/*
  Copyright(C) 2019 Yasuhiro Horimoto <horimoto@clear-code.com>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#include "grn_ctx_impl.h"
#include "grn_ctx_impl_lua.h"

#ifdef GRN_WITH_LUAJIT
static void
grn_ctx_impl_lua_init_real(grn_ctx *ctx)
{
  lua_State *lua;

  lua = lua_open();
  luaL_openlibs(lua);
  ctx->impl->lua.state = lua;
}

static void
grn_ctx_impl_lua_fin_real(grn_ctx * ctx)
{
  if (ctx->impl->lua.state) {
    lua_close(ctx->impl->lua.state);
    ctx->impl->lua.state = NULL;
  }
}
#else /* GRN_WITH_LUAJIT */
static void
grn_ctx_impl_lua_init_real(grn_ctx *ctx)
{
}

static void
grn_ctx_impl_lua_fin_real(grn_ctx *ctx)
{
}
#endif /* GRN_WITH_LUAJIT */

void
grn_ctx_impl_lua_init(grn_ctx *ctx)
{
  ctx->impl->lua.initialized = true;
  grn_ctx_impl_lua_init_real(ctx);
}

void
grn_ctx_impl_lua_fin(grn_ctx *ctx)
{
  if (!ctx->impl->lua.initialized) {
    return;
  }

  ctx->impl->lua.initialized = false;
  grn_ctx_impl_lua_fin_real(ctx);
}
