From c62947dacd1e1da76d1f1f47f15b6f296255ad54 Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Sat, 28 Sep 2024 19:54:50 +0200
Subject: [PATCH] DeliveryAdminWindow: Add DeliverySplittingDialog

---
 Elwig/Controls/UnitTextBox.xaml               |   2 +-
 Elwig/Dialogs/AbwertenDialog.xaml             |  56 ----
 Elwig/Dialogs/AbwertenDialog.xaml.cs          |  33 --
 Elwig/Dialogs/DeleteMemberDialog.xaml         |   4 +-
 Elwig/Dialogs/DeliveryExtractionDialog.xaml   |  57 ----
 .../Dialogs/DeliveryExtractionDialog.xaml.cs  |  37 ---
 Elwig/Dialogs/DeliverySplittingDialog.xaml    | 104 ++++++
 Elwig/Dialogs/DeliverySplittingDialog.xaml.cs | 163 ++++++++++
 Elwig/Helpers/Utils.cs                        |  11 +-
 Elwig/Services/DeliveryService.cs             | 298 +++++++++++++-----
 Elwig/Windows/DeliveryAdminWindow.xaml        |  52 ++-
 Elwig/Windows/DeliveryAdminWindow.xaml.cs     | 160 ++--------
 12 files changed, 530 insertions(+), 447 deletions(-)
 delete mode 100644 Elwig/Dialogs/AbwertenDialog.xaml
 delete mode 100644 Elwig/Dialogs/AbwertenDialog.xaml.cs
 delete mode 100644 Elwig/Dialogs/DeliveryExtractionDialog.xaml
 delete mode 100644 Elwig/Dialogs/DeliveryExtractionDialog.xaml.cs
 create mode 100644 Elwig/Dialogs/DeliverySplittingDialog.xaml
 create mode 100644 Elwig/Dialogs/DeliverySplittingDialog.xaml.cs

diff --git a/Elwig/Controls/UnitTextBox.xaml b/Elwig/Controls/UnitTextBox.xaml
index a2564e3..bf3667c 100644
--- a/Elwig/Controls/UnitTextBox.xaml
+++ b/Elwig/Controls/UnitTextBox.xaml
@@ -9,7 +9,7 @@
                             BorderThickness="{Binding Path=BorderThickness, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay}"
                             BorderBrush="{Binding Path=BorderBrush, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay}"
                             SnapsToDevicePixels="True">
-                        <Grid>
+                        <Grid Background="{Binding Path=Background, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay}">
                             <ScrollViewer x:Name="PART_ContentHost" VerticalAlignment="Bottom">
                                 <ScrollViewer.Margin>
                                     <Binding ElementName="UnitBlock" Path="ActualWidth">
diff --git a/Elwig/Dialogs/AbwertenDialog.xaml b/Elwig/Dialogs/AbwertenDialog.xaml
deleted file mode 100644
index 6289cb4..0000000
--- a/Elwig/Dialogs/AbwertenDialog.xaml
+++ /dev/null
@@ -1,56 +0,0 @@
-<Window x:Class="Elwig.Dialogs.AbwertenDialog"
-        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:Elwig.Dialogs"
-        ResizeMode="NoResize" ShowInTaskbar="False" Topmost="True"
-        WindowStartupLocation="CenterOwner"
-        FocusManager.FocusedElement="{Binding ElementName=WeightInput}"
-        Title="Teillieferung abwerten" Height="190" Width="400">
-    <Window.Resources>
-        <Style TargetType="Label">
-            <Setter Property="HorizontalAlignment" Value="Left"/>
-            <Setter Property="VerticalAlignment" Value="Top"/>
-            <Setter Property="Padding" Value="2,4,2,4"/>
-            <Setter Property="Height" Value="25"/>
-        </Style>
-        <Style TargetType="TextBox">
-            <Setter Property="HorizontalAlignment" Value="Stretch"/>
-            <Setter Property="VerticalAlignment" Value="Top"/>
-            <Setter Property="FontSize" Value="14"/>
-            <Setter Property="Padding" Value="2"/>
-            <Setter Property="Height" Value="25"/>
-            <Setter Property="TextWrapping" Value="NoWrap"/>
-        </Style>
-        <Style TargetType="Button">
-            <Setter Property="HorizontalAlignment" Value="Right"/>
-            <Setter Property="VerticalAlignment" Value="Bottom"/>
-            <Setter Property="Width" Value="100"/>
-            <Setter Property="Height" Value="25"/>
-        </Style>
-    </Window.Resources>
-    <Grid>
-        <Grid.ColumnDefinitions>
-            <ColumnDefinition Width="70"/>
-            <ColumnDefinition/>
-        </Grid.ColumnDefinitions>
-
-        <TextBlock Margin="10,10,10,10" Grid.ColumnSpan="2" TextWrapping="Wrap" TextAlignment="Center">
-            Welche Menge der Teillieferung <Run x:Name="TextLsNr" FontWeight="Bold" Text="20201010A000/1"/><LineBreak/>
-            von <Run x:Name="TextMember" FontWeight="Bold" Text="Max Mustermann"/><LineBreak/>
-            mit <Run x:Name="TextWeight" FontWeight="Bold" Text="1&#x202f;000&#x202f;kg"/> soll abgewertet werden?
-        </TextBlock>
-
-        <Label Content="Gewicht:" Margin="10,70,10,10"/>
-        <Grid Grid.Column="1" Width="70" Height="25" Margin="0,70,10,10" HorizontalAlignment="Left" VerticalAlignment="Top">
-            <TextBox x:Name="WeightInput" TextAlignment="Right" Padding="2,2,17,2"
-                     TextChanged="WeightInput_TextChanged"/>
-            <Label Content="kg" Margin="0,4,3,0" HorizontalAlignment="Right" FontSize="10" Padding="2,4,2,4"/>
-        </Grid>
-
-        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="10,10,115,10" Grid.Column="1" IsEnabled="False" IsDefault="True"
-                Click="ConfirmButton_Click"/>
-        <Button x:Name="CancelButton" Content="Abbrechen" Margin="10,10,10,10" Grid.Column="1" IsCancel="True"/>
-    </Grid>
-</Window>
diff --git a/Elwig/Dialogs/AbwertenDialog.xaml.cs b/Elwig/Dialogs/AbwertenDialog.xaml.cs
deleted file mode 100644
index 50396e9..0000000
--- a/Elwig/Dialogs/AbwertenDialog.xaml.cs
+++ /dev/null
@@ -1,33 +0,0 @@
-using Elwig.Helpers;
-using System.Windows;
-using System.Windows.Controls;
-
-namespace Elwig.Dialogs {
-    public partial class AbwertenDialog : Window {
-
-        public int Weight;
-
-        public AbwertenDialog(string lsnr, string name, int weight) {
-            Weight = weight;
-            InitializeComponent();
-            TextLsNr.Text = lsnr;
-            TextMember.Text = name;
-            TextWeight.Text = $"{weight:N0}{Utils.UnitSeparator}kg";
-        }
-
-        private void ConfirmButton_Click(object sender, RoutedEventArgs evt) {
-            DialogResult = true;
-            Weight = int.Parse(WeightInput.Text);
-            Close();
-        }
-
-        private void UpdateButtons() {
-            ConfirmButton.IsEnabled = int.TryParse(WeightInput.Text, out var w) && w > 0 && w <= Weight;
-        }
-
-        private void WeightInput_TextChanged(object sender, TextChangedEventArgs evt) {
-            Validator.CheckInteger(WeightInput, true, 5);
-            UpdateButtons();
-        }
-    }
-}
diff --git a/Elwig/Dialogs/DeleteMemberDialog.xaml b/Elwig/Dialogs/DeleteMemberDialog.xaml
index 1a21516..8fd7641 100644
--- a/Elwig/Dialogs/DeleteMemberDialog.xaml
+++ b/Elwig/Dialogs/DeleteMemberDialog.xaml
@@ -57,8 +57,8 @@
                   Checked="CheckBox_Changed" Unchecked="CheckBox_Changed"
                   IsChecked="{Binding DeletePaymentData}"/>
 
