/**
 *    Copyright (C) 2017 MongoDB Inc.
 *
 *    This program is free software: you can redistribute it and/or  modify
 *    it under the terms of the GNU Affero General Public License, version 3,
 *    as published by the Free Software Foundation.
 *
 *    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 Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the GNU Affero General Public License in all respects for
 *    all of the code used other than as permitted herein. If you modify file(s)
 *    with this exception, you may extend this exception to your version of the
 *    file(s), but you are not obligated to do so. If you do not wish to do so,
 *    delete this exception statement from your version. If you delete this
 *    exception statement from all source files in the program, then also delete
 *    it in the license file.
 */

#pragma once

#include "mongo/base/status.h"
#include "mongo/util/net/hostandport.h"
#include "mongo/util/net/sockaddr.h"

#include <asio.hpp>

namespace mongo {
namespace transport {

inline SockAddr endpointToSockAddr(const asio::generic::stream_protocol::endpoint& endPoint) {
    struct sockaddr_storage sa = {};
    memcpy(&sa, endPoint.data(), endPoint.size());
    SockAddr wrappedAddr(sa, endPoint.size());
    return wrappedAddr;
}

// Utility function to turn an ASIO endpoint into a mongo HostAndPort
inline HostAndPort endpointToHostAndPort(const asio::generic::stream_protocol::endpoint& endPoint) {
    return HostAndPort(endpointToSockAddr(endPoint));
}

inline Status errorCodeToStatus(const std::error_code& ec) {
    if (!ec)
        return Status::OK();

    // If the ec.category() is a mongoErrorCategory() then this error was propogated from
    // mongodb code and we should just pass the error cdoe along as-is.
    ErrorCodes::Error errorCode = (ec.category() == mongoErrorCategory())
        ? ErrorCodes::Error(ec.value())
        // Otherwise it's an error code from the network and we should pass it along as a
        // SocketException
        : ErrorCodes::SocketException;
    // Either way, include the error message.
    return {errorCode, ec.message()};
}

}  // namespace transport
}  // namespace mongo
