coolify/app/Notifications/Server/NotReachable.php

<?php

namespace App\Notifications\Server;

use App\Models\Server;
use App\Notifications\Channels\DiscordChannel;
use App\Notifications\Channels\EmailChannel;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Notification;
use Illuminate\Support\Str;

class NotReachable extends Notification implements ShouldQueue
{
    use Queueable;

    public $tries = 5;
    public function __construct(public Server $server)
    {

    }

    public function via(object $notifiable): array
    {
        return setNotificationChannels($notifiable, 'status_changes');
    }

    public function toMail(): MailMessage
    {
        $mail = new MailMessage();
        // $fqdn = $this->fqdn;
        $mail->subject("⛔ Server '{$this->server->name}' is unreachable");
        // $mail->view('emails.application-status-changes', [
        //     'name' => $this->application_name,
        //     'fqdn' => $fqdn,
        //     'application_url' => $this->application_url,
        // ]);
        return $mail;
    }

    public function toDiscord(): string
    {
        $message = '⛔ Server \'' . $this->server->name . '\' is unreachable (could be a temporary issue). If you receive this more than twice in a row, please check your server.';
        return $message;
    }
    public function toTelegram(): array
    {
        return [
            "message" => '⛔ Server \'' . $this->server->name . '\' is unreachable (could be a temporary issue). If you receive this more than twice in a row, please check your server.'
        ];
    }
}