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

#define sensor  4
#define buzzer  18

int sensorValue = 0;

#define WIFI_SSID "Yo"
#define WIFI_PASSWORD "yoooyooo1421"
// Telegram BOT Token (Get from Botfather)
#define BOT_TOKEN "5679528950:AAElTI1Gn0HFfiO8LvRb4Jg8Diq5dBMHgaM"
const unsigned long BOT_MTBS = 1000;
WiFiClientSecure secured_client;
UniversalTelegramBot bot(BOT_TOKEN, secured_client);
unsigned long bot_lasttime;
bool Start = false;

String text;
String chat_id;
String chat_id_1 = "-837596439";


void setup()
{
  Serial.begin(9600);
  pinMode(sensor, INPUT);
  pinMode(buzzer, OUTPUT);
  digitalWrite(buzzer,LOW);
  initWiFi_and_Time_For_Telegram();
  bot.sendMessage(chat_id_1, "Project ONLINE");
}

void loop() {
  sensorValue = digitalRead(sensor);//=0
  Serial.println(sensorValue);
  if(!sensorValue){
    bot.sendMessage(chat_id_1, "Fire Detected Alarm!!!!");
    Serial.println("Fire Detected Alarm!!!!");
    digitalWrite(buzzer,HIGH);
    delay(5000);
  }
  else{
    digitalWrite(buzzer,LOW);
  }
  delay(100);
}





void initWiFi_and_Time_For_Telegram() {
  Serial.println();
  Serial.print("Connecting to Wifi SSID ");
  Serial.print(WIFI_SSID);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  secured_client.setCACert(TELEGRAM_CERTIFICATE_ROOT); // Add root certificate for api.telegram.org
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");
    delay(500);
  }
  Serial.print("\nWiFi connected. IP address: ");
  Serial.println(WiFi.localIP());

  Serial.print("Retrieving time: ");
  configTime(0, 0, "pool.ntp.org"); // get UTC time via NTP
  time_t now = time(nullptr);
  while (now < 24 * 3600)
  {
    Serial.print(".");
    delay(100);
    now = time(nullptr);
  }
  Serial.println(now);

}