#include <WiFi.h>
#include <HTTPClient.h>
#define LED_PIN 2
#define PIR_PIN 15

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* LINE_TOKEN = "SnLUULkG1PxvNpR6rSLJoqUY3aIFlT9x2TRfeNLU29Z";
int pirState = LOW;

void setup() 
  {
  pinMode(LED_PIN, OUTPUT);
  pinMode(PIR_PIN, INPUT);
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() 
{
  int pirValue = digitalRead(PIR_PIN);  
  if (pirValue == HIGH && pirState == LOW) 
  {
    Serial.println("Motion detected!");
    digitalWrite(LED_PIN, HIGH);
    sendNotification("มีผู้บุกรุก ที่ห้องคอม บร.5 เฟรนด์");
    pirState = HIGH;
  } else if (pirValue == LOW && pirState == HIGH) 
  {
    Serial.println("Motion stopped.");
    digitalWrite(LED_PIN, LOW);
    pirState = LOW;
  }
  delay(500);
}
void sendNotification(String message) 
{
  if (WiFi.status() == WL_CONNECTED) 
  {
    HTTPClient https;
    String url = "https://notify-api.line.me/api/notify";
    https.begin(url);
    https.addHeader("Authorization", "Bearer " + String(LINE_TOKEN));
    https.addHeader("Content-Type", "application/x-www-form-urlencoded");
    int httpCode = https.POST("message=" + message);
    if (httpCode == HTTP_CODE_OK) 
    {
      Serial.println("Notification sent!");
    } else 
    {
      Serial.println("Error sending notification: " + String(httpCode));
    }
    https.end();
  }
}