Migrate WP Bakery & Minti shortcodes to blocks

m2g.php

<?php

/**
 * Plugin Name:       Migrate 2 Gutenberg - DEV
 * Description:       Migrate old content into blocks
 * Version:           0.0.1
 * Requires at least: 6.8
 * Tested up to:      X.X.X
 * Author:            Django Doucet
 * Author URI:        https://mediaformat.org
 */

use Palasthotel\WordPress\MigrateToGutenberg\Plugin;

include dirname( __FILE__ ) . "/public/m2g.php";

register_activation_hook(__FILE__, function($multisite){
	Plugin::instance()->onActivation($multisite);
});

register_deactivation_hook(__FILE__, function($multisite){
	Plugin::instance()->onDeactivation($multisite);
});

add_filter(\Palasthotel\WordPress\MigrateToGutenberg\Plugin::FILTER_SHORTCODE_TRANSFORMATIONS, function($transformations){
    return array_merge(
        $transformations,
        [
            new MintiHeadline(),
            new MintiSpacer(),
            new MintiImage(),
            new MintiVideo(),
            new MintiPlayVideo(),
            new MintiBox(),
            new MintiButton(),
            new MintiCallout(),
            new MintiTestimonial(),
            new MintiIcon(),
            new MintiIconBox(),
            new MintiDivider(),
            new MintiNewDivider(),
      		new VC_TTA_Accordion(),
		    new VC_TTA_Section(),
      		new IFrame(),
      		new VCRawHTML(),
        ]
    );
});

class MintiHeadline implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_headline";
    }
    function transform($attrs,string $content) : string{
        // our content here was full of h1 tags, so this is all to normalize the content
        $is_heading = false;
        if ( in_array( 'type', $attrs ) && str_starts_with( $attrs['type'], "h" ) ) {

          $h_level = str_replace( 'h', '', $attrs['type'] );
          $heading_level = ( (int) $h_level + 1);// start from h2
          // this was cursed, but basically if the size was below x, it shouldn't be a heading 
          $is_heading =  (int) ( array_key_exists( 'size', $attrs ) ? str_contains( $attrs['size'], 'x' ) : false );
          $heading_content = $content;
          $heading_json = ( 2 !== $heading_level) ? '{"level":"h'.$heading_level.'"}' : '';

        } elseif ( str_contains( $content, "<h" ) ) {

          $html = new WP_HTML_Tag_Processor( $content );
          $html->next_tag() === true;
          $tag = $html->get_tag();
          $h_level = abs((int) filter_var($tag, FILTER_SANITIZE_NUMBER_INT));
          $html->next_token();
          $heading_content = $html->get_modifiable_text();//this won't get all the text if there are inner tags (span, i, strong)
          $heading_level = ( (int) $h_level + 1);
          $is_heading = true;
          $heading_json = ( 2 !== $heading_level) ? '{"level":'.$heading_level.'}' : '';

        }

        if ( !$is_heading ) {
          $migrated_content = sprintf(
            "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->\n\n",
            $content
          );
        } else {
          $migrated_content = sprintf(
            "<!-- wp:heading %s -->\n<h%s class=\"wp-block-heading\">%s</h%s>\n<!-- /wp:heading -->\n\n",
            $heading_json,
            $heading_level,
            $heading_content,
            $heading_level,
          );
        }
        return $migrated_content;
    }
}

class MintiSpacer implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_spacer";
    }
    function transform($attrs,string $content) : string{
		
        $migrated_content = sprintf(
          "<!-- wp:spacer %s -->\n%s\n<!-- /wp:spacer -->\n\n",
          '{"height":"40px"}',
          '<div style="height:40px" aria-hidden="true" class="wp-block-spacer"></div>'
        );
        return $migrated_content;
    }
}

class MintiImage implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_image";
    }
    function transform($attrs,string $content) : string{
        $img_id = $attrs['img'];
        $img_size = $attrs['size'] ?? 'medium';
        $img_tag = wp_get_attachment_image( $img_id, $img_size, false, ['class'=> 'wp-image-'.$img_id] );

        $migrated_content = sprintf(
          "<!-- wp:image %s -->\n%s<!-- /wp:image -->\n\n",
          '{"id":"'.$img_id.'", "slugSize": "'.$img_size.'"}',
          '<figure class="wp-block-image size-'.$img_size.'">'.$img_tag.'</figure>'
        );
        return $migrated_content;
    }
}

class MintiVideo implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_video";
    }
    function transform($attrs,string $content) : string{
        $providerHost =  parse_url( $content, PHP_URL_HOST );
        $providerNameSlug = explode( '.', $providerHost )[0];

