[#15] MailWindow: Add Rundschreiben-Funktion

Elwig/App.xaml.cs

@@ -254,5 +254,9 @@ namespace Elwig {
             w.FocusMember(mgnr);
             return w;
         }
+
+        public static MailWindow FocusMailWindow() {
+            return FocusWindow<MailWindow>(() => new());
+        }
     }
 }

Elwig/Documents/Document.cs

@@ -11,9 +11,11 @@ namespace Elwig.Documents {
 
         public static string Name => "Dokument";
 
-        private static readonly double GenerationProportion = 0.125;
+        protected static readonly double GenerationProportion = 0.125;
 
-        private TempFile? _pdfFile = null;
+        protected TempFile? _pdfFile = null;
+        protected string? _pdfPath;
+        protected string? PdfPath => _pdfPath ?? _pdfFile?.FilePath;
 
         public bool ShowFoldMarks = App.Config.Debug;
         public bool DoubleSided = false;
@@ -59,6 +61,10 @@ namespace Elwig.Documents {
             return new MergedDocument(docs);
         }
 
+        public static Document FromPdf(string path) {
+            return new PdfDocument(path);
+        }
+
         private async Task<string> Render() {
             string name;
             if (this is BusinessLetter) {
@@ -87,20 +93,28 @@ namespace Elwig.Documents {
 
         public async Task Generate(IProgress<double>? progress = null) {
             progress?.Report(0.0);
-            if (this is MergedDocument m) {
+            if (this is PdfDocument) {
+                // nothing to do
+            } else if (this is MergedDocument m) {
                 var pdf = new TempFile("pdf");
                 var tmpHtmls = new List<TempFile>();
+                var tmpFiles = new List<string>();
                 var n = m.Documents.Count();
                 int i = 0;
                 foreach (var doc in m.Documents) {
+                    if (doc is PdfDocument) {
+                        tmpFiles.Add(doc.PdfPath!);
+                        continue;
+                    }
                     var tmpHtml = new TempFile("html");
                     await File.WriteAllTextAsync(tmpHtml.FilePath, await doc.Render(), Utils.UTF8);
                     tmpHtmls.Add(tmpHtml);
+                    tmpFiles.Add(tmpHtml.FileName);
                     i++;
                     progress?.Report(GenerationProportion * 100 * i / n);
                 }
                 progress?.Report(GenerationProportion * 100);
-                await Pdf.Convert(tmpHtmls.Select(f => f.FileName), pdf.FileName, DoubleSided, new Progress<double>(v => progress?.Report(GenerationProportion * 100 + v * (1 - GenerationProportion))));
+                await Pdf.Convert(tmpFiles, pdf.FileName, DoubleSided, new Progress<double>(v => progress?.Report(GenerationProportion * 100 + v * (1 - GenerationProportion))));
                 foreach (var tmp in tmpHtmls) {
                     tmp.Dispose();
                 }
@@ -118,13 +132,13 @@ namespace Elwig.Documents {
         }
 
         public void SaveTo(string pdfPath) {
-            if (_pdfFile == null) throw new InvalidOperationException("Pdf file has not been generated yet");
+            if (PdfPath == null) throw new InvalidOperationException("Pdf file has not been generated yet");
-            File.Copy(_pdfFile.FilePath, pdfPath);
+            File.Copy(PdfPath, pdfPath);
         }
 
         public async Task Print(int copies = 1) {
-            if (_pdfFile == null) throw new InvalidOperationException("Pdf file has not been generated yet");
+            if (PdfPath == null) throw new InvalidOperationException("Pdf file has not been generated yet");
-            await Pdf.Print(_pdfFile.FilePath, copies);
+            await Pdf.Print(PdfPath, copies);
         }
 
         public void Show() {
@@ -132,10 +146,14 @@ namespace Elwig.Documents {
             Pdf.Show(_pdfFile.NewReference(), Title + (this is BusinessDocument b ? $" - {b.Member.Name}" : ""));
         }
 
-        private class MergedDocument : Document {
+        private class MergedDocument(IEnumerable<Document> docs) : Document("Mehrere Dokumente") {
-            public IEnumerable<Document> Documents;
+            public IEnumerable<Document> Documents = docs;
-            public MergedDocument(IEnumerable<Document> docs) : base("Mehrere Dokumente") {
+        }
-                Documents = docs;
+
+        private class PdfDocument : Document {
+            public PdfDocument(string pdfPath) :
+                base(Path.GetFileNameWithoutExtension(pdfPath)) {
+                _pdfPath = pdfPath;
             }
         }
     }

Elwig/Helpers/ActionCommand.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Windows.Input;
+
+namespace Elwig.Helpers {
+    public class ActionCommand : ICommand {
+
+        public event EventHandler CanExecuteChanged;
+        private readonly Action Action;
+
+        public ActionCommand(Action action) {
+            Action = action;
+        }
+
+        public void Execute(object parameter) {
+            Action();
+        }
+
+        public bool CanExecute(object parameter) {
+            return true;
+        }
+    }
+}

Elwig/Helpers/ClientParameters.cs

@@ -61,6 +61,8 @@ namespace Elwig.Helpers {
         public string? TextDeliveryNote;
         public string? TextDeliveryConfirmation;
         public string? TextCreditNote;
+        public string? TextEmailSubject;
+        public string? TextEmailBody;
 
         public ClientParameters(AppDbContext ctx) : this(ctx.ClientParameters.ToDictionary(e => e.Param, e => e.Value)) { }
 
@@ -108,6 +110,10 @@ namespace Elwig.Helpers {
                 if (TextDeliveryConfirmation == "") TextDeliveryConfirmation = null;
                 TextCreditNote = parameters.GetValueOrDefault("TEXT_CREDITNOTE");
                 if (TextCreditNote == "") TextCreditNote = null;
+                TextEmailSubject = parameters.GetValueOrDefault("TEXT_EMAIL_SUBJECT");
+                if (TextEmailSubject == "") TextEmailSubject = null;
+                TextEmailBody = parameters.GetValueOrDefault("TEXT_EMAIL_BODY");
+                if (TextEmailBody == "") TextEmailBody = null;
             } catch {
                 throw new KeyNotFoundException();
             }
@@ -143,6 +149,8 @@ namespace Elwig.Helpers {
                 ("TEXT_DELIVERYNOTE", TextDeliveryNote),
                 ("TEXT_DELIVERYCONFIRMATION", TextDeliveryConfirmation),
                 ("TEXT_CREDITNOTE", TextCreditNote),
+                ("TEXT_EMAIL_SUBJECT", TextEmailSubject),
+                ("TEXT_EMAIL_BODY", TextEmailBody)
             ];
         }
 
@@ -163,6 +171,7 @@ namespace Elwig.Helpers {
             }
 
             await cmd.ExecuteNonQueryAsync();
+            await App.HintContextChange();
         }
     }
 }

