MoveTranslatableBundleMaintenanceScript.php
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MoveTranslatableBundleMaintenanceScript.php
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	<?php
	declare( strict_types = 1 );

	namespace MediaWiki\Extension\Translate\PageTranslation;

	use Closure;
	use MediaWiki\Context\RequestContext;
	use MediaWiki\Extension\Translate\Services;
	use MediaWiki\Extension\Translate\Utilities\BaseMaintenanceScript;
	use MediaWiki\Language\FormatterFactory;
	use MediaWiki\MediaWikiServices;
	use MediaWiki\Message\Message;
	use MediaWiki\Status\Status;
	use MediaWiki\Title\MalformedTitleException;
	use MediaWiki\Title\Title;
	use MediaWiki\Title\TitleParser;
	use SplObjectStorage;

	class MoveTranslatableBundleMaintenanceScript extends BaseMaintenanceScript {
	private TranslatableBundleMover $bundleMover;
	private TitleParser $titleParser;
	private FormatterFactory $formatterFactory;

	public function __construct() {
	parent::__construct();
	$this->addDescription( 'Review and move translatable bundles including their subpages' );

	$this->addArg(
	'current-page',
	' Current name of the page representing a translatable bundle',
	self::REQUIRED
	);

	$this->addArg(
	'new-page',
	'New translatable bundle name',
	self::REQUIRED
	);

	$this->addArg(
	'user',
	'User performing the move',
	self::REQUIRED
	);

	$this->addOption(
	'reason',
	'Reason for moving the translatable bundle',
	self::OPTIONAL,
	self::HAS_ARG
	);

	$this->addOption(
	'skip-redirect',
	'Skip leaving a redirect behind for translatable bundle, subpages and related talk pages',
	);

	$this->addOption(
	'skip-subpages',
	'Skip moving subpages under the current page'
	);

	$this->addOption(
	'skip-talkpages',
	'Skip moving talk pages under pages being moved'
	);

	$this->requireExtension( 'Translate' );
	}

	/** @inheritDoc */
	public function execute() {
	$this->bundleMover = Services::getInstance()->getTranslatableBundleMover();

	$mwService = MediaWikiServices::getInstance();
	$this->titleParser = $mwService->getTitleParser();
	$this->formatterFactory = $mwService->getFormatterFactory();

	$currentBundleName = $this->getArg( 0 );
	$newBundleName = $this->getArg( 1 );
	$username = $this->getArg( 2 );
	$reason = $this->getOption( 'reason', '' );
	$leaveRedirect = !$this->hasOption( 'skip-redirect' );
	$moveSubpages = !$this->hasOption( 'skip-subpages' );
	$moveTalkpages = !$this->hasOption( 'skip-talkpages' );

	$userFactory = $mwService->getUserFactory();
	$user = $userFactory->newFromName( $username );

	if ( $user === null \|\| !$user->isRegistered() ) {
	$this->fatalError( "User $username does not exist." );
	}

	$outputMsg = "Check if '$currentBundleName' can be moved to '$newBundleName'";
	$subpageMsg = 'excluding subpages';
	if ( $moveSubpages ) {
	$subpageMsg = 'including subpages';
	}

	$talkpageMsg = 'excluding talkpages';
	if ( $moveTalkpages ) {
	$talkpageMsg = 'including talkpages';
	}

	$leaveRedirectMsg = 'without leaving redirects';
	if ( $leaveRedirect ) {
	$leaveRedirectMsg = 'leaving redirects';
	}

	$this->output( "$outputMsg ($subpageMsg; $talkpageMsg; $leaveRedirectMsg)\n" );

	try {
	$currentTitle = $this->getTitleFromInput( $currentBundleName ?? '' );
	$newTitle = $this->getTitleFromInput( $newBundleName ?? '' );
	} catch ( MalformedTitleException $e ) {
	$this->error( 'Invalid title: current-bundle or new-bundle' );
	$this->fatalError( $e->getMessageObject()->text() );
	}

