feat: multiple attachments for the order mails

locale.xml

@@ -619,6 +619,10 @@
             <de><![CDATA[Widerrufsrecht]]></de>
             <en><![CDATA[Cancellation Policy]]></en>
         </locale>
+        <locale name="order.settings.mails.attachments">
+            <de><![CDATA[Dateianhänge]]></de>
+            <en><![CDATA[File attachments]]></en>
+        </locale>
 
         <locale name="order.settings.failedPaymentProcedure,execute">
             <de><![CDATA[Bestellung ausführen]]></de>

settings.xml

@@ -42,14 +42,20 @@
                 <conf name="privacyPolicy">
                     <type><![CDATA[string]]></type>
                 </conf>
+
                 <!-- AGB -->
                 <conf name="termsAndConditions">
                     <type><![CDATA[string]]></type>
                 </conf>
+
                 <!-- Cancellation policy -->
                 <conf name="cancellationPolicy">
                     <type><![CDATA[string]]></type>
                 </conf>
+
+                <conf name="attachments">
+                    <type><![CDATA[string]]></type>
+                </conf>
             </section>
 
             <section name="orderStatus">
@@ -249,7 +255,15 @@
                                 <locale group="quiqqer/order" var="order.settings.mails.cancellationPolicy"/>
                             </text>
                         </input>
-
+                        <input type="text"
+                               data-qui="controls/projects/project/media/Select"
+                               data-qui-options-multiple="1"
+                               conf="mails.attachments"
+                        >
+                            <text>
+                                <locale group="quiqqer/order" var="order.settings.mails.attachments"/>
+                            </text>
+                        </input>
                     </settings>
 
                     <settings title="orderStatusSettings" name="orderStatusSettings">

src/QUI/ERP/Order/Mail.php

@@ -280,6 +280,7 @@ protected static function addOrderMailAttachments(QUI\Mail\Mailer $Mail)
         $privacyPolicy      = (int)$Config->getValue('mails', 'privacyPolicy');
         $termsAndConditions = (int)$Config->getValue('mails', 'termsAndConditions');
         $cancellationPolicy = (int)$Config->getValue('mails', 'cancellationPolicy');
+        $attachments        = $Config->getValue('mails', 'attachments');
 
         if ($privacyPolicy) {
             try {
@@ -316,6 +317,20 @@ protected static function addOrderMailAttachments(QUI\Mail\Mailer $Mail)
             } catch (QUI\Exception $Exception) {
             }
         }
+
+        if (!empty($attachments)) {
+            $attachments = explode(',', $attachments);
+            $Media       = QUI::getProjectManager()->getStandard()->getMedia();
+
+            foreach ($attachments as $attachment) {
+                try {
+                    $Item = $Media->get($attachment);
+                    $Mail->addAttachment($Item->getFullPath());
+                } catch (\Exception $Exception) {
+                    QUI\System\Log::addAlert('Order mail attachment file error :: '.$Exception->getMessage());
+                }
+            }
+        }
     }
 
     /**