izyim/app/Classes/Modules/Steps/StepAttachments.php

<?php

namespace App\Classes\Modules\Steps;

use App\Classes\Constants;
use App\Http\Resources\PackingList as PackingListResource;
use App\Http\Resources\ShippingArrangement as ShippingArrangementResource;
use App\Models\PackingList;
use App\Models\ShippingArrangement;

class StepAttachments
{
    public function execute($order_id, $referenceId){
        switch ($referenceId) {
            case Constants::ORDER_WAREHOUSE_PACKING_STEP:
                return new PackingListResource(PackingList::where('order_id', $order_id)->first());
            case Constants::ORDER_SHIPPING_STEP:
                return new ShippingArrangementResource(ShippingArrangement::where('order_id', $order_id)->first());
            case Constants::ORDER_DELIVERY_STEP:
                return new ShippingArrangementResource(ShippingArrangement::where('order_id', $order_id)->first());
            default:
                return null;
        }

    }
}