<?php

namespace AIbender\ArticleVault\Content;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class Shortcode {

	/**
	 * Paywall engine.
	 *
	 * @var PaywallEngine
	 */
	private PaywallEngine $engine;

	/**
	 * Constructor.
	 */
	public function __construct(
		PaywallEngine $engine
	) {

		$this->engine = $engine;

	}

	/**
	 * Register shortcode.
	 */
	public function register(): void {

		add_shortcode(
			'articlevault',
			array( $this, 'render' )
		);

	}

	/**
	 * Render shortcode content.
	 */
	public function render( $atts, $content = null ): string {

		$content = (string) $content;

		// Process nested shortcodes.
		$content = do_shortcode( $content );

		// Sanitize user-provided content before passing it to the paywall.
		$content = wp_kses_post( $content );

		return $this->engine->protect( $content );

	}

}