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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch; |
| 4 | |
| 5 | use MediaWiki\Extension\EventBus\Serializers\EventSerializer; |
| 6 | use MediaWiki\Extension\EventBus\Serializers\MediaWiki\PageEntitySerializer; |
| 7 | use MediaWiki\Page\ProperPageIdentity; |
| 8 | use MediaWiki\Page\WikiPage; |
| 9 | use MediaWiki\WikiMap\WikiMap; |
| 10 | |
| 11 | class EventBusWeightedTagSerializer { |
| 12 | public const SCHEMA = '/mediawiki/cirrussearch/page_weighted_tags_change/1.0.0'; |
| 13 | public const STREAM = 'mediawiki.cirrussearch.page_weighted_tags_change.v1'; |
| 14 | |
| 15 | private EventSerializer $eventSerializer; |
| 16 | private PageEntitySerializer $pageEntitySerializer; |
| 17 | private string $stream; |
| 18 | |
| 19 | /** |
| 20 | * @param EventSerializer $eventSerializer |
| 21 | * @param PageEntitySerializer $pageEntitySerializer |
| 22 | * @param string $stream |
| 23 | */ |
| 24 | public function __construct( |
| 25 | EventSerializer $eventSerializer, |
| 26 | PageEntitySerializer $pageEntitySerializer, |
| 27 | string $stream = self::STREAM |
| 28 | ) { |
| 29 | $this->eventSerializer = $eventSerializer; |
| 30 | $this->pageEntitySerializer = $pageEntitySerializer; |
| 31 | $this->stream = $stream; |
| 32 | } |
| 33 | |
| 34 | /** |
| 35 | * @return string |
| 36 | */ |
| 37 | public function getStream(): string { |
| 38 | return $this->stream; |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * @param WikiPage $wikiPage page to tag |
| 43 | * @param array $weightedTags `weighted_tags` payload, see schema |
| 44 | * @param bool|null $revBased `rev_based` flag |
| 45 | * @param string|null $dt event timestamp |
| 46 | * |
| 47 | * @return array encoded event |
| 48 | * @see self::SCHEMA |
| 49 | */ |
| 50 | public function toArray( WikiPage $wikiPage, array $weightedTags, ?bool $revBased = null, ?string $dt = null ): array { |
| 51 | $uri = $this->pageEntitySerializer->canonicalPageURL( $wikiPage ); |
| 52 | $page = $this->pageEntitySerializer->toArray( $wikiPage ); |
| 53 | return $this->eventSerializer->createEvent( |
| 54 | self::SCHEMA, |
| 55 | $this->stream, |
| 56 | $uri, |
| 57 | array_merge( $revBased === null ? [] : [ 'rev_based' => $revBased ], [ |
| 58 | 'dt' => EventSerializer::timestampToDt( $dt ), |
| 59 | 'wiki_id' => self::getWikiId( $wikiPage ), |
| 60 | 'page' => $page, |
| 61 | 'weighted_tags' => $weightedTags |
| 62 | ] ), |
| 63 | self::getWikiId( $wikiPage ) |
| 64 | ); |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * @param WikiPage $wikiPage |
| 69 | * @param array[] $set prefix => [ [ 'tag' => string ] | [ 'tag' => string, 'score' => int ] ] map |
| 70 | * @param bool|null $revBased `rev_based` flag |
| 71 | * @param string|null $dt event timestamp |
| 72 | * @return array |
| 73 | */ |
| 74 | public function toSetEvent( WikiPage $wikiPage, array $set, ?bool $revBased = null, ?string $dt = null ): array { |
| 75 | return $this->toArray( $wikiPage, [ 'set' => $set ], $revBased, $dt ); |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * @param WikiPage $wikiPage |
| 80 | * @param string[] $clear prefixes to be cleared |
| 81 | * @param bool|null $revBased `rev_based` flag |
| 82 | * @param string|null $dt event timestamp |
| 83 | * @return array |
| 84 | */ |
| 85 | public function toClearEvent( WikiPage $wikiPage, array $clear, ?bool $revBased = null, ?string $dt = null ): array { |
| 86 | return $this->toArray( $wikiPage, [ 'clear' => $clear ], $revBased, $dt ); |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Return the page's wikiId, or if that returns false, |
| 91 | * return WikiMap::getCurrentWikiId. |
| 92 | * |
| 93 | * @param ProperPageIdentity $page |
| 94 | * @return string |
| 95 | */ |
| 96 | private static function getWikiId( ProperPageIdentity $page ): string { |
| 97 | // Get the wikiId. page's getWikiId can return false. |
| 98 | // Fallback to global WikiMap. |
| 99 | return $page->getWikiId() ?: WikiMap::getCurrentWikiId(); |
| 100 | } |
| 101 | |
| 102 | } |