ArrayLib.php

<?php
 
namespace Bitrix\Bizproc\Calc\Libs;
 
use Bitrix\Bizproc\Calc\Arguments;
use Bitrix\Main\Localization\Loc;
 
class ArrayLib extends BaseLib
{
    public function getFunctions(): array
    {
        return [
            'implode' => [
                'args' => true,
                'func' => 'callImplode',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_IMPLODE_DESCRIPTION'),
            ],
            'explode' => [
                'args' => true,
                'func' => 'callExplode',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_EXPLODE_DESCRIPTION'),
            ],
            'merge' => [
                'args' => true,
                'func' => 'callMerge',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_MERGE_DESCRIPTION'),
            ],
            'shuffle' => [
                'args' => true,
                'func' => 'callShuffle',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_SHUFFLE_DESCRIPTION'),
            ],
            'firstvalue' => [
                'args' => true,
                'func' => 'callFirstValue',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_FIRSTVALUE_DESCRIPTION'),
            ],
            'swirl' => [
                'args' => true,
                'func' => 'callSwirl',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_SWIRL_DESCRIPTION'),
            ],
        ];
    }
 
    public function callImplode(Arguments $args)
    {
        $glue = $args->getFirst();
 
        if (!is_scalar($glue))
        {
            return null;
        }
 
        $pieces = \CBPHelper::makeArrayFlat($args->getSecond());
 
        if (!$pieces)
        {
            return '';
        }
 
        return implode($glue, $pieces);
    }
 
    public function callExplode(Arguments $args)
    {
        $delimiter = $args->getFirst();
        $str = $args->getSecondSingle();
 
        if (empty($delimiter) || !is_scalar($str) || !is_scalar($delimiter))
        {
            return null;
        }
 
        $str = (string)$str;
 
        return explode($delimiter, $str);
    }
 
    public function callMerge(Arguments $args)
    {
        $arrays = $args->getArray();
 
        foreach ($arrays as &$a)
        {
            $a = is_object($a) ? [$a] : (array)$a;
        }
 
        return array_merge(...$arrays);
    }
 
    public function callShuffle(Arguments $args)
    {
        $array = array_filter($args->getFlatArray(), fn ($arg) => $arg !== null);
        shuffle($array);
 
        return $array;
    }
 
    public function callFirstValue(Arguments $args)
    {
        $array = $args->getFlatArray();
 
        return $array[0] ?? null;
    }
 
    public function callSwirl(Arguments $args)
    {
        $array = array_values(
            array_filter($args->getFlatArray(), fn ($arg) => $arg !== null)
        );
 
        if (count($array) <= 1)
        {
            return $array;
        }
 
        return array_merge(array_slice($array, 1), [$array[0]]);
    }
}