#include <WiFi.h>
#include <PubSubClient.h>
#include <ArduinoJson.h>
#include "DHTesp.h"

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "broker.hivemq.com";
const char* topic = "julistio/data";

WiFiClient espClient;
PubSubClient client(espClient);
long randNumber;
StaticJsonDocument<256> doc;

const int DHT_PIN = 15;
DHTesp dhtSensor;

void setup_wifi() 
{
  Serial.println();
  Serial.print("Menghubungkan Ke ");
  Serial.println(ssid);

  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) 
  {
    delay(500);
    Serial.print(".");
  }  

  Serial.println("");
  Serial.println("WiFi Terhubung");
  Serial.println("Alamat IP: ");
  Serial.println(WiFi.localIP());
}

void reconnect() 
{
  while (!client.connected()) 
  {
    Serial.println("Mencoba Menghubungkan MQTT...");
    String clientId = "mqtt-explorer-a72035f0";
    clientId += String(random(0xffff), HEX);
    if (client.connect(clientId.c_str())) 
    {
      Serial.println("MQTT Terhubung");
    } 
    else 
    {
      Serial.print("Gagal, rc=");
      Serial.print(client.state());
      Serial.println(" Mencoba Kembali dalam 5 Detik");
      delay(5000);
    }
  }
}

void setup() 
{
  Serial.begin(115200);
  setup_wifi();
  client.setServer(mqtt_server, 1883);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() 
{
  if (!client.connected()) 
  {
    reconnect();
  }
  
  client.loop();

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  String temp = String(data.temperature, 2);
  Serial.print("Data1: ");
  Serial.println(temp);
  String hum = String(data.humidity, 1);
  Serial.print("Data2: ");
  Serial.println(hum);
  
  JsonArray datajson = doc.createNestedArray("Data Suhu & Kelembaban");
  datajson.add(temp);
  datajson.add(hum);
  char out[128];
  int b =serializeJson(doc, out);
  boolean dataout= client.publish(topic, out);
  
  Serial.println("Data Terkirim");
  delay(2000);
}