/**

  * GMyth Library

  *

  * @file gmyth/gmyth_remote_util.c

  * 

  * @brief <p> This component provides utility functions for accessing remote data.

  *

  * Copyright (C) 2006 INdT - Instituto Nokia de Tecnologia.

  * @author Hallyson Luiz de Morais Melo <hallyson.melo@indt.org.br>

  * @author Rosfran Borges <rosfran.borges@indt.org.br>

  *

  * 

  * This program 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 of the License, or

  * (at your option) any later version.

  *

  * This program 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 General Public License for more details.

  *

  * You should have received a copy of the GNU Lesser General Public License

  * along with this program; if not, write to the Free Software

  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  */

 #ifdef HAVE_CONFIG_H

 #include "config.h"

 #endif

 #include "gmyth_remote_util.h"

 #include "gmyth_recorder.h"

 #include "gmyth_stringlist.h"

 #include "gmyth_debug.h"

 /** 

  * Requests the Mythtv backend for a free remote recorder.

  * 

  * @param socket The socket instance where to send the command.

  * @param curr The recorder index, or -1 to consider the first one.

  * 

  * @return the remote encoder instance available, or NULL if any error happens.

  */

 GMythRecorder  *

 remote_request_next_free_recorder(GMythSocket * socket, gint curr)

 {

     GMythRecorder  *recorder = NULL;

     GString        *hostname;

     gint            num,

                     port;

     GMythStringList *strlist = gmyth_string_list_new();

     gmyth_debug("[%s] Request next free recorder in the backend",

                 __FUNCTION__);

     gmyth_string_list_append_char_array(strlist, "GET_NEXT_FREE_RECORDER");

     gmyth_string_list_append_int(strlist, curr);

     if (!gmyth_socket_sendreceive_stringlist(socket, strlist)) {

         g_warning("GET_NEXT_FREE_RECORDER request error!\n");

         return NULL;

     }

     num = gmyth_string_list_get_int(strlist, 0);

     hostname = gmyth_string_list_get_string(strlist, 1);

     port = gmyth_string_list_get_int(strlist, 2);

     if (num < 0 || port < 0)

         goto clean_up;

     gmyth_debug

         ("[%s] Free recorder info received: num: %d, hostname: %s, port: %d",

          __FUNCTION__, num, hostname->str, port);

     recorder = gmyth_recorder_new(num, hostname, port);

   clean_up:

     g_string_free(hostname, TRUE);

     g_object_unref(strlist);

     return recorder;

 }

 /** 

  * Requests the Mythtv backend for the number of free remote recorders.

  * 

  * @param socket The socket instance where to send the command.

  * 

  * @return the number of remote encoders instance available, or 0 if no one is actually free..

  */

 gint

 gmyth_remote_util_get_free_recorder_count(GMythSocket * socket)

 {

     gint            num_recs = 0;

     GMythStringList *strlist = gmyth_string_list_new();

     gmyth_debug("[%s] Request next free recorder in the backend",

                 __FUNCTION__);

     gmyth_string_list_append_char_array(strlist,

                                         "GET_FREE_RECORDER_COUNT");

     if (!gmyth_socket_sendreceive_stringlist(socket, strlist)) {

         gmyth_debug("GET_FREE_RECORDER_COUNT request error!");

         return 0;

     }

     num_recs = gmyth_string_list_get_int(strlist, 0);

     if (num_recs < 0)

         goto clean_up;

     gmyth_debug("[%s] Free recorder info received: num recorders: %d",

                 __FUNCTION__, num_recs);

   clean_up:

     g_object_unref(strlist);

     return num_recs;

 }