toby/app/Domain/Validation/Rules/MinimumOneVacationDayRule.php

<?php

declare(strict_types=1);

namespace Toby\Domain\Validation\Rules;

use Toby\Domain\VacationDaysCalculator;
use Toby\Eloquent\Models\VacationRequest;

class MinimumOneVacationDayRule implements VacationRequestRule
{
    public function __construct(
        protected VacationDaysCalculator $vacationDaysCalculator,
    ) {}

    public function check(VacationRequest $vacationRequest): bool
    {
        return $this->vacationDaysCalculator
            ->calculateDays($vacationRequest->from, $vacationRequest->to)
            ->isNotEmpty();
    }

    public function errorMessage(): string
    {
        return __("Vacation needs minimum one day.");
    }
}