Elwig/Models/Entities/Member.cs

@@ -145,7 +145,10 @@ namespace Elwig.Models.Entities {
         public virtual PostalDest PostalDest { get; private set; }
 
         [ForeignKey("DefaultKgNr")]
-        public virtual AT_Kg? DefaultKg { get; private set; }
+        public virtual WbKg? DefaultWbKg { get; private set; }
+
+        [NotMapped]
+        public AT_Kg? DefaultKg => DefaultWbKg?.AtKg;
 
         [ForeignKey("ZwstId")]
         public virtual Branch? Branch { get; private set; }

Elwig/Models/Entities/WbKg.cs

@@ -20,6 +20,9 @@ namespace Elwig.Models.Entities {
         [InverseProperty("Kg")]
         public virtual ISet<WbRd> Rds { get; private set; }
 
+        [InverseProperty("DefaultWbKg")]
+        public virtual ISet<Member> Members { get; private set; }
+
         [NotMapped]
         public WbGem Gem => AtKg.Gem.WbGem;
 

Elwig/Windows/MailWindow.xaml

@@ -0,0 +1,259 @@
+<local:ContextWindow
+        x:Class="Elwig.Windows.MailWindow"
+        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.Windows"
+        xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
+        mc:Ignorable="d"
+        MinWidth="650" MinHeight="400" Height="600" Width="950"
+        Closed="Window_Closed"
+        Title="Rundschreiben - Elwig">
+    <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>
+    </Window.Resources>
+    <TabControl x:Name="TabControl" BorderThickness="0" PreviewDragOver="Document_PreviwDragOver" AllowDrop="True" Drop="Document_Drop">
+        <TabItem Header="Dokumente" Visibility="Collapsed">
+            <Grid>
+                <Grid Width="600" Height="200" VerticalAlignment="Top" HorizontalAlignment="Left">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="*"/>
+                        <ColumnDefinition Width="25"/>
+                        <ColumnDefinition Width="*"/>
+                    </Grid.ColumnDefinitions>
+                    <Grid.RowDefinitions>
+                        <RowDefinition Height="*"/>
+                        <RowDefinition Height="30"/>
+                    </Grid.RowDefinitions>
+
+                    <Label Content="Verfügbare Dokumente"
+                           Grid.Column="0" Margin="10,8,10,10"/>
+                    <ListBox x:Name="AvaiableDocumentsList"
+                             Grid.Column="0" Margin="10,30,10,10"
+                             SelectionChanged="AvaiableDocumentsList_SelectionChanged"/>
+
+                    <Button x:Name="DocumentAddButton" Content="&#xF0AF;" FontFamily="Segoe MDL2 Assets" FontSize="14"
+                            Grid.Column="1" Margin="0,0,0,30" VerticalAlignment="Center" Height="25" IsEnabled="False"
+                            Click="DocumentAddButton_Click"/>
+                    <Button x:Name="DocumentRemoveButton" Content="&#xE74D;" FontFamily="Segoe MDL2 Assets" FontSize="14" Padding="1.5,0,0,0"
+                            Grid.Column="1" Margin="0,30,0,0" VerticalAlignment="Center" Height="25" IsEnabled="False"
+                            Click="DocumentRemoveButton_Click"/>
+
+                    <Label Content="Ausgewählte Dokumente"
+                           Grid.Column="2" Margin="10,8,10,10"/>
+                    <ListBox x:Name="SelectedDocumentsList" DisplayMemberPath="Name"
+                             Grid.Column="2" Margin="10,30,10,37"
+                             SelectionChanged="SelectedDocumentsList_SelectionChanged">
+                        <ListBox.InputBindings>
+                            <KeyBinding Key="Delete" Command="{Binding Path=DeleteCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:MailWindow}}}"/>
+                        </ListBox.InputBindings>
+                    </ListBox>
+                    <Button x:Name="SelectDocumentButton" Content="Durchsuchen..."
+                            Grid.Column="2" VerticalAlignment="Bottom" Margin="10,10,10,10" Height="22"
+                            Click="SelectDocumentButton_Click"/>
+                </Grid>
+
+                <GroupBox x:Name="DocumentBox" Header="Dokument" Margin="10,170,10,47" Width="580" HorizontalAlignment="Left">
+                    <Grid>
+                        <Grid.ColumnDefinitions>
+                            <ColumnDefinition Width="70"/>
+                            <ColumnDefinition Width="*"/>
+                        </Grid.ColumnDefinitions>
+
+                        <CheckBox x:Name="DocumentNonDeliverersInput" Content="Auch Nicht-Lieferanten miteinbeziehen"
+                                  Margin="10,10,10,10" Grid.Column="1"/>
+
+                        <Label x:Name="DocumentFooterLabel" Content="Fußtext:" Margin="10,40,0,10"/>
+                        <TextBox x:Name="DeliveryConfirmationFooterInput" Grid.Column="1"
+                                 Margin="0,40,10,10" Height="Auto" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"
+                                 AcceptsReturn="True" VerticalScrollBarVisibility="Visible"/>
+                        <TextBox x:Name="CreditNoteFooterInput" Grid.Column="1"
+                                 Margin="0,10,10,10" Height="Auto" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"
+                                 AcceptsReturn="True" VerticalScrollBarVisibility="Visible"/>
+                    </Grid>
+                </GroupBox>
+
+                <GroupBox Header="Adressaten" Margin="610,10,10,47">
+                    <Grid>
+                        <RadioButton GroupName="Recipients" x:Name="RecipientsActiveMembersInput" Content="aktive Mitglieder"
+                                     Margin="10,10,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                     Checked="RecipientsInput_Changed" Unchecked="RecipientsInput_Changed"/>
+                        <RadioButton GroupName="Recipients" x:Name="RecipientsAreaComMembersInput" Content="Mitglieder mit Flächenbindung"
+                                     Margin="10,30,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                     Checked="RecipientsInput_Changed" Unchecked="RecipientsInput_Changed"/>
+                        <RadioButton GroupName="Recipients" x:Name="RecipientsDeliveryMembersInput" Content="Lieferanten der Saison"
+                                     Margin="10,50,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                     Checked="RecipientsInput_Changed" Unchecked="RecipientsInput_Changed"/>
+                        <RadioButton GroupName="Recipients" x:Name="RecipientsNonDeliveryMembersInput" Content="Nicht-Lieferanten der Saison"
+                                     Margin="10,70,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                     Checked="RecipientsInput_Changed" Unchecked="RecipientsInput_Changed"/>
+                        <RadioButton GroupName="Recipients" x:Name="RecipientsCustomInput" Content="Benutzerdefiniert"
+                                     Margin="10,90,10,10" VerticalAlignment="Top" HorizontalAlignment="Left"
+                                     Checked="RecipientsInput_Changed" Unchecked="RecipientsInput_Changed"/>
+
+                        <Label Content="Zwst.:" x:Name="MemberBranchLabel" Margin="10,120,0,10"/>
+                        <xctk:CheckComboBox x:Name="MemberBranchInput" AllItemsSelectedContent="Alle Stammzweigstellen" Delimiter=", " DisplayMemberPath="Name"
+                                            Margin="50,120,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                            ItemSelectionChanged="MemberInput_SelectionChanged"/>
+
+                        <Label Content="Gem.:" x:Name="MemberKgLabel" Margin="10,150,0,10"/>
+                        <xctk:CheckComboBox x:Name="MemberKgInput" AllItemsSelectedContent="Alle Stammgemeinden" Delimiter=", " DisplayMemberPath="Name"
+                                            IsSelectAllActive="True" SelectAllContent="Alle Stammgemeinden"
+                                            Margin="50,150,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                            ItemSelectionChanged="MemberInput_SelectionChanged"/>
+
+                        <Label Content="Vtrg.:" x:Name="MemberAreaComLabel" Margin="10,180,0,10"/>
+                        <xctk:CheckComboBox x:Name="MemberAreaComInput" AllItemsSelectedContent="Alle Vertragsarten" Delimiter=", " DisplayMemberPath="VtrgId"
+                                            IsSelectAllActive="True" SelectAllContent="Alle Vertragsarten"
+                                            Margin="50,180,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                            ItemSelectionChanged="MemberInput_SelectionChanged"/>
