#pragma once

#include "sync.hh"
#include "util.hh"

namespace nix {

class SSHMaster {
 private:
  const std::string host;
  bool fakeSSH;
  const std::string keyFile;
  const bool useMaster;
  const bool compress;
  const int logFD;

  struct State {
    Pid sshMaster;
    std::unique_ptr<AutoDelete> tmpDir;
    Path socketPath;
  };

  Sync<State> state_;

  void addCommonSSHOpts(Strings& args);

 public:
  SSHMaster(const std::string& host, const std::string& keyFile, bool useMaster,
            bool compress, int logFD = -1);

  struct Connection {
    Pid sshPid;
    AutoCloseFD out, in;
  };

  std::unique_ptr<Connection> startCommand(const std::string& command);

  Path startMaster();
};

}  // namespace nix