<?php
/**
 * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
 * SPDX-License-Identifier: AGPL-3.0-only
 */
namespace OCA\Files_External\Lib;

use OCA\Files_External\Service\BackendService;

/**
 * Trait to implement visibility mechanics for a configuration class
 *
 * The standard visibility defines which users/groups can use or see the
 * object. The allowed visibility defines the maximum visibility allowed to be
 * set on the object. The standard visibility is often set dynamically by
 * stored configuration parameters that can be modified by the administrator,
 * while the allowed visibility is set directly by the object and cannot be
 * modified by the administrator.
 */
trait VisibilityTrait {

	/** @var int visibility */
	protected $visibility = BackendService::VISIBILITY_DEFAULT;

	/** @var int allowed visibilities */
	protected $allowedVisibility = BackendService::VISIBILITY_DEFAULT;

	/**
	 * @return int
	 */
	public function getVisibility() {
		return $this->visibility;
	}

	/**
	 * Check if the backend is visible for a user type
	 *
	 * @param int $visibility
	 * @return bool
	 */
	public function isVisibleFor($visibility) {
		if ($this->visibility & $visibility) {
			return true;
		}
		return false;
	}

	/**
	 * @param int $visibility
	 * @return self
	 */
	public function setVisibility($visibility) {
		$this->visibility = $visibility;
		$this->allowedVisibility |= $visibility;
		return $this;
	}

	/**
	 * @param int $visibility
	 * @return self
	 */
	public function addVisibility($visibility) {
		return $this->setVisibility($this->visibility | $visibility);
	}

	/**
	 * @param int $visibility
	 * @return self
	 */
	public function removeVisibility($visibility) {
		return $this->setVisibility($this->visibility & ~$visibility);
	}

	/**
	 * @return int
	 */
	public function getAllowedVisibility() {
		return $this->allowedVisibility;
	}

	/**
	 * Check if the backend is allowed to be visible for a user type
	 *
	 * @param int $allowedVisibility
	 * @return bool
	 */
	public function isAllowedVisibleFor($allowedVisibility) {
		if ($this->allowedVisibility & $allowedVisibility) {
			return true;
		}
		return false;
	}

	/**
	 * @param int $allowedVisibility
	 * @return self
	 */
	public function setAllowedVisibility($allowedVisibility) {
		$this->allowedVisibility = $allowedVisibility;
		$this->visibility &= $allowedVisibility;
		return $this;
	}

	/**
	 * @param int $allowedVisibility
	 * @return self
	 */
	public function addAllowedVisibility($allowedVisibility) {
		return $this->setAllowedVisibility($this->allowedVisibility | $allowedVisibility);
	}

	/**
	 * @param int $allowedVisibility
	 * @return self
	 */
	public function removeAllowedVisibility($allowedVisibility) {
		return $this->setAllowedVisibility($this->allowedVisibility & ~$allowedVisibility);
	}
}