        $migrated_content = sprintf(
          "<!-- wp:embed %s -->\n%s<!-- /wp:embed -->\n\n",
          '{"url":"'.$content.'","type":"video","providerNameSlug":"'.$providerNameSlug.'","responsive":true}',
          sprintf(
            '<figure class="wp-block-embed is-type-video is-provider-%s wp-block-embed-%s"><div class="wp-block-embed__wrapper">%s</div></figure>',
            $providerNameSlug,
            $providerNameSlug,
            $content,
          ),
        );
        return $migrated_content;
    }
}
class MintiPlayVideo implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_playvideo";
    }
    function transform($attrs,string $content) : string{
        $video_url = $attrs['url'];
        $providerHost =  parse_url( $video_url, PHP_URL_HOST );
        $providerNameSlug = explode( '.', $providerHost )[0];

        return sprintf(
          "<!-- wp:embed %s -->\n%s<!-- /wp:embed -->\n\n",
          '{"url":"'.$video_url.'","type":"video","providerNameSlug":"'.$providerNameSlug.'","responsive":true}',
          sprintf(
            '<figure class="wp-block-embed is-type-video is-provider-%s wp-block-embed-%s"><div class="wp-block-embed__wrapper">%s</div></figure>',
            $providerNameSlug,
            $providerNameSlug,
            $video_url,
          ),
        );
    }
}
class MintiBox implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_box";
    }
    function transform($attrs,string $content) : string{
		if (
			( strpos( $content, '“' ) !== false )
			&& ( 1 === substr_count( $content, "\n" ) )
		) {
			$content_arr = explode( $content, "\n" );
			$bare_content = wp_strip_all_tags( $content[0] );
			$cite_content = wp_strip_all_tags( $content[1] );
			$updated_content = wpautop( $bare_content );
			$migrated_content = sprintf(
				"<!-- wp:quote -->\n%s<!-- /wp:quote -->\n\n",
				sprintf(
					'<blockquote class="wp-block-quote">%s</div>',
					sprintf(
						"<!-- wp:paragraph -->\n%s<!-- /wp:paragraph -->\n%s",
						"$updated_content",
						"<cite>$cite_content</cite>"
					),
				),
			);
		} else {
			// "The string does not contain double quotes.";
			$bare_content = wp_strip_all_tags( $content );
			$updated_content = wpautop( $bare_content );
	
			$migrated_content = sprintf(
				"<!-- wp:group %s -->\n%s<!-- /wp:group -->\n\n",
				'{"layout":{"type":"constrained"}}',
				sprintf(
					'<div class="wp-block-group">%s</div>',
					sprintf(
						"<!-- wp:paragraph -->\n%s<!-- /wp:paragraph -->",
						"$updated_content",
					),
				),
	
			);
		}

		return $migrated_content;
    }
}
class MintiTestimonial implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_testimonial";
    }
    function transform($attrs,string $content) : string{
		$author = esc_attr( $attrs['author'] );
		$company = esc_attr( $attrs['company'] );
		
		return sprintf(
			"<!-- wp:quote -->\n%s<!-- /wp:quote -->\n",
			sprintf(
				'<blockquote class="wp-block-quote">%s</blockquote>',
				sprintf(
					"<!-- wp:paragraph -->\n%s<!-- /wp:paragraph -->\n%s",
					$content,
					"<cite><strong>$author</strong><br>$company</cite>"
				),
			),
		);
    }
}
class MintiButton implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_button";
    }
    function transform($attrs,string $content) : string{
		$link = $attrs['link'];

		return sprintf(
			"<!-- wp:buttons -->\n%s<!-- /wp:buttons -->\n\n",
			sprintf(
				"<div class=\"wp-block-buttons\"><!-- wp:button -->%s<!-- /wp:button --></div>",
				sprintf(
					"<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"%s\">%s</a></div>",
					$link,
					$content,
				),
			),
		);
    }
}
class MintiCallout implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_callout";
    }
    function transform($attrs,string $content) : string{
		$url =  $attrs['url'];
		$buttontext =  $attrs['buttontext'];

		return sprintf(
			"<!-- wp:group %s -->\n%s<!-- /wp:group -->\n\n",
			'{"layout":{"type":"flex","flexWrap":"nowrap","justifyContent":"center"}}',
			sprintf(
				"<div class=\"wp-block-group\">%s\n\n%s</div>",
				sprintf(
					"<!-- wp:paragraph -->\n%s<!-- /wp:paragraph -->",
					"$content",
				),
				sprintf(
					"<!-- wp:buttons -->\n<div class=\"wp-block-buttons\">%s</div><!-- /wp:buttons -->",
					"<!-- wp:button --><div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"$url\">$buttontext</a></div><!-- /wp:button -->",
				),
			),

