// proses include library
#include <DHTesp.h>
#include <WiFi.h>
#include <HTTPClient.h>

// deklarasi variable
#define DHTPIN 15
#define LDRPIN 2

const char* ssid = "Wokwi-GUEST";
const char* password = "";

// url endpoint data of device
const char* serverName = "https://platform.antares.id:8080/~/antares-cse/antares-id/LatihanAntares_Permana/sensor-suhu";

// inisiasi object sensor
DHTesp dht;

// inisiasi variable
unsigned long lastTime = 0;
unsigned long timerDelay = 5000;

void setup() {
  // inisiasi interface serial
  Serial.begin(115200);

  // inisiasi sensor DHT
  dht.setup(DHTPIN, DHTesp::DHT22);

  // Menentukan pin sensor LDR sebagai input
  pinMode(LDRPIN, INPUT);

  // inisiasi WiFi Client
  WiFi.begin(ssid, password);
  Serial.println("Connecting");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to WiFi network with IP Address: ");
  Serial.println(WiFi.localIP());
  Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading.");
}

void loop() {
  // rutin melakukan pengiriman data setiap waktu yang diset
  if ((millis() - lastTime) > timerDelay) {
    // Baca nilai digital dari pin LDR
    int ldrValue = digitalRead(LDRPIN);

    // baca suhu dan kelembapan dari sensor DHT22
    TempAndHumidity data = dht.getTempAndHumidity();

    // ekstrak data temperature
    float temp = data.temperature;

    // ekstrak data humidity
    float hum = data.humidity;

    // menampilkan data di serial
    Serial.print("Suhu: ");
    Serial.print(temp, 2);
    Serial.println("°C");

    Serial.print("Kelembaban: ");
    Serial.print(hum, 1);
    Serial.println("%");

    Serial.print("LDR: ");
    Serial.println(ldrValue);

    Serial.println("---");

    // waktu jeda sampling data
    // minimal 2 detik
    delay(5000);

    // mengecek koneksi wifi
    if (WiFi.status() == WL_CONNECTED) {
      WiFiClient client;
      HTTPClient http;

      // inisiasi komunikasi http
      http.begin(client, serverName);

      // inisiasi http header
      http.addHeader("X-M2M-Origin", "436d2f4387e63755:6b16fdc55123c588");
      http.addHeader("Content-Type", "application/json;ty=4");
      http.addHeader("Accept", "application/json");

      // inisiasi data yang dikirim di restful api
      String httpRequestData = "{\"m2m:cin\": { \"con\":\"{\\\"temp\\\":\\\"";
      httpRequestData += String(temp, 2);
      httpRequestData += "\\\",\\\"hum\\\":\\\"";
      httpRequestData += String(hum, 1);
      httpRequestData += "\\\",\\\"ldr\\\":\\\"";
      httpRequestData += String(ldrValue);
      httpRequestData += "\\\"}\"}}";

      // mengirimkan HTTP POST
 http.end();
    }
 else {
 Serial.println("WiFi Disconnected");
   }
 lastTime = millis();
  } 
 }