DownloadDiscoveryArticleCommand.php

<?php

class DownloadDiscoveryArticleCommand
{
    public $batchSize = 10;

    public function handle()
    {
        $totalItems = $this->getTotalJournalsFromDiscovery();

        // Create jobs for each batch of items
        for ($i = 0; $i < $totalItems; $i += $this->batchSize) {
            $jobs[] = (new FetchDataFromDiscovery($i, $this->batchSize))->delay(/* Add delay mechanism as per requirement */);
        }

        $batch = Bus::batch($jobs)
            ->then(function (Batch $batch) {
                // All jobs completed successfully
                CacheUserJournalNewletter::dispatch();
            })->catch(function (Batch $batch, \Throwable $e) {
                // Batch failed retry
                $this->error('Batch failed: ' . $e->getMessage());
            })->finally(function (Batch $batch) {
                // For logging purpose
                $this->info('Batch processing completed');
            })->dispatch();
    }
}