Zone.h

/*
 * MIT License
 * Copyright (c) 2019 Brian T. Park
 */
 
#ifndef ACE_TIME_ZONE_DATA_H
#define ACE_TIME_ZONE_DATA_H
 
#include <AceCommon.h> // KString
#include "../zoneinfo/infos.h"
#include "TimeOffset.h"
 
class Print;
 
namespace ace_time {
 
template <typename D>
class ZoneTemplate {
  public:
    ZoneTemplate(const typename D::ZoneInfo* zoneInfo):
        mZoneInfoBroker(zoneInfo) {}
 
    ZoneTemplate(const typename D::ZoneInfoBroker& zoneInfo):
        mZoneInfoBroker(zoneInfo) {}
 
    // Use default copy constructor and assignment operator
    ZoneTemplate(const ZoneTemplate&) = default;
    ZoneTemplate& operator=(const ZoneTemplate&) = default;
 
    bool isNull() const { return mZoneInfoBroker.isNull(); }
 
    void printNameTo(Print& printer) const {
      const __FlashStringHelper* name = mZoneInfoBroker.name();
      typename D::ZoneContextBroker zoneContext =
          mZoneInfoBroker.zoneContext();
      ace_common::KString kname(
          name, zoneContext.fragments(), zoneContext.numFragments());
      kname.printTo(printer);
    }
 
    void printShortNameTo(Print& printer) const {
      const __FlashStringHelper* name = mZoneInfoBroker.name();
      const __FlashStringHelper* shortName = zoneinfo::findShortName(name);
      ace_common::printReplaceCharTo(printer, shortName, '_', ' ');
    }
 
    uint32_t zoneId() const {
      return mZoneInfoBroker.zoneId();
    }
 
    TimeOffset stdOffset() const {
      uint8_t numEras = mZoneInfoBroker.numEras();
      typename D::ZoneEraBroker zeb = mZoneInfoBroker.era(numEras - 1);
      return TimeOffset::forSeconds(zeb.offsetSeconds());
    }
 
    ace_common::KString kname() const {
      const auto* name = isNull() ? nullptr : mZoneInfoBroker.name();
      typename D::ZoneContextBroker zoneContext =
          mZoneInfoBroker.zoneContext();
      return ace_common::KString(
          name, zoneContext.fragments(), zoneContext.numFragments());
    }
 
  private:
    typename D::ZoneInfoBroker mZoneInfoBroker;
};
 
using BasicZone = ZoneTemplate<basic::Info>;
using ExtendedZone = ZoneTemplate<extended::Info>;
using CompleteZone = ZoneTemplate<complete::Info>;
 
}
 
#endif