<?php

namespace UkrSolution\WpLabelsPrinting4\LabelDataMakers\Shortcodes\WpPosts;

class Taxonomy extends WpPostsShortcode
{
    const ORDER = 3700;
    const SHOW_IN_MATCHING = 0;

    public $display_name = 'Taxonomy';
    public function getValue($post, $field)
    {
        return $this->termsObjectsToString(get_the_terms($post, $field['value']));
    }

    protected function termsObjectsToString($terms, $termMeta = null)
    {
        if ($terms && !is_wp_error($terms)) {

            $terms = array_map(function ($term) use ($termMeta) {
                return empty($termMeta) ? $term->name : get_term_meta($term->term_id, $termMeta, true);
            }, $terms);

            return implode(', ', $terms);
        }

        return null;
    }
}