pdfdokumente/source/modules/d3/pdfdocuments/src/Modules/Application/Model/pdfDocuments.php

<?php
namespace D3\PdfDocuments\Modules\Application\Model\dev;

use \OxidEsales\Eshop\Application\Model\Order;

interface albatros{
  public function setFilename($sContent, $target, $sFilename);
  public function setInvoiceNumber();
  public function setInvoiceDate();
  public function saveOrderOnChanges();
  public function getDeliveryNoteTemplate();
}

abstract class pdfDocuments implements albatros, \pdfDocuments_interface
{

  public function genPdf($sFilename, $iSelLang = 0, $target = 'I')
  {
    self::$_blIsAdmin = 0;

    $oSmarty = Registry::getUtilsView()->getSmarty();
    $oSmarty->assign('oConfig', Registry::getSession()->getConfig());
    $oSmarty->assign('oViewConf', Registry::getSession()->getConfig()->getActiveView()->getViewConfig());
    $oSmarty->assign('order', $this);
    $oSmarty->assign('shop', Registry::getSession()->getConfig()->getActiveShop());
    $oSmarty->assign('lang', Registry::getLang());

    $oUser = oxNew(User::Class);
    $oUser->load($this->getOrder()->getFieldData('oxuserid'));
    $oSmarty->assign('user', $oUser);

    $oPayment = oxNew(Payment::class);
    $oPayment->load($this->getOrder()->getFieldData('oxpaymenttype'));
    $oSmarty->assign('payment', $oPayment);

    $this->setInvoiceNumber();
    $this->setInvoiceDate();
    $this->saveOrderOnChanges();

    switch (Registry::getRequest()->getRequestParameter('pdftype')) {
      case ('dnote'):
      case ('dnote_without_logo'):
        $sContent = $oSmarty->fetch($this->getDeliveryNoteTemplate());
        break;
      default:
        $sContent = $oSmarty->fetch($this->getDeliveryNoteTemplate());
    }
  }

  /**
   * @param Order $order
   */
  public function setOrder(Order $order)
  {
    $this->oOrder = $order;
  }

  /**
   * @return OrderModel
   */
  public function getOrder()
  {
    return $this->oOrder;
  }

  public function setFilename($sContent, $target, $sFilename)
  {
    $ordernr = $this->getOrder()->getFieldData('oxordernr');
    $billnr = $this->getOrder()->getFieldData('oxbillnr');;

    $sFilename = str_replace($ordernr, $billnr, $sFilename);

    $oPdf = oxNew(Html2Pdf::class, 'P', 'A4', 'de');
    $oPdf->writeHTML($sContent);
    $oPdf->output($sFilename, $target);
  }

  public function setInvoiceNumber()
  {
    $this->blIsNewOrder = 0;

    if (!$this->getOrder()->getFieldData('oxbillnr')) {
      $this->getOrder()->assign(['oxbillnr' => $this->getOrder()->getNextBillNum()]);

      $this->blIsNewOrder = 1;
    }
  }

  public function setInvoiceDate()
  {
    if ($this->getOrder()->getFieldData('oxbilldate') == '0000-00-00') {
      $this->getOrder()->assign([date('Y-m-d', mktime(0, 0, 0, date('m'), date('d'), date('Y')))]);

      $this->blIsNewOrder = 1;
    }
  }

  public function saveOrderOnChanges()
  {
    if ($this->blIsNewOrder) {
      $this->getOrder()->save();
    }
  }

  abstract public function getDeliveryNoteTemplate();
}

class invoicePdf extends pdfDocuments{
  public function getDeliveryNoteTemplate(){
    return 'deliverynote.tpl';
  }
}

class deliverynotePdf extends pdfDocuments{
  public function getDeliveryNoteTemplate(){
    return 'invoice.tpl';
  }
}