<?php

namespace Advanced_Columns\Frontend;

use Advanced_Columns\Editor\Block;
use Advanced_Columns\Frontend\Styles\Contracts\FrontendStylesManagerInterface;

class FrontendManager
{
	private FrontendStylesManagerInterface $stylesManager;

	public function __construct( FrontendStylesManagerInterface $stylesManager )
	{
		$this->stylesManager = $stylesManager;
	}

	public function getStylesManager(): FrontendStylesManagerInterface
	{
		return $this->stylesManager;
	}

	/**
	 * Register hooks.
	 *
	 * @since 1.0.0
	 */
	public function registerHooks()
	{
		// add_filter( 'wp_insert_post_data', array( $this, 'consolidateUIDs' ) );
	}

	/**
	 * Consolidate block UIDs when saving a page.
	 *
	 * @since 1.0.0
	 * @param array $data The Post data.
	 * @return array
	 */
	public function consolidateUIDs( array $data )
	{
		if ( false === strpos( $data[ 'post_content' ], '<!-- wp:advanced-columns' ) ) {
			return $data;
		}

		$replacements = array(
			'/(<!-- wp:advanced-columns\/columns {)\\\"(?!(uid))/' => '<!-- wp:advanced-columns\/columns {\"uid\":\"%s\",\"',
			'/(<!-- wp:advanced-columns\/columns -->)/' => '<!-- wp:advanced-columns\/columns {\"uid\":\"%s\"} -->',
			'/(<!-- wp:advanced-columns\/columns \/-->)/' => '<!-- wp:advanced-columns\/columns {\"uid\":\"%s\"} /-->',
			'/(<!-- wp:advanced-columns\/column {)\\\"(?!(uid))/' => '<!-- wp:advanced-columns\/column {\"uid\":\"%s\",\"',
			'/(<!-- wp:advanced-columns\/column -->)/' => '<!-- wp:advanced-columns\/column {\"uid\":\"%s\"} -->',
			'/(<!-- wp:advanced-columns\/column \/-->)/' => '<!-- wp:advanced-columns\/column {\"uid\":\"%s\"} /-->',
			'/<!-- wp:advanced-columns\/columns {\\\"uid\\\":\\\"[0-9a-f]+\\\"/' => '<!-- wp:advanced-columns\/columns {\"uid\":\"%s\"',
			'/<!-- wp:advanced-columns\/column {\\\"uid\\\":\\\"[0-9a-f]+\\\"/' => '<!-- wp:advanced-columns\/column {\"uid\":\"%s\"',
			'/<!-- wp:advanced-columns\/columns {\\\"uid\\\":\\\"\\\"/' => '<!-- wp:advanced-columns\/columns {\"uid\":\"%s\"',
			'/<!-- wp:advanced-columns\/column {\\\"uid\\\":\\\"\\\"/' => '<!-- wp:advanced-columns\/column {\"uid\":\"%s\"',
		);

		foreach ( $replacements as $regex => $replacement ) {
			$data[ 'post_content' ] = preg_replace_callback( $regex, function( $match ) use ( $replacement ) {
				$uid = uniqid();

				return sprintf( $replacement, esc_attr( $uid ) );
			}, $data[ 'post_content' ] );
		}

		return $data;
	}
}