#include <Arduino.h>
#include <PubSubClient.h>
#include <WiFi.h>
#include "DHT.h"

const char* mqttServer    = "armadillo.rmq.cloudamqp.com";
const int mqttPort        = 1883;
const char* mqttUser      = "igmznfpx:igmznfpx";
const char* mqttPassword  = "n8FBBji7iK4EHu-InaqGkjsah0xjj_of";

WiFiClient espClient;
PubSubClient client(espClient);

const int ldr  =35;

#define DHTPIN 25
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

int stattopic,statlampu,statpintu;
int ldrVal = 0;
 
void setup() 
{
  Serial.begin(115200);
  dht.begin();

  pinMode(ldr, INPUT);

 
  WiFi.begin("Wokwi-GUEST", "", 6);
 
  while (WiFi.status() != WL_CONNECTED) 
  {
    delay(500);
    Serial.println("Connecting to WiFi..");
  }
  Serial.println("Connected to the WiFi network");
 
  client.setServer(mqttServer, mqttPort);
  client.setCallback(callback);
 
  while (!client.connected()) 
  {
    Serial.println("Connecting to MQTT...");
 
    if (client.connect("ESP8266Client", mqttUser, mqttPassword )) 
    {
      Serial.println("connected");  
    } else
     {
      Serial.print("failed with state ");
      Serial.print(client.state());
      delay(2000);
    }
  }
  stattopic = client.subscribe("el/suhu");
  stattopic = client.subscribe("el/kelembapan");
  stattopic = client.subscribe("el/ldr");
}

void callback(char* topic, byte* payload, unsigned int length) 
{
  Serial.print("Message arrived in topic: ");
  Serial.println(topic);
 
  Serial.print("Message:");
  for (int i = 0; i < length; i++) 
  {
    stattopic = (char)payload[i];
    Serial.print((char)payload[i]);
  }
  Serial.println();
  Serial.println("-----------------------");
}
 
void loop() 
{
  Serial.println(stattopic);
  ldrVal = map(analogRead(ldr), 0, 4095, 100, 0);
  float h = dht.readHumidity();
  float t = dht.readTemperature();

  client.publish("el/ldr", String(ldrVal).c_str());
  client.publish("el/suhu", String(t).c_str());
  client.publish("el/kelembapan", String(h).c_str());
  delay(1000);
  client.loop(); 
}