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| 1 | <?php |
| 2 | |
| 3 | namespace Wikibase\MediaInfo\DataModel\Services\Diff; |
| 4 | |
| 5 | use Diff\Differ\MapDiffer; |
| 6 | use InvalidArgumentException; |
| 7 | use Wikibase\DataModel\Entity\EntityDocument; |
| 8 | use Wikibase\DataModel\Services\Diff\EntityDiff; |
| 9 | use Wikibase\DataModel\Services\Diff\EntityDifferStrategy; |
| 10 | use Wikibase\DataModel\Services\Diff\StatementListDiffer; |
| 11 | use Wikibase\MediaInfo\DataModel\MediaInfo; |
| 12 | |
| 13 | /** |
| 14 | * @since 0.1 |
| 15 | * |
| 16 | * @license GPL-2.0-or-later |
| 17 | * @author Jeroen De Dauw < jeroendedauw@gmail.com > |
| 18 | * @author Thiemo Kreuz |
| 19 | */ |
| 20 | class MediaInfoDiffer implements EntityDifferStrategy { |
| 21 | |
| 22 | /** |
| 23 | * @var MapDiffer |
| 24 | */ |
| 25 | private $recursiveMapDiffer; |
| 26 | |
| 27 | /** |
| 28 | * @var StatementListDiffer |
| 29 | */ |
| 30 | private $statementListDiffer; |
| 31 | |
| 32 | public function __construct() { |
| 33 | $this->recursiveMapDiffer = new MapDiffer( true ); |
| 34 | $this->statementListDiffer = new StatementListDiffer(); |
| 35 | } |
| 36 | |
| 37 | /** |
| 38 | * @param string $entityType |
| 39 | * |
| 40 | * @return bool |
| 41 | */ |
| 42 | public function canDiffEntityType( $entityType ) { |
| 43 | return $entityType === 'mediainfo'; |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * @param EntityDocument $from |
| 48 | * @param EntityDocument $to |
| 49 | * |
| 50 | * @return EntityDiff |
| 51 | * @throws InvalidArgumentException |
| 52 | */ |
| 53 | public function diffEntities( EntityDocument $from, EntityDocument $to ) { |
| 54 | $this->assertIsMediaInfo( $from ); |
| 55 | $this->assertIsMediaInfo( $to ); |
| 56 | |
| 57 | return $this->diffMediaInfos( $from, $to ); |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * @param EntityDocument $mediaInfo |
| 62 | * @phan-assert MediaInfo $mediaInfo |
| 63 | */ |
| 64 | private function assertIsMediaInfo( EntityDocument $mediaInfo ) { |
| 65 | if ( !( $mediaInfo instanceof MediaInfo ) ) { |
| 66 | throw new InvalidArgumentException( '$mediaInfo must be an instance of MediaInfo' ); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | public function diffMediaInfos( MediaInfo $from, MediaInfo $to ) { |
| 71 | $diffOps = $this->recursiveMapDiffer->doDiff( |
| 72 | $this->toDiffArray( $from ), |
| 73 | $this->toDiffArray( $to ) |
| 74 | ); |
| 75 | |
| 76 | $diffOps['claim'] = $this->statementListDiffer->getDiff( |
| 77 | $from->getStatements(), |
| 78 | $to->getStatements() |
| 79 | ); |
| 80 | |
| 81 | return new EntityDiff( $diffOps ); |
| 82 | } |
| 83 | |
| 84 | private function toDiffArray( MediaInfo $mediaInfo ) { |
| 85 | $array = []; |
| 86 | |
| 87 | $array['label'] = $mediaInfo->getLabels()->toTextArray(); |
| 88 | $array['description'] = $mediaInfo->getDescriptions()->toTextArray(); |
| 89 | |
| 90 | return $array; |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * @param EntityDocument $entity |
| 95 | * |
| 96 | * @return EntityDiff |
| 97 | * @throws InvalidArgumentException |
| 98 | */ |
| 99 | public function getConstructionDiff( EntityDocument $entity ) { |
| 100 | $this->assertIsMediaInfo( $entity ); |
| 101 | return $this->diffEntities( new MediaInfo(), $entity ); |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * @param EntityDocument $entity |
| 106 | * |
| 107 | * @return EntityDiff |
| 108 | * @throws InvalidArgumentException |
| 109 | */ |
| 110 | public function getDestructionDiff( EntityDocument $entity ) { |
| 111 | $this->assertIsMediaInfo( $entity ); |
| 112 | return $this->diffEntities( $entity, new MediaInfo() ); |
| 113 | } |
| 114 | |
| 115 | } |