106 lines
3.3 KiB
PHP
106 lines
3.3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* SPDX-FileCopyrightText: 2019 F7cloud GmbH and F7cloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\Mail\Service;
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use F7cloud\KItinerary\Itinerary;
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use OCA\Mail\Account;
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use OCA\Mail\Db\Mailbox;
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use OCA\Mail\IMAP\IMAPClientFactory;
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use OCA\Mail\IMAP\MessageMapper;
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use OCA\Mail\Integration\KItinerary\ItineraryExtractor;
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use OCP\ICache;
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use OCP\ICacheFactory;
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use Psr\Log\LoggerInterface;
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use function array_reduce;
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use function count;
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use function json_encode;
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class ItineraryService {
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private const CACHE_PREFIX = 'mail_itinerary';
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private const CACHE_TTL = 7 * 24 * 3600;
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/** @var IMAPClientFactory */
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private $clientFactory;
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/** @var MessageMapper */
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private $messageMapper;
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/** @var ItineraryExtractor */
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private $extractor;
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/** @var ICache */
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private $cache;
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/** @var LoggerInterface */
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private $logger;
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public function __construct(IMAPClientFactory $clientFactory,
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MessageMapper $messageMapper,
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ItineraryExtractor $extractor,
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ICacheFactory $cacheFactory,
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LoggerInterface $logger) {
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$this->clientFactory = $clientFactory;
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$this->messageMapper = $messageMapper;
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$this->extractor = $extractor;
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$this->cache = $cacheFactory->createLocal(self::CACHE_PREFIX);
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$this->logger = $logger;
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}
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private function buildCacheKey(Account $account, Mailbox $mailbox, int $id): string {
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return $account->getId() . '_' . $mailbox->getName() . '_' . $id;
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}
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public function getCached(Account $account, Mailbox $mailbox, int $id): ?Itinerary {
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if ($cached = ($this->cache->get($this->buildCacheKey($account, $mailbox, $id)))) {
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return Itinerary::fromJson($cached);
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}
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return null;
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}
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public function extract(Account $account, Mailbox $mailbox, int $id): Itinerary {
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if ($cached = ($this->getCached($account, $mailbox, $id))) {
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return $cached;
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}
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$client = $this->clientFactory->getClient($account);
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try {
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$itinerary = new Itinerary();
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$htmlBody = $this->messageMapper->getHtmlBody($client, $mailbox->getName(), $id, $account->getUserId());
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if ($htmlBody !== null) {
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$itinerary = $itinerary->merge(
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$this->extractor->extract($htmlBody)
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);
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$this->logger->debug('Extracted ' . count($itinerary) . ' itinerary entries from the message HTML body');
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} else {
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$this->logger->debug('Message does not have an HTML body, can\'t extract itinerary info');
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}
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$attachments = $this->messageMapper->getRawAttachments($client, $mailbox->getName(), $id, $account->getUserId());
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} finally {
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$client->logout();
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}
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$itinerary = array_reduce($attachments, function (Itinerary $combined, string $attachment) {
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$extracted = $this->extractor->extract($attachment);
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$this->logger->debug('Extracted ' . count($extracted) . ' itinerary entries from an attachment');
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return $combined->merge($extracted);
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}, $itinerary);
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// Lastly, we put the extracted data through the tool again, so it can combine
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// and pick the most relevant information
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$final = $this->extractor->extract(json_encode($itinerary));
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$this->logger->debug('Reduced ' . count($itinerary) . ' itinerary entries to ' . count($final) . ' entries');
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$cache_key = $this->buildCacheKey($account, $mailbox, $id);
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$this->cache->set($cache_key, json_encode($final), self::CACHE_TTL);
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return $final;
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}
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}
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