#include <LiquidCrystal.h>
LiquidCrystal lcd(3, 4, 5, 6, 7, 8);

#include "Countimer.h"
Countimer timer;

#include <Button.h>

#include <EEPROM.h>

Button startStopBtn(16);
Button minutesBtn(17);
Button secondsBtn(18);

const int backlight = 9;
const int bell = 15;

int startHours = 0;
int startMinutes = 0;
int startSeconds = 0;

bool settingsMode = false;

int bellMillis = 0;
long bellStartMillis;


void setup() {

  startStopBtn.begin();
  minutesBtn.begin();
  secondsBtn.begin();

  pinMode(backlight, OUTPUT);
  pinMode(bell, OUTPUT);

  lcd.begin(16, 2);
  digitalWrite(backlight, HIGH);
  lcd.setCursor(0, 0);
  lcd.print(F("World's Loudest"));
  lcd.setCursor(1, 1);
  lcd.print(F("Kitchen Timer"));
  delay(3000);

  bellMillis = (EEPROM.read(0) * 10);
}

void onComplete() {
  //activate bell
  //reset or stop timer
  digitalWrite(bell, HIGH);
  delay(bellMillis);
  digitalWrite(bell, LOW);
}

void loop() {
  timer.run();

  if (timer.isCounterCompleted() == false && !timer.isStopped() == false) {//timer.isCounterRunning()
    if (settingsMode) {
      if(minutesBtn.pressed()) {
        bellMillis = bellMillis + 100;
      }

      if(secondsBtn.pressed()) {
        bellMillis = bellMillis + 10;
      }

      if(minutesBtn.pressed() && secondsBtn.pressed()) {
        bellMillis = 10;
      }
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print(F("Bell Time"));
      lcd.setCursor(0, 1);
      lcd.print(bellMillis);
      if(startStopBtn.pressed()) {
        //save bellMillis to EEPROM
        EEPROM.update(0, (bellMillis / 10));
        settingsMode = false;
      }
    } else {
      if (minutesBtn.pressed()) {
        startMinutes++;
      }

      if (secondsBtn.pressed()) {
        startSeconds++;
      }

      if (startMinutes > 60) {
        startMinutes = 0;
      }

      if (startSeconds >= 60) {
        startSeconds = 0;
      }

      if (minutesBtn.pressed() && secondsBtn.pressed()) {
        startHours = 0;
        startMinutes = 0;
        startSeconds = 0;
      }
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print(F("TIMER"));
      lcd.setCursor(0, 1);
      lcd.print(startHours);
      lcd.print(":");
      lcd.print(startMinutes);
      lcd.print(":");
      lcd.print(startSeconds);
      //if startStopBtn is held down, settingsMode = TRUE
      if (startStopBtn.pressed()) {
        timer.setCounter(startHours, startMinutes, startSeconds, timer.COUNT_DOWN, onComplete);
        timer.start();
      }
    }
  }
  if (!timer.isStopped()) {//timer.isCounterRunning()

    if (startStopBtn.pressed()){
      timer.pause();
    }

    if (minutesBtn.pressed() && secondsBtn.pressed()) {
      startHours = 0;
      startMinutes = 0;
      startSeconds = 0;
      timer.stop();
    }

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(F("Timing"));
    lcd.setCursor(0, 1);
    lcd.print(timer.getCurrentTime());
  }

}