<?php

namespace App\Domain\Model\Value;

final readonly class Date
{
    public function __construct(
        public ?int $month,
        public ?int $day,
        public int $year,
    ) {
        if ($this->month < 1 || $this->month > 12) {
            throw new \InvalidArgumentException('Month must be between 1 and 12');
        }

        if ($this->day < 1 || $this->day > 31) {
            throw new \InvalidArgumentException('Day must be between 1 and 31');
        }
    }

    public function __toString(): string
    {
        return $this->year . '-' . $this->month . '-' . $this->day;
    }
}