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/***
This file is part of snapcast
Copyright (C) 2014-2024 Johannes Pohl
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/>.
***/
#pragma once
// local headers
#include "authinfo.hpp"
#include "common/message/message.hpp"
#include "common/queue.hpp"
#include "control_requests.hpp"
#include "control_server.hpp"
#include "jsonrpcpp.hpp"
#include "server_settings.hpp"
#include "stream_server.hpp"
#include "stream_session.hpp"
#include "streamreader/stream_manager.hpp"
// 3rd party headers
#include <boost/asio/io_context.hpp>
#include <boost/asio/steady_timer.hpp>
// standard headers
#include <memory>
using acceptor_ptr = std::unique_ptr<tcp::acceptor>;
using session_ptr = std::shared_ptr<StreamSession>;
/**
* Receives and routes PcmStreams
* Processes ControlSession messages
*/
class Server : public StreamMessageReceiver, public ControlMessageReceiver, public PcmStream::Listener
{
friend class Request;
public:
/// c'tor
Server(boost::asio::io_context& io_context, const ServerSettings& serverSettings);
/// d'tor
virtual ~Server() = default;
/// Start the server (control server, stream server and stream manager)
void start();
/// Stop the server (control server, stream server and stream manager)
void stop();
private:
/// Implementation of StreamMessageReceiver
void onMessageReceived(StreamSession* streamSession, const msg::BaseMessage& baseMessage, char* buffer) override;
void onDisconnect(StreamSession* streamSession) override;
/// Implementation of ControllMessageReceiver
void onMessageReceived(std::shared_ptr<ControlSession> controlSession, const std::string& message, const ResponseHandler& response_handler) override;
void onNewSession(std::shared_ptr<ControlSession> session) override
{
std::ignore = session;
};
void onNewSession(std::shared_ptr<StreamSession> session) override;
/// Implementation of PcmStream::Listener
void onPropertiesChanged(const PcmStream* pcmStream, const Properties& properties) override;
void onStateChanged(const PcmStream* pcmStream, ReaderState state) override;
void onChunkRead(const PcmStream* pcmStream, const msg::PcmChunk& chunk) override;
void onChunkEncoded(const PcmStream* pcmStream, std::shared_ptr<msg::PcmChunk> chunk, double duration) override;
void onResync(const PcmStream* pcmStream, double ms) override;
private:
void processRequest(const jsonrpcpp::request_ptr& request, AuthInfo& authinfo, const Request::OnResponse& on_response) const;
/// Save the server state deferred to prevent blocking and lower disk io
/// @param deferred the delay after the last call to saveConfig
void saveConfig(const std::chrono::milliseconds& deferred = std::chrono::seconds(2));
boost::asio::io_context& io_context_;
boost::asio::steady_timer config_timer_;
ServerSettings settings_;
Queue<std::shared_ptr<msg::BaseMessage>> messages_;
std::unique_ptr<ControlServer> controlServer_;
std::unique_ptr<StreamServer> streamServer_;
std::unique_ptr<StreamManager> streamManager_;
ControlRequestFactory request_factory_;
};
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