/*!
 * \brief Performs common setup for a bridge playback operation
 * with both new controls and when existing controls are  found.
 *
 * \param args_media medias to play
 * \param args_media_count number of media items in \c media
 * \param args_lang language string split from arguments
 * \param args_offset_ms milliseconds offset split from arguments
 * \param args_playback_id string to use for playback split from
 *        arguments (null valid)
 * \param response ARI response being built
 * \param bridge Bridge the playback is being peformed on
 * \param control Control being used for the playback channel
 * \param json contents of the response to ARI
 * \param playback_url stores playback URL for use with response
 *
 * \retval -1 operation failed
 * \retval operation was successful
 */
static int ari_bridges_play_helper(const char **args_media,
	size_t args_media_count,
	const char *args_lang,
	int args_offset_ms,
	int args_skipms,
	const char *args_playback_id,
	struct ast_ari_response *response,
	struct ast_bridge *bridge,
	struct stasis_app_control *control,
	struct ast_json **json,
	char **playback_url)
{
	RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
	RAII_VAR(struct stasis_app_playback *, playback, NULL, ao2_cleanup);

	const char *language;

	snapshot = stasis_app_control_get_snapshot(control);
	if (!snapshot) {
		ast_ari_response_error(
			response, 500, "Internal Error", "Failed to get control snapshot");
		return -1;
	}

	language = S_OR(args_lang, snapshot->language);

	playback = stasis_app_control_play_uri(control, args_media, args_media_count,
		language, bridge->uniqueid, STASIS_PLAYBACK_TARGET_BRIDGE, args_skipms,
		args_offset_ms, args_playback_id);

	if (!playback) {
		ast_ari_response_alloc_failed(response);
		return -1;
	}

	if (ast_asprintf(playback_url, "/playbacks/%s",
			stasis_app_playback_get_id(playback)) == -1) {
		playback_url = NULL;
		ast_ari_response_alloc_failed(response);
		return -1;
	}

	*json = stasis_app_playback_to_json(playback);
	if (!*json) {
		ast_ari_response_alloc_failed(response);
		return -1;
	}

	return 0;
}
static void ari_channels_handle_play(
	const char *args_channel_id,
	const char *args_media,
	const char *args_lang,
	int args_offsetms,
	int args_skipms,
	const char *args_playback_id,
	struct ast_ari_response *response)
{
	RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
	RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
	RAII_VAR(struct stasis_app_playback *, playback, NULL, ao2_cleanup);
	RAII_VAR(char *, playback_url, NULL, ast_free);
	struct ast_json *json;
	const char *language;

	ast_assert(response != NULL);

	control = find_control(response, args_channel_id);
	if (control == NULL) {
		/* Response filled in by find_control */
		return;
	}

	snapshot = stasis_app_control_get_snapshot(control);
	if (!snapshot) {
		ast_ari_response_error(
			response, 404, "Not Found",
			"Channel not found");
		return;
	}

	if (args_skipms < 0) {
		ast_ari_response_error(
			response, 400, "Bad Request",
			"skipms cannot be negative");
		return;
	}

	if (args_offsetms < 0) {
		ast_ari_response_error(
			response, 400, "Bad Request",
			"offsetms cannot be negative");
		return;
	}

	language = S_OR(args_lang, snapshot->language);

	playback = stasis_app_control_play_uri(control, args_media, language,
		args_channel_id, STASIS_PLAYBACK_TARGET_CHANNEL, args_skipms, args_offsetms, args_playback_id);
	if (!playback) {
		ast_ari_response_error(
			response, 500, "Internal Server Error",
			"Failed to queue media for playback");
		return;
	}

	if (ast_asprintf(&playback_url, "/playback/%s",
			stasis_app_playback_get_id(playback)) == -1) {
		playback_url = NULL;
		ast_ari_response_error(
			response, 500, "Internal Server Error",
			"Out of memory");
		return;
	}

	json = stasis_app_playback_to_json(playback);
	if (!json) {
		ast_ari_response_error(
			response, 500, "Internal Server Error",
			"Out of memory");
		return;
	}

	ast_ari_response_created(response, playback_url, json);
}