#define BLYNK_TEMPLATE_ID "TMPL6oVwCJN4q"
#define BLYNK_TEMPLATE_NAME "YUSUF IOT HAMA"
#define BLYNK_AUTH_TOKEN "fu6mioROwG2TMiBr5Qf2CKZo2yEaDqdL"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <Ultrasonic.h>
#include <HTTPClient.h>

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

const char* TELEGRAM_BOT_TOKEN = "7065921505:AAFqwwQgmna4T4PG1jxaFiKLnFSRt6PC-5E";
const char* TELEGRAM_CHAT_ID = "6713094186";
Ultrasonic ultrasonic(25, 26);
int BUZZER_PIN = 19; 
int LED_PIN = 16; 
int switchState = 0;


BLYNK_WRITE(V1) {
  switchState = param.asInt();
}

void sendTelegramNotification(const String& message) {
  HTTPClient http;
  String endpoint = "https://api.telegram.org/bot" + String(TELEGRAM_BOT_TOKEN) + "/sendMessage";
  String payload = "chat_id=" + String(TELEGRAM_CHAT_ID) + "&text=" + message; 
  
  http.begin(endpoint);
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");
  int httpCode = http.POST(payload); 
  
  if (httpCode > 0) {
    Serial.println("Notifikasi dikirim.");
  } else {
    Serial.println("Gagal mengirim notifikasi: " + String(httpCode));
  }

  http.end();
}


void sendSensor() {
  double distance = ultrasonic.read();
  Blynk.virtualWrite(V0, distance);

  if (distance <= 200) { 
    if (switchState == 1) { 
      tone(BUZZER_PIN, 1000); 
      digitalWrite(LED_PIN, HIGH);
      Blynk.virtualWrite(V2, 1); 
      sendTelegramNotification("YUSUF ADA HAMA DARI JARAK 2 METER");
      Serial.println("Ada Hama Sufff!");
    } else {
      noTone(BUZZER_PIN); 
      Blynk.virtualWrite(V2, 0);
      digitalWrite(LED_PIN, LOW); 
      Serial.println("MATIKAN NOTIFIKASI");
    }
  } else {
    noTone(BUZZER_PIN); 
    digitalWrite(LED_PIN, LOW); 
    Blynk.virtualWrite(V2, 0);
    Serial.println("TIDAK ADA HAMA");
  }
}



void setup() {
Serial.begin(115200);

  pinMode(BUZZER_PIN, OUTPUT);
  pinMode(LED_PIN, OUTPUT);

  
  ledcSetup(0, 1000, 8); 
  ledcAttachPin(BUZZER_PIN, 0); 

  
  ledcWrite(0, 0); 
  digitalWrite(LED_PIN, LOW);

  Blynk.begin(auth,ssid,pass);
}

void loop() {
  sendSensor();
  Blynk.run();
}