+
+                        <xctk:CheckComboBox x:Name="MemberCustomInput" AllItemsSelectedContent="Alle Mitglieder" Delimiter=", " DisplayMemberPath="AdministrativeName"
+                                            IsSelectAllActive="True" SelectAllContent="Alle Mitglieder"
+                                            Margin="10,120,10,10" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="25"
+                                            ItemSelectionChanged="MemberInput_SelectionChanged"/>
+                    </Grid>
+                </GroupBox>
+
+                <Button x:Name="ContinueButton" Content="Weiter"
+                        Margin="10,10,10,10" Height="27" Width="100" Padding="9,3" FontSize="14"
+                        VerticalAlignment="Bottom" HorizontalAlignment="Right"
+                        Click="ContinueButton_Click"/>
+            </Grid>
+        </TabItem>
+
+        <TabItem Header="Absenden" Visibility="Collapsed">
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="1.5*"/>
+                </Grid.ColumnDefinitions>
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="*"/>
+                    <RowDefinition Height="80"/>
+                </Grid.RowDefinitions>
+
+                <GroupBox Header="Post" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="10,10,5,10" Grid.Column="0">
+                    <Grid>
+                        <GroupBox Header="Zusenden an..." Margin="10,10,10,10" Height="150" Width="220" VerticalAlignment="Top" HorizontalAlignment="Left">
+                            <StackPanel>
+                                <RadioButton x:Name="PostalAllInput" Margin="10,10,10,2.5">
+                                    <TextBlock>
+                                        ... alle (<Run Text="{Binding Path=PostalAllCount, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:MailWindow}}}"/>)
+                                    </TextBlock>
+                                </RadioButton>
+                                <RadioButton x:Name="PostalWishInput" Margin="10,2.5,10,2.5" IsChecked="True">
+                                    <TextBlock>
+                                        ...Mitglieder, die Zusendung<LineBreak/>
+                                        per Post wünschen (<Run Text="{Binding Path=PostalWishCount, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:MailWindow}}}"/>)
+                                    </TextBlock>
+                                </RadioButton>
+                                <RadioButton x:Name="PostalNoEmailInput" Margin="10,2.5,10,2.5">
+                                    <TextBlock>
+                                        ...Mitglieder, die keine<LineBreak/>
+                                        E-Mail erhalten würden (<Run Text="{Binding Path=PostalNoEmailCount, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:MailWindow}}}"/>)
+                                    </TextBlock>
+                                </RadioButton>
+                                <RadioButton x:Name="PostalNobodyInput" Margin="10,2.5,10,10" Content="...niemanden (0)"/>
+                            </StackPanel>
+                        </GroupBox>
+
+                        <GroupBox Header="Sortieren nach" Margin="10,180,10,10" Width="180" Height="80" VerticalAlignment="Top" HorizontalAlignment="Left">
+                            <StackPanel Margin="5,5,0,5">
+                                <RadioButton GroupName="Order" x:Name="OrderMgNrInput" Content="Mitgliedsnummer" IsChecked="True"/>
+                                <RadioButton GroupName="Order" x:Name="OrderNameInput" Content="Name"/>
+                                <RadioButton GroupName="Order" x:Name="OrderPlzInput" Content="PLZ, Ort, Name"/>
+                            </StackPanel>
+                        </GroupBox>
+
+                        <CheckBox x:Name="DoublePagedInput" Margin="20,270,10,10" Content="Doppelseitig drucken"
+                                  VerticalAlignment="Top" HorizontalAlignment="Left"/>
+
+                        <TextBox x:Name="PostalSender1" IsEnabled="False"
+                                 Margin="10,300,10,10"/>
+                        <TextBox x:Name="PostalSender2"
+                                 Margin="10,330,10,10"/>
+
+                    </Grid>
+                </GroupBox>
+
+                <GroupBox Header="E-Mail" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="5,10,10,10" Grid.Column="1">
+                    <Grid>
+                        <GroupBox Header="Zusenden an..." Margin="80,10,10,10" Width="220" Height="110" VerticalAlignment="Top" HorizontalAlignment="Left">
+                            <StackPanel>
+                                <RadioButton x:Name="EmailAllInput" Margin="10,10,10,2.5" Checked="EmailInput_Changed">
+                                    <TextBlock>
+                                        ...alle mit E-Mail-Adressen (<Run Text="{Binding Path=EmailAllCount, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:MailWindow}}}"/>)
+                                    </TextBlock>
+                                </RadioButton>
+                                <RadioButton x:Name="EmailWishInput" Margin="10,2.5,10,2.5" IsChecked="True" Checked="EmailInput_Changed">
+                                    <TextBlock>
+                                            ...Mitglieder, die Zusendung<LineBreak/>
+                                            per E-Mail wünschen (<Run Text="{Binding Path=EmailWishCount, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type local:MailWindow}}}"/>)
+                                    </TextBlock>
+                                </RadioButton>
+                                <RadioButton x:Name="EmailNobodyInput" Margin="10,2.5,10,10" Content="...niemanden (0)"  Checked="EmailInput_Changed"/>
+                            </StackPanel>
+                        </GroupBox>
+
+                        <Label Content="Betreff:" Margin="10,130,10,10"/>
+                        <TextBox x:Name="EmailSubjectInput" Margin="80,130,10,10"/>
+
+                        <Label Content="Nachricht:" Margin="10,160,10,10"/>
+                        <TextBox x:Name="EmailBodyInput"
+                                 Margin="80,160,10,10" VerticalAlignment="Stretch" Height="Auto"
+                                 TextWrapping="Wrap" VerticalScrollBarVisibility="Visible" AcceptsReturn="True"/>
+                    </Grid>
+                </GroupBox>
+
+                <Grid Grid.Row="1" Grid.ColumnSpan="2" Width="400" Height="59">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="0.7*"/>
+                        <ColumnDefinition Width="10"/>
+                        <ColumnDefinition Width="0.4*"/>
+                        <ColumnDefinition Width="5"/>
+                        <ColumnDefinition Width="0.6*"/>
+                    </Grid.ColumnDefinitions>
+                    <Grid.RowDefinitions>
+                        <RowDefinition Height="*"/>
+                        <RowDefinition Height="5"/>
+                        <RowDefinition Height="*"/>
+                    </Grid.RowDefinitions>
+
+                    <Button x:Name="GenerateButton" Content="Generieren"
+                            Grid.Row="0" Grid.Column="0" FontSize="14"
+                            Click="GenerateButton_Click"/>
+                    <ProgressBar x:Name="ProgressBar"
+                                 Grid.Row="2" Grid.Column="0" SnapsToDevicePixels="True"/>
+
+                    <Button x:Name="PreviewButton" Content="Vorschau" IsEnabled="False"
+                            Grid.Row="0" Grid.Column="2" Grid.ColumnSpan="3" FontSize="14"
+                            Click="PreviewButton_Click"/>
+                    <Button x:Name="PrintButton" Content="Drucken" IsEnabled="False"
+                            Grid.Row="2" Grid.Column="2" FontSize="14"/>
+                    <Button x:Name="EmailButton" Content="E-Mails verschicken" IsEnabled="False"
+                            Grid.Row="2" Grid.Column="4" FontSize="14"/>
+                </Grid>
+
+                <Button x:Name="BackButton" Content="Zurück" Grid.Row="1"
+                        Margin="10,10,10,10" Height="27" Width="100" Padding="9,3" FontSize="14"
+                        VerticalAlignment="Bottom" HorizontalAlignment="Left"
+                        Click="BackButton_Click"/>
+            </Grid>
+        </TabItem>
+    </TabControl>
+</local:ContextWindow>

