#include <WiFi.h>
#include <HTTPClient.h>

const char* ssid ="Wokwi-GUEST";
const char* password ="";
const char* token ="knBnbuSUOJkuOGjgQsGK9X2fZUOlGWbu4CW2KjQcghV";

int pirPin = 13;
int ledPin = 2;

void setup() {
  Serial.begin(9600);

  WiFi.begin("Wokwi-GUEST","",6);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  Serial.println("Connected to WiFi");
  pinMode(pirPin, INPUT);
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);  // ให้ LED ปิดตอนเริ่มต้น
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    int pirValue = digitalRead(pirPin);

    if (pirValue == HIGH) {
      digitalWrite(ledPin, HIGH); // เปิด LED
      delay(1000);
      digitalWrite(ledPin, LOW);  // ปิด LED
      
      sendLineNotify("มีจดหมายใหม่"); // ส่งข้อความไปยัง LINE Notify
    }
  }
}

void sendLineNotify(String message) {
  HTTPClient http;

  http.begin("https://notify-api.line.me/api/notify");
  http.addHeader("Authorization", "Bearer " + String(token));
  http.addHeader("Content-Type", "application/x-www-form-urlencoded");

  String encodedMessage = "message=" + urlEncode(message);
  int httpCode = http.POST(encodedMessage);

  if (httpCode > 0) {
    String response = http.getString();
   // Serial.println(httpCode);
   // Serial.println(response);
  } else {
    Serial.println("....");
  }

  http.end();
}

String urlEncode(String value) {
  String encodedValue = "";
  char c;
  for (size_t i = 0; i < value.length(); i++) {
    c = value.charAt(i);
    if (isAlphaNumeric(c)) {
      encodedValue += c;
    } else {
      encodedValue += String('%');
      encodedValue += String(c, HEX);
    }
  }
  return encodedValue;
}