From 516ca587401d9349e63718c170d81c535b5bfddc Mon Sep 17 00:00:00 2001
From: Elias Fierke <fierke@mypapertown.de>
Date: Thu, 4 Jun 2026 07:52:08 +0200
Subject: [PATCH] [fix:] plz/pplz was not normalized during address creation

---
 Tasks/AddressCreation.cs | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/Tasks/AddressCreation.cs b/Tasks/AddressCreation.cs
index 0c937ec..b543a3b 100644
--- a/Tasks/AddressCreation.cs
+++ b/Tasks/AddressCreation.cs
@@ -104,8 +104,9 @@ public static class AddressCreator
         // Alternative A: pplz valid and city existing
         if (!string.IsNullOrEmpty(address.ort) && CheckPLZ(address.pplz, address.land))
         {
-            KasPerson.SetUsedPLZ(id, address.pplz);
-            string_address = address.pplz + " " + address.ort + "\n" + string_address;
+            string pplz = NormalizeGermanPLZ(address.pplz);
+            KasPerson.SetUsedPLZ(id, pplz);
+            string_address = pplz + " " + address.ort + "\n" + string_address;
             address_line_count++;
             if (!string.IsNullOrWhiteSpace(address.postfach))
             {
@@ -151,8 +152,9 @@ public static class AddressCreator
         } // Alternative B: plz valid and city existing 
         else if (!string.IsNullOrEmpty(address.ort) && CheckPLZ(address.plz, address.land))
         {
-            KasPerson.SetUsedPLZ(id, address.plz);
-            string_address = address.plz + " " + address.ort + "\n" + string_address;
+            string plz = NormalizeGermanPLZ(address.plz);
+            KasPerson.SetUsedPLZ(id, plz);
+            string_address = plz + " " + address.ort + "\n" + string_address;
             address_line_count++;
             if (!string.IsNullOrWhiteSpace(address.strasse))
             {
@@ -251,4 +253,23 @@ public static class AddressCreator
         // For non-German countries, accept any non-empty postal code
         return true;
     }
+    
+    public static string NormalizeGermanPLZ(string plz)
+    {
+        if(plz.Length == 5) return plz;
+        if(plz.Length > 5)
+        {
+            return plz.Substring(0, 5);
+        }
+
+        if (plz.Length < 5)
+        {
+            int toadd = 5 - plz.Length;
+            for (int i = 0; i < toadd; i++)
+            {
+                plz = "0" + plz;
+            }
+        }
+        return plz;
+    }
 }
\ No newline at end of file