcd.init();
  lcd.backlight();

  pinMode(RELAY_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);

  digitalWrite(RELAY_PIN, LOW);
  digitalWrite(BUZZER_PIN, LOW);

  dhtSensor.begin();

  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  Blynk.begin(auth, ssid, pass);

  timer.setInterval(2000L, bacaSensor); // Call sensor reading function every 2 seconds
}

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