<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace KTXF\Resource\Identifier;

/**
 * Entity-level resource identifier (depth 4)
 * 
 * Format: {provider}:{service}:{collection}:{entity}
 */
class EntityIdentifier extends CollectionIdentifier implements EntityIdentifierInterface {

	public function __construct(
		string $provider,
		string $service,
		string $collection,
		private readonly string $_entity,
	) {
		parent::__construct($provider, $service, $collection);
	}

	public function entity(): string {
		return $this->_entity;
	}

	public function depth(): int {
		return 4;
	}

	public function __toString(): string {
		return parent::__toString() . self::SEPARATOR . $this->_entity;
	}

}