#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int potentiometerPin = 13;
const int potentiometerPin2 = 2;
const int lampuPin = 13; // Sesuaikan dengan pin yang digunakan untuk mengontrol lampu

// Define constants for lamp conditions
const double on = 15;
const double off = 0;
const double hidup = 15;
const double mati = 0;

void setup() {
  Serial.begin(115200);
  lcd.begin(16, 2);
  lcd.init();
  lcd.backlight();

  pinMode(lampuPin, OUTPUT);
}

void loop() {
  Serial.println("========================================");

  // Variables for Automatic Light
  double mendung = 40;
  double cerah = 70;
  double potValue = analogRead(potentiometerPin);
  double x = map(potValue, 0, 4095, 0, 110);
  Serial.println("Lampu Otomatis: " + String(x, 0) + " °C");

double KondisiCuaca_Mendung;
  if (x >= cerah) {
    KondisiCuaca_Mendung = 0;
    Serial.println("μKondisiCuaca_Mendung [X]: " + String(KondisiCuaca_Mendung, 0));
  } else if (mendung < x && x < cerah) {
    KondisiCuaca_Mendung = (cerah - x) / (cerah - mendung);
    Serial.println("μKondisiCuaca_Mendung [X]: " + String(KondisiCuaca_Mendung, 4));
  } else if (x <= mendung) {
    KondisiCuaca_Mendung = 1;
    Serial.println("μKondisiCuaca_Mendung [X]: " + String(KondisiCuaca_Mendung, 0));
  }

  double KondisiCuaca_Cerah;
  if (x <= mendung) {
    KondisiCuaca_Cerah = 0;
    Serial.println("μKondisiCuaca_Cerah [X]: " + String(KondisiCuaca_Cerah, 0));
  } else if (x > mendung && x < cerah) {
    KondisiCuaca_Cerah = (x - mendung) / (cerah - mendung);
    Serial.println("μKondisiCuaca_Cerah [X]: " + String(KondisiCuaca_Cerah, 4));
  } else if (x >= cerah) {
    KondisiCuaca_Cerah = 1;
    Serial.println("μKondisiCuaca_Cerah [X]: " + String(KondisiCuaca_Cerah, 0));
  }

  // Variables for Distance Between the Barrier and the Train
  double rendah = 40;
  double tinggi = 80;
  double potValue2 = analogRead(potentiometerPin2);
  double y = map(potValue2, 0, 4095, 0, 120);
  Serial.println("\nIntensitas Cahaya: " + String(y, 0) + " %");

  double IntensitasCahaya_Rendah;
  if (y >= tinggi) {
    IntensitasCahaya_Rendah = 0;
    Serial.println("μIntensitasCahaya_Rendah [Y]: " + String(IntensitasCahaya_Rendah, 0));
  } else if (rendah < y && y < tinggi) {
    IntensitasCahaya_Rendah = (tinggi - y) / (tinggi - rendah);
    Serial.println("μIntensitasCahaya_Rendah [Y]: " + String(IntensitasCahaya_Rendah, 4));
  } else if (y <= rendah) {
    IntensitasCahaya_Rendah = 1;
    Serial.println("μIntensitasCahaya_Rendah [Y]: " + String(IntensitasCahaya_Rendah, 0));
  }

  double IntensitasCahaya_Tinggi;
  if (y <= rendah) {
    IntensitasCahaya_Tinggi = 0;
    Serial.println("μIntensitasCahaya_Tinggi [Y]: " + String(IntensitasCahaya_Tinggi, 0));
  } else if (y > rendah && y < tinggi) {
    IntensitasCahaya_Tinggi = (y - rendah) / (tinggi - rendah);
    Serial.println("μIntensitasCahaya_Tinggi [Y]: " + String(IntensitasCahaya_Tinggi, 4));
  } else if (y >= tinggi) {
    IntensitasCahaya_Tinggi = 1;
    Serial.println("μIntensitasCahaya_Tinggi [Y]: " + String(IntensitasCahaya_Tinggi, 0));
  }

  // Variables for the Time Needed for the lights to turn off condition
  double sebentar = 5;
  double lama = 15;

  Serial.println("\n");
  // [R1] if weather conditions are cloudy AND light intensity is low THEN the light condition is bright
  double a1 = min(KondisiCuaca_Mendung, IntensitasCahaya_Rendah);
  Serial.println("a1: " + String(a1, 4));
  double Z1 = on - a1 * (on - off);
  Serial.println("z1: " + String(Z1, 4));

  // [R2] if weather conditions are cloudy AND light intensity is high THEN the light condition is off
  double a2 = min(KondisiCuaca_Mendung, IntensitasCahaya_Tinggi);
  Serial.println("a2: " + String(a2, 4));
  double Z2 = hidup - a2 * (hidup - mati);
  Serial.println("z2: " + String(Z2, 4));

  // [R3] if weather conditions are clear AND light intensity is low THEN the light condition is on
  double a3 = min(KondisiCuaca_Cerah, IntensitasCahaya_Rendah);
  Serial.println("a3: " + String(a3, 4));
  double Z3 = a3 * (hidup - mati) + mati;
  Serial.println("z3: " + String(Z3, 4));

  // [R4] if weather conditions are clear AND light intensity is high THEN the light condition is off
  double a4 = min(KondisiCuaca_Cerah, IntensitasCahaya_Tinggi);
  Serial.println("a4: " + String(a4, 4));
  double Z4 = a4 * (hidup - mati) + mati;
  Serial.println("z4: " + String(Z4, 4));

  Serial.println("\nResult");
  double z = (a1 * Z1 + a2 * Z2 + a3 * Z3 + a4 * Z4) /
             (a1 + a2 + a3 + a4);

  lcd.setCursor(0, 0);
  lcd.print("Kondisi Cuaca:");
  lcd.setCursor(0, 1);
  lcd.print(int(x));
  lcd.print(" °C/%");
  delay(1000);
  lcd.clear();

  lcd.setCursor(0, 0);
  lcd.print("Intensitas Cahaya:");
  lcd.setCursor(0, 1);
  lcd.print(int(y));
  lcd.print(" %");
  delay(1000);
  lcd.clear();

// Kontrol Lampu
if (z >= sebentar && z <= lama) {
    // Lampu Mati
    digitalWrite(lampuPin, LOW);
    lcd.setCursor(0, 0);
    lcd.print("Lampu Hidup");
    lcd.setCursor(0, 1);
    lcd.print("Waktu: " + String(z, 4) + " menit");
    delay(int(z) * 1000);  // Convert menit ke milidetik dan tunggu
    // Turn off the light after the specified time
    digitalWrite(lampuPin, LOW);
    lcd.clear();
} else {
    // Lampu Hidup
    digitalWrite(lampuPin, HIGH);
    lcd.setCursor(0, 0);
    lcd.print("Lampu Hidup");
    lcd.setCursor(0, 1);
    lcd.print("Waktu: " + String(z, 4) + " menit");
    delay(500);  // Tunggu 1 detik saat lampu mati
    lcd.clear();
}

}