/*
 * TimeAlarmExample.pde
 *
 * This example calls alarm functions at 8:30 am and at 5:45 pm (17:45)
 * and simulates turning lights on at night and off in the morning
 * A weekly timer is set for Saturdays at 8:30:30
 *
 * A timer is called every 15 seconds
 * Another timer is called once only after 10 seconds
 *
 * At startup the time is set to Jan 1 2011  8:29 am
 */

// Questions?  Ask them here:
// http://forum.arduino.cc/index.php?topic=66054.0

#include <TimeLib.h>
#include <TimeAlarms.h>

AlarmId OneTimeAlarmId;
AlarmId OneMinuteId;

void setup() {
  Serial.begin(115200);
  while (!Serial) ; // wait for Arduino Serial Monitor

  setTime(23,58,30,5,8,25); // set time to Saturday 8:29:00am Aug 5 2025

  // create the alarms, to trigger at specific times
  Alarm.alarmRepeat(0, 0, 0, BackupLog);  // Backup log file and perform reset at midnight.
	OneMinuteId = Alarm.timerRepeat(60, OneMinute);       // Update time.
	Alarm.timerRepeat(4, UpdateTimers);     // Update timers.
	Alarm.timerRepeat(300, HourlyTasks);			// Hourly tasks
	OneTimeAlarmId = Alarm.timerRepeat(20, DelayedAlarmHandler);
	Alarm.disable(OneTimeAlarmId);
}

void loop() {
  // digitalClockDisplay();
  Alarm.delay(0); // wait one second between clock display
  delay(10);
}

void OneMinute() {
	char text[50] = {};
	sprintf_P(text, PSTR("Internal time before correction: %02u:%02u:%02u"), hour(), minute(), second());
	Serial.println(text);
	setTime(hour(), minute(), second() + random(2, 100), day(), month(), year());
  // Alarm.delay(0);
  sprintf_P(text, PSTR("Internal time after correction: %02u:%02u:%02u"), hour(), minute(), second());
	Serial.println(text);
  // Alarm.write(OneMinuteId, 60);
  digitalClockDisplay();
}

void digitalClockDisplay() {
  // digital clock display of the time
  Serial.print(hour());
  printDigits(minute());
  printDigits(second());
  Serial.println();
}

void UpdateTimers() {
	Serial.println("Updating timers function - 4 sec.");
  digitalClockDisplay();
}

void HourlyTasks() {
	Serial.println("Hourly tasks function - 5min.");
  digitalClockDisplay();
}

void BackupLog() {
	Serial.println("Backup log function - at midnight.");
  digitalClockDisplay();
	}

void DelayedAlarmHandler() {
	Serial.println("Delayed alarm handler - 20sec.");
  digitalClockDisplay();
}

void printDigits(int digits) {
  Serial.print(":");
  if (digits < 10)
    Serial.print('0');
  Serial.print(digits);
}