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<?php
/**
* Nextcloud - News
*
* This file is licensed under the Affero General Public License version 3 or
* later. See the COPYING file.
*
* @author Marco Nassabain <marco.nassabain@hotmail.com>
*/
namespace OCA\News\Service;
use \OCA\News\Db\Item;
use \OCA\News\Db\Feed;
use \Psr\Log\LoggerInterface;
use OCP\IURLGenerator;
use OCP\IUserManager;
use \OCP\IL10N;
use OCA\News\Service\Exceptions\ServiceNotFoundException;
use OCP\AppFramework\Db\DoesNotExistException;
/**
* Class ShareService
*
* @package OCA\News\Service
*/
class ShareService
{
/**
* Items service.
*
* @var ItemServiceV2
*/
protected $itemService;
/**
* Feeds service.
*
* @var FeedServiceV2
*/
protected $feedService;
/**
* @var LoggerInterface
*/
protected $logger;
/**
* @var IURLGenerator
*/
private $urlGenerator;
/**
* @var IUserManager
*/
private $userManager;
/**
* @var IL10N
*/
private $l10n;
/**
* ShareService constructor
*
* @param FeedServiceV2 $feedService Service for feeds
* @param ItemServiceV2 $itemService Service to manage items
* @param IURLGenerator $urlGenerator URL Generator
* @param IUserManager $userManager User Manager
* @param IL10N $l10n Localization interface
* @param LoggerInterface $logger Logger
*/
public function __construct(
FeedServiceV2 $feedService,
ItemServiceV2 $itemService,
IURLGenerator $urlGenerator,
IUserManager $userManager,
IL10N $l10n,
LoggerInterface $logger
) {
$this->itemService = $itemService;
$this->feedService = $feedService;
$this->urlGenerator = $urlGenerator;
$this->userManager = $userManager;
$this->l10n = $l10n;
$this->logger = $logger;
}
/**
* Share an item with a user
*
* @param string $userId ID of user sharing the item
* @param int $itemId Item ID
* @param string $shareRecipientId ID of user to share with
*
* Sharing by copying - the item is duplicated, and the 'sharedBy'
* field is filled accordingly.
* The item is then placed in a dummy feed reserved for items
* shared with the user
*
* @return Item Shared item
* @throws ServiceNotFoundException|ServiceConflictException
*/
public function shareItemWithUser(string $userId, int $itemId, string $shareRecipientId)
{
// Find item to share
$item = $this->itemService->find($userId, $itemId);
// Duplicate item & initialize fields
$sharedItem = clone $item;
$sharedItem->setId(null);
$sharedItem->setUnread(true);
$sharedItem->setStarred(false);
$sharedItem->setSharedBy($userId);
// Get 'shared with me' dummy feed
$feedUrl = $this->urlGenerator->getBaseUrl() . '/news/sharedwithme';
$feed = $this->feedService->findByUrl($shareRecipientId, $feedUrl);
if (is_null($feed)) {
$feed = new Feed();
$feed->setUserId($shareRecipientId)
->setUrlHash(md5($feedUrl))
->setLink($feedUrl)
->setUrl($feedUrl)
->setTitle($this->l10n->t('Shared with me'))
->setAdded(time())
->setFolderId(null)
->setPreventUpdate(true);
$feed = $this->feedService->insert($feed);
}
$sharedItem->setFeedId($feed->getId());
return $this->itemService->insertOrUpdate($sharedItem);
}
/**
* Map sharers display names to shared items.
*
* Loops through an array of news items. For all shared items, the function
* fetches the sharers display name and adds it into the item.
*
* @param Item[] Array containing items that are shared or not
* @return Item[]
*/
public function mapSharedByDisplayNames(array $items): array
{
foreach ($items as $item) {
$sharedBy = $item->getSharedBy();
if (!is_null($sharedBy)) {
$user = $this->userManager->get($sharedBy);
if (!is_null($user)) {
$item->setSharedByDisplayName($user->getDisplayName());
}
}
}
return $items;
}
}
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