Elwig/Windows/MailWindow.xaml.cs

@@ -0,0 +1,557 @@
+using Elwig.Documents;
+using Elwig.Helpers;
+using Elwig.Helpers.Billing;
+using Elwig.Models.Dtos;
+using Elwig.Models.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Win32;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+
+namespace Elwig.Windows {
+    public partial class MailWindow : ContextWindow {
+
+        // used for document sorting while generating!
+        public enum DocType { Undefined, Custom, MemberDataSheet, DeliveryConfirmation, CreditNote }
+
+        public class SelectedDoc(DocType type, string name, object? details = null) {
+            public DocType Type = type;
+            public string Name { get; set; } = name;
+            public object? Details = details;
+        }
+
+        public class GeneratedDoc {
+            public DocType Type;
+            public Document Doc;
+
+            public GeneratedDoc(string pdfPath) {
+                Type = DocType.Custom;
+                Doc = Document.FromPdf(pdfPath);
+            }
+
+            public GeneratedDoc(Document doc) {
+                Type = doc is MemberDataSheet ? DocType.MemberDataSheet :
+                    doc is DeliveryConfirmation ? DocType.DeliveryConfirmation :
+                    doc is CreditNote ? DocType.CreditNote : DocType.Undefined;
+                Doc = doc;
+            }
+        }
+
+        public static readonly string[] AvaiableDocuments = [
+            MemberDataSheet.Name,
+            DeliveryConfirmation.Name,
+            CreditNote.Name,
+        ];
+
+        protected Season? Season;
+        public ObservableCollection<SelectedDoc> SelectedDocs = [];
+        public IEnumerable<Member> Recipients = [];
+
+        protected Document? PrintDocument;
+        protected Dictionary<Member, List<Document>>? EmailDocuments;
+
+        public static readonly DependencyProperty PostalAllCountProperty = DependencyProperty.Register("PostalAllCount", typeof(int), typeof(MailWindow));
+        public int PostalAllCount {
+            get => (int)GetValue(PostalAllCountProperty);
+            private set => SetValue(PostalAllCountProperty, value);
+        }
+
+        public static readonly DependencyProperty PostalWishCountProperty = DependencyProperty.Register("PostalWishCount", typeof(int), typeof(MailWindow));
+        public int PostalWishCount {
+            get => (int)GetValue(PostalWishCountProperty);
+            private set => SetValue(PostalWishCountProperty, value);
+        }
+
+        public static readonly DependencyProperty PostalNoEmailCountProperty = DependencyProperty.Register("PostalNoEmailCount", typeof(int), typeof(MailWindow));
+        public int PostalNoEmailCount {
+            get => (int)GetValue(PostalNoEmailCountProperty);
+            private set => SetValue(PostalNoEmailCountProperty, value);
+        }
+
+        public static readonly DependencyProperty EmailAllCountProperty = DependencyProperty.Register("EmailAllCount", typeof(int), typeof(MailWindow));
+        public int EmailAllCount {
+            get => (int)GetValue(EmailAllCountProperty);
+            private set => SetValue(EmailAllCountProperty, value);
+        }
+
+        public static readonly DependencyProperty EmailWishCountProperty = DependencyProperty.Register("EmailWishCount", typeof(int), typeof(MailWindow));
+        public int EmailWishCount {
+            get => (int)GetValue(EmailWishCountProperty);
+            private set => SetValue(EmailWishCountProperty, value);
+        }
+
+        private ICommand _deleteCommand;
+        public ICommand DeleteCommand => _deleteCommand ??= new ActionCommand(() => {
+            var idx = SelectedDocumentsList.SelectedIndex;
+            if (idx == -1)
+                return;
+            SelectedDocs.RemoveAt(SelectedDocumentsList.SelectedIndex);
+            SelectedDocumentsList.SelectedIndex = idx < SelectedDocumentsList.Items.Count ? idx : idx - 1;
+        });
+
+        // powershell -Command "$(Get-WmiObject -Class Win32_Printer | Where-Object {$_.Default -eq $True}).Name"
+        public MailWindow() {
+            InitializeComponent();
+            AvaiableDocumentsList.ItemsSource = AvaiableDocuments;
+            SelectedDocumentsList.ItemsSource = SelectedDocs;
+
+            DocumentNonDeliverersInput.Visibility = Visibility.Hidden;
+            DocumentFooterLabel.Visibility = Visibility.Hidden;
+            DeliveryConfirmationFooterInput.Visibility = Visibility.Hidden;
+            CreditNoteFooterInput.Visibility = Visibility.Hidden;
+            RecipientsActiveMembersInput.IsChecked = true;
+
+            DeliveryConfirmationFooterInput.Text = App.Client.TextDeliveryConfirmation;
+            CreditNoteFooterInput.Text = App.Client.TextCreditNote;
+
+            PostalSender1.Text = App.Client.Sender1;
+            PostalSender2.Text = App.Client.Sender2;
+            EmailSubjectInput.Text = App.Client.TextEmailSubject ?? "Rundschreiben";
+            EmailBodyInput.Text = App.Client.TextEmailBody ?? "Sehr geehrtes Mitglied,\n\nim Anhang finden Sie das aktuelle Rundschreiben.\n\nIhre Winzergenossenschaft\n";
+        }
+
+        protected override async Task OnRenewContext() {
+            Season = await Context.Seasons.OrderBy(s => s.Year).LastOrDefaultAsync();
+            var l = new List<string> {
+                MemberDataSheet.Name
+            };
+            if (Season != null) {
+                l.Add($"{DeliveryConfirmation.Name} {Season.Year}");
+                l.AddRange(Season.PaymentVariants.Where(v => !v.TestVariant).OrderBy(v => v.AvNr).Select(v => $"{CreditNote.Name} – {v.Name}"));
+            }
+            AvaiableDocumentsList.ItemsSource = l;
+
+            ControlUtils.RenewItemsSource(MemberBranchInput, await Context.Branches
+                .Where(b => b.Members.Any())
+                .OrderBy(b => b.Name)
+                .ToListAsync(), b => (b as Branch)?.ZwstId);
+            if (MemberBranchInput.SelectedItems.Count == 0) MemberBranchInput.SelectAll();
+            ControlUtils.RenewItemsSource(MemberKgInput, await Context.Katastralgemeinden
+                .Where(k => k.WbKg.Members.Any())
+                .OrderBy(k => k.Name)
+                .ToListAsync(), k => (k as AT_Kg)?.KgNr);
+            if (MemberKgInput.SelectedItems.Count == 0) MemberKgInput.SelectAll();
+            ControlUtils.RenewItemsSource(MemberAreaComInput, await Context.AreaCommitmentTypes
+                .OrderBy(a => a.VtrgId)
+                .ToListAsync(), a => (a as AreaComType)?.VtrgId);
+            if (MemberAreaComInput.SelectedItems.Count == 0) MemberAreaComInput.SelectAll();
+            ControlUtils.RenewItemsSource(MemberCustomInput, await Context.Members
+                .Where(m => m.IsActive)
+                .OrderBy(m => m.FamilyName)
