Update notification epoch generation

app/Console/Commands/NotificationEpochUpdate.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+use App\Jobs\InternalPipeline\NotificationEpochUpdatePipeline;
+
+class NotificationEpochUpdate extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'app:notification-epoch-update';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'Update notification epoch';
+
+    /**
+     * Execute the console command.
+     */
+    public function handle()
+    {
+        NotificationEpochUpdatePipeline::dispatch();
+    }
+}

app/Console/Kernel.php

@@ -43,6 +43,7 @@ class Kernel extends ConsoleKernel
             $schedule->command('app:import-remove-deleted-accounts')->hourlyAt(37);
             $schedule->command('app:import-upload-clean-storage')->twiceDailyAt(1, 13, 32);
         }
+        $schedule->command('app:notification-epoch-update')->weeklyOn(1, '2:21');
     }
 
     /**

app/Jobs/InternalPipeline/NotificationEpochUpdatePipeline.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Jobs\InternalPipeline;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldBeUnique;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Queue\Middleware\WithoutOverlapping;
+use Illuminate\Contracts\Queue\ShouldBeUniqueUntilProcessing;
+use App\Notification;
+use Cache;
+use App\Services\NotificationService;
+
+class NotificationEpochUpdatePipeline implements ShouldQueue, ShouldBeUniqueUntilProcessing
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    public $timeout = 1500;
+    public $tries = 3;
+    public $maxExceptions = 1;
+    public $failOnTimeout = true;
+
+    /**
+     * The number of seconds after which the job's unique lock will be released.
+     *
+     * @var int
+     */
+    public $uniqueFor = 3600;
+
+    /**
+     * Get the unique ID for the job.
+     */
+    public function uniqueId(): string
+    {
+        return 'ip:notification-epoch-update';
+    }
+
+    /**
+     * Get the middleware the job should pass through.
+     *
+     * @return array<int, object>
+     */
+    public function middleware(): array
+    {
+        return [(new WithoutOverlapping('ip:notification-epoch-update'))->shared()->dontRelease()];
+    }
+
+    /**
+     * Create a new job instance.
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Execute the job.
+     */
+    public function handle(): void
+    {
+        $rec = Notification::where('created_at', '>', now()->subMonths(6))->first();
+        $id = 1;
+        if($rec) {
+            $id = $rec->id;
+        }
+        Cache::put(NotificationService::EPOCH_CACHE_KEY . '6', $id, 1209600);
+    }
+}

app/Services/NotificationService.php

@@ -12,6 +12,7 @@ use App\Transformer\Api\NotificationTransformer;
 use League\Fractal;
 use League\Fractal\Serializer\ArraySerializer;
 use League\Fractal\Pagination\IlluminatePaginatorAdapter;
+use App\Jobs\InternalPipeline\NotificationEpochUpdatePipeline;
 
 class NotificationService {
 
@@ -48,12 +49,12 @@ class NotificationService {
 
 	public static function getEpochId($months = 6)
 	{
-		return Cache::remember(self::EPOCH_CACHE_KEY . $months, 1209600, function() use($months) {
-            if(Notification::count() === 0) {
-                return 0;
+		$epoch = Cache::get(self::EPOCH_CACHE_KEY . $months);
+		if(!$epoch) {
+			NotificationEpochUpdatePipeline::dispatch();
+			return 1;
 		}
-			return Notification::where('created_at', '>', now()->subMonths($months))->first()->id;
-		});
+		return $epoch;
 	}
 
 	public static function coldGet($id, $start = 0, $stop = 400)