//Tiga parameter di bawah ini biasanya ada saat kita membuat template baru
#define BLYNK_TEMPLATE_ID "TMPL6IJ2Bo1s6"
#define BLYNK_TEMPLATE_NAME "Mentoring P6 Sensor"
#define BLYNK_AUTH_TOKEN "x6QntwBiJrfwswJHII-YfcwAj-mR4_Gt" 

#define BLYNK_PRINT Serial //Kita menggunakan Blynk serial

#include <WiFi.h> //Library WiFi
#include <WiFiClient.h> //Library WiFiClient
#include <BlynkSimpleEsp32.h> //Library BlynkESP32

char ssid[] = "Wokwi-GUEST"; //Nama WiFi yang digunakan
char pass[] = ""; //Password WiFi yang digunakan

BlynkTimer timer; //Untuk push data dibutuhkan blynk timer (untuk code push data dapat dilihat di blynk example)

//SENSOR DHT
#include <DHTesp.h> //Library untuk sensor DHT
const int DHT_PIN = 18; //Pin signal DHT
byte led = 5; //Pin LED adalah D5
DHTesp dhtSensor; //Buat objek bernama dhtSensor
float suhu, kelembaban, k, f; //Variabel suhu dan kelembaban

//Ultrasonik
const int trigPin = 25;
const int echoPin = 26;

//define sound speed in cm/uS
#define SOUND_SPEED 0.034
#define CM_TO_INCH 0.393701

long duration;
float distanceCm;
float distanceInch;

int led_state = 0;

int buttonPin = 4;
int buttonState = 0;

#define unPressed HIGH
#define pressed   LOW
boolean activationMode;
boolean last_activationMode;



void setup()
{
  Serial.begin(115200); //Menginisiasi serial monitor
  
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass); //Menginisiasi Blynk

  dhtSensor.setup(DHT_PIN, DHTesp::DHT22); //Mendefine dht sensor (DHT22 merupakan jenis DHT yang digunakan)
  timer.setInterval(1000L, myTimerEvent); //Mengirim data tiap satu detik

  pinMode(buttonPin, INPUT);
  pinMode(led, OUTPUT);

  pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
  pinMode(echoPin, INPUT); // Sets the echoPin as an Input


  
}

void SensorUltrasonik() 
{
  // Clears the trigPin
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  // Sets the trigPin on HIGH state for 10 micro seconds
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  // Reads the echoPin, returns the sound wave travel time in microseconds
  duration = pulseIn(echoPin, HIGH);
  
  // Calculate the distance
  distanceCm = duration * SOUND_SPEED/2;
  
  // Prints the distance in the Serial Monitor
  Serial.print("Distance (cm): ");
  Serial.println(distanceCm);
  
  delay(1000);

  Blynk.virtualWrite(V5, distanceCm); //Mengirim data jarak pin V5

}
bool GetToggleSwitchState() {
  // "static" makes variables persistant over function calls
  static bool toggleState     = false;
  static bool lastToggleState = false;

  static byte buttonStateOld = unPressed;
  static unsigned long buttonScanStarted  =  0;
  unsigned long buttonDebounceTime = 50;
  static unsigned long buttonDebounceTimer;

  byte buttonStateNew;

  if ( TimePeriodIsOver(buttonDebounceTimer, buttonDebounceTime) ) {
    // if more time than buttonDebounceTime has passed by
    // this means let pass by some time until
    // bouncing of the button is over
    buttonStateNew = digitalRead(buttonPin);

    if (buttonStateNew != buttonStateOld) {
      // if button-state has changed
      buttonStateOld = buttonStateNew;
      if (buttonStateNew == unPressed) {
        // if button is released
        toggleState = !toggleState; // toggle state-variable
      } // the attention-mark is the NOT operator
    }   // which simply inverts the boolean state
  }     // !true  = false   NOT true  is false
  //       !false = true    NOT false is true
  return toggleState;
}

boolean TimePeriodIsOver (unsigned long &startOfPeriod, unsigned long TimePeriod) {
  unsigned long currentMillis  = millis();
  if ( currentMillis - startOfPeriod >= TimePeriod ) {
    // more time than TimePeriod has elapsed since last time if-condition was true
    startOfPeriod = currentMillis; // a new period starts right here so set new starttime
    return true;
  }
  else return false;            // actual TimePeriod is NOT yet over
}

void myTimerEvent()
{
activationMode = GetToggleSwitchState(); // must be executed all the time

   if (activationMode != last_activationMode) {
    if(led_state == LOW){
      // turn LED on:
      Serial.println("lampu menyala");
      led_state = HIGH;
      digitalWrite(led, HIGH);
      Blynk.virtualWrite(V4, 1);
      
    }

    else {
    // turn LED off:
    Serial.println("lampu mati");
    led_state = LOW;
    digitalWrite(led, LOW);
    Blynk.virtualWrite(V4, 0);
    }
    last_activationMode = activationMode;
  } 
  Serial.println(led_state);
  TempAndHumidity data = dhtSensor.getTempAndHumidity(); //Inisiasi pengambilan data
  suhu = data.temperature; //Mendefinisikan variabel suhu
  kelembaban = data.humidity; //Mendefinisikan variabel kelembaban
  f = (9/5 * suhu) + 32;
  k = suhu + 273;
  Serial.println("Suhu (C): " + String(suhu, 1) + "C");
  Serial.println("Suhu (F): " + String(f, 1) + "F");
  Serial.println("Suhu (K): " + String(k, 1) + "K");
  Serial.println("Kelembaban: " + String(kelembaban, 1) + "%");
  Serial.println(suhu);



  //KODE UNTUK MENGIRIM NOTIFIKASI
    if (suhu > 35) //Jika suhu lebih dari 35,maka...
  {
    Serial.println("Suhu Naik");
    Blynk.logEvent("high_temp"); //...Blynk akan mengirimkan notifikasi ke Gmail, dgn event "suhu_naik"
  }

  delay(1000);
  SensorUltrasonik();
  Blynk.virtualWrite(V0, suhu); //Mengirim data suhu menurut pin V0 di Blynk
  Blynk.virtualWrite(V1, kelembaban); //Mengirim data kelembaban pin V1
  Blynk.virtualWrite(V2, f); //Mengirim data farenheit pin V2
  Blynk.virtualWrite(V3, k); //Mengirim data kelvin pin V3
}

BLYNK_WRITE(V4) //V4, sesuai dengan pin Blynk yang ingin dipakai
{
  led_state = param.asInt();
  Serial.print("V4 Switch value is: ");
  Serial.println(led_state);
  digitalWrite(led, led_state);
}



void loop()
{
  Blynk.run(); //Menjalankan Bylnk
  timer.run(); //Menjalankan timer
  
}