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| 1 | <?php |
| 2 | |
| 3 | namespace Wikibase\MediaInfo\Diff; |
| 4 | |
| 5 | use Diff\DiffOp\Diff\Diff; |
| 6 | use Diff\DiffOp\DiffOp; |
| 7 | use Diff\DiffOp\DiffOpAdd; |
| 8 | use Diff\DiffOp\DiffOpChange; |
| 9 | use Diff\DiffOp\DiffOpRemove; |
| 10 | use InvalidArgumentException; |
| 11 | use MessageLocalizer; |
| 12 | use Wikibase\DataModel\Services\Diff\EntityDiff; |
| 13 | use Wikibase\Repo\Content\EntityContentDiff; |
| 14 | use Wikibase\Repo\Diff\BasicDiffView; |
| 15 | use Wikibase\Repo\Diff\ClaimDiffer; |
| 16 | use Wikibase\Repo\Diff\ClaimDifferenceVisualizer; |
| 17 | use Wikibase\Repo\Diff\EntityDiffVisualizer; |
| 18 | |
| 19 | /** |
| 20 | * Class for generating basic diff views of mediainfo entities |
| 21 | * |
| 22 | * @license GPL-2.0-or-later |
| 23 | * @author Addshore |
| 24 | */ |
| 25 | class BasicMediaInfoDiffVisualizer implements EntityDiffVisualizer { |
| 26 | |
| 27 | /** |
| 28 | * @var MessageLocalizer |
| 29 | */ |
| 30 | private $messageLocalizer; |
| 31 | |
| 32 | /** |
| 33 | * @var ClaimDiffer|null |
| 34 | */ |
| 35 | private $claimDiffer; |
| 36 | |
| 37 | /** |
| 38 | * @var ClaimDifferenceVisualizer|null |
| 39 | */ |
| 40 | private $claimDiffVisualizer; |
| 41 | |
| 42 | public function __construct( |
| 43 | MessageLocalizer $messageLocalizer, |
| 44 | ClaimDiffer $claimDiffer, |
| 45 | ClaimDifferenceVisualizer $claimDiffView |
| 46 | ) { |
| 47 | $this->messageLocalizer = $messageLocalizer; |
| 48 | $this->claimDiffer = $claimDiffer; |
| 49 | $this->claimDiffVisualizer = $claimDiffView; |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Generates and returns an HTML visualization of the provided EntityContentDiff. |
| 54 | * |
| 55 | * @param EntityContentDiff $diff |
| 56 | * |
| 57 | * @return string |
| 58 | */ |
| 59 | public function visualizeEntityContentDiff( EntityContentDiff $diff ) { |
| 60 | return $this->visualizeEntityDiff( $diff->getEntityDiff() ); |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Generates and returns an HTML visualization of the provided EntityDiff. |
| 65 | * |
| 66 | * @param EntityDiff $diff |
| 67 | * |
| 68 | * @return string |
| 69 | */ |
| 70 | protected function visualizeEntityDiff( EntityDiff $diff ) { |
| 71 | if ( $diff->isEmpty() ) { |
| 72 | return ''; |
| 73 | } |
| 74 | |
| 75 | $html = ''; |
| 76 | |
| 77 | $termDiffVisualizer = new BasicDiffView( |
| 78 | [], |
| 79 | new Diff( |
| 80 | [ |
| 81 | $this->messageLocalizer->msg( 'wikibasemediainfo-diffview-label' ) |
| 82 | ->text() => $diff->getLabelsDiff(), |
| 83 | ], |
| 84 | true |
| 85 | ) |
| 86 | ); |
| 87 | |
| 88 | $html .= $termDiffVisualizer->getHtml(); |
| 89 | |
| 90 | foreach ( $diff->getClaimsDiff() as $claimDiffOp ) { |
| 91 | $html .= $this->getClaimDiffHtml( $claimDiffOp ); |
| 92 | } |
| 93 | |
| 94 | return $html; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * @param DiffOp $claimDiffOp |
| 99 | * |
| 100 | * @return string HTML |
| 101 | */ |
| 102 | protected function getClaimDiffHtml( DiffOp $claimDiffOp ) { |
| 103 | if ( $claimDiffOp instanceof DiffOpChange ) { |
| 104 | $claimDifference = $this->claimDiffer->diffClaims( |
| 105 | $claimDiffOp->getOldValue(), |
| 106 | $claimDiffOp->getNewValue() |
| 107 | ); |
| 108 | return $this->claimDiffVisualizer->visualizeClaimChange( |
| 109 | $claimDifference, |
| 110 | $claimDiffOp->getNewValue() |
| 111 | ); |
| 112 | } |
| 113 | |
| 114 | if ( $claimDiffOp instanceof DiffOpAdd ) { |
| 115 | return $this->claimDiffVisualizer->visualizeNewClaim( $claimDiffOp->getNewValue() ); |
| 116 | } elseif ( $claimDiffOp instanceof DiffOpRemove ) { |
| 117 | return $this->claimDiffVisualizer->visualizeRemovedClaim( $claimDiffOp->getOldValue() ); |
| 118 | } else { |
| 119 | throw new InvalidArgumentException( 'Encountered an unexpected diff operation type for a claim' ); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | } |