/*************************************************************************/
/*  multiplayer_synchronizer.h                                           */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#ifndef MULTIPLAYER_SYNCHRONIZER_H
#define MULTIPLAYER_SYNCHRONIZER_H

#include "scene/main/node.h"

#include "scene_replication_config.h"

class MultiplayerSynchronizer : public Node {
	GDCLASS(MultiplayerSynchronizer, Node);

public:
	enum VisibilityUpdateMode {
		VISIBILITY_PROCESS_IDLE,
		VISIBILITY_PROCESS_PHYSICS,
		VISIBILITY_PROCESS_NONE,
	};

private:
	Ref<SceneReplicationConfig> replication_config;
	NodePath root_path = NodePath(".."); // Start with parent, like with AnimationPlayer.
	uint64_t interval_msec = 0;
	VisibilityUpdateMode visibility_update_mode = VISIBILITY_PROCESS_IDLE;
	HashSet<Callable> visibility_filters;
	HashSet<int> peer_visibility;

	static Object *_get_prop_target(Object *p_obj, const NodePath &p_prop);
	void _start();
	void _stop();
	void _update_process();

protected:
	static void _bind_methods();
	void _notification(int p_what);

public:
	static Error get_state(const List<NodePath> &p_properties, Object *p_obj, Vector<Variant> &r_variant, Vector<const Variant *> &r_variant_ptrs);
	static Error set_state(const List<NodePath> &p_properties, Object *p_obj, const Vector<Variant> &p_state);

	void set_replication_interval(double p_interval);
	double get_replication_interval() const;
	uint64_t get_replication_interval_msec() const;

	void set_replication_config(Ref<SceneReplicationConfig> p_config);
	Ref<SceneReplicationConfig> get_replication_config();

	void set_root_path(const NodePath &p_path);
	NodePath get_root_path() const;
	virtual void set_multiplayer_authority(int p_peer_id, bool p_recursive = true) override;

	bool is_visibility_public() const;
	void set_visibility_public(bool p_public);
	bool is_visible_to(int p_peer);
	void set_visibility_for(int p_peer, bool p_visible);
	bool get_visibility_for(int p_peer) const;
	void update_visibility(int p_for_peer);
	void set_visibility_update_mode(VisibilityUpdateMode p_mode);
	void add_visibility_filter(Callable p_callback);
	void remove_visibility_filter(Callable p_callback);
	VisibilityUpdateMode get_visibility_update_mode() const;

	MultiplayerSynchronizer();
};

VARIANT_ENUM_CAST(MultiplayerSynchronizer::VisibilityUpdateMode);

#endif // MULTIPLAYER_SYNCHRONIZER_H