<?php

namespace App\Integrations\Domain\Support;

use Illuminate\Support\Facades\DB;

/** Resolves a source `dns_manager_servers.id` to the local row via `legacy_id`. */
class DnsServerIdResolver
{
    /** @var array<int, int>|null */
    private static ?array $map = null;

    public function resolve(int $legacyServerId): ?int
    {
        self::$map ??= DB::table('dns_manager_servers')->whereNotNull('legacy_id')->pluck('id', 'legacy_id')->all();

        return self::$map[$legacyServerId] ?? null;
    }
}