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/* libquvi
 * Copyright (C) 2013  Toni Gundogdu <>
 * This file is part of libquvi <>.
 * This library is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public
 * License as published by the Free Software Foundation, either
 * version 3 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
 * GNU Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General
 * Public License along with this library.  If not, see
 * <>.

 * NOTE: The error messages produced in these functions are intended for
 *       developers. They would typically be seen when a new script is
 *       being developed or an old one is being maintained.
 *       These messages should be clear, indicating the actual error,
 *       minimizing the time spent on locating the problem in the script.

#include "config.h"

#include <lauxlib.h>
#include <glib.h>

#include "quvi.h"
/* -- */
#include "_quvi_s.h"
#include "_quvi_subtitle_s.h"
#include "_quvi_script_s.h"
/* -- */
#include "lua/setfield.h"
#include "lua/chk.h"
#include "lua/def.h"

static const gchar script_func[] = "ident";

static QuviError _chk_results(lua_State *l, _quvi_script_t qs)
  QuviError r;

  r = (l_chk_can_parse_url(l, qs, SUS_CAN_PARSE_URL,
                           SUS_DOMAINS, script_func) == TRUE)
      ? QUVI_OK

  lua_pop(l, 1);
  return (r);

QuviError l_exec_subtitle_script_ident(gpointer p, GSList *sl)
  _quvi_subtitle_t qsub;
  _quvi_script_t qs;
  lua_State *l;

  qsub = (_quvi_subtitle_t) p;
  l = qsub->handle.quvi->handle.lua;

  qs = (_quvi_script_t) sl->data;

  if (luaL_dofile(l, qs->fpath->str))
    luaL_error(l, "%s", lua_tostring(l, -1));

  lua_getglobal(l, script_func);

  if (!lua_isfunction(l, -1))
      static const gchar *_E = "%s: the function `%s' was not found";
      luaL_error(l, _E, qs->fpath->str, script_func);

  l_setfield_s(l, SUS_INPUT_URL, qsub->url.input->str, -1);

  if (lua_pcall(l, 1, 1, 0))
      g_string_assign(qsub->handle.quvi->status.errmsg, lua_tostring(l, -1));
      return (QUVI_ERROR_SCRIPT);

  if (!lua_istable(l, -1))
      luaL_error(l, "%s: %s: must return a dictionary",
                 qs->fpath->str, script_func);
  return (_chk_results(l, qs));

/* vim: set ts=2 sw=2 tw=72 expandtab: */