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


const char* token = "i5Jl53UeTS0kDqzELnYcHDC04bFNHrDo2NPZu4MlHVm"; //Tokeh Line ที่ต้องการให้แจ้งเตือน


int ledPin = 13;                // choose the pin for the LED
int inputPin = 2;               // choose the input pin (for PIR sensor)
int pirState = LOW;             // we start, assuming no motion detected
int val = 0;                    // variable for reading the pin status


#define DHTPIN 4      // Pin connected to DHT22
#define DHTTYPE DHT22 // DHT sensor type
DHT dht(DHTPIN, DHTTYPE);


void setup() {
  dht.begin();


  pinMode(ledPin, OUTPUT);      // declare LED as output
  pinMode(inputPin, INPUT);     // declare sensor as input
  Serial.begin(9600);
  Serial.print("Connecting to WiFi");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");
}


void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    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");


  val = digitalRead(inputPin);  // read input value
  if (val == HIGH) {            // check if the input is HIGH
    digitalWrite(ledPin, HIGH);  // turn LED ON
    if (pirState == LOW) {
      // we have just turned on
      http.POST("message=แจ้งเตือนผู้บุกรุก");
      Serial.println("ส่งข้อความ : แจ้งเตือนผู้บุกรุก!");
      Serial.println("==================================");
      // We only want to print on the output change, not state
      pirState = HIGH;
    }
  } else {
    digitalWrite(ledPin, LOW); // turn LED OFF
    if (pirState == HIGH) {
      // we have just turned of
      http.POST("message=เหตุการณ์ปกติ");
      Serial.println("ส่งข้อความ : เหตุการณ์ปกติ!");
      Serial.println("==================================");
      // We only want to print on the output change, not state
      pirState = LOW;
    }
  }


    float humidity = dht.readHumidity();
    float temperature = dht.readTemperature();


    if (isnan(humidity) || isnan(temperature)) {
      Serial.println("Failed to read from DHT sensor!");
    } else {
      Serial.print("ความชื้นสัมพัทธ์: ");
      Serial.print(humidity);
      Serial.print(" %\t");
      Serial.print("อุณหภูมิ: ");
      Serial.print(temperature);
      Serial.println(" °C");


      if (temperature > 40) {
        http.POST("message=อุณหภูมิ = "+String(temperature,2)+" C"+"\n🌡อุณหภูมิสูงมาก ระวังเกิดอาการ \nHeat Stroke");
        Serial.println("High temperature message sent");
      }


      if (humidity < 40) {
        http.POST("message= ความชื้นต่ำ ควรเปิดเครื่องกรองอากาศ 🌫");
        Serial.println("Low humidity message sent");
        Serial.println("==================================");
      }
    }


  int httpCode = http.POST("READY");  // Use an empty POST request to send only headers


    if (httpCode > 0) {
      String response = http.getString();
      //Serial.print("HTTP Response code: ");
      //Serial.println(httpCode);
      //Serial.print("Server response: ");
     // Serial.println(response);
    } else {
      Serial.println(".....");
    }


    http.end();


    delay(1000); // Send a message and read sensor data every 5 seconds
  }
}