#include <WiFi.h>
#include <HttpClient.h>
#include <b64.h>

int led1 = 13;
int SW1 = 12;
int Buzz = 14;
int re = 27;




#define ssid      "OPPOA79"
#define password  "kittisak"
// สร้าง token https://notify-bot.line.me/th
#define token     "NngXc032DBX6oFWX5be8MXRalA8sc4H4F6gGUqGGlJv"
#define pirPin    15

int s1 = 16;

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password, 6);
  Serial.print("Connecting to WiFi.");
  while(WiFi.status() != WL_CONNECTED) {  // รอจนกว่าจะเชื่อมต่อ WiFi สำเร็จ
    delay(1000);
    Serial.print(".");
  }
  Serial.println("Connected to WiFi");
  sendLineNotify("Online");
  pinMode(pirPin, INPUT);
  pinMode(s1, INPUT);
  pinMode(SW1, INPUT);
  pinMode(led1, OUTPUT);
  pinMode(Buzz, OUTPUT);
  pinMode(re, OUTPUT);


}

void loop() {

delay(100);

  if(WiFi.status() == WL_CONNECTED) { // ตรวจสอบการเชื่อมต่อ WiFi
    int s = digitalRead(s1); // อ่านค่าจากเซ็นเซอร์ PIR


  if(digitalRead(SW1) == 0){
    digitalWrite(led1,1);
    digitalWrite(Buzz,1);
    digitalWrite(re,1);
    delay(1000);
    sendLineNotify("คิดถึงจัง "); // ส่งข้อความไปยังไลน์
  }
  
  else{
    digitalWrite(led1,0);
    digitalWrite(Buzz,0);
    digitalWrite(re,0);

  }

  }
}


void sendLineNotify(String message) { // ฟังก์ชันส่งข้อความ
  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();
  } 
  else {
    Serial.println("Error");
  }

  http.end();
}

String urlEncode(String value) { // ฟังก์ชันเข้ารหัสข้อความผ่าน URL
  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;
}
long microsecondsToCentimeters(long microseconds)
{
// The speed of sound is 340 m/s or 29 microseconds per centimeter.
// The ping travels out and back, so to find the distance of the
// object we take half of the distance travelled.
return microseconds / 29 / 2;
}