/* libquvi

 * Copyright (C) 2012,2013  Toni Gundogdu <legatvs@gmail.com>

 *

 * This file is part of libquvi <http://quvi.sourceforge.net/>.

 *

 * 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

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * 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

 * <http://www.gnu.org/licenses/>.

 */

#include "config.h"

#include <lauxlib.h>

#include <string.h>

#include <glib.h>

#include "quvi.h"

/* -- */

#include "_quvi_s.h"

#include "_quvi_net_s.h"

#include "_quvi_macro.h"

/* -- */

#include "lua/quvi/opts.h"

#include "net/handle.h"

extern gchar* to_utf8(const gchar*, const gchar*);

extern QuviError c_fetch(_quvi_net_t);

void n_fetch(_quvi_t q, _quvi_net_t *n, const gchar *url, GSList *opts)

{

  *n = n_new(q, url);

  if (q->cb.status != NULL)

    {

      const glong p = q_makelong(QUVI_CALLBACK_STATUS_FETCH, 0);

      if (q->cb.status(p, (gpointer) url, q->cb.userdata.status) != QUVI_OK)

        {

          q->status.rc = QUVI_ERROR_CALLBACK_ABORTED;

          return;

        }

    }

  if (q->cb.fetch != NULL)

    q->status.rc = q->cb.fetch(*n);

  else /* Fetch using cURL (default). */

    q->status.rc = c_fetch(*n);

  if (quvi_ok(q) == QUVI_TRUE && (*n)->status.resp_code == 200)

    {

      /* To UTF8. */

      if (opts != NULL)

        {

          GSList *from;

          if (l_quvi_object_opts_is_set(q->handle.lua, opts,

                                        QUVI_OBJECT_OPTION_FETCH_FROM_CHARSET,

                                        &from, NULL, FALSE)

              == TRUE)

            {

              l_quvi_object_opt_t o;

              gchar *c;

              o = (l_quvi_object_opt_t) from->data;

              c = to_utf8((*n)->fetch.content->str, o->value.str);

              if (c != NULL)

                {

                  g_string_assign((*n)->fetch.content, c);

                  g_free(c);

                }

            }

        }

      /* Update status. */

      if (q->cb.status != NULL)

        {

          const glong p = q_makelong(QUVI_CALLBACK_STATUS_FETCH,

                                     QUVI_CALLBACK_STATUS_DONE);

          if (q->cb.status(p, 0, q->cb.userdata.status) != QUVI_OK)

            q->status.rc = QUVI_ERROR_CALLBACK_ABORTED;

        }

    }

  else

    {

      /* Save returned error message. */

      if ((*n)->status.errmsg->len >0)

        g_string_assign(q->status.errmsg, (*n)->status.errmsg->str);

      else

        {

          g_string_assign(q->status.errmsg,

                          "unknown error: fetch: callback returned "

                          "empty errmsg");

        }

    }

  q->status.resp_code = (*n)->status.resp_code;

}

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