<?php

namespace App\Observers;

use App\Jobs\InstallDkimKey;
use App\Jobs\RemoveDkimKey;
use App\Models\DkimKey;
use App\Models\Domain;
use App\Services\DkimService;

class DomainObserver
{
    /**
     * DKIM bei neuen Domains erzeugen + in OpenDKIM installieren.
     * Läuft NUR, wenn die Domain aktiv ist (anpassbar).
     */
    public function created(Domain $domain): void
    {
        // Standardwerte aus Config oder .env
        $selector = config('mailwolt.dkim.selector', 'mwl1');
        $bits     = (int) config('mailwolt.dkim.bits', 2048);

        // Keypair erzeugen
        $res = app(DkimService::class)->generateForDomain(
            domainId: $domain,
            bits:     $bits,
            selector: $selector
        );

        // In dkim_keys speichern
        $dk = DkimKey::create([
            'domain_id'       => $domain->id,
            'selector'        => $res['selector'],
            'private_key_pem' => $res['private_pem'],
            'public_key_txt'  => preg_replace('/^v=DKIM1; k=rsa; p=/', '', $res['dns_txt']),
            'is_active'       => true,
        ]);

        // Helper-Job zum Installieren starten
        InstallDkimKey::dispatch(
            domainId:      $domain->id,
            dkimKeyId:     $dk->id,
            privPath:      $res['priv_path'],
            dnsTxtContent: $res['dns_txt']
        )->afterCommit();
    }

    /**
     * Beim Löschen alle DKIM-Selector dieser Domain aus OpenDKIM entfernen.
     */
    public function deleted(Domain $domain): void
    {
        // Falls SoftDeletes im Spiel, willst du evtl. forceDeleted spiegeln (s.u.)
        foreach ($domain->dkimKeys()->get() as $dk) {
            RemoveDkimKey::dispatch(
                domainId: $domain->id,
                selector: $dk->selector
            )->afterCommit();
        }
    }

    public function forceDeleted(Domain $domain): void
    {
        $this->deleted($domain);
    }
}