	// When moving translatable bundles from script, remove all limits on the number of
	// pages that can be moved
	$this->bundleMover->disablePageMoveLimit();
	try {
	$pageCollection = $this->bundleMover->getPageMoveCollection(
	$currentTitle,
	$newTitle,
	$user,
	$reason,
	$moveSubpages,
	$moveTalkpages,
	$leaveRedirect
	);
	} catch ( ImpossiblePageMove $e ) {
	$fatalErrorMsg = $this->parseErrorMessage( $e->getBlockers() );
	$this->fatalError( $fatalErrorMsg );
	}

	$this->displayPagesToMove( $pageCollection, $leaveRedirect );

	$haveConfirmation = $this->getConfirmation();
	if ( !$haveConfirmation ) {
	$this->output( "Exiting...\n" );
	return;
	}

	$this->output( "Starting page move\n" );
	$pagesToMove = $pageCollection->getListOfPages();
	$pagesToRedirect = $pageCollection->getListOfPagesToRedirect();

	$this->bundleMover->moveSynchronously(
	$currentTitle,
	$newTitle,
	$pagesToMove,
	$pagesToRedirect,
	$user,
	$reason,
	Closure::fromCallable( [ $this, 'progressCallback' ] )
	);

	$this->logSeparator();
	$this->output( "Finished moving '$currentBundleName' to '$newBundleName' $subpageMsg\n" );
	}

	private function parseErrorMessage( SplObjectStorage $errors ): string {
	$errorMsg = wfMessage( 'pt-movepage-blockers', count( $errors ) )->text() . "\n";
	foreach ( $errors as $title ) {
	$titleText = $title->getPrefixedText();
	$errorMsg .= "$titleText\n";
	$errorMsg .= $errors[ $title ]->getWikiText( false, 'pt-movepage-error-placeholder', 'en' );
	$errorMsg .= "\n";
	}

	return $errorMsg;
	}

	private function progressCallback( Title $previous, Title $new, Status $status, int $total, int $processed ): void {
	$previousTitleText = $previous->getPrefixedText();
	$newTitleText = $new->getPrefixedText();
	$paddedProcessed = str_pad( (string)$processed, strlen( (string)$total ), ' ', STR_PAD_LEFT );
	$progressCounter = "($paddedProcessed/$total)";

	if ( $status->isOK() ) {
	$this->output( "$progressCounter $previousTitleText --> $newTitleText\n" );
	} else {
	$reason = $this->formatterFactory
	->getStatusFormatter( RequestContext::getMain() )
	->getWikiText( $status );
	$this->output( "$progressCounter Failed to move $previousTitleText to $newTitleText\n" );
	$this->output( "\tReason: $reason\n" );
	}
	}

	private function displayPagesToMove( PageMoveCollection $pageCollection, bool $leaveRedirect ): void {
	$infoMessage = "\nThe following pages will be moved:\n";
	$count = 0;
	$subpagesCount = 0;
	$talkpagesCount = 0;

	/** @var PageMoveOperation[][] */
	$pagesToMove = [
	'pt-movepage-list-source' => [ $pageCollection->getTranslatablePage() ],
	'pt-movepage-list-translation' => $pageCollection->getTranslationPagesPair(),
	'pt-movepage-list-section' => $pageCollection->getUnitPagesPair()
	];

	$subpages = $pageCollection->getSubpagesPair();
	if ( $subpages ) {
	$pagesToMove[ 'pt-movepage-list-other'] = $subpages;
	}

	foreach ( $pagesToMove as $type => $pages ) {
	$lines = [];
	$infoMessage .= $this->getSectionHeader( $type, $pages, $leaveRedirect );
	if ( !count( $pages ) ) {
	continue;
	}

	foreach ( $pages as $pagePairs ) {
	$count++;

	if ( $type === 'pt-movepage-list-other' ) {
	$subpagesCount++;
	}

	$old = $pagePairs->getOldTitle();
	$new = $pagePairs->getNewTitle();

	if ( $new ) {
	$line = '* ' . $old->getPrefixedText() . ' → ' . $new->getPrefixedText();
	if ( $pagePairs->hasTalkpage() ) {
	$count++;
	$talkpagesCount++;
	$line .= ' ' . $this->message( 'pt-movepage-talkpage-exists' )->text();
	}

