#ifndef COMPLIB_SERVER_HEALTHCHECKER_HPP
#define COMPLIB_SERVER_HEALTHCHECKER_HPP

#include <thread>
#include <chrono>

#define HEALTH_CHECK_TIMEOUT_MS 500

class HealthChecker {
public:
  static HealthChecker &getInstance() {
    static HealthChecker instance;
    return instance;
  }

  HealthChecker(HealthChecker const &) = delete;

  void operator=(HealthChecker const &) = delete;

  void update();

private:
  HealthChecker();

  [[noreturn]] void check_loop();

  typedef std::chrono::steady_clock clock;

  std::thread check_thread;
  std::chrono::time_point<clock> last_update;
  bool stop_sent = false;
};


#endif //COMPLIB_SERVER_HEALTHCHECKER_HPP