<?php

declare(strict_types=1);

namespace Domain\Models\ValueObjects\Coupon;

use Domain\Models\ValueObjects\Period;

final readonly class CouponDiffusion
{
    public function __construct(
        /** @var Period[] */
        public array $periods,
    ) {
        if ($this->periods === []) {
            throw new \DomainException('Diffusion requires at least one period.');
        }

        foreach ($this->periods as $period) {
            if (!$period instanceof Period) {
                throw new \DomainException('CouponDiffusion periods must be Period instances.');
            }
        }
    }
}