-        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="10,10,115,10" Grid.Column="1" IsEnabled="False"
+        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="10,10,115,10" IsEnabled="False"
                 Click="ConfirmButton_Click"/>
-        <Button x:Name="CancelButton" Content="Abbrechen" Margin="10,10,10,10" Grid.Column="1" IsCancel="True"/>
+        <Button x:Name="CancelButton" Content="Abbrechen" Margin="10,10,10,10" IsCancel="True"/>
     </Grid>
 </Window>
diff --git a/Elwig/Dialogs/DeliveryExtractionDialog.xaml b/Elwig/Dialogs/DeliveryExtractionDialog.xaml
deleted file mode 100644
index 4e74b4d..0000000
--- a/Elwig/Dialogs/DeliveryExtractionDialog.xaml
+++ /dev/null
@@ -1,57 +0,0 @@
-<Window x:Class="Elwig.Dialogs.DeliveryExtractionDialog"
-        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:Elwig.Dialogs"
-        ResizeMode="NoResize" ShowInTaskbar="False" Topmost="True"
-        WindowStartupLocation="CenterOwner"
-        FocusManager.FocusedElement="{Binding ElementName=WeightInput}"
-        Title="Teillieferung extrahieren" Height="210" Width="380">
-    <Window.Resources>
-        <Style TargetType="Label">
-            <Setter Property="HorizontalAlignment" Value="Left"/>
-            <Setter Property="VerticalAlignment" Value="Top"/>
-            <Setter Property="Padding" Value="2,4,2,4"/>
-            <Setter Property="Height" Value="25"/>
-        </Style>
-        <Style TargetType="TextBox">
-            <Setter Property="HorizontalAlignment" Value="Stretch"/>
-            <Setter Property="VerticalAlignment" Value="Top"/>
-            <Setter Property="FontSize" Value="14"/>
-            <Setter Property="Padding" Value="2"/>
-            <Setter Property="Height" Value="25"/>
-            <Setter Property="TextWrapping" Value="NoWrap"/>
-        </Style>
-        <Style TargetType="Button">
-            <Setter Property="HorizontalAlignment" Value="Right"/>
-            <Setter Property="VerticalAlignment" Value="Bottom"/>
-            <Setter Property="Width" Value="100"/>
-            <Setter Property="Height" Value="25"/>
-        </Style>
-    </Window.Resources>
-    <Grid>
-        <Grid.ColumnDefinitions>
-            <ColumnDefinition Width="200"/>
-            <ColumnDefinition/>
-        </Grid.ColumnDefinitions>
-
-        <TextBlock Margin="10,10,0,10" TextWrapping="Wrap">
-            Was soll mit der Teillieferung <Run x:Name="TextLsNr" FontWeight="Bold" Text="20201010A000/1"/><LineBreak/>
-            von <Run x:Name="TextMember" FontWeight="Bold" Text="Max Mustermann"/> geschehen?
-        </TextBlock>
-        <RadioButton x:Name="NewDeliveryButton" Content="Neue Lieferung erstellen"
-                     Margin="10,80,0,10" HorizontalAlignment="Left" VerticalAlignment="Top"
-                     Checked="Selection_Changed" Unchecked="Selection_Changed"/>
-        <RadioButton x:Name="AddToDeliveryButton" Content="Zu Lieferung hinzufügen"
-                     Margin="10,100,0,10" HorizontalAlignment="Left" VerticalAlignment="Top"
-                     Checked="Selection_Changed" Unchecked="Selection_Changed"/>
-
-        <ListBox x:Name="DeliveryList" Grid.Column="1" Margin="10,10,10,45"
-                 SelectionChanged="DeliveryList_SelectionChanged"/>
-
-        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="10,10,115,10" Grid.ColumnSpan="2" IsEnabled="False" IsDefault="True"
-                Click="ConfirmButton_Click"/>
-        <Button x:Name="CancelButton" Content="Abbrechen" Margin="10,10,10,10" Grid.ColumnSpan="2" IsCancel="True"/>
-    </Grid>
-</Window>
diff --git a/Elwig/Dialogs/DeliveryExtractionDialog.xaml.cs b/Elwig/Dialogs/DeliveryExtractionDialog.xaml.cs
deleted file mode 100644
index b2b8966..0000000
--- a/Elwig/Dialogs/DeliveryExtractionDialog.xaml.cs
+++ /dev/null
@@ -1,37 +0,0 @@
-using System.Collections.Generic;
-using System.Windows;
-
-namespace Elwig.Dialogs {
-    public partial class DeliveryExtractionDialog : Window {
-
-        public string? AddTo;
-
-        public DeliveryExtractionDialog(string lsnr, string name, bool single, IEnumerable<string> lsnrs) {
-            InitializeComponent();
-            TextLsNr.Text = lsnr;
-            TextMember.Text = name;
-            NewDeliveryButton.IsEnabled = !single;
-            DeliveryList.IsEnabled = false;
-            DeliveryList.ItemsSource = lsnrs;
-        }
-
-        private void ConfirmButton_Click(object sender, RoutedEventArgs evt) {
-            DialogResult = true;
-            AddTo = NewDeliveryButton.IsChecked == true ? "new" : DeliveryList.SelectedItem as string;
-            Close();
-        }
-
-        private void UpdateButtons() {
-            ConfirmButton.IsEnabled = NewDeliveryButton.IsChecked == true || (AddToDeliveryButton.IsChecked == true && DeliveryList.SelectedItem != null);
-            DeliveryList.IsEnabled = AddToDeliveryButton.IsChecked == true;
-        }
-
-        private void Selection_Changed(object sender, RoutedEventArgs evt) {
-            UpdateButtons();
-        }
-
-        private void DeliveryList_SelectionChanged(object sender, RoutedEventArgs evt) {
-            UpdateButtons();
-        }
-    }
-}
diff --git a/Elwig/Dialogs/DeliverySplittingDialog.xaml b/Elwig/Dialogs/DeliverySplittingDialog.xaml
new file mode 100644
index 0000000..52a554a
--- /dev/null
+++ b/Elwig/Dialogs/DeliverySplittingDialog.xaml
@@ -0,0 +1,104 @@
+<local:ContextWindow
+        x:Class="Elwig.Dialogs.DeliverySplittingDialog"
+        AutomationProperties.AutomationId="DeliverySplittingDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:local="clr-namespace:Elwig.Windows"
+        xmlns:ctrl="clr-namespace:Elwig.Controls"
+        ResizeMode="NoResize" ShowInTaskbar="False" Topmost="True"
+        WindowStartupLocation="CenterOwner"
+        DataContext="{Binding RelativeSource={RelativeSource Self}}"
+        Title="Lieferung abwerten oder aufteilen" Height="400" Width="600">
+    <Window.Resources>
+        <Style TargetType="Button">
+            <Setter Property="HorizontalAlignment" Value="Right"/>
+            <Setter Property="VerticalAlignment" Value="Bottom"/>
+            <Setter Property="Width" Value="100"/>
+            <Setter Property="Height" Value="25"/>
+        </Style>
+    </Window.Resources>
+    <Grid>
+
+        <RadioButton x:Name="DepreciateModeInput" GroupName="ModeInput" Content="Abwerten" Margin="15,10,10,10" IsChecked="True"
+                     VerticalAlignment="Top" HorizontalAlignment="Left"
+                     Checked="ModeInput_Changed"/>
+        <RadioButton x:Name="MemberModeInput" GroupName="ModeInput" Content="Auf Mitglied übertragen" Margin="15,30,10,10"
+                     VerticalAlignment="Top" HorizontalAlignment="Left"
+                     Checked="ModeInput_Changed"/>
+        <RadioButton x:Name="DeliveryModeInput" GroupName="ModeInput" Content="Zu anderer Lieferung hinzufügen" Margin="15,50,10,10"
+                     VerticalAlignment="Top" HorizontalAlignment="Left"
+                     Checked="ModeInput_Changed"/>
+
+        <TextBox x:Name="MgNrInput" FontSize="14" Padding="2" Visibility="Hidden"
+                 Width="48" Margin="220,10,0,0" Height="25" TextAlignment="Right"
+                 TextChanged="MgNrInput_TextChanged"
+                 VerticalAlignment="Top" HorizontalAlignment="Left"/>
+        <ComboBox x:Name="MemberInput" FontSize="14" Visibility="Hidden"
+                  Margin="273,10,40,10" IsEditable="True" Height="25"
+                  ItemTemplate="{StaticResource MemberAdminNameTemplate}" TextSearch.TextPath="AdministrativeName"
+                  SelectionChanged="MemberInput_SelectionChanged"
+                  VerticalAlignment="Top" HorizontalAlignment="Stretch"/>
+        <Button x:Name="MemberReferenceButton" Height="25" Width="25" FontFamily="Segoe MDL2 Assets" Content="&#xEE35;" Padding="0"
+                Margin="10,10,10,10" VerticalAlignment="Top" HorizontalAlignment="Right" ToolTip="Zu Mitglied springen" FontSize="14" Visibility="Hidden"
+                Click="MemberReferenceButton_Click"/>
+
+        <ComboBox x:Name="DeliveryInput" FontSize="14" Visibility="Hidden"
+                  Margin="220,10,10,10" Height="25"
+                  TextSearch.TextPath="LsNr"
+                  SelectionChanged="DeliveryInput_SelectionChanged"
+                  VerticalAlignment="Top" HorizontalAlignment="Stretch">
+            <ComboBox.ItemTemplate>
+                <DataTemplate>
+                    <StackPanel Orientation="Horizontal">
+                        <TextBlock Text="{Binding LsNr}" Width="100"/>
+                        <TextBlock Text="{Binding Weight, StringFormat='{}{0:N0} kg'}" Width="80" TextAlignment="Right" Margin="0,0,10,0"/>
+                        <TextBlock Text="{Binding Member.AdministrativeName}"/>
+                    </StackPanel>
+                </DataTemplate>
+            </ComboBox.ItemTemplate>
+        </ComboBox>
+
+        <TextBlock x:Name="InfoBlock" Margin="230,45,10,10" FontSize="14" TextAlignment="Right"
+                   VerticalAlignment="Top" HorizontalAlignment="Stretch"
+                   Text="Insgesamt 0 kg / 0 kg ausgewählt."/>
+
+        <ListBox x:Name="DeliveryPartList" Margin="10,75,10,40" ItemsSource="{Binding DeliveryParts, Mode=TwoWay}">
+            <ListBox.ItemContainerStyle>
+                <Style TargetType="{x:Type ListBoxItem}">
+                    <Setter Property="Focusable" Value="False"/>
+                </Style>
+            </ListBox.ItemContainerStyle>
+            <ListBox.ItemTemplate>
+                <DataTemplate>
+                    <StackPanel Orientation="Horizontal">
+                        <TextBlock Text="{Binding Part.DPNr}" Width="20" TextAlignment="Right"
+                                   VerticalAlignment="Center"  Margin="0,0,5,0" FontSize="14"/>
