eCert-MBIP/app/Jobs/SendCertificateEmailJob.php

<?php

namespace App\Jobs;

use App\Models\Certificate;
use App\Models\Program;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;

class SendCertificateEmailJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public int $tries = 3;
    public int $backoff = 60;

    public function __construct(public readonly Certificate $certificate) {}

    public function handle(): void
    {
        // Implemented in Fasa 8 — email blast
    }

    public static function dispatchBatch(Program $program): void
    {
        $program->certificates()
            ->whereIn('status', ['generated'])
            ->whereNull('emailed_at')
            ->each(fn($cert) => static::dispatch($cert));
    }
}