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

const char* ssid = "Wokwi-GUEST";
const char* password = "";
// Replace with your Line Notify token (generated from the Line Notify website)
const char* LINE_TOKEN = "qkx6jOv1ht8oOAm1nOZMSyGVdrMTft9ugfJdmMNzo8j";

// Initialize DHT22 sensor
#define DHT_PIN 4
#define DHT_TYPE DHT22
DHT dht(DHT_PIN, DHT_TYPE);

void setup() 
{
   Serial.begin(115200);
  // Connect to Wi-Fi network
  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());
  // Initialize DHT22 sensor
  dht.begin();
}

void loop() {
  // Read temperature and humidity from DHT22 sensor
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  if (isnan(temperature) || isnan(humidity)) 
  {
    Serial.println("Failed to read temperature and humidity from DHT22 sensor.");
    return;
  }
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" °C, Humidity: ");
  Serial.print(humidity);
  Serial.println("%");
  // Send notification to Line Notify
  String message = "Temperature: " + String(temperature) + " °C, Humidity: " + String(humidity) + "%";
  sendNotification(message);
  delay(5000);
}

void sendNotification(String message) {
  if (WiFi.status() == WL_CONNECTED) {
    // Send message to Line Notify
    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();
  }
}