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/*****************************************************************
* gmerlin - a general purpose multimedia framework and applications
*
* Copyright (c) 2001 - 2024 Members of the Gmerlin project
* http://github.com/bplaum
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#include <string.h>
#include <config.h>
#include <pthread.h>
#include <unistd.h>
#include <gavl/metatags.h>
#include <gmerlin/backend.h>
#include <gmerlin/utils.h>
#include <gmerlin/bgmsg.h>
#include <gmerlin/player.h>
#include <gmerlin/playermsg.h>
#include <gmerlin/translation.h>
#include <gmerlin/log.h>
#include <gmerlin/httpserver.h>
#include <gmerlin/websocket.h>
#include <gmerlin/bggavl.h>
#define LOG_DOMAIN "backend"
bg_plugin_handle_t *
bg_backend_handle_create(const gavl_dictionary_t * dev)
{
bg_plugin_handle_t * ret = NULL;
bg_backend_plugin_t * p;
char * protocol = NULL;
const char * uri = gavl_dictionary_get_string(dev, GAVL_META_URI);
const bg_plugin_info_t * info;
if(!uri)
return NULL;
gavl_log(GAVL_LOG_INFO, LOG_DOMAIN, "Creating backend handle for %s", uri);
if(!gavl_url_split(uri, &protocol, NULL, NULL, NULL, NULL, NULL))
goto fail;
if(!(info = bg_plugin_find_by_protocol(protocol, BG_PLUGIN_BACKEND_MDB | BG_PLUGIN_BACKEND_RENDERER)))
goto fail;
if(!(ret = bg_plugin_load(info)))
goto fail;
p = (bg_backend_plugin_t *)ret->plugin;
if(!p->open(ret->priv, uri))
{
bg_plugin_unref(ret);
ret = NULL;
}
fail:
if(protocol)
free(protocol);
return ret;
}
int bg_backend_handle_ping(bg_plugin_handle_t * d)
{
bg_backend_plugin_t * p;
// fprintf(stderr, "bg_backend_handle_ping\n");
p = (bg_backend_plugin_t *)d->plugin;
if(p->update)
return p->update(d->priv);
else
return 0;
}
bg_controllable_t * bg_backend_handle_get_controllable(bg_plugin_handle_t * d)
{
if(d->plugin->get_controllable)
return d->plugin->get_controllable(d->priv);
else
return NULL;
}
/* Gmerlin backend */
typedef struct
{
bg_websocket_connection_t * conn;
} gmerlin_backend_t;
void * bg_backend_gmerlin_create()
{
gmerlin_backend_t * priv = calloc(1, sizeof(*priv));
return priv;
}
void bg_backend_gmerlin_destroy(void * priv)
{
gmerlin_backend_t * g = priv;
if(g->conn)
{
bg_websocket_connection_destroy(g->conn);
}
free(g);
}
int bg_backend_gmerlin_open(void * priv, const char * uri_1)
{
int ret = 0;
char * uri = NULL;
const char * pos;
gmerlin_backend_t * g = priv;
if((pos = strstr(uri_1, "://")))
uri = gavl_sprintf("ws%s", pos);
else
uri = gavl_strdup(uri_1);
if(!(g->conn = bg_websocket_connection_create(uri, 5000, NULL)))
{
goto fail;
}
ret = 1;
fail:
if(uri)
free(uri);
return ret;
}
bg_controllable_t * bg_backend_gmerlin_get_controllable(void * priv)
{
gmerlin_backend_t * g = priv;
if(g->conn)
return bg_websocket_connection_get_controllable(g->conn);
else
return NULL;
}
int bg_backend_gmerlin_update(void * priv)
{
gmerlin_backend_t * g = priv;
return bg_websocket_connection_iteration(g->conn);
}
/* Obtain label and icons */
int bg_backend_get_node_info(gavl_dictionary_t * ret)
{
char * uri = NULL;
const char * pos;
int result = 0;
json_object * obj = NULL;
gavl_dictionary_t dict;
const char * addr = gavl_dictionary_get_string(ret, GAVL_META_URI);
gavl_dictionary_init(&dict);
pos = strstr(addr, "://");
uri = gavl_sprintf("http%s/info", pos);
// fprintf(stderr, "Getting node info for %s (info URI: %s)\n", addr, uri);
if(!(obj = bg_json_from_url(uri, NULL)))
goto fail;
if(bg_dictionary_from_json(&dict, obj))
{
gavl_dictionary_merge2(ret, &dict);
result = 1;
}
fail:
if(obj)
json_object_put(obj);
gavl_dictionary_free(&dict);
if(uri)
free(uri);
return result;
}
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