/**
 * See Copyright Notice in picrin.h
 */

#include <stdlib.h>

#include "picrin.h"
#include "picrin/pair.h"
#include "picrin/read.h"
#include "picrin/lib.h"
#include "picrin/macro.h"
#include "picrin/error.h"

static pic_value
pic_features(pic_state *pic)
{
  pic_value features = pic_nil_value();

  pic_get_args(pic, "");

  pic_push(pic, pic_sym_value(pic_intern_cstr(pic, "r7rs")), features);
  pic_push(pic, pic_sym_value(pic_intern_cstr(pic, "ieee-float")), features);
  pic_push(pic, pic_sym_value(pic_intern_cstr(pic, "picrin")), features);

  return features;
}

static pic_value
pic_libraries(pic_state *pic)
{
  pic_value libs = pic_nil_value(), lib;

  pic_get_args(pic, "");

  pic_for_each (lib, pic->libs) {
    libs = pic_cons(pic, pic_car(pic, lib), libs);
  }

  return libs;
}

void pic_init_bool(pic_state *);
void pic_init_pair(pic_state *);
void pic_init_port(pic_state *);
void pic_init_number(pic_state *);
void pic_init_file(pic_state *);
void pic_init_proc(pic_state *);
void pic_init_symbol(pic_state *);
void pic_init_vector(pic_state *);
void pic_init_blob(pic_state *);
void pic_init_cont(pic_state *);
void pic_init_char(pic_state *);
void pic_init_error(pic_state *);
void pic_init_str(pic_state *);
void pic_init_macro(pic_state *);
void pic_init_var(pic_state *);
void pic_init_write(pic_state *);
void pic_init_read(pic_state *);
void pic_init_dict(pic_state *);
void pic_init_record(pic_state *);
void pic_init_lib(pic_state *);

#define DONE pic_gc_arena_restore(pic, ai);

void
pic_init_core(pic_state *pic)
{
  size_t ai = pic_gc_arena_preserve(pic);

  pic_init_reader(pic);

  pic_deflibrary (pic, "(picrin base core)") {
    pic_define_syntactic_keyword(pic, pic->lib->env, pic->sDEFINE, pic->rDEFINE);
    pic_define_syntactic_keyword(pic, pic->lib->env, pic->sSETBANG, pic->rSETBANG);
    pic_define_syntactic_keyword(pic, pic->lib->env, pic->sQUOTE, pic->rQUOTE);
    pic_define_syntactic_keyword(pic, pic->lib->env, pic->sLAMBDA, pic->rLAMBDA);
    pic_define_syntactic_keyword(pic, pic->lib->env, pic->sIF, pic->rIF);
    pic_define_syntactic_keyword(pic, pic->lib->env, pic->sBEGIN, pic->rBEGIN);
    pic_define_syntactic_keyword(pic, pic->lib->env, pic->sDEFINE_SYNTAX, pic->rDEFINE_SYNTAX);
  }

  pic_deflibrary (pic, "(picrin library)") {
    pic_defun(pic, "libraries", pic_libraries);
  }

  pic_deflibrary (pic, "(scheme base)") {
    pic_defun(pic, "features", pic_features);

    pic_init_bool(pic); DONE;
    pic_init_pair(pic); DONE;
    pic_init_port(pic); DONE;
    pic_init_number(pic); DONE;
    pic_init_file(pic); DONE;
    pic_init_proc(pic); DONE;
    pic_init_symbol(pic); DONE;
    pic_init_vector(pic); DONE;
    pic_init_blob(pic); DONE;
    pic_init_cont(pic); DONE;
    pic_init_char(pic); DONE;
    pic_init_error(pic); DONE;
    pic_init_str(pic); DONE;
    pic_init_macro(pic); DONE;
    pic_init_var(pic); DONE;
    pic_init_write(pic); DONE;
    pic_init_read(pic); DONE;
    pic_init_dict(pic); DONE;
    pic_init_record(pic); DONE;
    pic_init_lib(pic); DONE;
  }
}