/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef INVENTORY_H
#define INVENTORY_H

#include "common/array.h"
#include "common/ptr.h"
#include "common/rect.h"
#include "common/scummsys.h"
#include "common/str.h"

namespace Common {
class ReadStream;
class WriteStream;
} // namespace Common

namespace AGDS {
class Object;
using ObjectPtr = Common::SharedPtr<Object>;
class AGDSEngine;

class Inventory {
	class AGDSEngine *_engine;
	struct Entry {
		Common::String name;
		bool hasObject;
		ObjectPtr object;

		void reset() {
			name.clear();
			hasObject = false;
			object.reset();
		}
	};
	using EntriesType = Common::Array<Entry>;
	EntriesType _entries;
	bool _enabled;
	bool _visible;

public:
	static const int kMaxSize = 35;

	Inventory(AGDSEngine *engine);
	~Inventory();

	void load(Common::ReadStream &stream);
	void save(Common::WriteStream &stream) const;

	bool enabled() const {
		return _enabled;
	}
	void enable(bool enabled) {
		_enabled = enabled;
	}

	bool visible() const {
		return _visible;
	}

	void visible(bool visible);

	int add(const Common::String &name);
	int add(const ObjectPtr &object);
	bool remove(const Common::String &name);
	void removeGaps();

	bool has(int index) const;
	ObjectPtr get(int index);
	int find(const Common::String &name) const;
	ObjectPtr find(const Common::Point pos) const;

	int free() const;
	void clear();

	const EntriesType &entries() const {
		return _entries;
	}

	uint maxSize() const {
		return _entries.size();
	}
};

} // End of namespace AGDS

#endif /* AGDS_INVENTORY_H */