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/*
* Copyright 2017 Konsulko Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <json-c/json.h>
#define AFB_BINDING_VERSION 2
#include <afb/afb-binding.h>
#include "media-manager.h"
static struct afb_event media_added_event;
static struct afb_event media_removed_event;
/*
* @brief Subscribe for an event
*
* @param struct afb_req : an afb request structure
*
*/
static void subscribe(struct afb_req request)
{
const char *value = afb_req_value(request, "value");
if(value) {
if(!strcasecmp(value, "media_added")) {
afb_req_subscribe(request, media_added_event);
} else if(!strcasecmp(value, "media_removed")) {
afb_req_subscribe(request, media_removed_event);
} else {
afb_req_fail(request, "failed", "Invalid event");
return;
}
}
afb_req_success(request, NULL, NULL);
}
/*
* @brief Unsubscribe for an event
*
* @param struct afb_req : an afb request structure
*
*/
static void unsubscribe(struct afb_req request)
{
const char *value = afb_req_value(request, "value");
if(value) {
if(!strcasecmp(value, "media_added")) {
afb_req_unsubscribe(request, media_added_event);
} else if(!strcasecmp(value, "media_removed")) {
afb_req_unsubscribe(request, media_removed_event);
} else {
afb_req_fail(request, "failed", "Invalid event");
return;
}
}
afb_req_success(request, NULL, NULL);
}
static json_object *new_json_object_from_device(GList *list)
{
json_object *jarray = json_object_new_array();
json_object *jresp = json_object_new_object();
json_object *jstring = NULL;
GList *l;
for (l = list; l; l = l->next)
{
struct Media_Item *item = l->data;
json_object *jdict = json_object_new_object();
jstring = json_object_new_string(item->path);
json_object_object_add(jdict, "path", jstring);
if (item->metadata.title) {
jstring = json_object_new_string(item->metadata.title);
json_object_object_add(jdict, "title", jstring);
}
if (item->metadata.artist) {
jstring = json_object_new_string(item->metadata.artist);
json_object_object_add(jdict, "artist", jstring);
}
if (item->metadata.album) {
jstring = json_object_new_string(item->metadata.album);
json_object_object_add(jdict, "album", jstring);
}
if (item->metadata.genre) {
jstring = json_object_new_string(item->metadata.genre);
json_object_object_add(jdict, "genre", jstring);
}
if (item->metadata.duration) {
json_object *jint = json_object_new_int(item->metadata.duration);
json_object_object_add(jdict, "duration", jint);
}
json_object_array_add(jarray, jdict);
}
if (jstring == NULL)
return NULL;
json_object_object_add(jresp, "Media", jarray);
return jresp;
}
static void media_results_get (struct afb_req request)
{
GList *list;
json_object *jresp = NULL;
ListLock();
list = media_lightmediascanner_scan(NULL);
list = media_local_scan(list);
if (list == NULL) {
afb_req_fail(request, "failed", "media scan error");
ListUnlock();
return;
}
jresp = new_json_object_from_device(list);
g_list_free(list);
ListUnlock();
if (jresp == NULL) {
afb_req_fail(request, "failed", "media parsing error");
return;
}
afb_req_success(request, jresp, "Media Results Displayed");
}
static void media_broadcast_device_added (GList *list)
{
json_object *jresp = new_json_object_from_device(list);
if (jresp != NULL) {
afb_event_push(media_added_event, jresp);
}
}
static void media_broadcast_device_removed (const char *obj_path)
{
json_object *jresp = json_object_new_object();
json_object *jstring = json_object_new_string(obj_path);
json_object_object_add(jresp, "Path", jstring);
afb_event_push(media_removed_event, jresp);
}
static const struct afb_verb_v2 binding_verbs[] = {
{ .verb = "media_result", .callback = media_results_get, .info = "Media scan result" },
{ .verb = "subscribe", .callback = subscribe, .info = "Subscribe for an event" },
{ .verb = "unsubscribe", .callback = unsubscribe, .info = "Unsubscribe for an event" },
{ }
};
static int preinit()
{
Binding_RegisterCallback_t API_Callback;
API_Callback.binding_device_added = media_broadcast_device_added;
API_Callback.binding_device_removed = media_broadcast_device_removed;
BindingAPIRegister(&API_Callback);
return MediaPlayerManagerInit();
}
static int init()
{
media_added_event = afb_daemon_make_event("media_added");
media_removed_event = afb_daemon_make_event("media_removed");
return 0;
}
const struct afb_binding_v2 afbBindingV2 = {
.api = "mediascanner",
.specification = "mediaplayer API",
.preinit = preinit,
.init = init,
.verbs = binding_verbs,
};
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