From 973f49fabc60330dd082973cfd63d7bd25b560e3 Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Mon, 28 Aug 2023 17:14:04 +0200
Subject: [PATCH] DeliveryAdminWindow: Update KGNr when MgNr changes

---
 Elwig/Windows/DeliveryAdminWindow.xaml.cs | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/Elwig/Windows/DeliveryAdminWindow.xaml.cs b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
index 5be3bd6..3b5838a 100644
--- a/Elwig/Windows/DeliveryAdminWindow.xaml.cs
+++ b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
@@ -119,7 +119,7 @@ namespace Elwig.Windows {
         }
 
         private void Menu_Export_Bki_Click(object sender, RoutedEventArgs evt) {
-
+            // TODO export Traubentransportscheinliste
         }
 
         private void OnSecondPassed(object? sender, EventArgs? evt) {
@@ -483,6 +483,8 @@ namespace Elwig.Windows {
         private async Task<DeliveryPart> UpdateDeliveryPart(Delivery? d, DeliveryPart? p) {
             int year, did, dpnr;
             bool deliveryNew = (d == null), partNew = (p == null);
+            var originalMgNr = d?.MgNr;
+            var originalMemberKgNr = d?.Member?.DefaultKgNr;
             if (d == null) {
                 d = Context.CreateProxy<Delivery>();
                 year = Utils.CurrentNextSeason;
@@ -538,8 +540,6 @@ namespace Elwig.Windows {
             if (ManualWeighingReason != null)
                 p.Comment = (p.Comment != null ? $"{p.Comment} / " : "") + $"Begründung Handwiegung: {ManualWeighingReason}";
 
-            // TODO update KgNr when MgNr changes (if default is selected)
-
             EntityEntry<Delivery>? dEntry = null;
             EntityEntry<DeliveryPart>? pEntry = null;
             try {
@@ -554,6 +554,15 @@ namespace Elwig.Windows {
                 await Context.UpdateDeliveryPartAttributes(p, AttributesInput.ItemsSource.Cast<WineAttr>());
                 await Context.UpdateDeliveryPartModifiers(p, ModifiersInput.ItemsSource.Cast<Modifier>());
 
+                if (originalMgNr != null && originalMgNr.Value != d.MgNr) {
+                    // update origin (KgNr), if default is selected
+                    var newKgNr = (await Context.Members.FindAsync(d.MgNr))?.DefaultKgNr;
+                    foreach (var part in d.Parts.Where(part => part.DPNr != dpnr && part.KgNr == originalMemberKgNr)) {
+                        part.KgNr = newKgNr;
+                        Context.Update(part);
+                    }
+                }
+
                 await Context.SaveChangesAsync();
             } catch (Exception exc) {
                 if (dEntry != null) {