#ifndef GRID_BAG_H
#define GRID_BAG_H

/*************************************************************************/
/*  grid_bag.h                                                           */
/*************************************************************************/
/*                         This file is part of:                         */
/*                          PANDEMONIUM ENGINE                           */
/*             https://github.com/Relintai/pandemonium_engine            */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar.                              */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* 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.                */
/*************************************************************************/

#include "core/containers/vector.h"
#include "core/object/resource.h"

#include "../item_enums.h"

class itemTemplate;
class ItemInstance;

class GridBag : public Reference {
	GDCLASS(GridBag, Reference);

public:
	int get_allowed_item_types() const;
	void set_allowed_item_types(const int value);

	bool add_item(Ref<ItemInstance> item);
	bool add_item_to_position(const int x, const int y, Ref<ItemInstance> item);

	bool can_add_item_at(const int x, const int y, const Ref<ItemInstance> item) const;
	int item_count_under_area(const int x, const int y, const int size_x, const int size_y) const;

	Ref<ItemInstance> get_item(const int index) const;
	Ref<ItemInstance> get_and_remove_item(const int index);
	void remove_item(const int index);

	void basic_add_item(const Ref<ItemInstance> item);
	void basic_remove_item(const int index);

	int get_item_count() const;

	int get_space_map_entry(const int index) const;
	void set_space_map_entry(const int index, const int value);

	int get_size_x() const;
	int get_size_y() const;

	void set_size(const int x, const int y);

	//to_dict();
	//from_dict();

	GridBag();
	~GridBag();

protected:
	static void _bind_methods();

private:
	int _allowed_item_types;

	int _size_x;
	int _size_y;

	Vector<Ref<ItemInstance>> _items;
	Vector<int> _space_map;
};

#endif