/*
 * Copyright (c) 2010-2020 Belledonne Communications SARL.
 *
 * This file is part of Liblinphone.
 *
 * 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 3 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 <algorithm>

#include "sal/sal_stream_bundle.h"
#include "sal/sal_stream_description.h"
#include "sal/sal_stream_configuration.h"

LINPHONE_BEGIN_NAMESPACE

SalStreamBundle::SalStreamBundle(){
	mids.clear();
}

SalStreamBundle::SalStreamBundle(const char * ids){
	char *tmp = (char*)ms_malloc0(strlen(ids) + 1);
	int err;
	do{
		int consumed = 0;
		err = sscanf(ids, "%s%n", tmp, &consumed);
		if (err > 0){
			mids.push_back(tmp);
			ids += consumed;
		}else break;
	}while( *ids != '\0');
	ms_free(tmp);
}

SalStreamBundle::SalStreamBundle(const SalStreamBundle &other){
	mids = other.mids;
}

SalStreamBundle::~SalStreamBundle(){
	mids.clear();
}

void SalStreamBundle::addToSdp(belle_sdp_session_description_t * session_desc) const {
	char *attr_value = ms_strdup("BUNDLE");
	for (const auto & mid : mids){
		char *tmp = ms_strdup_printf("%s %s", attr_value, mid.c_str());
		ms_free(attr_value);
		attr_value = tmp;
	}
	belle_sdp_session_description_add_attribute(session_desc, belle_sdp_attribute_create("group", attr_value));
	bctbx_free(attr_value);
}

SalStreamBundle &SalStreamBundle::operator=(const SalStreamBundle & other){
	mids = other.mids;
	return *this;
}

bool SalStreamBundle::operator==(const SalStreamBundle & other) const {
	return (mids == other.mids);
}

bool SalStreamBundle::operator!=(const SalStreamBundle & other) const {
	return !(*this == other);
}

void SalStreamBundle::addStream(SalStreamConfiguration & cfg, const std::string &mid){
	cfg.mid = mid;
	mids.push_back(mid);
}

const std::string & SalStreamBundle::getMidOfTransportOwner() const {
	return mids.front(); /* the first one is the transport owner*/
}

bool SalStreamBundle::hasMid(const std::string & mid) const{
	const auto & midIt = std::find_if(mids.cbegin(), mids.cend(), [&mid] (const auto & bundleMid) {
		return (bundleMid.compare(mid) == 0);
	});
	return (midIt != mids.cend());
}

LINPHONE_END_NAMESPACE