+                        <TextBlock Text="{Binding Part.SortId}" Width="40" TextAlignment="Center"
+                                   VerticalAlignment="Center" Margin="0,0,0,0" FontSize="14"/>
+                        <TextBlock Text="{Binding Part.Kmw, StringFormat='{}{0:N1}°'}" Width="40" TextAlignment="Right" Padding="0,0,10,0"
+                                   VerticalAlignment="Center"/>
+                        <TextBlock Text="{Binding Part.QualId}" Width="30"
+                                   VerticalAlignment="Center"/>
+                        <TextBlock Text="{Binding Part.Weight, StringFormat='{}{0:N0} kg'}" Width="70" TextAlignment="Right"
+                                   VerticalAlignment="Center" Margin="0,0,10,0" FontSize="14"/>
+                        <TextBlock Text="{Binding Part.Attribute.Name}" Width="60"
+                                   VerticalAlignment="Center"/>
+                        <TextBlock Text="{Binding Part.Cultivation.Name}" Width="50"
+                                   VerticalAlignment="Center"/>
+                        <CheckBox IsChecked="{Binding SplitCompletely, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Content="Vollständig" Tag="{Binding Part.DPNr}"
+                                  VerticalAlignment="Center" Margin="20,0,5,0"
+                                  Checked="SplitCompletelyInput_Changed" Unchecked="SplitCompletelyInput_Changed"/>
+                        <ctrl:UnitTextBox Text="{Binding SplitWeightString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Unit="kg" Width="70" Height="25" IsEnabled="{Binding SplitWeightEnabled}" Tag="{Binding Part.DPNr}"
+                                          VerticalAlignment="Center" Margin="5,0,5,0" FontSize="14" Padding="2" Background="White"
+                                          TextChanged="SplitWeightInput_TextChanged"/>
+                    </StackPanel>
+                </DataTemplate>
+            </ListBox.ItemTemplate>
+        </ListBox>
+
+        <Button x:Name="ConfirmButton" Content="Bestätigen" Margin="10,10,115,10" IsEnabled="False"
+                Click="ConfirmButton_Click"/>
+        <Button x:Name="CancelButton" Content="Abbrechen" Margin="10,10,10,10" IsCancel="True"/>
+    </Grid>
+</local:ContextWindow>
diff --git a/Elwig/Dialogs/DeliverySplittingDialog.xaml.cs b/Elwig/Dialogs/DeliverySplittingDialog.xaml.cs
new file mode 100644
index 0000000..3308549
--- /dev/null
+++ b/Elwig/Dialogs/DeliverySplittingDialog.xaml.cs
@@ -0,0 +1,163 @@
+using Elwig.Helpers;
+using Elwig.Models.Entities;
+using Elwig.Windows;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+
+namespace Elwig.Dialogs {
+    public partial class DeliverySplittingDialog : ContextWindow {
+
+        public class Row {
+            public DeliveryPart Part { get; set; }
+            public bool SplitCompletely { get; set; }
+            public string? SplitWeightString { get; set; }
+            public int? SplitWeight {
+                get => int.TryParse(SplitWeightString, out var v) ? v : null;
+                set => SplitWeightString = $"{value}";
+            }
+            public bool SplitWeightEnabled { get; set; }
+        }
+
+        private readonly Delivery _delivery;
+
+        public int? MgNr { get; set; }
+        public string? LsNr { get; set; }
+        public int[]? Weights => DeliveryParts.Select(r => r.SplitCompletely ? r.Part.Weight : r.SplitWeight ?? 0).ToArray();
+
+        public ObservableCollection<Row> DeliveryParts { get; set; }
+
+        public DeliverySplittingDialog(Delivery d) {
+            _delivery = d;
+            DeliveryParts = new(d.Parts.Select(p => new Row {
+                Part = p,
+                SplitCompletely = false,
+                SplitWeight = null,
+                SplitWeightEnabled = true,
+            }).ToList());
+            InitializeComponent();
+        }
+
+        protected override async Task OnRenewContext(AppDbContext ctx) {
+            ControlUtils.RenewItemsSource(MemberInput, await ctx.Members
+                .Where(m => m.IsActive)
+                .OrderBy(m => m.Name)
+                .ThenBy(m => m.GivenName)
+                .ToListAsync());
+            ControlUtils.RenewItemsSource(DeliveryInput, await ctx.Deliveries
+                .Where(d => d.DateString == $"{_delivery.Date:yyyy-MM-dd}" && d.ZwstId == _delivery.ZwstId)
+                .OrderBy(d => d.LsNr)
+                .Include(d => d.Member)
+                .Include(d => d.Parts)
+                .ToListAsync());
+            if (DeliveryInput.SelectedItem == null)
+                ControlUtils.SelectItem(DeliveryInput, _delivery);
+            CheckValidity();
+        }
+
+        private void ConfirmButton_Click(object sender, RoutedEventArgs evt) {
+            if (DepreciateModeInput.IsChecked == true) {
+                MgNr = null;
+                LsNr = null;
+            } else if (MemberModeInput.IsChecked == true) {
+                MgNr = ((Member)MemberInput.SelectedItem).MgNr;
+                LsNr = null;
+            } else if (DeliveryModeInput.IsChecked == true) {
+                MgNr = null;
+                LsNr = ((Delivery)DeliveryInput.SelectedItem).LsNr;
+            }
+            DialogResult = true;
+            Close();
+        }
+
+        private void ModeInput_Changed(object sender, RoutedEventArgs evt) {
+            if (!IsLoaded) return;
+            CheckValidity();
+            if (DepreciateModeInput.IsChecked == true) {
+                MgNrInput.Visibility = Visibility.Hidden;
+                MemberInput.Visibility = Visibility.Hidden;
+                MemberReferenceButton.Visibility = Visibility.Hidden;
+                DeliveryInput.Visibility = Visibility.Hidden;
+            } else if (MemberModeInput.IsChecked == true) {
+                MgNrInput.Visibility = Visibility.Visible;
+                MemberInput.Visibility = Visibility.Visible;
+                MemberReferenceButton.Visibility = Visibility.Visible;
+                DeliveryInput.Visibility = Visibility.Hidden;
+            } else if (DeliveryModeInput.IsChecked == true) {
+                MgNrInput.Visibility = Visibility.Hidden;
+                MemberInput.Visibility = Visibility.Hidden;
+                MemberReferenceButton.Visibility = Visibility.Hidden;
+                DeliveryInput.Visibility = Visibility.Visible;
+            }
+        }
+
+        private void CheckValidity() {
+            var weight = DeliveryParts.Sum(r => r.SplitCompletely ? r.Part.Weight : r.SplitWeight ?? 0);
+            var total = DeliveryParts.Sum(r => r.Part.Weight);
+            InfoBlock.Text = $"Insgesamt {weight:N0} kg / {total:N0} kg ausgewählt.";
+            ConfirmButton.IsEnabled = DeliveryParts.Any(r => r.SplitCompletely || r.SplitWeight > 0) && (
+                DepreciateModeInput.IsChecked == true ||
+                (MemberModeInput.IsChecked == true && MemberInput.SelectedItem != null && !DeliveryParts.All(r => r.SplitCompletely)) ||
+                (DeliveryModeInput.IsChecked == true && DeliveryInput.SelectedItem != null));
+        }
+
+        private void MgNrInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            var res = Validator.CheckMgNr((TextBox)sender, true);
+            var text = MgNrInput.Text;
+            var caret = MgNrInput.CaretIndex;
+            ControlUtils.SelectItemWithPk(MemberInput, res.IsValid ? int.Parse(MgNrInput.Text) : null);
+            MgNrInput.Text = text;
+            MgNrInput.CaretIndex = caret;
+        }
+
+        private void MemberInput_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
+            var m = MemberInput.SelectedItem as Member;
+            MgNrInput.Text = m?.MgNr.ToString();
+            CheckValidity();
+        }
+
+        private void MemberReferenceButton_Click(object sender, RoutedEventArgs evt) {
+            if (MemberInput.SelectedItem is not Member m) return;
+            App.FocusMember(m.MgNr);
+        }
+
+        private void DeliveryInput_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
+            CheckValidity();
+        }
+
+        private void SplitCompletelyInput_Changed(object sender, RoutedEventArgs evt) {
+            var checkbox = (CheckBox)sender;
+            var dpnr = int.Parse(checkbox.Tag.ToString()!);
+            var row = DeliveryParts.First(d => d.Part.DPNr == dpnr);
+            if (checkbox.IsChecked == true) {
+                row.SplitWeightEnabled = false;
+                row.SplitWeight = row.Part.Weight;
+            } else if (checkbox.IsChecked == false) {
+                row.SplitWeightEnabled = true;
+                row.SplitWeight = null;
+            }
+            CollectionViewSource.GetDefaultView(DeliveryParts).Refresh();
+            CheckValidity();
+        }
+
+        private void SplitWeightInput_TextChanged(object sender, TextChangedEventArgs evt) {
+            var textbox = (TextBox)sender;
+            Validator.CheckInteger(textbox, false, 6);
+            var dpnr = int.Parse(textbox.Tag.ToString()!);
+            var row = DeliveryParts.First(d => d.Part.DPNr == dpnr);
+            var w = int.TryParse(textbox.Text, out var v) ? v : (int?)null;
+            if (w >= row.Part.Weight) {
+                row.SplitCompletely = true;
+                row.SplitWeightEnabled = false;
+                row.SplitWeight = row.Part.Weight;
+                CollectionViewSource.GetDefaultView(DeliveryParts).Refresh();
+            }
+            CheckValidity();
+        }
+    }
+}
diff --git a/Elwig/Helpers/Utils.cs b/Elwig/Helpers/Utils.cs
index 4398400..f4a3703 100644
--- a/Elwig/Helpers/Utils.cs
+++ b/Elwig/Helpers/Utils.cs
@@ -267,9 +267,9 @@ namespace Elwig.Helpers {
             return d.ShowDialog() == true ? (d.Weight, d.Reason) : null;
         }
 
