<?php
/**
 * @package         Regular Labs Library
 * @version         23.10.17780
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            https://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         GNU General Public License version 2 or later
 */

namespace RegularLabs\Library;

defined('_JEXEC') or die;

class ObjectHelper
{
    /**
     * Change the case of object keys
     *
     * @param object $object
     * @param array  $key_format ('camel', 'dash', 'dot', 'underscore')
     * @param bool   $to_lowercase
     *
     * @return object
     */
    public static function changeKeyCase($object, $format, $to_lowercase = true)
    {
        return (object) ArrayHelper::applyMethodToKeys(
            [$object, $format, $to_lowercase],
            '\RegularLabs\Library\StringHelper',
            'toCase'
        );
    }

    /**
     * Deep clone an object
     *
     * @param object $object
     *
     * @return object
     */
    public static function clone($object)
    {
        return unserialize(serialize($object));
    }

    /**
     * Return the value by the object property key
     * A list of keys can be given. The first one that is not empty will get returned
     *
     * @param object       $object
     * @param string|array $keys
     *
     * @return mixed
     */
    public static function getValue($object, $keys, $default = null)
    {
        $keys = ArrayHelper::toArray($keys);

        foreach ($keys as $key)
        {
            if (empty($object->{$key}))
            {
                continue;
            }

            return $object->{$key};
        }

        return $default;
    }

    /**
     * Merge 2 objects
     *
     * @param object $object1
     * @param object $object2
     *
     * @return object
     */
    public static function merge($object1, $object2)
    {
        return (object) [...(array) $object1, ...(array) $object2];
    }

    /**
     * Replace key names
     *
     * @param object $object
     * @param array  $replacements
     *
     * @return object
     */
    public static function replaceKeys($object, $replacements, $include_prefixes = false, $prefix_delimiter = '_')
    {
        $json = json_encode($object);

        foreach ($replacements as $to => $froms)
        {
            if ( ! is_array($froms))
            {
                $froms = [$froms];
            }

            foreach ($froms as $from)
            {
                $json = str_replace(
                    '"' . $from . '":',
                    '"' . $to . '":',
                    $json
                );

                if ( ! $include_prefixes)
                {
                    continue;
                }

                $json = RegEx::replace(
                    '"' . RegEx::quote($from . $prefix_delimiter) . '([^"]+":)',
                    '"' . $to . $prefix_delimiter . '\1',
                    $json
                );
            }
        }

        return json_decode($json);
    }
}