#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>

#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""
#define BOTtoken "7310413624:AAFDebyEkuLFzSSbHcJlbXqHCnQomFgOLN4" // diisi Token Bot (Dapat dari Telegram Botfather) WiFiClientSecure client; UniversalTelegramBot bot(BOTtoken, client);
#define DHTPIN 19 // Pin yang terhubung ke sensor DHT
#define DHTTYPE DHT22 // Jenis sensor yang Anda gunakan (DHT11/DHT22/DS18B20)

const int ledPin = 18;
bool ledState = LOW;

WiFiClientSecure client; 
UniversalTelegramBot bot(BOTtoken, client);

// Alamat I2C LCD
const int lcdAddress = 0x27; // Sesuaikan dengan alamat LCD I2C Anda

// Jumlah kolom dan baris pada LCD
const int lcdColumns = 16;
const int lcdRows = 2;

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(lcdAddress, lcdColumns, lcdRows);

//Checks for new messages every 1 second. 
int botRequestDelay = 1000; 
unsigned long lastTimeBotRan;

void handleNewMessages(int numNewMessages) { 
  Serial.println("handleNewMessages"); 
  Serial.println(String(numNewMessages)); 
  for (int i=0; i<numNewMessages; i++) { 
    String chat_id = String(bot.messages[i].chat_id); 
    String text = bot.messages[i].text; 
    String from_name = bot.messages[i].from_name; 
    if (from_name == "") from_name = "Guest"; 
    //Cek Pembacaan Sensor DHT11 
    if (text == "/statussuhu") { 
      int t = dht.readTemperature(); 
      String temp = "Suhu saat ini : "; 
      temp += int(t); 
      temp +=" *C\n"; 
      bot.sendMessage(chat_id,temp, ""); 
      } 
    if (text == "/statuskelembapan") { 
      int h = dht.readHumidity(); 
      String temp = "Kelembaban: ";
      temp += int(h); 
      temp += " %"; 
      bot.sendMessage(chat_id,temp, ""); 
    } 

        if (text == "/ledon") {
      bot.sendMessage(chat_id, "LED dinyalakan", "");
      ledState = HIGH;
      digitalWrite(ledPin, ledState);
    }
    
    if (text == "/ledoff") {
      bot.sendMessage(chat_id, "LED dimatikan", "");
      ledState = LOW;
      digitalWrite(ledPin, ledState);
    }
    
    if (text == "/statusLED") {
      if (digitalRead(ledPin)){
        bot.sendMessage(chat_id, "LED menyala", "");
      }
      else{
        bot.sendMessage(chat_id, "LED mati", "");
      }
    }

      //Cek Command untuk setiap aksi 
      if (text == "/start") { 
        String welcome = "Welcome " + from_name + ".\n"; 
        welcome += "/statussuhu : Status Suhu\n"; 
        welcome += "/statuskelembapan : Status Kelembapan\n"; 
        welcome += "Gunakan perintah berikut untuk LED.\n";
        welcome += "/ledon untuk menghidupkan LED\n";
        welcome += "/ledoff untuk mematikan LED\n";
        welcome += "/statusLED untuk mengetahui kondisi LED \n";     

        bot.sendMessage(chat_id, welcome, "Markdown"); 
    } 

  } 
}

void setup() {
  Serial.begin(115200);
  dht.begin();
    // Inisialisasi LCD
  lcd.init();

  // Hidupkan backlight (opsional)
  lcd.backlight();

    client.setInsecure();

  // Set WiFi to station mode and disconnect from an AP if it was Previously
  // connected
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  delay(500);

  // attempt to connect to Wifi network:
  Serial.print("Connecting Wifi: ");
  Serial.println(WIFI_SSID);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(500);
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
  
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, ledState);

}

void loop() {
  delay(2000);  // Tunggu 2 detik sebelum membaca suhu lagi

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

  lcd.setCursor(0, 0);             // Pindah ke baris kedua
  lcd.print("  ");                  // Menghapus nilai sebelumnya
  lcd.setCursor(0, 0);             // Kembali ke baris kedua
  lcd.print("Suhu: ");
  lcd.print(temperature);
  lcd.print("C");

  lcd.setCursor(0, 1);             // Pindah ke posisi ke-9 pada baris kedua
  lcd.print("  ");                  // Menghapus nilai sebelumnya
  lcd.setCursor(0, 1);             // Kembali ke posisi ke-9 pada baris kedua
  lcd.print("Lembab: ");
  lcd.print(humidity);
  lcd.print("%");

    if (millis() > lastTimeBotRan + botRequestDelay)  {
    int numNewMessages = bot.getUpdates(bot.last_message_received + 1);

    while(numNewMessages) {
      Serial.println("got response");
      handleNewMessages(numNewMessages);
      numNewMessages = bot.getUpdates(bot.last_message_received + 1);
    }

    lastTimeBotRan = millis();
  }

}