public function register_suffix_date( $post_types = [] ) {
		foreach ( $post_types as $post_type => $args ) {
			$this->post_types[ $post_type ] = [
				'callback' => function( $post_slug, $post_data, $post_id ) use ( $args ) {
					$args = wp_parse_args( $args, [
						'meta_key'      => 'date_start',
						'input_format'  => 'Ymd',
						'output_format' => 'Y-m-d',
					] );

					$meta_value = get_post_meta( $post_id, $args['meta_key'], true );

					if ( ! $meta_value ) {
						return $post_slug;
					}

					$date = \DateTime::createFromFormat( $args['input_format'], $meta_value );

					if ( $date ) {
						$post_slug = $post_data['post_title'] . '-'
							. $date->format( $args['output_format'] );
					}

					return $post_slug;
				},
			];
		}
	}