<?php

declare(strict_types=1);

namespace Psl\PseudoRandom;

use Psl\Math;
use Psl\Str;

use function mt_rand;

/**
 * Returns a pseudo-random integer in the given range.
 *
 * @throws Exception\InvalidArgumentException If $min > $max
 *
 * @psalm-external-mutation-free
 */
function int(int $min = Math\INT64_MIN, int $max = Math\INT64_MAX): int
{
    if ($min > $max) {
        throw new Exception\InvalidArgumentException(Str\format('Expected $min (%d) to be less than or equal to $max (%d).', $min, $max));
    }

    return mt_rand($min, $max);
}