MathLib.php

<?php
 
namespace Bitrix\Bizproc\Calc\Libs;
 
use Bitrix\Bizproc\Calc\Arguments;
use Bitrix\Main\Localization\Loc;
 
class MathLib extends BaseLib
{
    public function getFunctions(): array
    {
        return [
            'abs' => [
                'args' => true,
                'func' => 'callAbs',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_ABS_DESCRIPTION'),
            ],
            'intval' => [
                'args' => true,
                'func' => 'callIntval',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_INTVAL_DESCRIPTION'),
            ],
            'floatval' => [
                'args' => true,
                'func' => 'callFloatval',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_FLOATVAL_DESCRIPTION'),
            ],
            'min' => [
                'args' => true,
                'func' => 'callMin',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_MIN_DESCRIPTION'),
            ],
            'max' => [
                'args' => true,
                'func' => 'callMax',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_MAX_DESCRIPTION'),
            ],
            'rand' => [
                'args' => true,
                'func' => 'callRand',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_RAND_DESCRIPTION'),
            ],
            'round' => [
                'args' => true,
                'func' => 'callRound',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_ROUND_DESCRIPTION'),
            ],
            'ceil' => [
                'args' => true,
                'func' => 'callCeil',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_CEIL_DESCRIPTION'),
            ],
            'floor' => [
                'args' => true,
                'func' => 'callFloor',
                'description' => Loc::getMessage('BIZPROC_CALC_FUNCTION_FLOOR_DESCRIPTION'),
            ],
        ];
    }
 
    public function callAbs(Arguments $args)
    {
        return abs((float)$args->getFirstSingle());
    }
 
    public function callRound(Arguments $args)
    {
        $val = (float)$args->getFirstSingle();
        $precision = (int)$args->getSecond();
 
        return round($val, $precision);
    }
 
    public function callCeil(Arguments $args)
    {
        return ceil((double)$args->getFirstSingle());
    }
 
    public function callFloor(Arguments $args)
    {
        return floor((double)$args->getFirstSingle());
    }
 
    public function callMin(Arguments $args)
    {
        $array = array_filter($args->getFlatArray(), static fn($item) => is_scalar($item));
 
        return $array ? min($array) : false;
    }
 
    public function callMax(Arguments $args)
    {
        $array = array_filter($args->getFlatArray(), static fn($item) => is_scalar($item));
 
        return $array ? max($array) : false;
    }
 
    public function callRand(Arguments $args)
    {
        $min = (int)$args->getFirstSingle();
        $max = (int)$args->getSecondSingle();
 
        if (!$max || !is_finite($max))
        {
            $max = mt_getrandmax();
        }
 
        if ($min > $max)
        {
            //$args->getParser()->setError('rand(): Argument #2 ($max) must be greater than or equal to argument #1 ($min)');
 
            return null;
        }
 
        return mt_rand($min, $max);
    }
 
    public function callIntval(Arguments $args)
    {
        return (int)$args->getFirstSingle();
    }
 
    public function callFloatval(Arguments $args)
    {
        return (float)$args->getFirstSingle();
    }
}