<?php

/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
*/

declare(strict_types=1);

namespace pocketmine\network\mcpe\protocol\types;

use InvalidArgumentException;

class CommandEnumConstraint{
	/** @var CommandEnum */
	private $enum;
	/** @var int */
	private $valueOffset;
	/** @var int[] */
	private $constraints; //TODO: find constants

	/**
	 * @param int[] $constraints
	 */
	public function __construct(CommandEnum $enum, int $valueOffset, array $constraints){
		(static function(int ...$_) : void{ })(...$constraints);
		if(!isset($enum->enumValues[$valueOffset])){
			throw new InvalidArgumentException("Invalid enum value offset $valueOffset");
		}
		$this->enum = $enum;
		$this->valueOffset = $valueOffset;
		$this->constraints = $constraints;
	}

	public function getEnum() : CommandEnum{
		return $this->enum;
	}

	public function getValueOffset() : int{
		return $this->valueOffset;
	}

	public function getAffectedValue() : string{
		return $this->enum->enumValues[$this->valueOffset];
	}

	/**
	 * @return int[]
	 */
	public function getConstraints() : array{
		return $this->constraints;
	}
}
