<?php
namespace VPSManager;

final class BackupOption
{
    public const NAMES = ['Backup diario', 'Backup diario VPS'];

    // Resolve only groups linked to the product of the authorized service.
    // Definitions describe applicable options; they never prove subscription.
    public static function applicable($productId): array
    {
        $groups = \WHMCS\Database\Capsule::table('tblproductconfiglinks')->where('pid', $productId)->get();
        $seenGroups = []; $keys = [];
        foreach ($groups as $link) {
            if (isset($seenGroups[$link->gid])) continue;
            $seenGroups[$link->gid] = true;
            $options = \WHMCS\Database\Capsule::table('tblproductconfigoptions')->where('gid', $link->gid)->get();
            foreach ($options as $option) {
                if (!in_array($option->optionname, self::NAMES, true)) continue;
                // Only the confirmed Yes/No definition type is supported. This is NOT activation.
                if (!in_array($option->optiontype, [3, '3'], true) || in_array($option->optionname, $keys, true)) {
                    throw new \RuntimeException('OPTION_DEFINITION');
                }
                $keys[] = $option->optionname;
            }
        }
        sort($keys, SORT_STRING);
        return $keys;
    }

    public static function conflict(array $options): bool
    {
        return array_key_exists(self::NAMES[0], $options) && array_key_exists(self::NAMES[1], $options)
            && $options[self::NAMES[0]] !== $options[self::NAMES[1]];
    }

}