/**
  * Execute the console command.
  *
  * @return mixed
  */
 public function handle()
 {
     $filename = $this->argument('filename') ?: 'quotes.json';
     $fp = fopen($filename, 'w');
     fwrite($fp, '[');
     $this->info('Exporting quotes...');
     Quote::chunk(100, function ($quotes) use($fp) {
         foreach ($quotes as $quote) {
             if ($this->count > 0) {
                 fwrite($fp, ',');
             }
             fwrite($fp, json_encode(['text' => $quote->content, 'author' => $quote->author->name]));
             $this->count++;
         }
         $this->info("Exported {$this->count} quotes.");
     });
     fwrite($fp, ']');
     fclose($fp);
 }