twproxy2/director.h

#ifndef DIRECTOR_H
#define DIRECTOR_H

#include <functional>
#include <string>
#include "session.h"

typedef std::function<void(const std::string &)> stringFunc;

struct OldValues {
  stringFunc server_line;
  stringFunc server_prompt;
  stringFunc client_input;
  bool to_client;
};

class Director;

// possibly setup a timer to call Dispatch.

class Dispatch {
protected:
  OldValues original;
  Director &d;

public:
  Dispatch(Director &);

  virtual void server_line(const std::string &line);
  virtual void server_prompt(const std::string &prompt);
  virtual void client_input(const std::string &input);

  const std::string & get_prompt(void);
  void to_server(const std::string &send);
  void to_client(const std::string &send);
};

class Director {
private:
  Session &session;

public:
  Director(Session &);

  void server_line(const std::string &line);
  void server_prompt(const std::string &prompt);
  void client_input(const std::string &input);

  // These would be called by the Dispatch --
  // since it has direct access to us.
  void to_server(const std::string &send);
  void to_client(const std::string &send);
  const std::string& get_prompt(void);

  void set_server_line(stringFunc new_sl);
  void set_server_prompt(stringFunc new_sp);
  void set_client_input(stringFunc new_ci);

  OldValues get_state(void); // save state and reset to blanks/nullptr
  void restore_state(OldValues);

private:
  stringFunc server_line_;
  stringFunc server_prompt_;
  stringFunc client_input_;
  bool to_client_; // Send server input to the client

  // bool client_to_server; // WHEN would I ever have the client talking
  // directly to the server?  [NEVER]
};

#endif