+                .ThenBy(m => m.GivenName)
+                .ToListAsync(), m => (m as Member)?.MgNr);
+            if (MemberCustomInput.SelectedItems.Count == 0) MemberCustomInput.SelectAll();
+
+            await UpdateRecipients();
+        }
+
+        private void ContinueButton_Click(object sender, RoutedEventArgs evt) {
+            TabControl.SelectedIndex = 1;
+            TabControl.AllowDrop = false;
+        }
+
+        private void BackButton_Click(object sender, RoutedEventArgs evt) {
+            TabControl.SelectedIndex = 0;
+            TabControl.AllowDrop = true;
+        }
+
+        private void Document_Drop(object sender, DragEventArgs evt) {
+            if (evt.Data.GetDataPresent(DataFormats.FileDrop)) {
+                var files = (string[])evt.Data.GetData(DataFormats.FileDrop);
+                foreach (var file in files) {
+                    if (Path.GetExtension(file) == ".pdf") {
+                        SelectedDocs.Add(new(DocType.Custom, Path.GetFileName(file), file));
+                    }
+                }
+            }
+        }
+
+        private void Document_PreviwDragOver(object sender, DragEventArgs evt) {
+            evt.Handled = TabControl.SelectedIndex == 0;
+        }
+
+        private void AvaiableDocumentsList_SelectionChanged(object sender, RoutedEventArgs evt) {
+            DocumentAddButton.IsEnabled = AvaiableDocumentsList.SelectedIndex != -1;
+        }
+
+        private void SelectedDocumentsList_SelectionChanged(object sender, RoutedEventArgs evt) {
+            DocumentRemoveButton.IsEnabled = SelectedDocumentsList.SelectedIndex != -1;
+            if (SelectedDocumentsList.SelectedItem is SelectedDoc doc) {
+                DocumentBox.Header = doc.Name;
+                if (doc.Type == DocType.DeliveryConfirmation) {
+                    DocumentNonDeliverersInput.Visibility = Visibility.Visible;
+                    DocumentFooterLabel.Visibility = Visibility.Visible;
+                    DeliveryConfirmationFooterInput.Visibility = Visibility.Visible;
+                    CreditNoteFooterInput.Visibility = Visibility.Hidden;
+                    DocumentFooterLabel.Margin = new(10, 40, 0, 10);
+                } else if (doc.Type == DocType.CreditNote) {
+                    DocumentNonDeliverersInput.Visibility = Visibility.Hidden;
+                    DocumentFooterLabel.Visibility = Visibility.Visible;
+                    DeliveryConfirmationFooterInput.Visibility = Visibility.Hidden;
+                    CreditNoteFooterInput.Visibility = Visibility.Visible;
+                    DocumentFooterLabel.Margin = new(10, 10, 0, 10);
+                } else {
+                    DocumentNonDeliverersInput.Visibility = Visibility.Hidden;
+                    DocumentFooterLabel.Visibility = Visibility.Hidden;
+                    DeliveryConfirmationFooterInput.Visibility = Visibility.Hidden;
+                    CreditNoteFooterInput.Visibility = Visibility.Hidden;
+                }
+            } else {
+                DocumentBox.Header = "Dokument";
+                DocumentNonDeliverersInput.Visibility = Visibility.Hidden;
+                DocumentFooterLabel.Visibility = Visibility.Hidden;
+                DeliveryConfirmationFooterInput.Visibility = Visibility.Hidden;
+                CreditNoteFooterInput.Visibility = Visibility.Hidden;
+            }
+        }
+
+        private void DocumentAddButton_Click(object sender, RoutedEventArgs evt) {
+            var idx = AvaiableDocumentsList.SelectedIndex;
+            if (AvaiableDocumentsList.SelectedItem is not string s)
+                return;
+            if (idx == 0) {
+                SelectedDocs.Add(new(DocType.MemberDataSheet, s, null));
+            } else if (idx == 1) {
+                SelectedDocs.Add(new(DocType.DeliveryConfirmation, s, (Season!.Year, DocumentNonDeliverersInput.IsChecked == true)));
+            } else if (idx >= 2) {
+                var name = s.Split(" – ")[^1];
+                var pv = Context.PaymentVariants.Single(v => v.Year == Season!.Year && v.Name == name)!;
+                SelectedDocs.Add(new(DocType.CreditNote, s, (pv.Year, pv.AvNr)));
+            }
+            SelectedDocumentsList.SelectedIndex = SelectedDocs.Count - 1;
+        }
+
+        private void DocumentRemoveButton_Click(object sender, RoutedEventArgs evt) {
+            DeleteCommand.Execute(null);
+        }
+
+        private void SelectDocumentButton_Click(object sender, RoutedEventArgs evt) {
+            var d = new OpenFileDialog() {
+                Title = "Dokument auswählen - Elwig",
+                DefaultExt = ".pdf",
+                Filter = "PDF-Datei (*.pdf)|*.pdf",
+                Multiselect = true,
+            };
+            if (d.ShowDialog() == true) {
+                foreach (var file in d.FileNames) {
+                    if (Path.GetExtension(file) == ".pdf") {
+                        SelectedDocs.Add(new(DocType.Custom, Path.GetFileName(file), file));
+                    }
+                }
+            }
+        }
+
+        private async void RecipientsInput_Changed(object sender, RoutedEventArgs evt) {
+            var vis = RecipientsCustomInput.IsChecked == true ? Visibility.Hidden : Visibility.Visible;
+            MemberBranchLabel.Visibility = vis;
+            MemberBranchInput.Visibility = vis;
+            MemberKgLabel.Visibility = vis;
+            MemberKgInput.Visibility = vis;
+            MemberAreaComInput.Visibility = RecipientsAreaComMembersInput.IsChecked == true ? Visibility.Visible : Visibility.Hidden;
+            MemberAreaComLabel.Visibility = RecipientsAreaComMembersInput.IsChecked == true ? Visibility.Visible : Visibility.Hidden;
+            MemberCustomInput.Visibility = RecipientsCustomInput.IsChecked == true ? Visibility.Visible : Visibility.Hidden;
+            await UpdateRecipients();
+        }
+
+        private async void MemberInput_SelectionChanged(object sender, RoutedEventArgs evt) {
+            await UpdateRecipients();
+        }
+
+        private async Task UpdateRecipients() {
+            if (RecipientsCustomInput.IsChecked == true) {
+                Recipients = MemberCustomInput.SelectedItems.Cast<Member>().ToList();
+            } else {
+                // FIXME NOT WORKING ON SECOND OPENING OF WINDOW
+                var year = (!await Context.Deliveries.AnyAsync()) ? 0 : await Context.Deliveries.Select(d => d.Year).MaxAsync();
+
+                IQueryable<Member> query = Context.Members.Where(m => m.IsActive);
+                if (MemberBranchInput.SelectedItems.Count != MemberBranchInput.Items.Count) {
+                    var zwst = MemberBranchInput.SelectedItems.Cast<Branch>().Select(b => b.ZwstId).ToList();
+                    query = query.Where(m => zwst.Contains(m.ZwstId));
+                }