		);
    }
}
class MintiDivider implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_divider";
    }
    function transform($attrs,string $content) : string{

		return "<!-- wp:separator {\"className\":\"is-style-wide\"} --><hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"/><!-- /wp:separator -->\n\n";
    }
}
class MintiNewDivider implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_newdivider";
    }
    function transform($attrs,string $content) : string{

		return "<!-- wp:separator {\"className\":\"is-style-wide\"} --><hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"/><!-- /wp:separator -->\n\n";
    }
}
class MintiIconBox implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_iconbox";
    }
	function transform($attrs,string $content) : string{
		$title = esc_attr($attrs['title']);
		// not migrating icons here
		return sprintf(
			"<!-- wp:group %s -->\n%s<!-- /wp:group -->\n\n",
			'{"layout":{"type":"constrained"}}',
			sprintf(
				"<div class=\"wp-block-group\">%s\n\n%s</div>",
				"<!-- wp:heading {\"level\":3} -->\n<h3 class=\"wp-block-heading\">\n$title\n</h3><!-- /wp:heading -->\n",
				"<!-- wp:paragraph -->\n<p>$content</p><!-- /wp:paragraph -->",
			),
		);
    }
}
class MintiIcon implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "minti_icon";
    }
    function transform($attrs,string $content) : string{
		$icon =  esc_attr( $attrs['icon'] );
		
		return "<!-- wp:getbutterfly/font-awesome {\"faClass\":\"fa $icon\"} /-->";
    }
}
class VC_TTA_Accordion implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "vc_tta_accordion";
    }
    function transform($attrs,string $content) : string{
		$heading_level = 3; //hardcoding to 3, can be changed in editor
		return "<!-- wp:accordion {\"headingLevel\":$heading_level} --><div role=\"group\" class=\"wp-block-accordion\">\n$content</div><!-- /wp:group -->\n\n";
    }
}
class VC_TTA_Section implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "vc_tta_section";
    }
    function transform($attrs,string $content) : string{
		$title =  $attrs['title'];

		return sprintf(
			"<!-- wp:accordion-item --><div class=\"wp-block-accordion-item\">\n%s</div><!-- /wp:accordion-item -->\n\n",
			sprintf(
				"<!-- wp:accordion-heading {\"level\":3} --><h3 class=\"wp-block-accordion-heading\">%s</h3><!-- /wp:accordion-heading -->\n<!-- wp:accordion-panel --><div role=\"region\" class=\"wp-block-accordion-panel\">%s</div><!-- /wp:accordion-panel -->",
				"<button class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">$title</span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+</span></button>",
				$content
			),
		);
    }
}
class IFrame implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "iframe";
    }
    function transform($attrs,string $content) : string{
		$providerHost =  parse_url( esc_attr($attrs['src']), PHP_URL_HOST );

		if ( str_contains( $providerHost, 'youtube.com' ) ) {// these were all youtube.com/embed
			error_log('src:' . print_r( $attrs['src'], true ) );
			$url = $attrs['src'];
			$providerNameSlug = 'embed-handler';
	
			$migrated_content = sprintf(
				"<!-- wp:embed %s -->\n%s<!-- /wp:embed -->\n\n",
				'{"url":"'.$url.'","type":"rich","providerNameSlug":"'.$providerNameSlug.'","responsive":true,"className":"wp-embed-aspect-4-3 wp-has-aspect-ratio"}',
				sprintf(
					'<figure class="wp-block-embed is-type-rich is-provider-embed-handler wp-block-embed-embed-handler wp-embed-aspect-4-3 wp-has-aspect-ratio"><div class="wp-block-embed__wrapper">%s</div></figure>',
					$url,
				),
			);
		} else {
			$migrated_content = "<!-- wp:html -->\n<div class=\"responsive-container\"><iframe src=\"$url\" style=\"aspect-ratio: 9/16; width: 100%;\" loading=\"lazy\" width=\"500\" height=\"150\" frameborder=\"0\" allowfullscreen></iframe></div>\n<!-- /wp:embed -->\n";
		}
		return $migrated_content;
    }
}
class VCRawHTML implements \Palasthotel\WordPress\MigrateToGutenberg\Interfaces\ShortcodeTransformation {
    function tag() : string{
        return "vc_raw_html";
    }
    function transform($attrs,string $content) : string{
        $decoded_content = urldecode( base64_decode( $content ) );
        return "<!-- wp:html -->\n$decoded_content<!-- /wp:embed -->\n";
    }
}

This works with https://github.com/palasthotel/migrate-2-gutenberg