#include <DHTesp.h>         // DHT for ESP32 library
#include <WiFi.h>           // WiFi control for ESP32
#include <ThingsBoard.h>    // ThingsBoard SDK
#include <TBPubSubClient.h>

#define WIFI_AP_NAME        "Wokwi-GUEST"
#define WIFI_PASSWORD       ""
#define TOKEN               "1il65hlggrag1mgsawjx"
#define THINGSBOARD_SERVER  "thingsboard.cloud"

#define SERIAL_DEBUG_BAUD    115200

WiFiClient espClient;

ThingsBoard tb(espClient);
int status = WL_IDLE_STATUS;

DHTesp dht;
#define DHT_PIN 15
int quant = 20;
int send_delay = 4000;
int send_passed = 0;

void setup() {
  Serial.begin(SERIAL_DEBUG_BAUD);
  WiFi.begin(WIFI_AP_NAME, WIFI_PASSWORD);
  InitWiFi();

  dht.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() {
  delay(quant);
  send_passed += quant;

  if (WiFi.status() != WL_CONNECTED) {
    reconnect();
    return;
  }

  if (!tb.connected()) {

    Serial.print("Connecting to: ");
    Serial.print(THINGSBOARD_SERVER);
    Serial.print(" with token ");
    Serial.println(TOKEN);
    if (!tb.connect(THINGSBOARD_SERVER, TOKEN)) {
      Serial.println("Failed to connect");
      return;
    }
  }

  if (send_passed > send_delay) {
    Serial.println("Sending data...");

    tb.sendTelemetryFloat("temperature", dht.getTemperature());
    tb.sendTelemetryFloat("humidity", dht.getHumidity());

//  }

    send_passed = 0;
  }

  tb.loop();
}

void InitWiFi()
{
  Serial.println("Connecting to AP ...");

  WiFi.begin(WIFI_AP_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("Connected to AP");
}

void reconnect() {

  status = WiFi.status();
  if ( status != WL_CONNECTED) {
    WiFi.begin(WIFI_AP_NAME, WIFI_PASSWORD);
    while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
    }
    Serial.println("Connected to AP");
  }
}