kopia lustrzana https://github.com/nextcloud/social
238 wiersze
5.4 KiB
PHP
238 wiersze
5.4 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* Nextcloud - Social Support
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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 2018, Maxence Lange <maxence@artificial-owl.com>
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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\Social\Service;
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use OCA\Social\Tools\Exceptions\DateTimeException;
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use OCA\Social\Tools\Traits\TArrayTools;
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use OCA\Social\Db\HashtagsRequest;
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use OCA\Social\Db\StreamRequest;
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use OCA\Social\Exceptions\HashtagDoesNotExistException;
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use OCA\Social\Exceptions\ItemUnknownException;
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use OCA\Social\Exceptions\SocialAppConfigException;
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use OCA\Social\Model\ActivityPub\Object\Note;
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class HashtagService {
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public const TREND_1H = 3600;
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public const TREND_12H = 43200;
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public const TREND_1D = 86400;
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public const TREND_3D = 259200;
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public const TREND_10D = 864000;
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use TArrayTools;
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private HashtagsRequest $hashtagsRequest;
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private StreamRequest $streamRequest;
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private ConfigService $configService;
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private MiscService $miscService;
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/**
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* ImportService constructor.
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*
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* @param HashtagsRequest $hashtagsRequest
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* @param StreamRequest $streamRequest
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* @param ConfigService $configService
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* @param MiscService $miscService
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*/
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public function __construct(
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HashtagsRequest $hashtagsRequest, StreamRequest $streamRequest,
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ConfigService $configService,
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MiscService $miscService
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) {
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$this->hashtagsRequest = $hashtagsRequest;
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$this->streamRequest = $streamRequest;
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$this->configService = $configService;
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$this->miscService = $miscService;
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}
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/*
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* note: trend is:
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* [
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* '1h' => x,
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* '12h' => x,
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* '1d' => x,
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* '3d' => x,
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* '10d' => x
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* ]
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*/
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/**
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* @return int
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* @throws DateTimeException
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* @throws ItemUnknownException
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* @throws SocialAppConfigException
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*/
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public function manageHashtags(): int {
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$current = $this->hashtagsRequest->getAll();
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$time = time();
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$hashtags = [
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'1h' => $this->getTrendSince($time - self::TREND_1H),
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'12h' => $this->getTrendSince($time - self::TREND_12H),
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'1d' => $this->getTrendSince($time - self::TREND_1D),
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'3d' => $this->getTrendSince($time - self::TREND_3D),
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'10d' => $this->getTrendSince($time - self::TREND_10D)
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];
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$count = 0;
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$formatted = $this->formatTrend($hashtags);
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foreach ($formatted as $hashtag => $trend) {
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$count++;
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try {
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$this->getFromList($current, $hashtag);
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$this->hashtagsRequest->update($hashtag, $trend);
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} catch (HashtagDoesNotExistException $e) {
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$this->hashtagsRequest->save($hashtag, $trend);
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}
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}
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return $count;
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}
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/**
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* @param string $hashtag
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*
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* @return array
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* @throws HashtagDoesNotExistException
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*/
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public function getHashtag(string $hashtag): array {
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if (substr($hashtag, 0, 1) !== '#') {
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$hashtag = '#' . $hashtag;
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}
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return $this->hashtagsRequest->getHashtag($hashtag);
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}
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/**
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* @param string $hashtag
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* @param bool $all
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*
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* @return array
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*/
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public function searchHashtags(string $hashtag, bool $all = false): array {
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return $this->hashtagsRequest->searchHashtags($hashtag, $all);
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}
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/**
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* @param int $timestamp
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*
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* @return int[]
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* @throws DateTimeException
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* @psalm-return array<int>
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*/
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private function getTrendSince(int $timestamp): array {
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$result = [];
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$notes = $this->streamRequest->getNoteSince($timestamp);
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foreach ($notes as $note) {
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/** @var Note $note */
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foreach ($note->getHashtags() as $hashtag) {
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if (array_key_exists($hashtag, $result)) {
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$result[$hashtag]++;
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} else {
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$result[$hashtag] = 1;
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}
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}
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}
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return $result;
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}
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/**
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* @param array $hashtags
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*
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* @return array
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*/
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private function formatTrend(array $hashtags): array {
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$trends = [];
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foreach (end($hashtags) as $hashtag => $count) {
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$trends[$hashtag] = [];
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}
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$all = array_keys($trends);
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$periods = array_keys($hashtags);
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foreach ($all as $hashtag) {
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foreach ($periods as $period) {
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$count = $this->countFromList($hashtags[$period], $hashtag);
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$trends[$hashtag][$period] = $count;
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}
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}
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return $trends;
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}
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/**
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* @param array $list
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* @param string $hashtag
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*
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* @return int
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*/
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private function countFromList(array $list, string $hashtag): int {
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foreach ($list as $key => $count) {
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if ($key === $hashtag) {
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return $count;
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}
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}
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return 0;
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}
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/**
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* @param array $list
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* @param string $hashtag
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*
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* @return array
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* @throws HashtagDoesNotExistException
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*/
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private function getFromList(array $list, string $hashtag): array {
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foreach ($list as $item) {
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if ($this->get('hashtag', $item, '') === $hashtag) {
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return $item;
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}
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}
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throw new HashtagDoesNotExistException();
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}
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}
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