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<?php declare(strict_types=1);
/**
 * Copyright (C) Apis Networks, Inc - All Rights Reserved.
 *
 * Unauthorized copying of this file, via any medium, is
 * strictly prohibited without consent. Any dissemination of
 * material herein is prohibited.
 *
 * For licensing inquiries email <licensing@apisnetworks.com>
 *
 * Written by Matt Saladna <matt@apisnetworks.com>, July 2018
 */

abstract class Module_Support_Dns extends Module_Skeleton implements \Opcenter\Contracts\Hookable, \Module\Skeleton\Contracts\Proxied
{
    const DEPENDENCY_MAP = [
        'siteinfo'
    ];
    // @var Record
    protected $zoneCache = [];

    /**
     * Add record to cache
     *
     * @param \Opcenter\Dns\Record $r
     */
    protected function addCache(\Opcenter\Dns\Record $r): void
    {
        $key = $this->getCacheKey($r);
        array_set(
            $this->zoneCache[$r->getZone()],
            $key,
            array_merge(array_get($this->zoneCache[$r->getZone()], $key, []), [$r])
        );
    }

    protected function getCacheKey(\Opcenter\Dns\Record $r): string
    {
        if (!isset($this->zoneCache[$r->getZone()])) {
            $this->zoneAxfr($r->getZone());
        }

        return "records." . strtoupper($r['rr']) . "." . ($r['name'] ?: '@');
    }

    /**
     * Get internal CF zone ID
     *
     * @param string $domain
     * @return null|string
     */
    protected function getZoneId(string $domain): ?string
    {
        return $domain;
    }

    protected function getRecordId(\Opcenter\Dns\Record $r): ?string
    {
        // @var \Opcenter\Dns\Record[] $cache
        $idx = $this->getCacheKey($r);
        if (null === ($cache = array_get($this->zoneCache[$r->getZone()], $idx))) {
            return null;
        }
        foreach ($cache as $id => $c) {
            // @var \Opcenter\Dns\Record $r
            if ($c->is($r)) {
                return (string)$c->getMeta('id');
            }
        }

        return null;
    }
}