#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
#include <ArduinoJson.h>

#define BOT_TOKEN "7044080444:AAF8YOFlyI6GKLxwW3n7beel8G71fyL48Eg"
#define ledPin 14
#define ledPin2 12
bool ledState = LOW;
bool ledState2 = LOW;

const unsigned long BOT_MTBS = 1000; // mean time between scan messages
WiFiClientSecure secured_client;
UniversalTelegramBot bot(BOT_TOKEN, secured_client);

unsigned long bot_lasttime;          // last time messages' scan has been done
bool Start = false;

void handleNewMessages(int numNewMessages)
{
  Serial.println("handleNewMessages");
  Serial.println(String(numNewMessages));

  for (int i = 0; i < numNewMessages; i++)
  {
    String chat_id = 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";

    if (text == "/send_test_action")
    {
      bot.sendChatAction(chat_id, "typing");
      delay(4000);
      bot.sendMessage(chat_id, "Did you see the action message?");
    }

    if (text == "/start")
    {
      String welcome = "Welcome to Universal Arduino Telegram Bot library, " + from_name + ".\n";
      welcome += "This is Chat Action Bot example.\n\n";
      welcome += "/send_test_action : to send test chat action message\n"; 
      welcome += "/led_on : to Lamp On\n";
      welcome += "/led_off : to Lamp Off\n"; 
      welcome += "/led2_on : to Lamp On\n";
      welcome += "/led2_off : to Lamp Off\n"; 
      welcome += "/state : to check Lamp\n";
      bot.sendMessage(chat_id, welcome);
    }

    if (text == "/led_on") {
      bot.sendMessage(chat_id, "LED state set to ON", "");
      ledState = HIGH;
      digitalWrite(ledPin, ledState);
    }
    
    if (text == "/led_off") {
      bot.sendMessage(chat_id, "LED state set to OFF", "");
      ledState = LOW;
      digitalWrite(ledPin, ledState);
    }

     if (text == "/led2_on") {
      bot.sendMessage(chat_id, "LED state set to ON", "");
      ledState2 = HIGH;
      digitalWrite(ledPin2, ledState2);
    }
    
    if (text == "/led2_off") {
      bot.sendMessage(chat_id, "LED state set to OFF", "");
      ledState2 = LOW;
      digitalWrite(ledPin2, ledState2);
    }
    
    if (text == "/state") {
      if (digitalRead(ledPin)){
        bot.sendMessage(chat_id, "LED is ON", "");
      }
      else{
        bot.sendMessage(chat_id, "LED is OFF", "");
      }
    }
  }
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.begin("Wokwi-GUEST", "", 6);

  secured_client.setCACert(TELEGRAM_CERTIFICATE_ROOT); // Add root certificate for api.telegram.org

  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
  }
  pinMode(ledPin, OUTPUT);
  pinMode(ledPin2, OUTPUT);

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  if (millis() - bot_lasttime > BOT_MTBS)
  {
    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);
    }

    bot_lasttime = millis();
  }
}