<?php

namespace App\Rules;

use Closure;
use Illuminate\Contracts\Validation\ValidationRule;

class UnsignedBigInteger implements ValidationRule
{
    public function validate(string $attribute, mixed $value, Closure $fail): void
    {
        if (! ctype_digit((string) $value)) {
            $fail("{$attribute} harus berupa bilangan bulat positif.");

            return;
        }

        if (bccomp($value, '0') < 0 || bccomp($value, '18446744073709551615') > 0) {
            $fail("{$attribute} harus berada di antara 0 dan 18446744073709551615.");
        }
    }
}