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


const int relay_pompa = 18;
const int soil_sensor = 34;


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

#define tb_server "thingsboard.cloud"
const int tb_port = 1883;
#define tb_token "KelompokUAS"

WiFiClient espClient;
PubSubClient client(espClient);


void callback(char* topic, byte* payload, unsigned int length);
void reconnect();

void setup()
{
  Serial.begin(115200);
  pinMode(relay_pompa, OUTPUT);
  pinMode(soil_sensor, OUTPUT);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Koneksi WiFi...");
  }
  Serial.println("Terhubung ke WiFi");

  client.setServer(tb_server, tb_port);
  client.setCallback(callback);

}

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

    client.loop();
    int16_t i = analogRead(soil_sensor);

    String msg = i < 2165 ? "WET" : i > 3135 ? "DRY" : "OK";

    if (!isnan(i)) {
        String telemetryData = "{\"value_sensor\":" + String(i) + ", \"moisture_status\":\"" + msg + "\"}";
        char attributes[telemetryData.length() + 1];
        telemetryData.toCharArray(attributes, telemetryData.length() + 1);
        client.publish("v1/devices/me/telemetry", attributes);
        Serial.println("Data terkirim: " + telemetryData);
    }

    if (i > 3135) {
        digitalWrite(relay_pompa, HIGH);
    } else {
        digitalWrite(relay_pompa, LOW);
    }

    delay(5000); // Kirim data setiap 5 detik
}

void callback(char* topic, byte* payload, unsigned int length) {
  // Tambahkan kode callback jika diperlukan
}

void reconnect() {
  while (!client.connected()) {
    Serial.print("Menghubungkan ke ThingsBoard...");
    if (client.connect("ESP32_Client", tb_token, "")) {
      Serial.println("Berhasil");
    } else {
      Serial.print("Gagal, status=");
      Serial.print(client.state());
      Serial.println(" Coba lagi dalam 5 detik");
      delay(5000);
    }
  }
}