#include <Wire.h>


#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4); // Address 0x27, 16 columns and 4 rows


String input = "";
int rpm = 0;
unsigned long int  waktu = 0;
byte state = 0;



#define BUTTON_UP 19
#define BUTTON_DOWN 18
#define BUTTON_OK 5
#define BUTTON_RESET 4


double suhu, lembap;
int detik = 0, setDetik = 0, set_rpm = 0, set_time = 0, lamaTekanUp = 0, lamaTekanDown = 0, detikSuhu = 0, stateSuhu = 1, detikSuhuHidup = 0, value = 0, stateValue = 0;
long millisSebelum = 0, millisSekarang = 0, millisSebelumSuhu = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  
  pinMode(BUTTON_UP, INPUT_PULLUP);
  pinMode(BUTTON_DOWN, INPUT_PULLUP);
  pinMode(BUTTON_OK, INPUT_PULLUP);
  pinMode(BUTTON_RESET, INPUT_PULLUP);

  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("INPUT VALUE TEST");
  delay(2000);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("SET VALUE");
  lcd.setCursor(0, 1);
  lcd.print("RPM   : ");
  lcd.setCursor(13, 1);
  lcd.print(" rpm");

  lcd.setCursor(0, 2);
  lcd.print("Waktu : ");
  lcd.setCursor(13, 2);
  lcd.print(" min");

  lcd.setCursor(0,3);
  lcd.print("#:OK");
  
  lcd.setCursor(15,3);
  lcd.print("D:DEL");  

}

void loop() {

   counters();
  // rpm = inputValue("RPM  ", 0, 1);
  // waktu = inputValue("Waktu", 0, 2);

  // lcd.setCursor(0, 1);
  // lcd.print(String("RPM   : ") + rpm);
  // lcd.setCursor(0, 2);
  // lcd.print(String("Waktu : " + waktu));
  // lcd.setCursor(0, 0);
  // lcd.print("RUNNING        ");
  // Serial.println(String("RPM : ") + rpm);  
  // Serial.println(String("Waktu : ") + waktu);
}


// int inputValue(String variabelName, int positionX, int positionY) {
//   state = 0;
//   input = "";
//   do{
//     lcd.setCursor(19, positionY);
//     lcd.print("<");
//     char key = keypad.waitForKey();
//     if (key != NO_KEY){
//       if(key == 'D' && input.length() != 0){
//         input.remove(input.length()-1);
//         int eraserPosition = 8+input.length();
//         lcd.setCursor(eraserPosition,positionY);
//         lcd.print(" ");
//       }else if (key =='#'){
//         state = 1;
//       }else if (key != 'A' && key != 'B' && key != 'C' && key != 'D' && key != '#' && key != '*' ) {
//         input += key;
//       }

//       lcd.setCursor(positionX, positionY);
//       lcd.print(variabelName+ String(" : "));
//       lcd.setCursor(8, positionY);
//       lcd.print(input);
//       Serial.println(variabelName+ String(" : ")+input);
//     }
//   }while(state == 0);

  
//   lcd.setCursor(19, positionY);
//   lcd.print(" ");
//   return input.toInt();
// }


int counters(){
  while(digitalRead(BUTTON_OK == 1)){
     if (digitalRead(BUTTON_UP) == 0) {
    millisSekarang = millis();

    if (millisSekarang - millisSebelum > 1000 && lamaTekanUp < 3 && value >= 0) {
      lamaTekanUp += 1;
      value += 1;
      detik += 1;
      millisSebelum = millisSekarang;
    }

    if (millisSekarang - millisSebelum > 100 && (lamaTekanUp >= 3 && lamaTekanUp < 10) && value >= 0) {
      lamaTekanUp += 1;
      detik += 1;
      millisSebelum = millisSekarang;
    }

    if (millisSekarang - millisSebelum > 10 && lamaTekanUp >= 10 && value >= 0) {
      lamaTekanUp += 1;
      value +=1;
      detik += 1;
      millisSebelum = millisSekarang;
    }
    //setDetik = 0;
  }

  if (digitalRead(BUTTON_DOWN) == 0) {
    millisSekarang = millis();
    if(value >= 0){
      
