85 lines
2.6 KiB
PHP
85 lines
2.6 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* Nextcloud - Related Resources
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*
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* This file is licensed under the Affero General Public License version 3 or
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* later. See the COPYING file.
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*
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* @author Maxence Lange <maxence@artificial-owl.com>
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* @copyright 2022
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCA\RelatedResources\LinkWeightCalculators;
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use OCA\RelatedResources\ILinkWeightCalculator;
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use OCA\RelatedResources\IRelatedResource;
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use OCA\RelatedResources\Model\RelatedResource;
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use OCA\RelatedResources\Tools\Traits\TArrayTools;
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class AncienShareWeightCalculator implements ILinkWeightCalculator {
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use TArrayTools;
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private static float $RATIO_5Y = 0.4;
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private static float $RATIO_3Y = 0.7;
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private static float $RATIO_1Y = 0.85;
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/**
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* @inheritDoc
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*/
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public function weight(IRelatedResource $current, array &$result): void {
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if (!$current->hasMeta(RelatedResource::LINK_CREATION)) {
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return;
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}
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foreach ($result as $entry) {
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if (!$entry->hasMeta(RelatedResource::LINK_CREATION)) {
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continue;
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}
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$now = time();
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$entryCreation = $entry->getMetaInt(RelatedResource::LINK_CREATION);
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if ($entryCreation < $now - (5 * 360 * 24 * 3600)) { // 5y
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$entry->improve(self::$RATIO_5Y, 'ancien_5y');
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} elseif ($entryCreation < $now - (3 * 360 * 24 * 3600)) { // 3y
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$entry->improve(self::$RATIO_3Y, 'ancien_3y');
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} elseif ($entryCreation < $now - (360 * 24 * 3600)) { // 1y
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$entry->improve(self::$RATIO_1Y, 'ancien_1y');
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}
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$diff = abs(
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$current->getMetaInt(RelatedResource::LINK_CREATION)
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- $entry->getMetaInt(RelatedResource::LINK_CREATION)
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);
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// calculate an improvement base on 0.75 up to 1.2, based on difference of time between 2 shares
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// with 1.0 score for a 3 month period
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$neutral = 90 * 24 * 3600;
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$ratio = $diff - $neutral;
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$impr = 1 - ($ratio * 0.2 / $neutral);
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$impr = max($impr, 0.75);
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$entry->improve($impr, 'ancien_3m');
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}
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}
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}
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