#ifndef __BTC_TIMERS_H__
#define __BTC_TIMERS_H__

#include "BTCDateTime.h"
#include "BTCConfig.h"


class CClock {
  // allow use of ONE of the RTClib supported RTC chips
  // reference to the selected rtc stored here
#if RTC_USE_DS3231 == 1
  RTC_DS3231& _rtc;
#elif RTC_USE_DS1307 == 1
  RTC_DS1307& _rtc;
#elif RTC_USE_PCF8523 == 1
  RTC_PCF8523& _rtc;
#else
  RTC_Millis& _rtc;
#endif
  unsigned long _nextRTCfetch;
  BTCDateTime _currentTime;

  void _checkTimers();
  void _checkTimer(int timer, const DateTime& now);
public:
  // constructors for ONE of the RTClib supported RTC chips
#if RTC_USE_DS3231 == 1
  CClock(RTC_DS3231& rtc) : _rtc(rtc) {};
#elif RTC_USE_DS1307 == 1
  CClock(RTC_1307& rtc) : _rtc(rtc) {};
#elif RTC_USE_PCF8523 == 1
  CClock(RTC_PCF8523& rtc) : _rtc(rtc) {};
#else
  CClock(RTC_Millis& rtc) : _rtc(rtc) {};
#endif
  void begin();
  const BTCDateTime& update();
  const BTCDateTime& get() const;
  void set(const DateTime& newTime);
};

extern CClock Clock;

#endif // __BTC_TIMERS_H__