src/tz_info.hh


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#ifndef TZ_INFO_HH
#define TZ_INFO_HH

#include <filesystem>
#include <memory>
#include <optional>
#include <string_view>

class Logger;

class TzInfo {
public:
  virtual ~TzInfo() = default;

  static std::unique_ptr<TzInfo> create(std::shared_ptr<Logger> logger,
                                        std::filesystem::path tzinfo_dir);

  virtual std::optional<time_t> get_local_time(std::string_view tzname,
                                               time_t utc_time) const = 0;


protected:
  TzInfo() = default;
  TzInfo(TzInfo const&) = delete;
  TzInfo& operator=(TzInfo const&) = delete;
};

#endif  // TZ_INFO_HH