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<?php
namespace Common\Csv;
use App\User;
use Carbon\Carbon;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Notification;
use Str;
abstract class BaseCsvExportJob implements ShouldQueue
{
use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
/**
* @var resource
*/
private $csvStream;
/**
* @var array
*/
protected $headerKeys;
abstract protected function generateLines();
abstract public function cacheName(): string;
public function handle()
{
$this->csvStream = fopen('php://temp', 'w');
$cacheName = $this->cacheName();
CsvExport::where('cache_name', $cacheName)->delete();
$this->generateLines();
$csvExport = CsvExport::create([
'cache_name' => $cacheName,
'user_id' => $this->requesterId ?? null,
'download_name' => "$cacheName.csv",
'uuid' => Str::uuid(),
]);
$csvExport->storeFile($this->csvStream);
fclose($this->csvStream);
$this->sendNotification($csvExport);
}
protected function writeLineToCsv(array $data)
{
if (!$this->headerKeys) {
$this->buildCsvHeader($data);
}
$values = array_map(function ($value) {
if ($value instanceof Carbon) {
return $value->created_at->format('Y-m-d');
}
return $value;
}, array_values($data));
fputcsv($this->csvStream, $values);
}
protected function buildCsvHeader(array $lineData)
{
$this->headerKeys = array_map(function ($column) {
return Str::title(str_replace('_', ' ', $column));
}, array_keys($lineData));
fputcsv($this->csvStream, $this->headerKeys);
}
protected function notificationName(): string
{
return $this->cacheName();
}
protected function sendNotification(CsvExport $export)
{
User::find($this->requesterId)->notify(
new CsvExportReadyNotif($export, $this->notificationName()),
);
}
}