exchange-2.0/app/Classes/Modules/Transactions/Processors/CreateInvoiceDocumentProcessor.php

<?php

namespace App\Classes\Modules\Transactions\Processors;

use App\Classes\Modules\Documents\Services\CreatesDocument;
use App\Classes\Modules\Documents\Services\CreatesFiles;
use App\Classes\Modules\Documents\DataTransferObjects\DocumentObject;
use App\Classes\ValueObjects\Constants\ApprovalStatus;
use Meneses\LaravelMpdf\Facades\LaravelMpdf;

class CreateInvoiceDocumentProcessor
{
    /** @var CreatesDocument */
    private $createsDocument;

    /** @var CreatesFiles */
    private $createsFile;

    /**
     * CreateInvoiceDocumentProcessor constructor.
     * @param CreatesDocument $createsDocument
     * @param CreatesFiles $createsFile
     */
    public function __construct(CreatesDocument $createsDocument, CreatesFiles $createsFile)
    {
        $this->createsDocument = $createsDocument;
        $this->createsFile = $createsFile;
    }

    /**
     * @return void
     */
    public function execute($transaction, $purchaseOrder, $supplier, $document_type)
    {
        $lowercaseDocumentType = strtolower($document_type);

        $order_pdf = LaravelMpdf::loadView('pages.pdfs.' . $lowercaseDocumentType, ['transaction' => $transaction, 'po_order_transaction' => $purchaseOrder, 'supplier' => $supplier]);
        $document_object = new DocumentObject(
            $document_type,
            [chunk_split('data:application/pdf;base64,' . base64_encode($order_pdf->output()))],
            '',
            ApprovalStatus::COMPLETED,
            $lowercaseDocumentType . 's'
        );

        $document = $this->createsDocument->execute($purchaseOrder->booking, $document_object);
        $this->createsFile->execute($document, $document_object);
    }
}