/*
  This file is part of Ingen.
  Copyright 2007-2016 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_EVENTS_COPY_HPP
#define INGEN_EVENTS_COPY_HPP

#include <list>

#include "ingen/Store.hpp"
#include "raul/Path.hpp"

#include "Event.hpp"

namespace Ingen {
namespace Server {

class BlockImpl;
class CompiledGraph;
class GraphImpl;

namespace Events {

/** Copy a graph object to a new path.
 * \ingroup engine
 */
class Copy : public Event
{
public:
	Copy(Engine&          engine,
	     SPtr<Interface>  client,
	     int32_t          id,
	     SampleCount      timestamp,
	     const Raul::URI& old_uri,
	     const Raul::URI& new_uri);

	bool pre_process();
	void execute(ProcessContext& context);
	void post_process();
	void undo(Interface& target);

private:
	bool engine_to_engine();
	bool engine_to_filesystem();
	bool filesystem_to_engine();

	const Raul::URI _old_uri;
	const Raul::URI _new_uri;
	SPtr<BlockImpl> _old_block;
	GraphImpl*      _parent;
	BlockImpl*      _block;
	CompiledGraph*  _compiled_graph;
};

} // namespace Events
} // namespace Server
} // namespace Ingen

#endif // INGEN_EVENTS_COPY_HPP