1 files changed, 60 insertions, 0 deletions
diff --git a/www/wiki/extensions/ModernTimeline/src/SlidePresenter/TemplateSlidePresenter.php b/www/wiki/extensions/ModernTimeline/src/SlidePresenter/TemplateSlidePresenter.php
new file mode 100644
index 00000000..09c821d5
--- /dev/null
+++ b/www/wiki/extensions/ModernTimeline/src/SlidePresenter/TemplateSlidePresenter.php
@@ -0,0 +1,60 @@
+<?php
+
+declare( strict_types = 1 );
+
+namespace ModernTimeline\SlidePresenter;
+
+use ModernTimeline\ResultFacade\PropertyValueCollection;
+use ModernTimeline\ResultFacade\Subject;
+use SMW\DataValueFactory;
+
+class TemplateSlidePresenter implements SlidePresenter {
+
+	private $templateName;
+
+	public function __construct( string $templateName ) {
+		$this->templateName = $templateName;
+	}
+
+	public function getText( Subject $subject ): string {
+		$parser = $this->getParser();
+
+		return $parser->recursiveTagParseFully(
+			( new TemplateSlidePresenter( $this->templateName ) )->getTemplateText( $subject )
+		);
+	}
+
+	private function getParser(): \Parser {
+		return $GLOBALS['wgParser'];
+	}
+
+	public function getTemplateText( Subject $subject ): string {
+		return '{{' . implode( '|', $this->getTemplateSegments( $subject ) ) . '}}';
+	}
+
+	private function getTemplateSegments( Subject $subject ): array {
+		return array_merge(
+			[
+				$this->templateName,
+				$this->parameter( 'title', $subject->getWikiPage()->getTitle()->getFullText() )
+			],
+			array_map(
+				function( PropertyValueCollection $pvc ) {
+					return $this->parameter(
+						$pvc->getPrintRequest()->getText( null ) ?? '',
+						$pvc->getDataItems() === [] ? '' : $this->dataItemToText( $pvc->getDataItems()[0] )
+					);
+				},
+				$subject->getPropertyValueCollections()
+			)
+		);
+	}
+
+	private function dataItemToText( \SMWDataItem $dataItem ): string {
+		return DataValueFactory::getInstance()->newDataValueByItem( $dataItem )->getLongHTMLText();
+	}
+
+	private function parameter( string $name, string $value ): string {
+		return $name . '=' . $value;
+	}
+}