<?php

namespace Modules\Licensing\Services;

use Modules\Licensing\Models\LicenseDeliveryOutbox;
use Illuminate\Support\Facades\Crypt;
use Illuminate\Support\Facades\Mail;

final class LicenseDeliveryService
{
    public function deliverPending(int $limit = 20): int
    {
        $delivered = 0;
        $pending = LicenseDeliveryOutbox::query()
            ->with('license')
            ->whereNull('delivered_at')
            ->whereNotNull('recipient_email')
            ->where('recipient_email', '!=', '')
            ->oldest()
            ->limit(max(1, min($limit, 100)))
            ->get();

        foreach ($pending as $outbox) {
            $license = $outbox->license;
            if (! $license) {
                continue;
            }

            $plain = Crypt::decryptString($outbox->encrypted_license_key);
            $recipient = strtolower(trim((string) $outbox->recipient_email));
            if ($recipient === '') {
                continue;
            }

            $data = [
                'customerName' => $license->customer_name,
                'edition' => $license->edition,
                'licenseKey' => $plain,
                'expiresAt' => $license->expires_at,
                'portalUrl' => config('sonardesk.portal_url') ?: url('/portal'),
                'downloadUrl' => route('release'),
            ];

            Mail::send(['html' => 'licensing::emails.license-key', 'text' => 'licensing::emails.license-key-text'], $data, function ($message) use ($recipient): void {
                $message->to($recipient)->subject('Your SonarDesk licence key');
            });

            $outbox->update(['delivered_at' => now()]);
            $delivered++;
        }

        return $delivered;
    }
}