File "MutableGenerator.php"

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<?php

/*
 * This file is part of the Keygen package.
 *
 * (c) Glad Chinda <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Keygen\Traits;

use InvalidArgumentException;
use Keygen\AbstractGenerator;

trait MutableGenerator
{
	use FlattenArguments;

	/**
	 * A collection of mutable attributes.
	 * 
	 * @var array
	 */
	protected $mutables = [];

	/**
	 * Add mutable attributes to the mutables collection
	 * 
	 * @param mixed $props
	 * @return $this
	 * 
	 * @throws \InvalidArgumentException
	 */
	public function mutable($props)
	{
		$props = call_user_func_array(array($this, 'flattenArguments'), func_get_args()); 
		$collect = $unknown = [];

		foreach ($props as $prop) {
			if (!property_exists(AbstractGenerator::class, $prop)) {
				array_push($unknown, $prop);
				continue;
			}

			array_push($collect, $prop);
		}

		if (!empty($unknown)) {

			throw new InvalidArgumentException(sprintf("Cannot add unknown %s to mutables collection ('%s').", (count($unknown) > 1) ? 'properties' : 'property', join("', '", $unknown)));
			
		}
		
		$this->mutables = array_merge(array_diff($this->mutables, $collect), $collect);
		
		return $this;
	}

	/**
	 * Remove attributes from the mutables collection
	 * 
	 * @param mixed $props
	 * @return $this
	 */
	public function immutable($props)
	{
		$props = call_user_func_array(array($this, 'flattenArguments'), func_get_args());
		
		$this->mutables = array_diff($this->mutables, $props);
		
		return $this;
	}
}