-        public static int? ShowAbwertenDialog(string lsnr, string name, int weight) {
-            var d = new AbwertenDialog(lsnr, name, weight);
-            return d.ShowDialog() == true ? d.Weight : null;
+        public static (string?, int[])? ShowDeliverySplittingDialog(Delivery delivery) {
+            var d = new DeliverySplittingDialog(delivery);
+            return d.ShowDialog() == true ? (d.MgNr?.ToString() ?? d.LsNr, d.Weights ?? []) : null;
         }
 
         public static double? ShowLinearPriceIncreaseDialog() {
@@ -277,11 +277,6 @@ namespace Elwig.Helpers {
             return d.ShowDialog() == true ? d.Price : null;
         }
 
-        public static string? ShowDeliveryExtractionDialog(string lsnr, string name, bool single, IEnumerable<string> lsnrs) {
-            var d = new DeliveryExtractionDialog(lsnr, name, single, lsnrs);
-            return d.ShowDialog() == true ? d.AddTo : null;
-        }
-
         public static Footer GenerateFooter(string lineBreak, string seperator) {
             return new Footer(lineBreak, seperator);
         }
diff --git a/Elwig/Services/DeliveryService.cs b/Elwig/Services/DeliveryService.cs
index 2540894..2e3bfd1 100644
--- a/Elwig/Services/DeliveryService.cs
+++ b/Elwig/Services/DeliveryService.cs
@@ -430,103 +430,229 @@ namespace Elwig.Services {
         }
 
         public static async Task<DeliveryPart> UpdateDeliveryPart(this DeliveryAdminViewModel vm, int? oldYear, int? oldDid, int? oldDpnr, bool dateHasChanged, bool timeHasChanged, bool timeIsDefault) {
-            using var ctx = new AppDbContext();
+            DeliveryPart p;
 
