#121: The current photo analysis method now polls the queue table until the photo is analysed (or 60 seconds, which ever comes first.) The process command now creates user_activity records for the profile pages. Added an example systemd file to run the message queue.

app/Console/Commands/ProcessQueueCommand.php

@@ -7,6 +7,7 @@ use App\Photo;
 use App\QueueItem;
 use App\Services\PhotoService;
 use App\Services\RabbitMQService;
+use App\UserActivity;
 use Illuminate\Console\Command;
 
 class ProcessQueueCommand extends Command
@@ -85,18 +86,37 @@ class ProcessQueueCommand extends Command
 
                 default:
                     $this->output->writeln(sprintf('Action %s is not recognised, skipping', $queueItem->action_type));
-                    break;
+                    return;
             }
+
+            $queueItem->completed_at = new \DateTime();
+            $queueItem->save();
+        }
+        catch (\Exception $ex)
+        {
+            $this->output->error($ex->getMessage());
         }
         finally
         {
-            $queueItem->completed_at = new \DateTime();
-            $queueItem->save();
-
             $msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);
         }
     }
 
+    private function createActivityRecord(Photo $photo, $type, $activityDateTime = null)
+    {
+        if (is_null($activityDateTime))
+        {
+            $activityDateTime = new \DateTime();
+        }
+
+        $userActivity = new UserActivity();
+        $userActivity->user_id = $photo->user_id;
+        $userActivity->activity_at = $activityDateTime;
+        $userActivity->type = $type;
+        $userActivity->photo_id = $photo->id;
+        $userActivity->save();
+    }
+
     private function processPhotoAnalyseMessage(QueueItem $queueItem)
     {
         $this->output->writeln(sprintf('Analysing photo ID %l (batch: %s)', $queueItem->photo_id, $queueItem->batch_reference));
@@ -108,7 +128,31 @@ class ProcessQueueCommand extends Command
             $this->output->writeln('Photo does not exist; skipping');
         }
 
+        /* IF CHANGING THIS LOGIC, ALSO CHECK PhotoController::analyse */
         $photoService = new PhotoService($photo);
         $photoService->analyse($queueItem->batch_reference);
+
+        // Log an activity record for the user's feed (remove an existing one as the date may have changed)
+        $this->removeExistingActivityRecords($photo, 'photo.taken');
+
+        if (!is_null($photo->taken_at))
+        {
+            // Log an activity record for the user's feed
+            $this->createActivityRecord($photo, 'photo.taken', $photo->taken_at);
+        }
+    }
+
+    private function removeExistingActivityRecords(Photo $photo, $type)
+    {
+        $existingFeedRecords = UserActivity::where([
+            'user_id' => $photo->user_id,
+            'photo_id' => $photo->id,
+            'type' => $type
+        ])->get();
+
+        foreach ($existingFeedRecords as $existingFeedRecord)
+        {
+            $existingFeedRecord->delete();
+        }
     }
 }

app/Http/Controllers/Admin/AlbumController.php

@@ -67,12 +67,6 @@ class AlbumController extends Controller
         $this->authorizeAccessToAdminPanel('admin:manage-albums');
 
         $album = $this->loadAlbum($id, 'upload-photos');
-
-        if (UserConfig::isImageProcessingQueueEnabled())
-        {
-            dump($queue_token);exit();
-        }
-
         $photos = $album->photos()
             ->where('is_analysed', false)
             ->orderBy('created_at')

app/Http/Controllers/Admin/PhotoController.php

@@ -54,6 +54,40 @@ class PhotoController extends Controller
 
         try
         {
+            if (UserConfig::isImageProcessingQueueEnabled())
+            {
+                // Find the last record that is analysing this photo
+                $photoQueueItem = QueueItem::where('photo_id', $photo->id)
+                    ->orderBy('queued_at', 'desc')
+                    ->limit(1)
+                    ->first();
+
+                $timeToWait = 60;
+                $timeWaited = 0;
+                $continueToMonitor = true;
+
+                while ($continueToMonitor && $timeWaited < $timeToWait)
+                {
+                    $continueToMonitor = is_null($photoQueueItem->completed_at);
+                    if ($continueToMonitor)
+                    {
+                        sleep(1);
+                        $timeWaited++;
+
+                        $photoQueueItem = QueueItem::where('id', $photoQueueItem->id)->first();
+                        $continueToMonitor = is_null($photoQueueItem->completed_at);
+                    }
+                }
+
+                $result['is_successful'] = !is_null($photoQueueItem->completed_at);
+                if (!$result['is_successful'])
+                {
+                    $result['message'] = 'Timed out waiting for queue processing.';
+                }
+            }
+            else
+            {
+                /* IF CHANGING THIS LOGIC, ALSO CHECK ProcessQueueCommand::processPhotoAnalyseMessage */
                 $photoService = new PhotoService($photo);
                 $photoService->analyse($queue_token);
 
@@ -68,6 +102,7 @@ class PhotoController extends Controller
 
                 $result['is_successful'] = true;
             }
+        }
         catch (\Exception $ex)
         {
             $result['is_successful'] = false;

resources/systemd/blue-twilight-mq.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=Blue Twilight Processing Queue Runner
+
+[Service]
+WorkingDirectory=/data/www/blue-twilight.andysh.dev/
+ExecStart=/usr/bin/php artisan queue:process
+Restart=on-failure
+User=www-data
+Group=www-data
+Environment=USER=www-data HOME=/var/www
+
+[Install]
+WantedBy=multi-user.target