#define BLYNK_TEMPLATE_ID "TMPL6uc0KWDlR"
#define BLYNK_TEMPLATE_NAME "CAMP"
#define BLYNK_AUTH_TOKEN "wdo5sZ2H37hZ8KjSBsN4AiLsEHYJCn80"
#define BLYNK_PRINT Serial /
#include <WiFi.h>
#include <HTTPClient.h>
#include <DHT.h>
#include <BlynkSimpleEsp32.h>
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

const char* token = "cfp0uNoRffA7IkFABKljTju7hzRTiFDrVMUkiUQqLTW"; //Line token form https://notify-bot.line.me/th/

int pirPin = 18;
int ledPin = 22;
#define DHTPIN 4      // Pin connected to DHT22
#define DHTTYPE DHT22 // DHT sensor type

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  
  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);  
  delay(4000);
  dht.begin();
  delay(2000);
  Serial.println("Connected to WiFi");
  Serial.println(" READY ");
  
}

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");

   float temperature = dht.readTemperature(); // Gets the values of the temperature
   float humidity = dht.readHumidity(); // Gets the values of the humidity 


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

      String humid = String(humidity);
      http.POST("message=Humidity : "+humid+" %");

      String tempMessage = String(temperature);
      http.POST("message=Temperature : "+tempMessage+" °C");
      
      if (temperature > 35) {
        http.POST("message=แจ้งเตือนอุณหภูมิสูง🌡");
        Serial.println("High temperature message sent");

      }
      if (humidity > 50) {
        http.POST("message=แจ้งเตือนความชื้นสูง🌫");

         Serial.println("High 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(500); 
    
    if (WiFi.status() == WL_CONNECTED) {// Send a message and read sensor data every 15 Minute
    int pirValue = digitalRead(pirPin);

    if (pirValue == HIGH) 
      digitalWrite(ledPin, HIGH); // เปิด LED
      delay(1000);
      digitalWrite(ledPin, LOW);  // ปิด LED
      delay(1000);
      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;
  
}