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<?php
/**
* SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCP\WorkflowEngine;
use OCP\EventDispatcher\Event;
/**
* Interface IOperation
*
* @since 9.1
*/
interface IOperation {
/**
* returns a translated name to be presented in the web interface
*
* Example: "Automated tagging" (en), "Aŭtomata etikedado" (eo)
*
* @since 18.0.0
*/
public function getDisplayName(): string;
/**
* returns a translated, descriptive text to be presented in the web interface.
*
* It should be short and precise.
*
* Example: "Tag based automatic deletion of files after a given time." (en)
*
* @since 18.0.0
*/
public function getDescription(): string;
/**
* returns the URL to the icon of the operator for display in the web interface.
*
* Usually, the implementation would utilize the `imagePath()` method of the
* `\OCP\IURLGenerator` instance and simply return its result.
*
* Example implementation: return $this->urlGenerator->imagePath('myApp', 'cat.svg');
*
* @since 18.0.0
*/
public function getIcon(): string;
/**
* returns whether the operation can be used in the requested scope.
*
* Scope IDs are defined as constants in OCP\WorkflowEngine\IManager. At
* time of writing these are SCOPE_ADMIN and SCOPE_USER.
*
* For possibly unknown future scopes the recommended behaviour is: if
* user scope is permitted, the default behaviour should return `true`,
* otherwise `false`.
*
* @param int $scope
* @psalm-param IManager::SCOPE_* $scope
*
* @since 18.0.0
*/
public function isAvailableForScope(int $scope): bool;
/**
* Validates whether a configured workflow rule is valid. If it is not,
* an `\UnexpectedValueException` is supposed to be thrown.
*
* @throws \UnexpectedValueException
* @since 9.1
*/
public function validateOperation(string $name, array $checks, string $operation): void;
/**
* Is being called by the workflow engine when an event was triggered that
* is configured for this operation. An evaluation whether the event
* qualifies for this operation to run has still to be done by the
* implementor by calling the RuleMatchers getMatchingOperations method
* and evaluating the results.
*
* If the implementor is an IComplexOperation, this method will not be
* called automatically. It can be used or left as no-op by the implementor.
*
* @since 18.0.0
*/
public function onEvent(string $eventName, Event $event, IRuleMatcher $ruleMatcher): void;
}
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