-            int year = oldYear ?? Utils.CurrentYear;
-            int did = oldDid ?? await ctx.NextDId(year);
-            int dpnr = oldDpnr ?? await ctx.NextDPNr(year, did);
+            using (var ctx = new AppDbContext()) {
+                int year = oldYear ?? Utils.CurrentYear;
+                int did = oldDid ?? await ctx.NextDId(year);
+                int dpnr = oldDpnr ?? await ctx.NextDPNr(year, did);
 
-            var oldDelivery = await ctx.Deliveries.FindAsync(year, did);
-            bool deliveryNew = (oldDid == null);
-            bool partNew = (oldDpnr == null);
-            var originalMgNr = oldDelivery?.MgNr;
-            var originalMemberKgNr = oldDelivery?.Member.DefaultKgNr;
+                var oldDelivery = await ctx.Deliveries.FindAsync(year, did);
+                bool deliveryNew = (oldDid == null);
+                bool partNew = (oldDpnr == null);
+                var originalMgNr = oldDelivery?.MgNr;
+                var originalMemberKgNr = oldDelivery?.Member.DefaultKgNr;
 
-            var date = DateOnly.ParseExact(vm.Date!, "dd.MM.yyyy");
-            int? newLnr = (deliveryNew || dateHasChanged) ? await ctx.NextLNr(date, vm.Branch!.ZwstId) : null;
-            string? newLsNr = (newLnr != null) ? Utils.GenerateLsNr(date, vm.Branch!.ZwstId, newLnr.Value) : null;
+                var date = DateOnly.ParseExact(vm.Date!, "dd.MM.yyyy");
+                int? newLnr = (deliveryNew || dateHasChanged) ? await ctx.NextLNr(date, vm.Branch!.ZwstId) : null;
+                string? newLsNr = (newLnr != null) ? Utils.GenerateLsNr(date, vm.Branch!.ZwstId, newLnr.Value) : null;
 
-            string? newTimeString = null;
-            if (partNew && timeIsDefault) {
-                newTimeString = DateTime.Now.ToString("HH:mm:ss");
-            } else if (partNew || timeHasChanged) {
-                newTimeString = string.IsNullOrEmpty(vm.Time) ? null : vm.Time + ":00";
-            }
-
-            var d = new Delivery {
-                Year = year,
-                DId = did,
-                DateString = $"{date:yyyy-MM-dd}",
-                TimeString = newTimeString ?? oldDelivery?.TimeString,
-                LNr = newLnr ?? oldDelivery!.LNr,
-                ZwstId = vm.Branch!.ZwstId,
-                LsNr = newLsNr ?? vm.LsNr!,
-                MgNr = (int)vm.MgNr!,
-                Comment = string.IsNullOrEmpty(vm.Comment) ? null : vm.Comment,
-            };
-
-            var p = new DeliveryPart {
-                Year = year,
-                DId = did,
-                DPNr = dpnr,
-
-                SortId = vm.WineVar!.SortId,
-                AttrId = vm.WineAttr?.AttrId,
-                CultId = vm.WineCult?.CultId,
-                Kmw = (double)vm.GradationKmw!,
-                QualId = vm.WineQualityLevel!.QualId,
-                HkId = vm.WineOrigin!.HkId,
-                KgNr = vm.WineKg?.KgNr,
-                RdNr = vm.WineRd?.RdNr,
-
-                IsNetWeight = vm.IsNetWeight,
-                IsHandPicked = vm.IsHandPicked,
-                IsLesewagen = vm.IsLesewagen,
-                IsGebunden = vm.IsGebunden,
-                Temperature = vm.Temperature,
-                Acid = vm.Acid,
-                Comment = string.IsNullOrEmpty(vm.PartComment) ? null : vm.PartComment,
-
-                Weight = (int)vm.Weight!,
-                IsManualWeighing = vm.IsManualWeighing,
-                ScaleId = vm.ScaleId,
-                WeighingData = vm.WeighingData,
-                WeighingReason = vm.ManualWeighingReason,
-            };
-
-            if (oldDelivery != null && ctx.Entry(oldDelivery) is EntityEntry<Delivery> entry) {
-                entry.State = EntityState.Detached;
-            }
-            if (!deliveryNew) {
-                ctx.Update(d);
-            } else {
-                ctx.Add(d);
-            }
-            if (!partNew) {
-                ctx.Update(p);
-            } else {
-                ctx.Add(p);
-            }
-
-            ctx.UpdateDeliveryPartModifiers(p, await ctx.DeliveryPartModifiers
-                .Where(m => m.Year == p.Year && m.DId == p.DId && m.DPNr == p.DPNr)
-                .Select(m => m.Modifier)
-                .ToListAsync(), vm.Modifiers);
-
-            if (originalMgNr != null && originalMgNr.Value != d.MgNr) {
-                // update origin (KgNr), if default is selected
-                var newKgNr = (await ctx.Members.FindAsync(d.MgNr))?.DefaultKgNr;
-                foreach (var part in d.Parts.Where(part => part.DPNr != dpnr && part.KgNr == originalMemberKgNr)) {
-                    part.KgNr = newKgNr;
-                    ctx.Update(part);
+                string? newTimeString = null;
+                if (partNew && timeIsDefault) {
+                    newTimeString = DateTime.Now.ToString("HH:mm:ss");
+                } else if (partNew || timeHasChanged) {
+                    newTimeString = string.IsNullOrEmpty(vm.Time) ? null : vm.Time + ":00";
                 }
+
+                var d = new Delivery {
+                    Year = year,
+                    DId = did,
+                    DateString = $"{date:yyyy-MM-dd}",
+                    TimeString = newTimeString ?? oldDelivery?.TimeString,
+                    LNr = newLnr ?? oldDelivery!.LNr,
+                    ZwstId = vm.Branch!.ZwstId,
+                    LsNr = newLsNr ?? vm.LsNr!,
+                    MgNr = (int)vm.MgNr!,
+                    Comment = string.IsNullOrEmpty(vm.Comment) ? null : vm.Comment,
+                };
+
+                p = new DeliveryPart {
+                    Year = year,
+                    DId = did,
+                    DPNr = dpnr,
+
+                    SortId = vm.WineVar!.SortId,
+                    AttrId = vm.WineAttr?.AttrId,
+                    CultId = vm.WineCult?.CultId,
+                    Kmw = (double)vm.GradationKmw!,
+                    QualId = vm.WineQualityLevel!.QualId,
+                    HkId = vm.WineOrigin!.HkId,
+                    KgNr = vm.WineKg?.KgNr,
+                    RdNr = vm.WineRd?.RdNr,
+
+                    IsNetWeight = vm.IsNetWeight,
+                    IsHandPicked = vm.IsHandPicked,
+                    IsLesewagen = vm.IsLesewagen,
+                    IsGebunden = vm.IsGebunden,
+                    Temperature = vm.Temperature,
+                    Acid = vm.Acid,
+                    Comment = string.IsNullOrEmpty(vm.PartComment) ? null : vm.PartComment,
+
+                    Weight = (int)vm.Weight!,
+                    IsManualWeighing = vm.IsManualWeighing,
+                    ScaleId = vm.ScaleId,
+                    WeighingData = vm.WeighingData,
+                    WeighingReason = vm.ManualWeighingReason,
+                };
+
+                if (oldDelivery != null && ctx.Entry(oldDelivery) is EntityEntry<Delivery> entry) {
+                    entry.State = EntityState.Detached;
+                }
+                if (!deliveryNew) {
+                    ctx.Update(d);
+                } else {
+                    ctx.Add(d);
+                }
+                if (!partNew) {
+                    ctx.Update(p);
+                } else {
+                    ctx.Add(p);
+                }
+
+                ctx.UpdateDeliveryPartModifiers(p, await ctx.DeliveryPartModifiers
+                    .Where(m => m.Year == p.Year && m.DId == p.DId && m.DPNr == p.DPNr)
+                    .Select(m => m.Modifier)
+                    .ToListAsync(), vm.Modifiers);
+
+                if (originalMgNr != null && originalMgNr.Value != d.MgNr) {
+                    // update origin (KgNr), if default is selected
+                    var newKgNr = (await ctx.Members.FindAsync(d.MgNr))?.DefaultKgNr;
+                    foreach (var part in d.Parts.Where(part => part.DPNr != dpnr && part.KgNr == originalMemberKgNr)) {
+                        part.KgNr = newKgNr;
+                        ctx.Update(part);
+                    }
+                }
+
+                await ctx.SaveChangesAsync();
             }
 