+                if (MemberKgInput.SelectedItems.Count != MemberKgInput.Items.Count) {
+                    var kgs = MemberKgInput.SelectedItems.Cast<AT_Kg>().Select(k => k.KgNr).ToList();
+                    query = query.Where(m => kgs.Contains((int)m.DefaultKgNr));
+                }
+
+                if (RecipientsAreaComMembersInput.IsChecked == true) {
+                    var vtrg = MemberAreaComInput.SelectedItems.Cast<AreaComType>().Select(a => a.VtrgId).ToList();
+                    query = query.Where(m => m.AreaCommitments.Any(a => a.YearFrom <= year && (a.YearTo == null || a.YearTo >= year) && vtrg.Contains(a.VtrgId)));
+                } else if (year > 0 && RecipientsDeliveryMembersInput.IsChecked == true) {
+                    query = query.Where(m => m.Deliveries.Any(d => d.Year == year));
+                } else if (year > 0 && RecipientsNonDeliveryMembersInput.IsChecked == true) {
+                    query = query.Where(m => !m.Deliveries.Any(d => d.Year == year));
+                }
+                Recipients = await query.ToListAsync();
+            }
+            UpdatePostalEmailRecipients();
+        }
+
+        private void EmailInput_Changed(object sender, RoutedEventArgs evt) {
+            UpdatePostalEmailRecipients();
+        }
+
+        private void UpdatePostalEmailRecipients() {
+            EmailAllCount = Recipients.Count(m => m.EmailAddresses.Count > 0);
+            EmailWishCount = Recipients.Count(m => m.EmailAddresses.Count > 0 && m.ContactViaEmail);
+            PostalAllCount = Recipients.Count();
+            PostalWishCount = Recipients.Count(m => m.ContactViaPost);
+            var m = EmailAllInput.IsChecked == true ? 3 : EmailWishInput.IsChecked == true ? 2 : 1;
+            PostalNoEmailCount = PostalAllCount - (m == 3 ? EmailAllCount : m == 2 ? EmailWishCount : 0);
+        }
+
+        private async Task UpdateTextParameters() {
+            var changed = false;
+
+            var dcText = DeliveryConfirmationFooterInput.Text.Trim();
+            if (dcText.Length == 0) dcText = null;
+            if (dcText != App.Client.TextDeliveryConfirmation) {
+                App.Client.TextDeliveryConfirmation = dcText;
+                changed = true;
+            }
+
+            var cdText = CreditNoteFooterInput.Text.Trim();
+            if (cdText.Length == 0) cdText = null;
+            if (cdText != App.Client.TextCreditNote) {
+                App.Client.TextCreditNote = cdText;
+                changed = true;
+            }
+
+            var emailSubject = EmailSubjectInput.Text.Trim();
+            if (emailSubject.Length == 0) emailSubject = null;
+            if (emailSubject != App.Client.TextEmailSubject) {
+                App.Client.TextEmailSubject = emailSubject;
+                changed = true;
+            }
+
+            var emailBody = EmailBodyInput.Text.Trim();
+            if (emailBody.Length == 0) emailBody = null;
+            if (emailBody != App.Client.TextEmailBody) {
+                App.Client.TextEmailBody = emailBody;
+                changed = true;
+            }
+
+            if (changed)
+                await App.Client.UpdateValues();
+        }
+
+        private void DisposeDocs() {
+            PrintDocument?.Dispose();
+            PrintDocument = null;
+            if (EmailDocuments != null) {
+                foreach (var (m, docs) in EmailDocuments) {
+                    foreach (var d in docs) {
+                        d.Dispose();
+                    }
+                }
+                EmailDocuments = null;
+            }
+        }
+
+        private void Window_Closed(object sender, EventArgs evt) {
+            DisposeDocs();
+        }
+
+        private async void GenerateButton_Click(object sender, RoutedEventArgs evt) {
+            PreviewButton.IsEnabled = false;
+            PrintButton.IsEnabled = false;
+            EmailButton.IsEnabled = false;
+            Mouse.OverrideCursor = Cursors.AppStarting;
+            GenerateButton.IsEnabled = false;
+
+            DisposeDocs();
+            await UpdateTextParameters();
+
+            IEnumerable<Member> recipients = Recipients;
+            if (OrderMgNrInput.IsChecked == true) {
+                recipients = recipients
+                    .OrderBy(m => m.MgNr)
+                    .ToList();
+            } else if (OrderNameInput.IsChecked == true) {
+                recipients = recipients
+                    .OrderBy(m => m.FamilyName)
+                    .ThenBy(m => m.GivenName)
+                    .ThenBy(m => m.MgNr)
+                    .ToList();
+            } else if (OrderPlzInput.IsChecked == true) {
+                recipients = recipients
+                    .OrderBy(m => m.PostalDest.AtPlz.Plz)
+                    .ThenBy(m => m.PostalDest.AtPlz.Ort.Name)
+                    .ThenBy(m => m.FamilyName)
+                    .ThenBy(m => m.GivenName)
+                    .ThenBy(m => m.MgNr)
+                    .ToList();
+            }
+
+            var doublePaged = DoublePagedInput.IsChecked == true;
+            var docs = SelectedDocs.OrderByDescending(d => d.Type).ToList();
+
+            Dictionary<int, IDictionary<int, DeliveryConfirmationDeliveryData>> dcData = [];
+            Dictionary<(int, int), (IDictionary<int, CreditNoteDeliveryData>, IDictionary<int, PaymentMember>, BillingData)> cnData = [];
+            foreach (var doc in docs) {
+                if (doc.Type == DocType.DeliveryConfirmation) {
+                    var details = ((int, bool))doc.Details!;
+                    var year = details.Item1;
+                    dcData[year] = await DeliveryConfirmationDeliveryData.ForSeason(Context.DeliveryParts, year);
+                } else if (doc.Type == DocType.CreditNote) {
+                    var details = ((int, int))doc.Details!;
+                    var year = details.Item1;
+                    var avnr = details.Item2;
+                    try {
+                        cnData[(year, avnr)] = (
+                            await CreditNoteDeliveryData.ForPaymentVariant(Context.CreditNoteDeliveryRows, Context.Seasons, year, avnr),
+                            await Context.MemberPayments.Where(p => p.Year == year && p.AvNr == avnr).ToDictionaryAsync(c => c.MgNr),
+                            BillingData.FromJson((await Context.PaymentVariants.FindAsync(year, avnr))!.Data)
+                        );
+                    } catch (Exception exc) {
+                        MessageBox.Show(exc.Message, "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+                        GenerateButton.IsEnabled = true;
+                        Mouse.OverrideCursor = null;
+                        return;
+                    }
+                    await Context.GetMemberAreaCommitmentBuckets(year, 0);
+                }
