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<?php
/**
 * @file classes/services/PublicationService.php
 *
 * Copyright (c) 2014-2021 Simon Fraser University
 * Copyright (c) 2000-2021 John Willinsky
 * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
 *
 * @class PublicationService
 * @ingroup services
 *
 * @brief Extends the base publication service class with app-specific
 *  requirements.
 */
namespace APP\Services;

use \Application;
use \AppLocale;
use \Core;
use \Services;
use \PKP\Services\PKPPublicationService;
use DAORegistry;

class PublicationService extends PKPPublicationService {

/**
	 * Initialize hooks for extending PKPPublicationService
	 */
	public function __construct() {
		\HookRegistry::register('Publication::getProperties', [$this, 'getPublicationProperties']);
		\HookRegistry::register('Publication::validate', [$this, 'validatePublication']);
		\HookRegistry::register('Publication::validatePublish', [$this, 'validatePublishPublication']);
		\HookRegistry::register('Publication::version', [$this, 'versionPublication']);
		\HookRegistry::register('Publication::publish::before', [$this, 'publishPublicationBefore']);
		\HookRegistry::register('Publication::delete::before', [$this, 'deletePublicationBefore']);
	}

/**
	 * Add values when retrieving an object's properties
	 *
	 * @param $hookName string
	 * @param $args array [
	 *		@option array Property values
	 *		@option Publication
	 *		@option array The props requested
	 *		@option array Additional arguments (such as the request object) passed
	 * ]
	 */
	public function getPublicationProperties($hookName, $args) {
		$values =& $args[0];
		$publication = $args[1];
		$props = $args[2];
		$dependencies = $args[3];
		$request = $dependencies['request'];
		$dispatcher = $request->getDispatcher();

// Get required submission and context
		$submission = !empty($args['submission'])
			? $args['submission']
			: $args['submission'] = Services::get('submission')->get($publication->getData('submissionId'));

$submissionContext = !empty($dependencies['context'])
			? $dependencies['context']
			: $dependencies['context'] = Services::get('context')->get($submission->getData('contextId'));

foreach ($props as $prop) {
			switch ($prop) {
				case 'galleys':
					$values[$prop] = array_map(
						function($galley) use ($dependencies) {
							return Services::get('galley')->getSummaryProperties($galley, $dependencies);
						},
						$publication->getData('galleys')
					);
					break;
				case 'urlPublished':
					$values[$prop] = $dispatcher->url(
						$request,
						ROUTE_PAGE,
						$submissionContext->getData('urlPath'),
						'article',
						'view',
						[$submission->getBestId(), 'version', $publication->getId()]
					);
					break;
			}
		}
	}

/**
	 * Make additional validation checks
	 *
	 * @param $hookName string
	 * @param $args array [
	 *		@option array Validation errors already identified
		*		@option string One of the VALIDATE_ACTION_* constants
		*		@option array The props being validated
		*		@option array The locales accepted for this object
		*    @option string The primary locale for this object
		* ]
		*/
	public function validatePublication($hookName, $args) {
		$errors =& $args[0];
		$action = $args[1];
		$props = $args[2];
		$allowedLocales = $args[3];
		$primaryLocale = $args[4];

// Ensure that the specified section exists
		$section = null;
		if (isset($props['sectionId'])) {
			$section = Application::get()->getSectionDAO()->getById($props['sectionId']);
			if (!$section) {
				$errors['sectionId'] = [__('publication.invalidSection')];
			}
		}

// Get the section so we can validate section abstract requirements
		if (!$section && isset($props['id'])) {
			$publication = Services::get('publication')->get($props['id']);
			$sectionDao = DAORegistry::getDAO('SectionDAO'); /* @var $sectionDao SectionDAO */
			$section = $sectionDao->getById($publication->getData('sectionId'));
		}

if ($section) {

// Require abstracts if the section requires them
			if ($action === VALIDATE_ACTION_ADD && !$section->getData('abstractsNotRequired') && empty($props['abstract'])) {
				$errors['abstract'][$primaryLocale] = [__('author.submit.form.abstractRequired')];
			}

if (isset($props['abstract']) && empty($errors['abstract'])) {

// Require abstracts in the primary language if the section requires them
				if (!$section->getData('abstractsNotRequired')) {
					if (empty($props['abstract'][$primaryLocale])) {
						if (!isset($errors['abstract'])) {
							$errors['abstract'] = [];
						};
						AppLocale::requireComponents(LOCALE_COMPONENT_APP_AUTHOR);
						$errors['abstract'][$primaryLocale] = [__('author.submit.form.abstractRequired')];
					}
				}

