#include <WiFi.h>
#include <HTTPClient.h>
#include "DHT.h"
#include <LiquidCrystal_I2C.h>
#include <Arduino_JSON.h>

#define DHTPIN 12  
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

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

String serverName = "https://monitoring-suhu-dan-kele-699d6-default-rtdb.asia-southeast1.firebasedatabase.app/sensor.json";
String serverName2 = "https://monitoring-suhu-dan-kele-699d6-default-rtdb.asia-southeast1.firebasedatabase.app/actuator.json";

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(19,OUTPUT);
  dht.begin();
  LCD.init();
  LCD.backlight();
  WiFi.begin(ssid, password);
  Serial.println("Connecting");
  while(WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to WiFi network with IP Address: ");
  Serial.println(WiFi.localIP()); 
  Serial.println("Timer set to 5 seconds (timerDelay variable), it will take 5 seconds before publishing the first reading.");
}

void loop() {
  // put your main code here, to run repeatedly:
  String myjson;

  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  // Check if any reads failed and exit early (to try again).
  if (isnan(temperature) || isnan(humidity)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }
  LCD.setCursor(0, 0);
  LCD.print(temperature);
  LCD.setCursor(0, 1);
  LCD.print(humidity);

  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print(F("%  Temperature: "));
  Serial.print(temperature);
  Serial.println(F("°C "));

 
  //ini utk menulis ke firebase
  if(WiFi.status()== WL_CONNECTED)
  {
    HTTPClient http;
    http.begin(sensor.json);
    int httpResponseCode = http.PUT(myjson);
    if (httpResponseCode>0)
    {
      //Serial.print("HTTP Response code: ");
      //Serial.println(httpResponseCode);
      //String payload = http.getString();
      //Serial.println(payload);
    }
    else
    {
      //Serial.print("Error code: ");
      //Serial.println(httpResponseCode);
    }
    http.end();
  }
  else
  {
    //Serial.println("WiFi Disconnected");
  }

  // ini utk membaca dari thingspeak
  if(WiFi.status()== WL_CONNECTED)
  {
    HTTPClient http;
    String serverPath = serverName2;
    http.begin(serverPath.c_str());
    int httpResponseCode = http.GET();
    if (httpResponseCode>0)
    {
      String payload = http.getString();
      JSONVar myObject = JSON.parse(payload);
      if (JSON.typeof(myObject) == "undefined")
      {
        Serial.println("Parsing input failed!");
        return;
      }
      JSONVar keys = myObject.keys();
      JSONVar value = myObject[keys[4]];
      byte databuzzer = atoi(value);
      Serial.println(databuzzer);
      if(databuzzer==5)
      {
        tone(19,1000);
        Serial.println("bunyi");
      }
      else
      {
        noTone(19);
        Serial.println("off");
      }
    }
    else
    {
      Serial.print("Error code: ");
      Serial.println(httpResponseCode);
    }
    http.end();
  }
  else
  {
    Serial.println("WiFi Disconnected");
  }
  delay(2000);
}