#include <stdio.h>
#include <stdlib.h>

#include "picrin.h"

void pic_init_pair(pic_state *);
void pic_init_port(pic_state *);
void pic_init_number(pic_state *);
void pic_init_time(pic_state *);
void pic_init_system(pic_state *);
void pic_init_file(pic_state *);
void pic_init_proc(pic_state *);

void
pic_load_stdlib(pic_state *pic)
{
  static const char *fn = "piclib/built-in.scm";
  FILE *file;
  bool r;
  pic_value v;
  struct pic_proc *proc;

  file = fopen(fn, "r");
  if (file == NULL) {
    fputs("fatal error: could not read built-in.scm", stderr);
    abort();
  }

  r = pic_parse_file(pic, file, &v);
  if (! r) {
    fputs("fatal error: built-in.scm broken", stderr);
    abort();
  }

  proc = pic_codegen(pic, v);
  if (proc == NULL) {
    fputs(pic->errmsg, stderr);
    fputs("fatal error: built-in.scm compilation failure", stderr);
    abort();
  }

  v = pic_apply(pic, proc, pic_nil_value());
  if (pic_undef_p(v)) {
    fputs(pic->errmsg, stderr);
    fputs("fatal error: built-in.scm evaluation failure", stderr);
    abort();
  }

#if DEBUG
  puts("successfully loaded stdlib");
#endif
}

#define DONE pic_gc_arena_restore(pic, ai);

void
pic_init_core(pic_state *pic)
{
  int ai;

  ai = pic_gc_arena_preserve(pic);
  pic_init_pair(pic); DONE;
  pic_init_port(pic); DONE;
  pic_init_number(pic); DONE;
  pic_init_time(pic); DONE;
  pic_init_system(pic); DONE;
  pic_init_file(pic); DONE;
  pic_init_proc(pic); DONE;

  pic_load_stdlib(pic); DONE;
}