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<?php
/**
 * FooGallery Gutenberg Functionality
 * Date: 28/10/2018
 */

require_once( FOOGALLERY_PATH . 'gutenberg/class-foogallery-blocks.php' );
require_once( FOOGALLERY_PATH . 'gutenberg/class-foogallery-rest-routes.php' );

if ( ! class_exists( 'FooGallery_Gutenberg' ) ) {

    class FooGallery_Gutenberg {

        function __construct() {
            new FooGallery_Blocks();
            new FooGallery_Rest_Routes();

            add_action( 'foogallery_attach_gallery_to_post', array( $this, 'attach_gallery_to_post' ), 10, 2 );
        }

        /**
         * Use the built-in Block Parser to "attach" a gallery to a post
         *
         * @param $post_id
         * @param $post
         */
        function attach_gallery_to_post( $post_id, $post ) {
            if ( !class_exists( 'WP_Block_Parser' ) ) {
                return;
            }

            if ( !is_object( $post ) ) {
                return;
            }

            $parser = new WP_Block_Parser();
            $blocks = $parser->parse( $post->post_content );

            foreach ( $blocks as $block ) {
                if ( array_key_exists( 'id', $block['attrs'] ) ) {
                    $gallery_id = $block['attrs']['id'];

                    add_post_meta( $post_id, FOOGALLERY_META_POST_USAGE, $gallery_id, false );

                    do_action( 'foogallery_attach_gallery_to_post', $post_id, $gallery_id );
                }
            }
        }
    }
}