<?php

namespace SureCartBlocks\Blocks;

use SureCartCore\Application\Application;

/**
 * Provide general block-related functionality.
 */
class BlockService {
	/**
	 * View engine.
	 *
	 * @var Application
	 */
	protected $app = null;

	/**
	 * Constructor.
	 *
	 * @param Application $app Application Instance.
	 */
	public function __construct( Application $app ) {
		$this->app = $app;
	}

	/**
	 * Render a block using a template
	 *
	 * @param  string|string[]      $views A view or array of views.
	 * @param  array<string, mixed> $context Context to send.
	 * @return string View html output.
	 */
	public function render( $views, $context = [] ) {
		return apply_filters( 'surecart_block_output', $this->app->views()->make( $views )->with( $context )->toString() );
	}

	/**
	 * Find all blocks and nested blocks by name.
	 *
	 * @param  string $type Block item to filter by.
	 * @param  string $name Block name.
	 * @param   array  $blocks Array of blocks.
	 * @return array
	 */
	public function filterBy( $type, $name, $blocks ) {
		$found_blocks = [];
		$blocks       = (array) $blocks;
		foreach ( $blocks as $block ) {
			if ( $name === $block[ $type ] ) {
				$found_blocks[] = $block;
			}
			if ( ! empty( $block['innerBlocks'] ) ) {
				$found_blocks = array_merge( $found_blocks, $this->filterBy( $type, $name, $block['innerBlocks'] ) );
			}
		}
		return $found_blocks;
	}
}