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Editing: EstimatorService.php

<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\SuspiciousLogin\Service;

use OCA\SuspiciousLogin\Exception\ModelNotFoundException;
use OCA\SuspiciousLogin\Exception\ServiceException;
use Psr\Log\LoggerInterface;
use Rubix\ML\Datasets\Unlabeled;
use RuntimeException;

class EstimatorService {

public function __construct(
		private ModelStore $modelStore,
		private LoggerInterface $logger,
	) {
	}

/**
	 * @param string $uid
	 * @param string $ip
	 * @param int|null $modelId
	 *
	 * @return bool
	 * @throws ModelNotFoundException
	 * @throws ServiceException
	 */
	public function predict(string $uid, string $ip, AClassificationStrategy $strategy, ?int $modelId = null): bool {
		try {
			if ($modelId === null) {
				$this->logger->debug('loading latest model');

$estimator = $this->modelStore->loadLatest($strategy);
			} else {
				$this->logger->debug("loading model $modelId");

$estimator = $this->modelStore->load($modelId);
			}
		} catch (RuntimeException $e) {
			throw new ServiceException("Could not load model $modelId to classify UID $uid and IP $ip: " . $e->getMessage(), $e->getCode(), $e);
		}

$data = new Unlabeled([
			$strategy->newVector($uid, $ip),
		]);

$predictions = $estimator->predict($data);

return $predictions[0] === 'y';
	}
}

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