led-clock-arduino/AlarmSystem.cpp at main · a9na/led-clock-arduino · GitHub

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#include "AlarmSystem.h"
#include <EEPROM.h>
#include <Arduino.h>

#define EEPROM_ALARM_HOUR_ADDR 0
#define EEPROM_ALARM_MIN_ADDR 1
#define EEPROM_ALARM_ENABLED_ADDR 2

void AlarmSystem::begin() {
  loadFromEEPROM();
  hasRungToday = false;
}

void AlarmSystem::setAlarm(int hour, int minute) {
  alarmHour = hour;
  alarmMinute = minute;
  alarmEnabled = true;
  saveToEEPROM();
}

void AlarmSystem::disableAlarm() {
  alarmEnabled = false;
  saveToEEPROM();
}

bool AlarmSystem::isAlarmSet() {
  return alarmEnabled;
}

void AlarmSystem::check(int hour, int minute, int second) {
  if (!alarmEnabled) return;

  if (hour == alarmHour && minute == alarmMinute && second == 0 && !hasRungToday) {
    triggerAlarm();
    hasRungToday = true;
  }

  resetDailyFlag(hour);
}

void AlarmSystem::triggerAlarm() {
  for (int i = 0; i < 10; i++) {
    digitalWrite(13, HIGH);
    delay(250);
    digitalWrite(13, LOW);
    delay(250);
  }
}

void AlarmSystem::resetDailyFlag(int currentHour) {
  if (currentHour != alarmHour) {
    hasRungToday = false;
  }
}

void AlarmSystem::loadFromEEPROM() {
  alarmHour = EEPROM.read(EEPROM_ALARM_HOUR_ADDR);
  alarmMinute = EEPROM.read(EEPROM_ALARM_MIN_ADDR);
  alarmEnabled = EEPROM.read(EEPROM_ALARM_ENABLED_ADDR);
}

void AlarmSystem::saveToEEPROM() {
  EEPROM.write(EEPROM_ALARM_HOUR_ADDR, alarmHour);
  EEPROM.write(EEPROM_ALARM_MIN_ADDR, alarmMinute);
  EEPROM.write(EEPROM_ALARM_ENABLED_ADDR, alarmEnabled);
}