// Check the word count on abstracts
				foreach ($allowedLocales as $localeKey) {
					if (empty($props['abstract'][$localeKey])) {
						continue;
					}
					$wordCount = count(preg_split('/\s+/', trim(str_replace('&nbsp;', ' ', strip_tags($props['abstract'][$localeKey])))));
					$wordCountLimit = $section->getData('wordCount');
					if ($wordCountLimit && $wordCount > $wordCountLimit) {
						if (!isset($errors['abstract'])) {
							$errors['abstract'] = [];
						};
						$errors['abstract'][$localeKey] = [__('publication.wordCountLong', ['limit' => $wordCountLimit, 'count' => $wordCount])];
					}
				}
			}
		}

// Ensure that the issueId exists
		if (isset($props['issueId']) && empty($errors['issueId'])) {
			$issue = Services::get('issue')->get($props['issueId']);
			if (!$issue) {
				$errors['issueId'] = [__('publication.invalidIssue')];
			}
		}
	}

/**
	 * Make additional validation checks against publishing requirements
	 *
	 * @see PKPPublicationService::validatePublish()
	 * @param $hookName string
	 * @param $args array [
	 *		@option array Validation errors already identified
	 *		@option Publication The publication to validate
	 *		@option Submission The submission of the publication being validated
	 *		@option array The locales accepted for this object
	 *		@option string The primary locale for this object
	 * ]
	 */
	public function validatePublishPublication($hookName, $args) {
		$errors =& $args[0];
		$publication = $args[1];
		$submission = $args[2];

// Every publication must be scheduled in an issue
		if (!$publication->getData('issueId') || !Services::get('issue')->get($publication->getData('issueId'))) {
			$errors['issueId'] = __('publication.required.issue');
		}

// If submission fees are enabled, check that they're fulfilled
		$context = Application::get()->getRequest()->getContext();
		if (!$context || $context->getId() !== $submission->getData('contextId')) {
			$context = Services::get('context')->get($submission->getData('contextId'));
		}
		$paymentManager = \Application::getPaymentManager($context);
		$completedPaymentDao = \DAORegistry::getDAO('OJSCompletedPaymentDAO'); /* @var $completedPaymentDao OJSCompletedPaymentDAO */
		$publicationFeeEnabled = $paymentManager->publicationEnabled();
		$publicationFeePayment = $completedPaymentDao->getByAssoc(null, PAYMENT_TYPE_PUBLICATION, $submission->getId());
		if ($publicationFeeEnabled && !$publicationFeePayment) {
			$errors['publicationFeeStatus'] = __('editor.article.payment.publicationFeeNotPaid');
		}
	}

/**
	 * Copy OJS-specific objects when a new publication version is created
	 *
	 * @param $hookName string
	 * @param $args array [
	 *		@option Publication The new version of the publication
	 *		@option Publication The old version of the publication
	 *		@option Request
	 * ]
	 */
	public function versionPublication($hookName, $args) {
		$newPublication = $args[0];
		$oldPublication = $args[1];
		$request = $args[2];

$galleys = $oldPublication->getData('galleys');
		if (!empty($galleys)) {
			foreach ($galleys as $galley) {
				$newGalley = clone $galley;
				$newGalley->setData('id', null);
				$newGalley->setData('publicationId', $newPublication->getId());
				Services::get('galley')->add($newGalley, $request);
			}
		}

$newPublication->setData('galleys', $this->get($newPublication->getId())->getData('galleys'));
	}

/**
	 * Modify a publication before it is published
	 *
	 * @param $hookName string
	 * @param $args array [
	 *		@option Publication The new version of the publication
	 *		@option Publication The old version of the publication
	 * ]
	 */
	public function publishPublicationBefore($hookName, $args) {
		$newPublication = $args[0];
		$oldPublication = $args[1];

// In OJS, a publication may be scheduled in a future issue. In such cases,
		// the datePublished should remain empty and the status should be set to
		// scheduled.
		$issue = Services::get('issue')->get($newPublication->getData('issueId'));
		if ($issue && !$issue->getData('published')) {
			$newPublication->setData('datePublished', null);
			$newPublication->setData('status', STATUS_SCHEDULED);
		}
	}

/**
	 * Delete OJS-specific objects before a publication is deleted
	 *
	 * @param $hookName string
	 * @param $args array [
	 *		@option Publication The publication being deleted
	 * ]
	 */
	public function deletePublicationBefore($hookName, $args) {
		$publication = $args[0];

$galleysIterator = Services::get('galley')->getMany(['publicationIds' => $publication->getId()]);
		foreach ($galleysIterator as $galley) {
			Services::get('galley')->delete($galley);
		}
	}
}