shipping-portal/app/Transformers/PackageListTransformer.php

<?php

namespace App\Transformers;

use App\Classes\ValueObjects\Constants\ApprovalStatus;
use App\Classes\ValueObjects\Constants\RoleTypes;
use App\Classes\ValueObjects\Constants\TransactionType;
use App\Models\PackingList;
use League\Fractal\Resource\Collection;
use League\Fractal\Resource\Item;
use League\Fractal\TransformerAbstract;

class PackageListTransformer extends TransformerAbstract
{
    /**
     * List of resources to automatically include
     *
     * @var array
     */
    protected $defaultIncludes = [
        'transport',
        'receive_packing_list',
        'packages',
        'shipping_transaction',
        'suspended_invoice'
    ];

    /**
     * List of resources possible to include
     *
     * @var array
     */
    protected $availableIncludes = [
        'order'
    ];

    /**
     * A Fractal transformer.
     *
     * @param PackingList $packingList
     * @return array
     */
    public function transform(PackingList $packingList): array
    {
        return [
            'id' => $packingList->id,
            'claimant_id' => $packingList->claimant_id,
            'reference' => $packingList->reference,
            'status' => $packingList->status,
            'type' => $packingList->type,
        ];
    }

    /**
     * include Transport
     * @param PackingList $packingList
     * @return Item
     */
    public function includeTransport(PackingList $packingList): Item
    {
        return $this->item($packingList->transport()->first(), new TransportTransformer);
    }

    /**
     * Include Receive Packing List
     * @param PackingList $packingList
     * @return Item
     */
    public function includeReceivePackageList(PackingList $packingList): Item
    {

        //$this->when($this->type === PackingListType::SHIPPING_PACKING_LIST, new PackingListResource(PackingList::where('reference', $this->reference)->where('type', PackingListType::WAREHOUSE_RECEIVE_LIST)->first())),

        return $this->item($packingList->receivePackageList()->first(), new PackageListTransformer);
    }

    /**
     * Include Packages
     * @param PackingList $packingList
     * @return Collection
     */
    public function includePackages(PackingList $packingList): Collection
    {
        $exceptionUsers = in_array(Auth()->user()->type, [RoleTypes::SHADOW_ADMIN, RoleTypes::SUPER_ADMIN]);
        $packages = !$packingList->packingLists()->exists() || $exceptionUsers ? $packingList->packages : $packingList->packingLists->first()->packages;

        return $this->collection($packages, new PackageTransformer);
    }

    /**
     * include Order
     * @param PackingList $packingList
     * @return Item
     */
    public function includeOrder(PackingList $packingList): Item
    {
        return $this->item($packingList->owner, new OrderTransformer);
    }

    /**
     * include Shipping Transaction
     * @param PackingList $packingList
     * @return Item
     */
    public function includeShippingTransaction(PackingList $packingList): Item
    {
        return $this->item($packingList->transactions()->where('type', TransactionType::SHIPPING_INVOICE)->whereNotIn('status', [ApprovalStatus::SUSPENDED, ApprovalStatus::EXPIRED])->first(), new TransactionTransformer());
    }

    /**
     * include Suspended Invoice
     * @param PackingList $packingList
     * @return Item
     */
    public function includeSuspendedInvoice(PackingList $packingList): Item
    {
        return $this->item($packingList->transactions()->where('type', TransactionType::SHIPPING_INVOICE)->whereIn('status', [ApprovalStatus::SUSPENDED])->first(), new TransactionTransformer());
    }

}