Chris@0: <?php
Chris@0: namespace Consolidation\OutputFormatters\StructuredData;
Chris@0: 
Chris@0: use Consolidation\OutputFormatters\Options\FormatterOptions;
Chris@0: 
Chris@0: trait RenderCellCollectionTrait
Chris@0: {
Chris@0: 
Chris@0:     /** @var RenderCellInterface[] */
Chris@0:     protected $rendererList = [
Chris@0:         RenderCellCollectionInterface::PRIORITY_FIRST => [],
Chris@0:         RenderCellCollectionInterface::PRIORITY_NORMAL => [],
Chris@0:         RenderCellCollectionInterface::PRIORITY_FALLBACK => [],
Chris@0:     ];
Chris@0: 
Chris@0:     /**
Chris@0:      * Add a renderer
Chris@0:      *
Chris@0:      * @return $this
Chris@0:      */
Chris@0:     public function addRenderer(RenderCellInterface $renderer, $priority = RenderCellCollectionInterface::PRIORITY_NORMAL)
Chris@0:     {
Chris@0:         $this->rendererList[$priority][] = $renderer;
Chris@0:         return $this;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Add a callable as a renderer
Chris@0:      *
Chris@0:      * @return $this
Chris@0:      */
Chris@0:     public function addRendererFunction(callable $rendererFn, $priority = RenderCellCollectionInterface::PRIORITY_NORMAL)
Chris@0:     {
Chris@0:         $renderer = new CallableRenderer($rendererFn);
Chris@0:         return $this->addRenderer($renderer, $priority);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function renderCell($key, $cellData, FormatterOptions $options, $rowData)
Chris@0:     {
Chris@0:         $flattenedRendererList = array_reduce(
Chris@0:             $this->rendererList,
Chris@0:             function ($carry, $item) {
Chris@0:                 return array_merge($carry, $item);
Chris@0:             },
Chris@0:             []
Chris@0:         );
Chris@0: 
Chris@0:         foreach ($flattenedRendererList as $renderer) {
Chris@0:             $cellData = $renderer->renderCell($key, $cellData, $options, $rowData);
Chris@0:             if (is_string($cellData)) {
Chris@0:                 return $cellData;
Chris@0:             }
Chris@0:         }
Chris@0:         return $cellData;
Chris@0:     }
Chris@0: }