/**
  * @Route(
  *    path = "/insert/insertByUPC/{upc}",
  *    name = "insertByUPC",
  *    defaults={"upc" = "012345678901"}
  * )
  */
 public function insertByUPCAction(Request $request, $upc)
 {
     /* TODO: DISPLAYING A MESSAGE WHEN UPC VALUE HAS NOT BEEN FOUND */
     /* DISPLAYING THE INPUT FORM */
     $upcQuery = array('upc' => '');
     $form = $this->createFormBuilder($upcQuery)->setAction($this->generateUrl('insertByUPC'))->setMethod('GET')->add('upc', TextType::class)->add('save', SubmitType::class, array('label' => 'UPC search and possible insertion'))->getForm();
     $form->handleRequest($request);
     if ($form->isSubmitted()) {
         // Form has been submitted or upc has been passed in the URL
         $data = $form->getData();
         if ($data['upc'] != '') {
             $upc = $data['upc'];
         }
         // ... perform some action, such as saving the task to the database
         //$resString = print_r($data);
         //return(new Response($resString));
         /*
         searching by UPC,
         if found creating an object and
         setting its properties accordingly
         */
         // TODO:
         // moving configuration data outside in a configuration file
         $conf = new GenericConfiguration();
         $conf->setCountry('com')->setAccessKey('AKIAJD57F37W2KGLXEVQ')->setSecretKey('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')->setAssociateTag('quercusroburn-20')->setRequest('\\ApaiIO\\Request\\Soap\\Request');
         $lookup = new Lookup();
         $lookup->setIdType('UPC');
         //$lookup->setItemId('724384062026');
         //$lookup->setItemId('724382912521');
         $lookup->setItemId($upc);
         $lookup->setResponseGroup(array('ItemAttributes', 'Images', 'Tracks'));
         // More detailed information
         $apaiIo = new ApaiIO($conf);
         $response = $apaiIo->runOperation($lookup);
         $logger = $this->get('logger');
         // Cozy variable to shorten object invocation
         $item = $response->Items->Item;
         // TODO:
         // refining the way to decide if a result has been found
         if (property_exists($item->ItemAttributes, 'UPC')) {
             /* Item with that UPC has been found */
             $newRecord = new Record();
             $newRecord->setUpc($item->ItemAttributes->UPC);
             $newRecord->setAsin($item->ASIN);
             $newRecord->setCoverImageUrl($item->LargeImage->URL);
             if (property_exists($item->ItemAttributes, 'Brand')) {
                 $newRecord->setRecordLabel($item->ItemAttributes->Brand);
             } else {
                 $newRecord->setRecordLabel($item->ItemAttributes->Label);
             }
             $newRecord->setYear(substr($item->ItemAttributes->ReleaseDate, 0, 4));
             $logger->info('Vediamo: ' . json_encode($item));
             if (property_exists($item->ItemAttributes, 'Artist')) {
                 if (is_array($item->ItemAttributes->Artist)) {
                     // MEMO
                     // "implode" and "join" are the same, they are alias
                     $newRecord->setArtist(implode(', ', $item->ItemAttributes->Artist));
                 } else {
                     $newRecord->setArtist($item->ItemAttributes->Artist);
                 }
             } else {
                 if (property_exists($item->ItemAttributes, 'Creator')) {
                     // UPC: 828767523224
                     // ASIN: B000C6NONM
                     // Fabrizio De André, "In direzione ostinata e contraria"
                     $newRecord->setArtist($item->ItemAttributes->Creator->_);
                     // "Creator":{"_":"Fabrizio De Andr\u00e9","Role":"Performer"},
                     // TODO
                     // Porting this mechanism in searchByText
                 } else {
                     // Couldn't extract artist info
                 }
             }
             $newRecord->setTitle($item->ItemAttributes->Title);
             $newRecord->setMediaType($item->ItemAttributes->Binding);
             $newRecord->setMediaCount($item->ItemAttributes->NumberOfItems);
             // each media item has a track list
             $trackLists = array();
             if (property_exists($item, 'Tracks')) {
                 // Having the number of items does not mean tracks info is available...
                 // When number of media/items is greater than 1, but
                 // the tracks list is just one
                 // (it happened at least once with B000B66OVW, see EX03 below)
                 // then ->Tracks->Disc is not an array at it should be
                 // when more than one media are actually present
                 $oneListOnly = 0;
                 if (!is_array($item->Tracks->Disc)) {
                     $logger->info('The web service reported ' . $newRecord->getMediaCount() . ' media, but all tracks are in just one list.');
                     $oneListOnly = 1;
                 }
                 if ($item->ItemAttributes->NumberOfItems < 2 || $oneListOnly) {
                     //$newRecord->setMediaCount(1);
                     // One item only, one list, see EX00 at the bottom
                     $totalTracks = sizeof($item->Tracks->Disc->Track);
                     for ($i = 0; $i < $totalTracks; $i++) {
                         $tracksLists[0][] = $item->Tracks->Disc->Track[$i]->_;
                     }
                 } else {
                     // More than one media (EX01 ath the bottom)
                     for ($j = 0; $j < $item->ItemAttributes->NumberOfItems; $j++) {
                         $totalTracks = sizeof($item->Tracks->Disc[$j]->Track);
                         for ($i = 0; $i < $totalTracks; $i++) {
                             $tracksLists[$j][] = $item->Tracks->Disc[$j]->Track[$i]->_;
                         }
                     }
                 }
             } else {
                 // Tracks info is not available (no property "Tracks" in the object)
                 $logger->info('Tracks info is not available');
             }
             $newRecord->setTracksLists($tracksLists);
             $em = $this->getDoctrine()->getManager();
             $em->persist($newRecord);
             $em->flush();
             return $this->redirectToRoute('record_show', array('id' => $newRecord->getId()));
         } else {
             // TODO: DISPLAYING message telling the upc has not been found
             return new Response('upc not found');
         }
     } else {
         // Form has not been submitted and UPC has not been passed via URL
         return $this->render('AppBundle:Record:insertByUPC.html.twig', array('form' => $form->createView()));
     }
 }