#ifndef TERM_SM_H
#define TERM_SM_H

typedef int sm_event_id;

struct sm_state;
struct sm_transition;
struct sm_context;

typedef void (*sm_action)(struct sm_context*, sm_event_id);
typedef int (*sm_predicate)(sm_event_id);

struct sm_transition {
  sm_predicate event_matcher;
  sm_action transition_action;
  struct sm_state *transition_target;
};

struct sm_state {
  const char *name;
  sm_action entry_action;
  sm_action exit_action;
  struct sm_transition *transitions;
};

struct sm_context {
  struct sm_state *current_state;
  struct sm_transition *global_transitions;
};

void sm_put_event(struct sm_context *machine, sm_event_id event);

#endif