#include <LiquidCrystal_I2C.h>
#include <TimeLib.h>

int lcdColumns = 16;
int lcdRows = 2;

LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);  

const int TimerButton = 2;
const int CounterButton = 4;
const int StopButton = 18; 

time_t t = now();

int TimerStart = 0;
int CurrentCounter;

void setup() {
  lcd.init();
  lcd.backlight();

  Serial.begin(115200);

  pinMode(TimerButton, INPUT);
  pinMode(StopButton, INPUT);
  setTime(00,55,00,24,7,14); //(Jam,Menit,Detik,Tanggal,Bulan,Tahun)

  Serial.println("Timer Counter ESP32");
  lcd.println("Timer Counter");
  lcd.setCursor(0,1);
  lcd.print(t);

  delay(1000);
}

void printLCDSerial(String Text, int pos = 1){
  Serial.println(Text);
  lcd.setCursor(0,pos);
  lcd.println(Text);
}

void loop() {
  lcd.clear();

  if(digitalRead(TimerButton) == HIGH){
    Counter();
  }
  if (digitalRead(StopButton) == HIGH){
    lcd.clear();
    while(1);
  }
  //if (digitalRead(StopButton) == HIGH){
  //  Timer();
  //}
}

void Counter(){
  for(int i=0;i<=9;i++){
    for(int j=0;j<=9;j++){
        lcd.setCursor(0,0);
        lcd.print("Counter Timer");
        printLCDSerial(String(TimerStart),1);
        TimerStart++;
        CurrentCounter = TimerStart;
        delay(1000);
    }
  }
}

void Timer(){
  for(int i=0;i<=9;i++){
    for(int j=0;j<=9;j++){
        lcd.setCursor(0,0);
        lcd.print("Timer");
        printLCDSerial(String(TimerStart),1);
        TimerStart++;
        delay(1000);
      }
    }
}

String TimerFormat(int TimerStart){
  int second = TimerStart / 60;
  int minute = second ;
  int hour;
  String StringTime = String(hour)+" : "+String(minute)+" : "+String(second);
  return StringTime;
  }

void Stop(){
  lcd.clear();
  printLCDSerial("Stop",0);
  printLCDSerial("Counter = "+CurrentCounter,0);
  while(true);
}