/*************************************************************************/
/*  mesh_library.h                                                       */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
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/*************************************************************************/

#ifndef MESH_LIBRARY_H
#define MESH_LIBRARY_H

#include "core/io/resource.h"
#include "core/templates/rb_map.h"
#include "scene/3d/navigation_region_3d.h"
#include "scene/resources/mesh.h"
#include "shape_3d.h"

class MeshLibrary : public Resource {
	GDCLASS(MeshLibrary, Resource);
	RES_BASE_EXTENSION("meshlib");

public:
	struct ShapeData {
		Ref<Shape3D> shape;
		Transform3D local_transform;
	};
	struct Item {
		String name;
		Ref<Mesh> mesh;
		Transform3D mesh_transform;
		Vector<ShapeData> shapes;
		Ref<Texture2D> preview;
		Ref<NavigationMesh> navigation_mesh;
		Transform3D navigation_mesh_transform;
		uint32_t navigation_layers = 1;
	};

	RBMap<int, Item> item_map;

	void _set_item_shapes(int p_item, const Array &p_shapes);
	Array _get_item_shapes(int p_item) const;

protected:
	bool _set(const StringName &p_name, const Variant &p_value);
	bool _get(const StringName &p_name, Variant &r_ret) const;
	void _get_property_list(List<PropertyInfo> *p_list) const;

	virtual void reset_state() override;
	static void _bind_methods();

public:
	void create_item(int p_item);
	void set_item_name(int p_item, const String &p_name);
	void set_item_mesh(int p_item, const Ref<Mesh> &p_mesh);
	void set_item_mesh_transform(int p_item, const Transform3D &p_transform);
	void set_item_navigation_mesh(int p_item, const Ref<NavigationMesh> &p_navigation_mesh);
	void set_item_navigation_mesh_transform(int p_item, const Transform3D &p_transform);
	void set_item_navigation_layers(int p_item, uint32_t p_navigation_layers);
	void set_item_shapes(int p_item, const Vector<ShapeData> &p_shapes);
	void set_item_preview(int p_item, const Ref<Texture2D> &p_preview);
	String get_item_name(int p_item) const;
	Ref<Mesh> get_item_mesh(int p_item) const;
	Transform3D get_item_mesh_transform(int p_item) const;
	Ref<NavigationMesh> get_item_navigation_mesh(int p_item) const;
	Transform3D get_item_navigation_mesh_transform(int p_item) const;
	uint32_t get_item_navigation_layers(int p_item) const;
	Vector<ShapeData> get_item_shapes(int p_item) const;
	Ref<Texture2D> get_item_preview(int p_item) const;

	void remove_item(int p_item);
	bool has_item(int p_item) const;

	void clear();

	int find_item_by_name(const String &p_name) const;

	Vector<int> get_item_list() const;
	int get_last_unused_item_id() const;

	MeshLibrary();
	~MeshLibrary();
};

#endif // MESH_LIBRARY_H