+            }
+
+            var memberDocs = recipients.Select(m => new {
+                Member = m,
+                Docs = docs.SelectMany<SelectedDoc, GeneratedDoc>(doc => {
+                    if (doc.Type == DocType.Custom) {
+                        return [new GeneratedDoc((string)doc.Details!)];
+                    } else if (doc.Type == DocType.MemberDataSheet) {
+                        return [new GeneratedDoc(new MemberDataSheet(m, Context))];
+                    } else if (doc.Type == DocType.DeliveryConfirmation) {
+                        var details = ((int, bool))doc.Details!;
+                        var year = details.Item1;
+                        var include = details.Item2;
+                        DeliveryConfirmationDeliveryData data;
+                        if (dcData[year].TryGetValue(m.MgNr, out var d)) {
+                            data = d;
+                        } else if (include) {
+                            data = DeliveryConfirmationDeliveryData.CreateEmpty(year, m);
+                        } else {
+                            return [];
+                        }
+                        return [new GeneratedDoc(new DeliveryConfirmation(Context, year, m, data))];
+                    } else if (doc.Type == DocType.CreditNote) {
+                        var details = ((int, int))doc.Details!;
+                        var year = details.Item1;
+                        var avnr = details.Item2;
+                        var data = cnData[(year, avnr)];
+                        try {
+                            return [new GeneratedDoc(new CreditNote(
+                                Context, data.Item2[m.MgNr], data.Item1[m.MgNr],
+                                data.Item3.ConsiderContractPenalties,
+                                data.Item3.ConsiderTotalPenalty,
+                                data.Item3.ConsiderAutoBusinessShares,
+                                Context.GetMemberUnderDelivery(year, m.MgNr).GetAwaiter().GetResult()
+                            ))];
+                        } catch (Exception) {
+                            return [];
+                        }
+                    } else {
+                        throw new NotImplementedException("Invalid DocType");
+                    }
+                }).ToList()
+            }).ToList();
+
+            var printMode = PostalAllInput.IsChecked == true ? 3 :
+                PostalWishInput.IsChecked == true ? 2 :
+                PostalNoEmailInput.IsChecked == true ? 1 : 0;
+            var emailMode = EmailAllInput.IsChecked == true ? 2 : EmailWishInput.IsChecked == true ? 1 : 0;
+
+            double printNum = printMode == 3 ? PostalAllCount : printMode == 2 ? PostalWishCount : printMode == 2 ? PostalNoEmailCount : 0;
+            double emailNum = emailMode == 2 ? EmailAllCount : emailMode == 1 ? EmailWishCount : 0;
+            double totalNum = printNum + emailNum;
+
+            var email = memberDocs
+                .Where(d => d.Docs.Count > 0 && d.Member.EmailAddresses.Any() && (emailMode == 2 || (emailMode == 1 && d.Member.ContactViaEmail)))
+                .ToDictionary(d => d.Member, m => {
+                    var docs = m.Docs.Select(d => d.Doc).ToList();
+                    foreach (var doc in docs) {
+                        doc!.DoubleSided = false;
+                        if (doc is BusinessDocument b)
+                            b.IncludeSender = false;
+                    };
+                    return docs;
+                });
+            var emailRecipients = email.Select(d => d.Key.MgNr).ToHashSet();
+            foreach (var item1 in email.Select((e, i) => new { Index = i, e.Key, e.Value })) {
+                foreach (var item2 in item1.Value.Select((d, i) => new { Index = i, Doc = d})) {
+                    await item2.Doc.Generate(new Progress<double>(v => {
+                        ProgressBar.Value = v * (item2.Index + 1) / item1.Value.Count / totalNum + 100.0 * item1.Index / totalNum;
+                    }));
+                }
+            }
+            if (email.Count > 0) {
+                EmailDocuments = email;
+            }
+
+            var printDocs = memberDocs
+                .Where(d =>
+                    printMode == 3 ||
+                    (printMode == 2 && d.Member.ContactViaPost) ||
+                    (printMode == 1 && !emailRecipients.Contains(d.Member.MgNr)))
+                .SelectMany(m => {
+                    var docs = m.Docs.Select(d => d.Doc).ToList();
+                    if (docs.Count == 0 || m.Docs[0].Type == DocType.Custom) {
+                        docs.Insert(0, new Letterhead(m.Member));
+                    }
+                    docs.ForEach(doc => doc.DoubleSided = doublePaged);
+                    if (docs.Count > 0 && docs[0] is BusinessDocument b)
+                        b.IncludeSender = true;
+                    return docs;
+                })
+                .ToList();
+
+            if (printDocs.Count > 0) {
+                var print = Document.Merge(printDocs);
+                print.DoubleSided = doublePaged;
+                await print.Generate(new Progress<double>(v => {
+                    ProgressBar.Value = 100.0 * emailNum / totalNum + v * printNum / totalNum;
+                }));
+                PrintDocument = print;
+            }
+            ProgressBar.Value = 100.0;
+
+            GenerateButton.IsEnabled = true;
+            Mouse.OverrideCursor = null;
+            PreviewButton.IsEnabled = true;
+            //PrintButton.IsEnabled = true;
+            //EmailButton.IsEnabled = true;
+        }
+
+        private void PreviewButton_Click(object sender, RoutedEventArgs evt) {
+            var d = new OpenFolderDialog() {
+                Title = "Ordner auswählen - Elwig",
+            };
+            if (d.ShowDialog() == true) {
+                Mouse.OverrideCursor = Cursors.AppStarting;
+                PrintDocument?.SaveTo($"{d.FolderName}/Print.pdf");
+                if (EmailDocuments != null) {
+                    foreach (var (m, docs) in EmailDocuments) {
+                        var folder = $"{d.FolderName}/E-Mail/{m.AdministrativeName}";
+                        Directory.CreateDirectory(folder);
+                        foreach (var item in docs.Select((d, i) => new { Index = i, Doc = d })) {
+                            var doc = item.Doc;
+                            var name = Regex.Replace(doc.Title.Replace('/', '-'), @"[^A-Za-z0-9ÄÜÖẞäöüß-]+", "_");
+                            doc.SaveTo($"{folder}/{item.Index + 1:00}.{name}.pdf");
+                        }
+
+                    }
+                }
+                Mouse.OverrideCursor = null;
+                Process.Start("explorer.exe", d.FolderName);
+            }
+        }
+    }
+}