-            await ctx.SaveChangesAsync();
+            App.HintContextChange();
 
             return p;
         }
 
+        public static async Task<Delivery> SplitDeliveryToMember(int year, int did, int[] weights, int mgnr) {
+            Delivery n;
+
+            using (var ctx = new AppDbContext()) {
+                bool anyLeft = false;
+                var d = (await ctx.Deliveries.FindAsync(year, did))!;
+                var lnr = await ctx.NextLNr(d.Date, d.ZwstId);
+                n = new Delivery {
+                    Year = year,
+                    DId = await ctx.NextDId(d.Year),
+                    DateString = d.DateString,
+                    TimeString = d.TimeString,
+                    ZwstId = d.ZwstId,
+                    LNr = lnr,
+                    LsNr = Utils.GenerateLsNr(d.Date, d.ZwstId, lnr),
+                    MgNr = mgnr,
+                    Comment = d.Comment,
+                };
+                ctx.Add(n);
+                await ctx.SaveChangesAsync();
+
+                var dpnr = 1;
+                foreach (var (p, w) in d.Parts.ToList().Zip(weights)) {
+                    if (w <= 0) {
+                        anyLeft = true;
+                        continue;
+                    } else if (w >= p.Weight) {
+                        await ctx.Database.ExecuteSqlAsync($"UPDATE delivery_part SET year = {n.Year}, did = {n.DId}, dpnr = {dpnr++} WHERE (year, did, dpnr) = ({p.Year}, {p.DId}, {p.DPNr})");
+                    } else {
+                        anyLeft = true;
+                        p.Weight -= w;
+                        ctx.Update(p);
+                        var s = ctx.CreateProxy<DeliveryPart>();
+                        var values = ctx.Entry(p).CurrentValues;
+                        ctx.Entry(s).CurrentValues.SetValues(values);
+                        s.Year = n.Year;
+                        s.DId = n.DId;
+                        s.DPNr = dpnr++;
+                        s.Weight = w;
+                        ctx.Add(s);
+                    }
+                }
+
+                await ctx.SaveChangesAsync();
+                if (!anyLeft)
+                    await ctx.Database.ExecuteSqlAsync($"DELETE FROM delivery WHERE (year, did) = ({d.Year}, {d.DId})");
+            }
+
+            App.HintContextChange();
+
+            return n;
+        }
+
+        public static async Task<Delivery> SplitDeliveryToLsNr(int year, int did, int[] weights, string lsnr) {
+            Delivery n;
+
+            using (var ctx = new AppDbContext()) {
+                var anyLeft = false;
+                n = (await ctx.Deliveries.FirstAsync(d => d.LsNr == lsnr))!;
+                var d = (await ctx.Deliveries.FindAsync(year, did))!;
+                var dpnr = await ctx.NextDPNr(n.Year, n.DId);
+                foreach (var (p, w) in d.Parts.ToList().Zip(weights)) {
+                    if (w <= 0) {
+                        anyLeft = true;
+                        continue;
+                    } else if (w >= p.Weight) {
+                        await ctx.Database.ExecuteSqlAsync($"UPDATE delivery_part SET year = {n.Year}, did = {n.DId}, dpnr = {dpnr++} WHERE (year, did, dpnr) = ({p.Year}, {p.DId}, {p.DPNr})");
+                    } else {
+                        anyLeft = true;
+                        p.Weight -= w;
+                        ctx.Update(p);
+                        var s = ctx.CreateProxy<DeliveryPart>();
+                        var values = ctx.Entry(p).CurrentValues;
+                        ctx.Entry(s).CurrentValues.SetValues(values);
+                        s.Year = n.Year;
+                        s.DId = n.DId;
+                        s.DPNr = dpnr++;
+                        s.Weight = w;
+                        ctx.Add(s);
+                    }
+                }
+
+                await ctx.SaveChangesAsync();
+                if (!anyLeft)
+                    await ctx.Database.ExecuteSqlAsync($"DELETE FROM delivery WHERE (year, did) = ({d.Year}, {d.DId})");
+            }
+
+            App.HintContextChange();
+
+            return n;
+        }
+
+        public static async Task DepreciateDelivery(int year, int did, int[] weights) {
+            using (var ctx = new AppDbContext()) {
+                var d = (await ctx.Deliveries.FindAsync(year, did))!;
+                var dpnr = await ctx.NextDPNr(year, did);
+                foreach (var (p, w) in d.Parts.ToList().Zip(weights)) {
+                    if (w <= 0) {
+                        continue;
+                    } else if (w >= p.Weight) {
+                        p.QualId = "WEI";
+                        p.HkId = "OEST";
+                        ctx.Update(p);
+                    } else {
+                        p.Weight -= w;
+                        ctx.Update(p);
+                        var n = ctx.CreateProxy<DeliveryPart>();
+                        var values = ctx.Entry(p).CurrentValues;
+                        ctx.Entry(n).CurrentValues.SetValues(values);
+                        n.DPNr = dpnr++;
+                        n.Weight = w;
+                        n.QualId = "WEI";
+                        n.HkId = "OEST";
+                        ctx.Add(n);
+                    }
+                }
+                await ctx.SaveChangesAsync();
+            }
+
+            App.HintContextChange();
+        }
+
         public static async Task GenerateDeliveryNote(int year, int did, ExportMode mode) {
             Mouse.OverrideCursor = Cursors.AppStarting;
             try {
diff --git a/Elwig/Windows/DeliveryAdminWindow.xaml b/Elwig/Windows/DeliveryAdminWindow.xaml
index 5f5cb8b..9d18fe4 100644
--- a/Elwig/Windows/DeliveryAdminWindow.xaml
+++ b/Elwig/Windows/DeliveryAdminWindow.xaml
@@ -274,10 +274,10 @@
                     <TextBlock FontWeight="Bold">Alt+Einfg</TextBlock>
                 </Button.ToolTip>
             </Button>
-            <Button x:Name="AbwertenButton" Content="Abwerten" IsEnabled="False" 
-                    ToolTip="Ausgewählte Teillieferung vollständig oder teilweise abwerten"
+            <Button x:Name="DepreciateButton" Content="Abwert./Aufteil." IsEnabled="False"
+                    ToolTip="Lieferung vollständig oder teilweise abwerten bzw. auf anderes Mitglied aufteilen"
                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,5,2.5,10" Grid.Column="0" Grid.Row="2"
-                    Click="AbwertenButton_Click"/>
+                    Click="DepreciateButton_Click"/>
             <Button x:Name="EditDeliveryButton" Content="Bearbeiten" IsEnabled="False"
                     HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,5,2.5,10" Grid.Column="1" Grid.Row="2"
                     Click="EditDeliveryButton_Click">
@@ -391,36 +391,22 @@
                              Grid.Column="1" Margin="0,100,10,10"
                              TextChanged="TextBox_TextChanged"/>
 
