/*
  This file is part of Ingen.
  Copyright 2012-2015 David Robillard <http://drobilla.net/>

  Ingen is free software: you can redistribute it and/or modify it under the
  terms of the GNU Affero General Public License as published by the Free
  Software Foundation, either version 3 of the License, or any later version.

  Ingen 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 details.

  You should have received a copy of the GNU Affero General Public License
  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef INGEN_CLIENT_SOCKETCLIENT_HPP
#define INGEN_CLIENT_SOCKETCLIENT_HPP

#include "ingen/Log.hpp"
#include "ingen/SocketReader.hpp"
#include "ingen/SocketWriter.hpp"
#include "ingen/URI.hpp"
#include "ingen/World.hpp"
#include "ingen/ingen.h"
#include "raul/Socket.hpp"

#include <cerrno>
#include <cstring>
#include <memory>

namespace ingen {

class Interface;

namespace client {

/** The client side of an Ingen socket connection. */
class INGEN_API SocketClient : public SocketWriter
{
public:
	SocketClient(World&                               world,
	             const URI&                           uri,
	             const std::shared_ptr<raul::Socket>& sock,
	             const std::shared_ptr<Interface>&    respondee)
	    : SocketWriter(world.uri_map(), world.uris(), uri, sock)
	    , _respondee(respondee)
	    , _reader(world, *respondee, sock)
	{}

	std::shared_ptr<Interface> respondee() const override {
		return _respondee;
	}

	void set_respondee(const std::shared_ptr<Interface>& respondee) override
	{
		_respondee = respondee;
	}

	static std::shared_ptr<ingen::Interface>
	new_socket_interface(ingen::World&                            world,
	                     const URI&                               uri,
	                     const std::shared_ptr<ingen::Interface>& respondee)
	{
		const raul::Socket::Type type = (uri.scheme() == "unix"
		                                 ? raul::Socket::Type::UNIX
		                                 : raul::Socket::Type::TCP);

		const std::shared_ptr<raul::Socket> sock{new raul::Socket(type)};
		if (!sock->connect(uri)) {
			world.log().error("Failed to connect <%1%> (%2%)\n",
			                  sock->uri(), strerror(errno));
			return nullptr;
		}
		return std::shared_ptr<Interface>(
		    new SocketClient(world, uri, sock, respondee));
	}

	static void register_factories(World& world) {
		world.add_interface_factory("unix", &new_socket_interface);
		world.add_interface_factory("tcp", &new_socket_interface);
	}

private:
	std::shared_ptr<Interface> _respondee;
	SocketReader               _reader;
};

} // namespace client
} // namespace ingen

#endif // INGEN_CLIENT_SOCKETCLIENT_HPP