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<?php
// Job chaining
use Illuminate\Support\Facades\Bus;

Bus::chain([
    new \App\Jobs\OptimizeImage($upload),
    new \App\Jobs\GenerateThumbnails($upload),
    new \App\Jobs\NotifyUser($upload->user),
])->catch(function (\Throwable $e) {
    \Log::error('Chain failed: ' . $e->getMessage());
})->dispatch();

// Job batching
$batch = Bus::batch([
    new \App\Jobs\ImportRow($rows->slice(0, 100)),
    new \App\Jobs\ImportRow($rows->slice(100, 100)),
    new \App\Jobs\ImportRow($rows->slice(200)),
])->then(function (\Illuminate\Bus\Batch $batch) {
    \Log::info('All import jobs completed.');
})->catch(function (\Illuminate\Bus\Batch $batch, \Throwable $e) {
    \Log::error('Batch failed: ' . $e->getMessage());
})->finally(function (\Illuminate\Bus\Batch $batch) {
    // Runs regardless of success/failure
})->dispatch();

// Rate-limited job middleware
use Illuminate\Queue\Middleware\RateLimited;

class CallExternalApi implements \Illuminate\Contracts\Queue\ShouldQueue
{
    public function middleware(): array
    {
        return [new RateLimited('external-api')];
    }
}

// Register the limiter in AppServiceProvider::boot()
// \RateLimiter::for('external-api', fn($job) => \Illuminate\Cache\RateLimiting\Limit::perMinute(20));