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<?php declare(strict_types=1); |
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/** |
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* ownCloud - Music app |
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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 Pauli Järvinen <[email protected]> |
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* @copyright Pauli Järvinen 2018 - 2023 |
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*/ |
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namespace OCA\Music\BusinessLayer; |
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use OCA\Music\AppFramework\Core\Logger; |
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use OCA\Music\Utility\CoverHelper; |
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use OCA\Music\Utility\Util; |
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use OCP\IL10N; |
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use OCP\IURLGenerator; |
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class Library { |
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private $albumBusinessLayer; |
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private $artistBusinessLayer; |
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private $trackBusinessLayer; |
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private $coverHelper; |
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private $urlGenerator; |
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private $l10n; |
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private $logger; |
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public function __construct( |
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AlbumBusinessLayer $albumBusinessLayer, |
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ArtistBusinessLayer $artistBusinessLayer, |
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TrackBusinessLayer $trackBusinessLayer, |
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CoverHelper $coverHelper, |
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IURLGenerator $urlGenerator, |
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IL10N $l10n, |
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Logger $logger) { |
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$this->albumBusinessLayer = $albumBusinessLayer; |
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$this->artistBusinessLayer = $artistBusinessLayer; |
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$this->trackBusinessLayer = $trackBusinessLayer; |
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$this->coverHelper = $coverHelper; |
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$this->urlGenerator = $urlGenerator; |
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$this->l10n = $l10n; |
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$this->logger = $logger; |
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} |
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public function getTracksAlbumsAndArtists($userId) { |
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// Get all the entities from the DB first. The order of queries is important if we are in |
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// the middle of a scanning process: we don't want to get tracks which do not yet have |
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// an album entry or albums which do not yet have artist entry. |
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$tracks = $this->trackBusinessLayer->findAll($userId); |
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$albums = $this->albumBusinessLayer->findAll($userId); |
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$artists = $this->artistBusinessLayer->findAll($userId); |
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$artistsById = Util::createIdLookupTable($artists); |
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$albumsById = Util::createIdLookupTable($albums); |
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foreach ($tracks as $idx => $track) { |
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$album = $albumsById[$track->getAlbumId()]; |
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if (empty($album)) { |
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$this->logger->log("DB error on track {$track->id} '{$track->title}': ". |
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"album with ID {$track->albumId} not found. Skipping the track.", 'warn'); |
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unset($tracks[$idx]); |
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} else { |
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$track->setAlbum($album); |
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} |
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} |
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return [ |
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'tracks' => $tracks, |
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'albums' => $albumsById, |
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'artists' => $artistsById |
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]; |
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} |
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public function toCollection($userId) { |
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$entities = $this->getTracksAlbumsAndArtists($userId); |
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$coverHashes = $this->coverHelper->getAllCachedAlbumCoverHashes($userId); |
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// Create a multi-level dictionary of tracks where each track can be found |
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// by addressing like $trackDict[artistId][albumId][ordinal]. The tracks are |
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// in the dictionary in the "toCollection" format. |
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$trackDict = []; |
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foreach ($entities['tracks'] as $track) { |
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$trackDict[$track->getAlbum()->getAlbumArtistId()][$track->getAlbumId()][] |
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= $track->toCollection(); |
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} |
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// Then create the actual collection by iterating over the previusly created |
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// dictionary and creating artists and albums in the "toCollection" format. |
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$collection = []; |
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foreach ($trackDict as $artistId => $artistTracksByAlbum) { |
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$artistAlbums = []; |
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foreach ($artistTracksByAlbum as $albumId => $albumTracks) { |
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$coverHash = $coverHashes[$albumId] ?? null; |
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$artistAlbums[] = $entities['albums'][$albumId]->toCollection( |
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$this->urlGenerator, $this->l10n, $coverHash, $albumTracks); |
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} |
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$collection[] = $entities['artists'][$artistId]->toCollection($this->l10n, $artistAlbums); |
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} |
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// Add the artists with no own albums to the collection |
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foreach ($entities['artists'] as $artist) { |
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if (!isset($trackDict[$artist->getId()])) { |
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$collection[] = $artist->toCollection($this->l10n, []); |
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} |
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} |
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return $collection; |
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} |
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/** |
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* Get the timestamp of the latest insert operation on the library |
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*/ |
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public function latestInsertTime(string $userId) : \DateTime { |
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return \max( |
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$this->artistBusinessLayer->latestInsertTime($userId), |
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$this->albumBusinessLayer->latestInsertTime($userId), |
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$this->trackBusinessLayer->latestInsertTime($userId) |
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); |
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} |
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/** |
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* Get the timestamp of the latest update operation on the library |
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*/ |
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public function latestUpdateTime(string $userId) : \DateTime { |
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return \max( |
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$this->artistBusinessLayer->latestUpdateTime($userId), |
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$this->albumBusinessLayer->latestUpdateTime($userId), |
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$this->trackBusinessLayer->latestUpdateTime($userId) |
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); |
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} |
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/** |
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* Inject tracks to the given albums. Sets also the album refence of each injected track. |
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* @param Album[] $albums input/output |
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*/ |
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public function injectTracksToAlbums(array &$albums, string $userId) : void { |
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$alBussLayer = $this->albumBusinessLayer; |
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$trBussLayer = $this->trackBusinessLayer; |
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if (\count($albums) < $alBussLayer::MAX_SQL_ARGS && \count($albums) < $alBussLayer->count($userId)) { |
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$tracks = $trBussLayer->findAllByAlbum(Util::extractIds($albums), $userId); |
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} else { |
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$tracks = $trBussLayer->findAll($userId); |
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} |
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$tracksPerAlbum = []; |
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foreach ($tracks as $track) { |
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$tracksPerAlbum[$track->getAlbumId()][] = $track; |
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} |
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foreach ($albums as &$album) { |
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$albumTracks = $tracksPerAlbum[$album->getId()] ?? []; |
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$album->setTracks($albumTracks); |
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foreach ($albumTracks as &$track) { |
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$track->setAlbum($album); |
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} |
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} |
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} |
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} |
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owncloud /
music