-                    <Grid Grid.ColumnSpan="2" Margin="0,130,0,0">
-                        <Grid.ColumnDefinitions>
-                            <ColumnDefinition/>
-                            <ColumnDefinition/>
-                        </Grid.ColumnDefinitions>
-                        <ListBox x:Name="DeliveryPartList" Margin="5,5,5,38" Grid.ColumnSpan="2"
-                                 SelectionChanged="DeliveryPartList_SelectionChanged">
-                            <ListBox.ItemTemplate>
-                                <DataTemplate>
-                                    <StackPanel Orientation="Horizontal">
-                                        <TextBlock Text="{Binding DPNr}" Width="20"/>
-                                        <TextBlock Text="{Binding SortId}" Width="30"/>
-                                        <TextBlock Text="{Binding Kmw, StringFormat='{}{0:0.0}°'}" Width="40" TextAlignment="Right" Padding="0,0,10,0"/>
-                                        <TextBlock Text="{Binding QualId}" Width="30"/>
-                                        <TextBlock Text="{Binding Weight, StringFormat='{}{0:N0} kg'}" Width="60" TextAlignment="Right" Padding="0,0,10,0"/>
-                                        <TextBlock Text="{Binding Attribute.Name}" Width="60"/>
-                                        <TextBlock Text="{Binding Cultivation.Name}" Width="50"/>
-                                    </StackPanel>
-                                </DataTemplate>
-                            </ListBox.ItemTemplate>
-                        </ListBox>
-
-                        <Button x:Name="ExtractDeliveryPartButton" Content="Extrahieren" IsEnabled="False"
-                                ToolTip="Ausgewählte Teillieferung aus aktueller Lieferung entfernen und entweder anderer oder neuer Lieferung zuordnen"
-                                HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="5,10,2.5,5" Grid.Column="0" Grid.Row="2"
-                                Click="ExtractDeliveryPartButton_Click"/>
-                        <Button x:Name="DeleteDeliveryPartButton" Content="Löschen" IsEnabled="False"
-                                HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="2.5,10,5,5" Grid.Column="1" Grid.Row="2"
-                                Click="DeleteDeliveryPartButton_Click"/>
-                    </Grid>
+                    <ListBox x:Name="DeliveryPartList" Margin="5,135,5,5" Grid.ColumnSpan="2"
+                                SelectionChanged="DeliveryPartList_SelectionChanged">
+                        <ListBox.ItemTemplate>
+                            <DataTemplate>
+                                <StackPanel Orientation="Horizontal">
+                                    <TextBlock Text="{Binding DPNr}" Width="13" TextAlignment="Right" Margin="0,0,7,0"/>
+                                    <TextBlock Text="{Binding SortId}" Width="30"/>
+                                    <TextBlock Text="{Binding Kmw, StringFormat='{}{0:N1}°'}" Width="40" TextAlignment="Right" Padding="0,0,10,0"/>
+                                    <TextBlock Text="{Binding QualId}" Width="30"/>
+                                    <TextBlock Text="{Binding Weight, StringFormat='{}{0:N0} kg'}" Width="60" TextAlignment="Right" Padding="0,0,10,0"/>
+                                    <TextBlock Text="{Binding Attribute.Name}" Width="60"/>
+                                    <TextBlock Text="{Binding Cultivation.Name}" Width="50"/>
+                                </StackPanel>
+                            </DataTemplate>
+                        </ListBox.ItemTemplate>
+                    </ListBox>
                 </Grid>
             </GroupBox>
 
diff --git a/Elwig/Windows/DeliveryAdminWindow.xaml.cs b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
index 555b163..de236fd 100644
--- a/Elwig/Windows/DeliveryAdminWindow.xaml.cs
+++ b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
@@ -638,15 +638,11 @@ namespace Elwig.Windows {
         private void DeliveryPartList_SelectionChanged(object? sender, SelectionChangedEventArgs? evt) {
             RefreshInputs();
             if (DeliveryPartList.SelectedItem is DeliveryPart p) {
-                AbwertenButton.IsEnabled = p.QualId != "WEI";
+                DepreciateButton.IsEnabled = true;
                 EditDeliveryButton.IsEnabled = true;
-                ExtractDeliveryPartButton.IsEnabled = !IsCreating;
-                DeleteDeliveryPartButton.IsEnabled = DeliveryList.SelectedItem is Delivery { Parts.Count: > 1 } && !IsCreating;
             } else {
-                AbwertenButton.IsEnabled = false;
+                DepreciateButton.IsEnabled = false;
                 EditDeliveryButton.IsEnabled = false;
-                ExtractDeliveryPartButton.IsEnabled = false;
-                DeleteDeliveryPartButton.IsEnabled = false;
             }
         }
 
@@ -855,43 +851,29 @@ namespace Elwig.Windows {
             LockSearchInputs();
         }
 
-        private async void AbwertenButton_Click(object sender, RoutedEventArgs evt) {
-            if (DeliveryPartList.SelectedItem is not DeliveryPart p) return;
-            var res = Utils.ShowAbwertenDialog($"{p.Delivery.LsNr}/{p.DPNr}", p.Delivery.Member.AdministrativeName, p.Weight);
-            if (res == null || res <= 0)
+        private async void DepreciateButton_Click(object sender, RoutedEventArgs evt) {
+            if (DeliveryList.SelectedItem is not Delivery d) return;
+            var res = Utils.ShowDeliverySplittingDialog(d);
+            if (res == null)
                 return;
 
             Mouse.OverrideCursor = Cursors.AppStarting;
             try {
-                using var ctx = new AppDbContext();
-                ClearOriginalValues();
-                if (res >= p.Weight) {
-                    ControlUtils.SelectItemWithPk(WineQualityLevelInput, "WEI");
-                    ControlUtils.SelectItemWithPk(WineOriginInput, "OEST");
-                    p.QualId = "WEI";
-                    p.HkId = "OEST";
-                    ctx.Update(p);
+                var id = res.Value.Item1;
+                var weights = res.Value.Item2;
+                if (id == null) {
+                    // abwerten
+                    await DeliveryService.DepreciateDelivery(d.Year, d.DId, weights);
+                } else if (id.All(char.IsAsciiDigit)) {
+                    // auf Mitglied übertragen
+                    var n = await DeliveryService.SplitDeliveryToMember(d.Year, d.DId, weights, int.Parse(id));
+                    await Task.Delay(500);
+                    ControlUtils.SelectItemWithPk(DeliveryList, n.Year, n.DId);
                 } else {
-                    var w = p.Weight - res.Value;
-                    ViewModel.Weight = w;
-                    p.Weight = w;
-                    ctx.Update(p);
-
-                    var d = p.Delivery;
-                    var p2 = ctx.CreateProxy<DeliveryPart>();
-                    var values = ctx.Entry(p).CurrentValues;
-                    ctx.Entry(p2).CurrentValues.SetValues(values);
-                    p2.DPNr = await ctx.NextDPNr(d.Year, d.DId);
-                    p2.Weight = res.Value;
-                    p2.QualId = "WEI";
-                    p2.HkId = "OEST";
-                    ctx.Add(p2);
-
-                    ctx.UpdateDeliveryPartModifiers(p2, [], p.Modifiers);
+                    // zu existierender Lieferung hinzufügen
+                    var n = await DeliveryService.SplitDeliveryToLsNr(d.Year, d.DId, weights, id);
+                    ControlUtils.SelectItemWithPk(DeliveryList, n.Year, n.DId);
                 }
-                await ctx.SaveChangesAsync();
-                await RefreshDeliveryParts();
-                FinishInputFilling();
             } catch (Exception exc) {
                 var str = "Der Eintrag konnte nicht in der Datenbank aktualisiert werden!\n\n" + exc.Message;
                 if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;
@@ -929,9 +911,7 @@ namespace Elwig.Windows {
             UnlockInputs();
             LockSearchInputs();
 
