/*
 * Copyright (c) 2011 Tobias Markmann
 * Licensed under the simplified BSD license.
 * See Documentation/Licenses/BSD-simplified.txt for more information.
 */

/*
 * Copyright (c) 2013-2017 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#pragma once

#include <Swiften/FileTransfer/RemoteJingleTransportCandidateSelector.h>

#include <memory>
#include <queue>
#include <vector>

#include <Swiften/Elements/JingleS5BTransportPayload.h>
#include <Swiften/FileTransfer/FileTransferOptions.h>
#include <Swiften/FileTransfer/SOCKS5BytestreamClientSession.h>
#include <Swiften/JID/JID.h>
#include <Swiften/Network/Connection.h>

namespace Swift {
    class ConnectionFactory;
    class TimerFactory;

    class RemoteJingleTransportCandidateSelector {
        public:
            RemoteJingleTransportCandidateSelector(ConnectionFactory*, TimerFactory*, const FileTransferOptions&);
            virtual ~RemoteJingleTransportCandidateSelector();

            virtual void addCandidates(const std::vector<JingleS5BTransportPayload::Candidate>&);
            virtual void setSOCKS5DstAddr(const std::string&);
            virtual void startSelectingCandidate();
            virtual void stopSelectingCandidate();

            boost::signals2::signal<void (const boost::optional<JingleS5BTransportPayload::Candidate>&, std::shared_ptr<SOCKS5BytestreamClientSession>)> onCandidateSelectFinished;

        private:
            void tryNextCandidate();
            void handleSessionReady(bool error);

        private:
            ConnectionFactory* connectionFactory;
            TimerFactory* timerFactory;

            std::priority_queue<
                JingleS5BTransportPayload::Candidate,
                std::vector<JingleS5BTransportPayload::Candidate>,
                JingleS5BTransportPayload::CompareCandidate> candidates;
            std::shared_ptr<SOCKS5BytestreamClientSession> s5bSession;
            boost::signals2::connection sessionReadyConnection;
            JingleS5BTransportPayload::Candidate lastCandidate;
            std::string socks5DstAddr;
            FileTransferOptions options;
        };
}