//----------------LIBRARIES----------------
    #include "WiFi.h"
    #include "HTTPClient.h"
    #include "LiquidCrystal_I2C.h" 
//-----------------------------------------

//Sesuaikan dengan addres i2c dan ukuran LCD yg digunakan
LiquidCrystal_I2C lcd(0x27, 16, 2);

const char* ssid = "Wokwi-GUEST"; //Silakan isi dengan nama SSID
const char* password = ""; //Siakan isi dengan password

// Buat object http
 HTTPClient http;

//sesuaikan dgn ip dan direktori penyimpanan file php anda
String url = "http://ea20-125-162-211-97.ngrok-free.app/getdata.php?";
String payload;
String kondisi = "Aman";

#define sensorPin   16  // Sensor Getar
#define alarmPin   19  // Alarm

void setup () {

    Serial.begin(115200);
    WiFi.begin(ssid, password);
    lcd.init();  
    lcd.backlight();

    pinMode (sensorPin, INPUT);
    pinMode (alarmPin, OUTPUT);
    
      
    while (WiFi.status() != WL_CONNECTED) {
        Serial.println("Connecting...");
        lcd.clear();
        lcd.print("Connecting");
        for(int x = 0; x<16; x++){
        lcd.setCursor(x, 1);
        lcd.print(".");
        delay(100);
        }
      }
  
 if(WiFi.status() == WL_CONNECTED) {
    Serial.println("Connected...!!!");
    lcd.clear();
    lcd.print("Connected...!!!");
    delay(1000);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("DETEKTOR GEMPA");
    lcd.setCursor(0, 1);
    lcd.print("Kondisi: ");
    lcd.print(kondisi);
 }

}

void Display(String stat){
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("DETEKTOR GEMPA");
    lcd.setCursor(0, 1);
    lcd.print("Kondisi: ");
    lcd.print(stat);
}

void buzzer(){
  for(int i=0; i<=5; i++){
    digitalWrite(alarmPin, HIGH);
    delay(500);
    digitalWrite(alarmPin, LOW);
    delay(500);
  }
}


   


void loop() {

float magnitudo = random(1, 9);

 Display(kondisi);
 delay(1000);
 
 int sensorValue = digitalRead(sensorPin);
 if(sensorValue == LOW){
   kondisi = "Aman";
   return;
 }
    
    kondisi = "GEMPA!!!";
    Display(kondisi);
    buzzer();
  
  if (WiFi.status() == WL_CONNECTED) {

    http.begin(url + "magnitudo=" + String(magnitudo));
    int httpCode = http.GET();
    Serial.print("Kode Response HTTP: ");
    Serial.println(httpCode);

    if (httpCode == 200) {
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("Data terkirim ke server");
      lcd.setCursor(0,1);
      lcd.print("ke server!!!");
      delay(2000);
      Display(kondisi);   
    }
    else{
      Serial.print("Error Message: ");
      Serial.println(http.errorToString(httpCode));
      Serial.println("");
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Koneksi ke Server");
      lcd.setCursor(0, 1);
      lcd.print("Gagal!!!");
      delay(2000);
      lcd.clear();
      lcd.print(http.errorToString(httpCode));
      delay(3000);
      Display(kondisi);
    }

    http.end();

  }
  else {
    Serial.println("Internet Disconnected!!!");
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Cek Koneksi");
    lcd.setCursor(0, 1);
    lcd.print("Internet !!!");
    delay(2000);
    Display(kondisi);
  }
 delay(100);
}