// Library
#include <WiFi.h>
#include <ThingSpeak.h>

// Sensor Ultrasonik 
const int echo_PIN = 14;
const int triger_PIN = 12;
float Distance = 0;
float duration = 0;

// DHT
#include <DHT.h>
#define DHTPIN 5
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

// Konfigurasi WiFi
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";

// Konfigurasi ThingSpeak
const int myChannelNumber = 2591833;
const char* myApiKey = "BR6JUAENLGIQK54X";
const char* server = "api.thingspeak.com";

WiFiClient client;

void setup() {
  Serial.begin(115200);
  dht.begin();
  pinMode(triger_PIN, OUTPUT);
  pinMode(echo_PIN, INPUT);

  // Menghubungkan ke WiFi
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("(Disconnected)");
  }
  Serial.println("(Connected)");
  Serial.println("-----------------------");

  // ~
  WiFi.mode(WIFI_STA);

  // Inisialisasi ThingSpeak
  ThingSpeak.begin(client);
}

void loop() {
  // Membaca data dari sensor ultrasonik
  digitalWrite(triger_PIN,LOW);
  delayMicroseconds(10);
  digitalWrite(triger_PIN,HIGH);
  duration = pulseIn(echo_PIN,HIGH);
  Distance =( 0.017 * duration)/100;
  ThingSpeak.setField(3, Distance);

  // Membaca data dari DHT
  float Temp = dht.readTemperature();
  float Humidity = dht.readHumidity();
  ThingSpeak.setField(1, Temp);
  ThingSpeak.setField(2, Humidity);

  int x = ThingSpeak.writeFields(myChannelNumber, myApiKey);

  // Cetak ke serial monitor Wokwi
  Serial.println("Suhu       : " + String(Temp) + "°C");
  Serial.println("Kelembapan : " + String(Humidity) + "%");
  Serial.println("Jarak      : " + String(Distance) + "m");
  Serial.println("-----------------------");

  // Mengecek apakah data sudah berhasil terkirim ke ThingSpeak
  if (x == 200) {
    Serial.println("[Data berhasil dikirim]");
  } else {
    Serial.println("[ERROR!]");
  }
  Serial.println("-----------------------");

  delay(5000);
}