<?php
/**
 * Renderer contract.
 *
 * @package FeedWeaver
 */

namespace FeedWeaver\Render;

defined( 'ABSPATH' ) || exit;

/**
 * Serialises a list of mapped items into a document.
 */
interface Renderer {

	/**
	 * Renders items.
	 *
	 * @param array<int,array<string,mixed>> $items Output of the mapping engine, one entry per item.
	 * @return string
	 */
	public function render( array $items ): string;

	/**
	 * HTTP Content-Type for the rendered document.
	 *
	 * @return string
	 */
	public function content_type(): string;
}