#if defined(ESP8266)
#include <ESP8266WiFi.h>
#elif defined(ESP32)
#include <WiFi.h>
#endif

#include "ThingsBoard.h"
#include "DHTesp.h"

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);

#define CURRENT_FIRMWARE_TITLE    "TEST"
#define CURRENT_FIRMWARE_VERSION  "1.0.0"

#define WIFI_SSID           "Wokwi-GUEST"
#define WIFI_PASSWORD       ""

// See https://thingsboard.io/docs/getting-started-guides/helloworld/
// to understand how to obtain an access token
#define TOKEN               "kUXAB9mODAlaxjNuJyfN"
#define THINGSBOARD_SERVER  "thingsboard.cloud"


// Baud rate for debug serial
#define SERIAL_DEBUG_BAUD   115200

//Mendefinisikan PIN (Pin yg digunakan pada ESP)
#define RELAY_OKS 18
#define LED_2 12
#define LED_3 14

/* Mendefinisikan Kadar Oksigen Acuan (keadaan nyata 4-10 ppm) */
#define OKS_NAIK  10 
#define OKS_TURUN  4

const int DHT_PIN = 15;

//Definisi Keadaan
int led_2 = 0;
int led_3 = 0;
float temperature = 0;
float humidity = 0;

DHTesp dhtSensor;

// Initialize ThingsBoard client
WiFiClient espClient;
// Initialize ThingsBoard instance
ThingsBoard tb(espClient);
// the Wifi radio's status
int status = WL_IDLE_STATUS;

void InitWiFi()
{
  Serial.println("Connecting to AP ...");
  // attempt to connect to WiFi network

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {

    delay(500);
    Serial.print(".");
  }
  Serial.println("Connected to AP");
}

void reconnect() {
  // Loop until we're reconnected
  status = WiFi.status();
  if ( status != WL_CONNECTED) {
    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
    while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
    }
    Serial.println("Connected to AP");
  }
}

void setup() {
  // initialize serial for debugging
  Serial.begin(SERIAL_DEBUG_BAUD);
  Serial.println();

  lcd.init();
  lcd.backlight();

  //PIN MODE (Pendefinisian PIN)
  pinMode(RELAY_OKS, OUTPUT);
  pinMode(LED_2, OUTPUT);
  pinMode(LED_3, OUTPUT);

  InitWiFi();
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() {

   //Logika Programnya 
   float oksigen = dhtSensor.getTemperature();;  // get temperature in Celsius

  if (isnan(oksigen)) {
    Serial.println("Failed to read from DHT sensor!");
  } else {
  if (oksigen > OKS_NAIK) {
      digitalWrite(RELAY_OKS, LOW); // Oksigen > 35 Suplay Oksigen Mati
      digitalWrite(LED_2, LOW); // Led Indikator Biru Off
      digitalWrite(LED_3, LOW); // Led Indikator Hijau Off
      lcd.setCursor(0, 1);
      lcd.print("oksigen: Lebih!   ");
    } else if (oksigen < OKS_TURUN) {
      digitalWrite(RELAY_OKS, HIGH); // Oksigen < 28 maka Suplai Hidup
      digitalWrite(LED_2, HIGH); // Led Indikator Biru On
      digitalWrite(LED_3, LOW); // Led Indikator Hijau Off
      lcd.setCursor(0, 1);
      lcd.print("Oksigen: Kurang!   ");
    } else if (oksigen <= 10) { //Kondisi dimana oksigen terpenuhi (4 s.d. 10 )
      digitalWrite(RELAY_OKS, LOW); // Suplay Oksigen Mati
      digitalWrite(LED_2, LOW); // Indikator Oksigen kurang Off
      digitalWrite(LED_3, HIGH); // Indikator Oksigen Tercukupi On
      lcd.setCursor(0, 1);
      lcd.print("Oksigen: Cukup   ");
    }
  }

  delay(1000);

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

  if (!tb.connected()) {
    // Connect to the ThingsBoard
    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;
    }
  }

  Serial.println("Sending data...");

  // Uploads new telemetry to ThingsBoard using MQTT.
  // See https://thingsboard.io/docs/reference/mqtt-api/#telemetry-upload-api
  // for more details

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  tb.sendTelemetryInt("temperature", data.temperature);
  tb.sendTelemetryFloat("humidity", data.humidity);
  Serial.print("Oksigen : ");
  Serial.println(data.temperature);
  /*Serial.print(" Kelembaban : ");
  Serial.println(data.humidity);*/

  lcd.setCursor(0, 0);
  lcd.print("Oksigen:");
  lcd.setCursor(8, 0);
  lcd.print(data.temperature);
  lcd.print("    ");
  lcd.setCursor(13, 0);
  lcd.print("ppm");

  tb.loop();
}