181 lines
6.1 KiB
PHP
181 lines
6.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Entity\ApiGenerator;
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use App\Entity;
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use GuzzleHttp\Psr7\Uri;
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use NowPlaying\Result\CurrentSong;
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use NowPlaying\Result\Result;
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use Psr\EventDispatcher\EventDispatcherInterface;
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use Psr\Http\Message\UriInterface;
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class NowPlayingApiGenerator
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{
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public function __construct(
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protected SongApiGenerator $songApiGenerator,
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protected SongHistoryApiGenerator $songHistoryApiGenerator,
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protected StationApiGenerator $stationApiGenerator,
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protected StationQueueApiGenerator $stationQueueApiGenerator,
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protected Entity\Repository\SongHistoryRepository $historyRepo,
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protected Entity\Repository\StationQueueRepository $queueRepo,
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protected Entity\Repository\StationStreamerBroadcastRepository $broadcastRepo,
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protected EventDispatcherInterface $eventDispatcher
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) {
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}
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public function __invoke(
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Entity\Station $station,
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Result $npResult
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): Entity\Api\NowPlaying\NowPlaying {
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$baseUri = new Uri('');
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if (empty($npResult->currentSong->text)) {
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return $this->offlineApi($station, $baseUri);
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}
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$npOld = $station->getNowplaying();
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$np = new Entity\Api\NowPlaying\NowPlaying();
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$np->is_online = $npResult->meta->online;
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$np->station = ($this->stationApiGenerator)($station, $baseUri);
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$np->listeners = new Entity\Api\NowPlaying\Listeners(
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total: $npResult->listeners->total,
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unique: $npResult->listeners->unique
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);
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// Pull from current NP data if song details haven't changed .
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if (
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$npOld instanceof Entity\Api\NowPlaying\NowPlaying
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&& $this->tracksMatch($npResult->currentSong, $npOld->now_playing?->song->id)
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) {
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$previousHistory = $this->historyRepo->getCurrent($station);
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if (null === $previousHistory) {
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$previousHistory = ($npOld->now_playing?->song)
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? Entity\Song::createFromApiSong($npOld->now_playing->song)
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: Entity\Song::createOffline();
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}
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$sh_obj = $this->historyRepo->register($previousHistory, $station, $np);
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$np->song_history = $npOld->song_history;
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} else {
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// SongHistory registration must ALWAYS come before the history/nextsong calls
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// otherwise they will not have up-to-date database info!
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$sh_obj = $this->historyRepo->register(
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Entity\Song::createFromNowPlayingSong($npResult->currentSong),
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$station,
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$np
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);
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$np->song_history = $this->songHistoryApiGenerator->fromArray(
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$this->historyRepo->getVisibleHistory($station),
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$baseUri,
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true
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);
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}
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$nextVisibleSong = $this->queueRepo->getNextVisible($station);
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if (null === $nextVisibleSong) {
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$np->playing_next = $npOld->playing_next ?? null;
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} else {
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$np->playing_next = ($this->stationQueueApiGenerator)(
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$nextVisibleSong,
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$baseUri,
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true
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);
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}
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// Detect and report live DJ status
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if ($station->getIsStreamerLive()) {
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$current_streamer = $station->getCurrentStreamer();
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$streamer_name = ($current_streamer instanceof Entity\StationStreamer)
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? $current_streamer->getDisplayName()
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: 'Live DJ';
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$broadcastStart = $this->broadcastRepo->getLatestBroadcast($station)?->getTimestampStart();
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$np->live = new Entity\Api\NowPlaying\Live(true, $streamer_name, $broadcastStart);
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} else {
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$np->live = new Entity\Api\NowPlaying\Live(false);
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}
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$apiSongHistory = ($this->songHistoryApiGenerator)($sh_obj, $baseUri, true);
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$apiCurrentSong = new Entity\Api\NowPlaying\CurrentSong();
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$apiCurrentSong->fromParentObject($apiSongHistory);
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$np->now_playing = $apiCurrentSong;
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$np->update();
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return $np;
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}
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/**
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* If a station doesn't already have a cached "Now Playing", generate a blank one.
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* This is useful for situations that *require* a valid NowPlaying API model, like
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* Vue initial data structures.
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*
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* @param Entity\Station $station
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* @param UriInterface|null $baseUri
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*
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*/
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public function currentOrEmpty(
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Entity\Station $station,
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?UriInterface $baseUri = null
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): Entity\Api\NowPlaying\NowPlaying {
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$np = $station->getNowplaying();
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return $np ?? $this->offlineApi($station, $baseUri);
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}
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protected function offlineApi(
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Entity\Station $station,
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?UriInterface $baseUri = null
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): Entity\Api\NowPlaying\NowPlaying {
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$np = new Entity\Api\NowPlaying\NowPlaying();
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$np->station = ($this->stationApiGenerator)($station, $baseUri);
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$np->listeners = new Entity\Api\NowPlaying\Listeners();
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$songObj = Entity\Song::createOffline();
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$offlineApiNowPlaying = new Entity\Api\NowPlaying\CurrentSong();
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$offlineApiNowPlaying->sh_id = 0;
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$offlineApiNowPlaying->song = ($this->songApiGenerator)(
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$songObj,
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$station,
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$baseUri
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);
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$np->now_playing = $offlineApiNowPlaying;
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$np->song_history = $this->songHistoryApiGenerator->fromArray(
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$this->historyRepo->getVisibleHistory($station),
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$baseUri,
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true
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);
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$nextVisible = $this->queueRepo->getNextVisible($station);
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if ($nextVisible instanceof Entity\StationQueue) {
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$np->playing_next = ($this->stationQueueApiGenerator)(
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$nextVisible,
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$baseUri,
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true
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);
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}
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$np->live = new Entity\Api\NowPlaying\Live(false);
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$np->update();
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return $np;
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}
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protected function tracksMatch(
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Entity\Song|array|string|CurrentSong $currentSong,
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?string $oldSongId
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): bool {
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$current_song_hash = Entity\Song::getSongHash($currentSong);
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return (0 === strcmp($current_song_hash, $oldSongId ?? ''));
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}
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}
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