<?php
declare(strict_types=1);

namespace MailAccountAdmin\Frontend\Accounts;

use MailAccountAdmin\Common\FormData;
use MailAccountAdmin\Exceptions\InputValidationError;

class AccountDeleteAliasesData extends FormData
{
    /** @var array[int] */
    private array $selectedAliasIds;

    private function __construct(array $selectedAliasIds)
    {
        $this->selectedAliasIds = $selectedAliasIds;
    }

    public static function createFromArray(array $raw): self
    {
        $rawAliasIds = $raw['selected_aliases'] ?? [];

        if (!is_array($rawAliasIds)) {
            throw new InputValidationError('selected_aliases is not an array.');
        }
        if (empty($rawAliasIds)) {
            throw new InputValidationError('No aliases were selected.');
        }

        $selectedAliasIds = [];
        foreach ($rawAliasIds as $i => $id) {
            $selectedAliasIds[] = self::validateInteger($id, true, "selected_aliases[$i]");
        }

        return new self($selectedAliasIds);
    }

    public function getSelectedAliasIds(): array
    {
        return $this->selectedAliasIds;
    }
}