	$lines[] = $line;
	}
	}

	$infoMessage .= implode( "\n", $lines ) . "\n";
	}

	$translatableSubpages = $pageCollection->getTranslatableSubpages();
	$infoMessage .= $this->getSectionHeader(
	'pt-movepage-list-translatable', $translatableSubpages, $leaveRedirect
	);

	if ( $translatableSubpages ) {
	$lines = [];
	$infoMessage .= $this->message( 'pt-movepage-list-translatable-note' )->text() . "\n";
	foreach ( $translatableSubpages as $page ) {
	$lines[] = '* ' . $page->getPrefixedText();
	}

	$infoMessage .= implode( "\n", $lines ) . "\n";
	}

	$nonMovableSubpages = $pageCollection->getNonMovableSubpages();
	if ( $nonMovableSubpages ) {
	$lines = [];
	$infoMessage .= $this->getSectionHeader(
	'pt-movepage-list-nonmovable', $nonMovableSubpages, $leaveRedirect
	);
	$infoMessage .= $this->message( 'pt-movepage-list-nonmovable-note' )
	->numParams( count( $nonMovableSubpages ) )->text() . "\n";
	foreach ( $nonMovableSubpages as $page => $status ) {
	$invalidityReason = $this->formatterFactory
	->getStatusFormatter( RequestContext::getMain() )
	->getWikiText( $status );
	$lines[] = '* ' . $page . ' (' . str_replace( "\n", " ", $invalidityReason ) . ')';
	}

	$infoMessage .= implode( "\n", $lines ) . "\n";
	}

	$this->output( $infoMessage );

	$this->logSeparator();
	$this->output(
	$this->message( 'pt-movepage-list-count' )
	->numParams( $count, $subpagesCount, $talkpagesCount )
	->text() . "\n"
	);
	$this->logSeparator();
	$this->output( "\n" );
	}

	private function getSectionHeader( string $type, array $pages, bool $leaveRedirect ): string {
	$infoMessage = $this->getSeparator();
	$pageCount = count( $pages );
	$shouldRedirect = TranslatableBundleMover::shouldLeaveRedirect( $type, $leaveRedirect );

	// $type can be: pt-movepage-list-source, pt-movepage-list-translation, pt-movepage-list-section
	// pt-movepage-list-other
	$infoMessage .= $this->message( $type )->numParams( $pageCount )->text() . ' ';

	if ( $shouldRedirect ) {
	$infoMessage .= '(leave redirect)';
	}

	$infoMessage .= "\n\n";

	if ( !$pageCount ) {
	$infoMessage .= $this->message( 'pt-movepage-list-no-pages' )->text() . "\n";
	}

	return $infoMessage;
	}

	private function getConfirmation(): bool {
	$line = self::readconsole( 'Type "MOVE" to begin the move operation: ' );
	return strtolower( $line ) === 'move';
	}

	private function getSeparator( int $width = 15 ): string {
	return str_repeat( '-', $width ) . "\n";
	}

	private function logSeparator( int $width = 15 ): void {
	$this->output( $this->getSeparator( $width ) );
	}

	private function message( string $key ): Message {
	return ( new Message( $key ) )->inLanguage( 'en' );
	}

	private function getTitleFromInput( string $pageName ): Title {
	$titleValue = $this->titleParser->parseTitle( $pageName );
	return Title::newFromLinkTarget( $titleValue );
	}
	}

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