-            AbwertenButton.IsEnabled = false;
-            ExtractDeliveryPartButton.IsEnabled = false;
-            DeleteDeliveryPartButton.IsEnabled = false;
+            DepreciateButton.IsEnabled = false;
         }
 
         protected override void ShortcutDelete() {
@@ -1003,9 +983,7 @@ namespace Elwig.Windows {
             await RefreshDeliveryParts();
             RefreshInputs();
 
-            AbwertenButton.IsEnabled = p.QualId != "WEI";
-            ExtractDeliveryPartButton.IsEnabled = DeliveryPartList.SelectedItem != null && !IsCreating;
-            DeleteDeliveryPartButton.IsEnabled = DeliveryList.SelectedItem is Delivery { Parts.Count: > 1 } && !IsCreating;
+            DepreciateButton.IsEnabled = true;
         }
 
         protected override void ShortcutReset() {
@@ -1036,93 +1014,7 @@ namespace Elwig.Windows {
             LockInputs();
             UnlockSearchInputs();
 
-            AbwertenButton.IsEnabled = DeliveryPartList.SelectedItem is DeliveryPart p && p.QualId != "WEI";
-            ExtractDeliveryPartButton.IsEnabled = DeliveryPartList.SelectedItem != null && !IsCreating;
-            DeleteDeliveryPartButton.IsEnabled = DeliveryList.SelectedItem is Delivery { Parts.Count: > 1 } && !IsCreating;
-        }
-
-        private async void ExtractDeliveryPartButton_Click(object sender, RoutedEventArgs evt) {
-            if (DeliveryPartList.SelectedItem is not DeliveryPart p)
-                return;
-
-            var delivery = p.Delivery;
-            var day = delivery.Date;
-            var count = delivery.Parts.Count;
-
-            if (delivery.Time <= new TimeOnly(3, 0))
-                day = day.AddDays(-1);
-
-            string? res;
-            using (var ctx = new AppDbContext()) {
-                var lsnrs = await ctx.Deliveries
-                    .Where(d => d.ZwstId == delivery.ZwstId)
-                    .Where(d => (d.DateString == day.ToString("yyyy-MM-dd") && (d.TimeString == null || d.TimeString.CompareTo("03:00:00") > 0)) ||
-                                (d.DateString == day.AddDays(1).ToString("yyyy-MM-dd") && (d.TimeString == null || d.TimeString.CompareTo("03:00:00") <= 0)))
-                    .Where(d => d.LsNr != delivery.LsNr)
-                    .OrderBy(d => d.LsNr)
-                    .Select(d => d.LsNr)
-                    .ToListAsync();
-
-                res = Utils.ShowDeliveryExtractionDialog($"{delivery.LsNr}/{p.DPNr}", delivery.Member.AdministrativeName, count == 1, lsnrs);
-                if (res == null)
-                    return;
-            }
-
-            Mouse.OverrideCursor = Cursors.AppStarting;
-            try {
-                using var ctx = new AppDbContext();
-                if (res == "new") {
-                    var lnr = await ctx.NextLNr(delivery.Date, delivery.ZwstId);
-                    var lsnr = Utils.GenerateLsNr(delivery.Date, delivery.ZwstId, lnr);
-                    ctx.Add(new Delivery {
-                        Year = p.Year,
-                        DId = await ctx.NextDId(p.Year),
-                        LNr = lnr,
-                        DateString = $"{delivery.Date:yyyy-MM-dd}",
-                        TimeString = $"{delivery.Time:HH:mm:ss}",
-                        ZwstId = delivery.ZwstId,
-                        MgNr = delivery.MgNr,
-                        Comment = delivery.Comment,
-                        LsNr = lsnr,
-                    });
-                    await ctx.SaveChangesAsync();
-                    res = lsnr;
-                }
-                Delivery? d = await ctx.Deliveries.Where(d => d.LsNr == res).FirstOrDefaultAsync();
-                if (d == null) return;
-
-                await ctx.Database.ExecuteSqlAsync($"UPDATE delivery_part SET year = {d.Year}, did = {d.DId}, dpnr = {await ctx.NextDPNr(d.Year, d.DId)} WHERE (year, did, dpnr) = ({p.Year}, {p.DId}, {p.DPNr})");
-                if (count == 1) {
-                    await ctx.Database.ExecuteSqlAsync($"DELETE FROM delivery WHERE (year, did) = ({delivery.Year}, {delivery.DId})");
-                }
-                await ctx.SaveChangesAsync();
-
-                await RefreshList();
-                ControlUtils.SelectItem(DeliveryList, d);
-            } catch (Exception exc) {
-                var str = "Der Eintrag konnte nicht in der Datenbank aktualisiert werden!\n\n" + exc.Message;
-                if (exc.InnerException != null) str += "\n\n" + exc.InnerException.Message;
-                MessageBox.Show(str, "Lieferung aktualisieren", MessageBoxButton.OK, MessageBoxImage.Error);
-            }
-            Mouse.OverrideCursor = null;
-        }
-
-        private async void DeleteDeliveryPartButton_Click(object sender, RoutedEventArgs evt) {
-            if (DeliveryPartList.SelectedItem is not DeliveryPart p)
-                return;
-
-            var r = MessageBox.Show(
-                $"Soll die Teillieferung Nr. {p.DPNr} wirklich unwiderruflich gelöscht werden?",
-                "Lieferung löschen", MessageBoxButton.OKCancel, MessageBoxImage.Warning, MessageBoxResult.Cancel);
-            if (r == MessageBoxResult.OK) {
-                Mouse.OverrideCursor = Cursors.AppStarting;
-                using (var ctx = new AppDbContext()) {
-                    ctx.Remove(p);
-                    await ctx.SaveChangesAsync();
-                }
-                await RefreshDeliveryParts();
-                Mouse.OverrideCursor = null;
-            }
+            DepreciateButton.IsEnabled = DeliveryPartList.SelectedItem != null;
         }
 
         private void ShowSaveResetCancelButtons() {
@@ -1145,22 +1037,22 @@ namespace Elwig.Windows {
 
         private void ShowNewEditDeleteButtons() {
             NewDeliveryButton.IsEnabled = ViewModel.IsReceipt;
-            AbwertenButton.IsEnabled = DeliveryPartList.SelectedItem is DeliveryPart p && p.QualId == "WEI";
+            DepreciateButton.IsEnabled = DeliveryList.SelectedItem != null;
             EditDeliveryButton.IsEnabled = DeliveryPartList.SelectedItem != null;
             DeleteDeliveryButton.IsEnabled = DeliveryList.SelectedItem != null;
             NewDeliveryButton.Visibility = ViewModel.IsReceipt ? Visibility.Visible : Visibility.Hidden;
-            AbwertenButton.Visibility = !ViewModel.IsReceipt ? Visibility.Visible : Visibility.Hidden;
+            DepreciateButton.Visibility = !ViewModel.IsReceipt ? Visibility.Visible : Visibility.Hidden;
             EditDeliveryButton.Visibility = Visibility.Visible;
             DeleteDeliveryButton.Visibility = Visibility.Visible;
         }
 
         private void HideNewEditDeleteButtons() {
             NewDeliveryButton.IsEnabled = false;
-            AbwertenButton.IsEnabled = false;
+            DepreciateButton.IsEnabled = false;
             EditDeliveryButton.IsEnabled = false;
             DeleteDeliveryButton.IsEnabled = false;
             NewDeliveryButton.Visibility = Visibility.Hidden;
-            AbwertenButton.Visibility = Visibility.Hidden;
+            DepreciateButton.Visibility = Visibility.Hidden;
             EditDeliveryButton.Visibility = Visibility.Hidden;
             DeleteDeliveryButton.Visibility = Visibility.Hidden;
         }