OpenLitterMap/openlittermap-web

use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
use Illuminate\Support\Facades\Event;

class EventServiceProvider extends ServiceProvider
{
    protected $listen = [
        //
        'App\Events\Photo\IncrementPhotoMonth' => [
            'App\Listeners\UpdateTimes\IncrementCountryMonth',
            'App\Listeners\UpdateTimes\IncrementStateMonth',
            'App\Listeners\UpdateTimes\IncrementCityMonth',
        ]
    ];

    public function boot()
    {
        parent::boot();
    }
}

use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;

class IncrementPhotoMonth implements ShouldQueue
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    public $country_id, $state_id, $city_id, $created_at;

    public function __construct ($country_id, $state_id, $city_id, $created_at)
    {
        $this->country_id = $country_id;
        $this->state_id   = $state_id;
        $this->city_id    = $city_id;
        $this->created_at = $created_at;
    }

    public function broadcastOn ()
    {
        return new PrivateChannel('channel-name');
    }
}

use App\Events\ResetTagsCountAdmin;
use App\Models\Photo;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Queue\InteractsWithQueue;

class ResetCompileString
{
    public function handle (ResetTagsCountAdmin $event)
    {
        if ($photo = Photo::find($event->photo_id))
        {
            $photo->result_string = null;
            $photo->save();
        }
    }
}

use App\Events\ResetTagsCountAdmin;
use App\Models\Location\City;
use App\Models\Photo;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Queue\InteractsWithQueue;

class DecrementCity
{
    //
    public function handle (ResetTagsCountAdmin $event)
    {
        $photo = Photo::find($event->photo_id);

        if ($city = City::find($photo->city_id))
        {
            $total_count = 0;

            foreach ($photo->categories() as $category)
            {
                if ($photo->$category)
                {
                    $total = $photo->$category->total();

                    $total_string = "total_" . $category; // total_smoking, total_food...

                    $city->$total_string -= $total;

                    $total_count += $total; // total counts of all categories
                }
            }

            $city->total_litter -= $total_count;
            $city->total_images--;
            $city->save();
        }
    }
}