#include <WiFi.h>
#include <WiFiClientSecure.h>
#include "DHTesp.h"
#include <PubSubClient.h>
#include <Arduino_JSON.h>
  

const char ssid[] = "Wokwi-GUEST";
const char pass[] = "";

const char *mqttServer = "ze3c7493.ala.asia-southeast1.emqxsl.com";
const char *topic_aktuator = "monitoring/aktuator/led";
const char *topic_cahaya = "monitoring/sensor/cahaya";
const char *mqtt_username = "THRArkatama";
const char *mqtt_password = "THRArkatama";
int port = 8883;

int LDRValue;

unsigned long lastTime = 0;
unsigned long intervalTime = 1000;
int i = 0;

static const char *root_ca PROGMEM = R"EOF(
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
)EOF";

WiFiClientSecure espClient;
PubSubClient client(espClient);
DHTesp dht;

void setup() {
  Serial.begin(115200);
  wifi_init();
  mqtt_init();
  // dht_init();
}

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

}

void wifi_init() {
  Serial.print("Connecting to WiFi");
  WiFi.begin(ssid, pass, 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
}

void mqtt_init() {
  espClient.setCACert(root_ca);
  client.setServer(mqttServer, port);
  while (!client.connected()) {
    String client_id = "ldr-dht-1";
    client_id += String(WiFi.macAddress());
    Serial.printf("The client %s connects to the public MQTT broker\n", client_id.c_str());
    if (client.connect(client_id.c_str(), mqtt_username, mqtt_password)) {
      Serial.println("Public EMQX MQTT broker connected");
      client.subscribe(topic_cahaya);
    } else {
      Serial.print("failed with state ");
      Serial.print(client.state());
      delay(2000);
    }
  }
}
void send_data(){
  if (i==0){
    send_data_cahaya();
  } else if (i==1){
    send_kondisi_aktuator();
  }


}
void data_cahaya_read() {
  LDRValue = analogRead(34);  
  Serial.print("Nilai LDR: ");    
  Serial.println(LDRValue);
}
void send_data_cahaya() {
  if ((millis() - lastTime) > intervalTime) {
    if (!client.connected()) {
      mqtt_init();
    }
    data_cahaya_read();
    JSONVar dataObject;
    dataObject["LDR"] = LDRValue;

    String sData = JSON.stringify(dataObject);

    client.publish(topic_cahaya, sData.c_str());
    i++;
    lastTime = millis();
  }
}

void send_kondisi_aktuator() {
  if ((millis() - lastTime) > intervalTime) {
    if (!client.connected()) {
      mqtt_init();
    }
    JSONVar dataObject;
    data_cahaya_read();
    if (LDRValue > 800){
      dataObject["LED"] = 1;
    } else {
      dataObject["LED"] = 0;
    }
    String sData = JSON.stringify(dataObject);

    client.publish(topic_aktuator, sData.c_str());
    i=0;
    lastTime = millis();
  }
  }

// void dht_init() {
//   dht.setup(DHT_PIN, DHTesp::DHT22);
// }



//Bayu Sutra
//IoT-1