final

move_fund_invoice_due_date.php

@@ -8,20 +8,32 @@ if (!defined("WHMCS"))
 use WHMCS\Database\Capsule;
 function get_grace() {
     $grace = Capsule::table('tblconfiguration')->where('setting', 'OrderDaysGrace')->first();
+    return $grace->value;
 }
 
-add_hook('PreInvoicingGenerateInvoiceItems', 1, function($vars) {
+add_hook('InvoiceCreation', 1, function($vars) {
     $grace = get_grace();
-
+    $invoice = localAPI('GetInvoice', ['invoiceid' => $vars['invoiceid']]);
+    if($invoice['duedate'] == $invoice['date']) {
+        array_shift($invoice);
+        $dateTime = date_create($invoice['duedate']);
+        date_add($dateTime,date_interval_create_from_date_string("$grace days"));
+        $invoice['duedate'] = date_format($dateTime, 'Y-m-d');
+        $result = localAPI('UpdateInvoice', $invoice);
+    }
+    if($result['result'] == 'success') {
+        return true;
+    }
+    
     logModuleCall(
-        'PreInvoicingGenerateInvoiceItems',
+        'InvoiceCreation',
         __FUNCTION__,
-        $vars,
-        "Debug",
-        $grace
+        $result,
+        "Hook Error",
+        $invoice
     );
-    
-    return true;
+
+    return false;
 });
 
 ?>