portal/app/Classes/Modules/Exports/Services/ExportsArrivedParcel.php

<?php

namespace App\Classes\Modules\Exports\Services;

use App\Classes\ValueObjects\Constants\ApprovalStatus;
use App\Models\PackingList;
use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithHeadingRow;
use Maatwebsite\Excel\Concerns\WithMapping;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\ShouldAutoSize;
use Carbon\Carbon;
use App\Classes\ValueObjects\Constants\OrderRoleTypes;
use App\Classes\ValueObjects\Constants\RoleTypes;

class ExportsArrivedParcel implements WithHeadings, WithHeadingRow, WithMapping, ShouldAutoSize, FromCollection
{

    use Exportable;

    public function headings(): array
    {
        return [
            'ORDER NUMBER',
            'Marking',
            'Warehouse',
            'Cbm',
            'Description',
            'quantity',
            'Received Date',
            'Remarks'
        ];
    }

    /**
     * @return \Illuminate\Support\Collection|mixed
     */
    public function collection()
    {
        $returnArray = collect();

        $packingLists = PackingList::where('type', '=', 1)->where('status', '=', 2)->get();
        $exceptionUsers = in_array(Auth()->user()->type, [RoleTypes::SHADOW_ADMIN, RoleTypes::SUPER_ADMIN]);

        foreach($packingLists as $packingList){
            $packages = !$packingList->packingLists()->exists() || $exceptionUsers ? $packingList->packages : $packingList->packingLists->first()->packages;
            foreach ($packages as $package) {
                $returnArray->push($package);
            }
        }
        
        return $returnArray;
    }

    /**
     * @param ReturnArray $returnArray
     *
     * @return array
     */
    public function map($package): array
    {
        $packingList = $package->packingList;
        $order = $packingList->owner;

        $connection = $order->companyModule()->first()->inviters()->withPivot('invitee_reference')->first();
        $marking = $connection ? $connection->pivot->invitee_reference:'';

        $warehouse = $order->orderRoles()->where('role_id', '=', OrderRoleTypes::ORIGIN_WAREHOUSE)->first()->appointee;

        $cbm = (($package->width / 100) * ($package->height / 100) * ($package->length / 100)) * $package->quantity;

        $arrival_date = $packingList->transports()->first()->drop_date->format('d-m-Y');

        return [
            $packingList->owner->reference,
            $marking,
            $warehouse->reference,
            $cbm,
            $package->description,
            $package->quantity,
            $arrival_date,
            ''
        ];
    }
}