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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\DiscussionTools; |
| 4 | |
| 5 | use MediaWiki\Extension\DiscussionTools\ThreadItem\DatabaseCommentItem; |
| 6 | use MediaWiki\Extension\DiscussionTools\ThreadItem\DatabaseHeadingItem; |
| 7 | use MediaWiki\Extension\DiscussionTools\ThreadItem\DatabaseThreadItem; |
| 8 | use MediaWiki\Extension\DiscussionTools\ThreadItem\ThreadItem; |
| 9 | use Wikimedia\Assert\Assert; |
| 10 | |
| 11 | /** |
| 12 | * Groups thread items (headings and comments) generated from database. |
| 13 | */ |
| 14 | class DatabaseThreadItemSet implements ThreadItemSet { |
| 15 | |
| 16 | /** @var DatabaseThreadItem[] */ |
| 17 | private array $threadItems = []; |
| 18 | /** @var DatabaseCommentItem[] */ |
| 19 | private array $commentItems = []; |
| 20 | /** @var DatabaseThreadItem[][] */ |
| 21 | private array $threadItemsByName = []; |
| 22 | /** @var DatabaseThreadItem[] */ |
| 23 | private array $threadItemsById = []; |
| 24 | /** @var DatabaseHeadingItem[] */ |
| 25 | private array $threads = []; |
| 26 | |
| 27 | /** |
| 28 | * @inheritDoc |
| 29 | */ |
| 30 | public function addThreadItem( ThreadItem $item ) { |
| 31 | Assert::precondition( $item instanceof DatabaseThreadItem, 'Must be DatabaseThreadItem' ); |
| 32 | |
| 33 | $this->threadItems[] = $item; |
| 34 | if ( $item instanceof DatabaseCommentItem ) { |
| 35 | $this->commentItems[] = $item; |
| 36 | } |
| 37 | if ( $item instanceof DatabaseHeadingItem ) { |
| 38 | $this->threads[] = $item; |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * @inheritDoc |
| 44 | */ |
| 45 | public function isEmpty(): bool { |
| 46 | return !$this->threadItems; |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * @inheritDoc |
| 51 | */ |
| 52 | public function updateIdAndNameMaps( ThreadItem $item ) { |
| 53 | Assert::precondition( $item instanceof DatabaseThreadItem, 'Must be DatabaseThreadItem' ); |
| 54 | |
| 55 | $this->threadItemsByName[ $item->getName() ][] = $item; |
| 56 | |
| 57 | $this->threadItemsById[ $item->getId() ] = $item; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * @inheritDoc |
| 62 | * @return DatabaseThreadItem[] Thread items |
| 63 | */ |
| 64 | public function getThreadItems(): array { |
| 65 | return $this->threadItems; |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * @inheritDoc |
| 70 | * @return DatabaseCommentItem[] Comment items |
| 71 | */ |
| 72 | public function getCommentItems(): array { |
| 73 | return $this->commentItems; |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * @inheritDoc |
| 78 | * @return DatabaseThreadItem[] Thread items, empty array if not found |
| 79 | */ |
| 80 | public function findCommentsByName( string $name ): array { |
| 81 | return $this->threadItemsByName[$name] ?? []; |
| 82 | } |
| 83 | |
| 84 | /** |
| 85 | * @inheritDoc |
| 86 | * @return DatabaseThreadItem|null Thread item, null if not found |
| 87 | */ |
| 88 | public function findCommentById( string $id ): ?ThreadItem { |
| 89 | return $this->threadItemsById[$id] ?? null; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * @inheritDoc |
| 94 | * @return DatabaseHeadingItem[] Tree structure of comments, top-level items are the headings. |
| 95 | */ |
| 96 | public function getThreads(): array { |
| 97 | return $this->threads; |
| 98 | } |
| 99 | |
| 100 | /** |
| 101 | * @inheritDoc |
| 102 | * @return DatabaseHeadingItem[] Tree structure of comments, top-level items are the headings. |
| 103 | */ |
| 104 | public function getThreadsStructured(): array { |
| 105 | return array_values( array_filter( $this->getThreads(), static function ( DatabaseThreadItem $item ) { |
| 106 | return $item->getParent() === null; |
| 107 | } ) ); |
| 108 | } |
| 109 | } |