    }
    if (millisSekarang - millisSebelum > 1000 && lamaTekanDown < 3 && value > 0) {
      lamaTekanDown += 1;
      value -=1;
      detik -= 1;
      millisSebelum = millisSekarang;
    }

    if (millisSekarang - millisSebelum > 100 && (lamaTekanDown >= 3 && lamaTekanDown < 10) && value > 0) {
      lamaTekanDown += 1;
      value -= 1;
      detik -= 1;
      millisSebelum = millisSekarang;
    }

    if (millisSekarang - millisSebelum > 10 && lamaTekanDown >= 10 && value > 0) {
      lamaTekanDown += 1;
      value -= 1;
      detik -= 1;
      millisSebelum = millisSekarang;
    }
    //setDetik = 0;
  }

  if (digitalRead(BUTTON_UP) == 1) {
    lamaTekanUp = 0;
  }
  if (digitalRead(BUTTON_DOWN) == 1) {
    lamaTekanDown = 0;
  }

  Serial.println(String("Value") + value);
  }

  Serial.println(value + 1);
  return value;
}

void counter(){
    if (digitalRead(BUTTON_UP) == 0) {
    millisSekarang = millis();

    if (millisSekarang - millisSebelum > 1000 && lamaTekanUp < 3 && value >= 0) {
      lamaTekanUp += 1;
      value += 1;
      detik += 1;
      millisSebelum = millisSekarang;
    }

    if (millisSekarang - millisSebelum > 100 && (lamaTekanUp >= 3 && lamaTekanUp < 10) && value >= 0) {
      lamaTekanUp += 1;
      detik += 1;
      millisSebelum = millisSekarang;
    }

    if (millisSekarang - millisSebelum > 10 && lamaTekanUp >= 10 && value >= 0) {
      lamaTekanUp += 1;
      value +=1;
      detik += 1;
      millisSebelum = millisSekarang;
    }
    //setDetik = 0;
  }

  if (digitalRead(BUTTON_DOWN) == 0) {
    millisSekarang = millis();
    if(value >= 0){
      
    }
    if (millisSekarang - millisSebelum > 1000 && lamaTekanDown < 3 && value > 0) {
      lamaTekanDown += 1;
      value -=1;
      detik -= 1;
      millisSebelum = millisSekarang;
    }

    if (millisSekarang - millisSebelum > 100 && (lamaTekanDown >= 3 && lamaTekanDown < 10) && value > 0) {
      lamaTekanDown += 1;
      value -= 1;
      detik -= 1;
      millisSebelum = millisSekarang;
    }

    if (millisSekarang - millisSebelum > 10 && lamaTekanDown >= 10 && value > 0) {
      lamaTekanDown += 1;
      value -= 1;
      detik -= 1;
      millisSebelum = millisSekarang;
    }
    //setDetik = 0;
  }

  if (digitalRead(BUTTON_UP) == 1) {
    lamaTekanUp = 0;
  }
  if (digitalRead(BUTTON_DOWN) == 1) {
    lamaTekanDown = 0;
  }

  // if(digitalRead(BUTTON_RESET) ==0) {
  //   resetFunc();
  // }

  // if (digitalRead(BUTTON_OK) == 0) {
    
    
  //   switch(stateValue){
  //     case 0:
  //       setSuhu = value;
  //       stateValue = 1;
  //       break;
  //     case 1:
  //       setKelembapan = value;
  //       stateValue = 2;
  //       break; 
  //   }
  //   lcd.clear();

  //   lcd.setCursor(6, 1);
  //   lcd.print((String)"T:" + setSuhu + "  " );
  //   lcd.setCursor(11, 1);
  //   lcd.print((String)"K:" + setKelembapan + "  " );
    
    
  //   delay(2000);
  //   value = 0;
  //   detik = 0;
  // }
}