<?php

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Copy this example file to the /wp-content/themes/YOUR_THEME/product-labels-printing/api.php
 * and this file will be automatically loaded by plugin.
 * This API allows you to create your own "shortcodes" which you can add to label templates
 * and they will be replaced with values you fetch in api.php
 */

/********************************
 * Add custom shortcodes hooks
 ********************************/

/********** Variant I (using hooks wrapper) ********************/
// Check for function existence
if (function_exists('uslp_add_custom_shortcode')) {
    // Creation of the [random-number] shortcode
    uslp_add_custom_shortcode('random-number', function ($value, $shortcode, $item, $field) {
        return wp_rand(1, 100);
    });
}


/*******************************************
 * Add custom sort method for labels hook
 *******************************************/

// Check for function existence
if (!function_exists('barcodes_products_sort_items_hook')) {
    /**
     * This hook allows applying custom sorting for label items.
     *
     * @param $items
     *
     * @return void
     */
    function barcodes_products_sort_items_hook($items)
    {
        // Example. Sort items by name.
        usort($items, function ($a, $b) {
            return strcmp($a->post_title, $b->post_title);
        });

        return $items;
    }
}

add_filter('barcodes_products_sort_items_hook', 'barcodes_products_sort_items_hook', 10, 3);