#ifndef LOGGER_HH
#define LOGGER_HH

#include <memory>
#include <string>
#include <string_view>

namespace logger {

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

  virtual void err(std::string_view message) = 0;
  virtual void warn(std::string_view message) = 0;
  virtual void info(std::string_view message) = 0;

#if defined(NDEBUG)
  void dbg(std::string_view) {}
#else
  virtual void dbg(std::string_view message) = 0;
#endif

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

[[nodiscard]]
std::unique_ptr<Logger> noop();

[[nodiscard]]
std::unique_ptr<Logger> syslog(std::string ident, bool verbose = false);

[[nodiscard]]
std::unique_ptr<Logger> stderr(bool verbose = false);

}  // namespace logger

#endif  // LOGGER_HH