Elwig/Windows/MainWindow.xaml

@@ -1,15 +1,12 @@
 <Window x:Class="Elwig.Windows.MainWindow"
         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"
+        Title="Elwig" Height="390" Width="520" ResizeMode="CanMinimize"
-        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:local="clr-namespace:Elwig.Windows"
-        Title="Elwig" MinHeight="400" MinWidth="325" Height="450" Width="800" ResizeMode="CanResize"
         Loaded="Window_Loaded" Closing="Window_Closing">
     <Window.Resources>
         <Style TargetType="Button">
             <Setter Property="VerticalAlignment" Value="Top"/>
-            <Setter Property="HorizontalAlignment" Value="Left"/>
+            <Setter Property="HorizontalAlignment" Value="Center"/>
             <Setter Property="FontSize" Value="14"/>
             <Setter Property="Padding" Value="9,3"/>
             <Setter Property="Height" Value="32"/>
@@ -19,13 +16,16 @@
     <Grid>
         <Menu BorderThickness="0,0,0,1" VerticalAlignment="Top" Height="19" BorderBrush="LightGray" Background="White">
             <MenuItem Header="Datenbank">
-                <MenuItem Header="Backup erstellen"/>
+                <MenuItem Header="Abfragen stellen" Click="Menu_Database_Query_Click"/>
+                <!--MenuItem Header="Backup erstellen"/-->
             </MenuItem>
-            <MenuItem Header="Hilfe">
+            <MenuItem x:Name="HelpMenu" Header="Hilfe">
                 <MenuItem Header="Über"/>
+                <MenuItem x:Name="TestWindowButton" Header="Test-Fenster" Click="Menu_Help_TestWindow_Click"/>
             </MenuItem>
         </Menu>
-        <Grid Height="100" VerticalAlignment="Top" Margin="25,25,0,0">
+
+        <Grid Height="100" VerticalAlignment="Top" Margin="0,45,0,0" Width="260">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="100"/>
                 <ColumnDefinition Width="*"/>
@@ -45,19 +45,16 @@
         </Grid>
 
         <Button x:Name="MemberAdminButton" Content="Mitglieder" Click="MemberAdminButton_Click"
-                Margin="50,160,0,0"/>
+                Margin="0,180,210,0"/>
-        <Button x:Name="ReceiptButton" Content="Übernahme" Click="ReceiptButton_Click"
+        <Button x:Name="MailButton" Content="Rundschreiben" Click="MailButton_Click"
-                Margin="50,200,0,0"/>
+                Margin="210,180,0,0"/>
         <Button x:Name="DeliveryAdminButton" Content="Lieferungen" Click="DeliveryAdminButton_Click"
-                Margin="50,240,0,0"/>
+                Margin="0,220,210,0"/>
-        <Button x:Name="SeasonFinishButton" Content="Leseabschluss" Click="SeasonFinishButton_Click"
+        <Button x:Name="ReceiptButton" Content="Übernahme" Click="ReceiptButton_Click"
-                Margin="50,280,0,0"/>
+                Margin="210,220,0,0"/>
         <Button x:Name="BaseDataButton" Content="Stammdaten" Click="BaseDataButton_Click"
-                Margin="50,320,0,0"/>
+                Margin="0,260,210,0"/>
-
+        <Button x:Name="SeasonFinishButton" Content="Leseabschluss" Click="SeasonFinishButton_Click"
-        <Button x:Name="TestWindowButton" Content="Test Fenster" Click="TestWindowButton_Click"
+                Margin="210,260,0,0"/>
-                Margin="260,280,0,0"/>
-        <Button x:Name="QueryWindowButton" Content="Datenbankabfragen" Click="QueryWindowButton_Click"
-                Margin="260,320,0,0"/>
     </Grid>
 </Window>

Elwig/Windows/MainWindow.xaml.cs

@@ -11,7 +11,7 @@ namespace Elwig.Windows {
             VersionField.Text = "Version: " + (v == null ? "?" : $"{v.Major}.{v.Minor}.{v.Build}") + $" – {App.BranchName}";
             if (App.Client.Client == null) VersionField.Text += " (Unbekannt)";
             if (!App.Config.Debug) {
-                TestWindowButton.Visibility = Visibility.Hidden;
+                HelpMenu.Items.Remove(TestWindowButton);
                 //QueryWindowButton.Visibility = Visibility.Hidden;
             }
         }
@@ -20,7 +20,7 @@ namespace Elwig.Windows {
 
         private void Window_Closing(object sender, CancelEventArgs evt) {
             if (App.NumWindows > 1) {
-                var res = MessageBox.Show("Es sind noch weitere Fenster geschlossen.\nSollen alle Fenster geschlossen werden?",
+                var res = MessageBox.Show("Es sind noch weitere Fenster geöffnet.\nSollen alle Fenster geschlossen werden?",
                     "Elwig beenden", MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
                 if (res != MessageBoxResult.Yes) {
                     evt.Cancel = true;
@@ -30,6 +30,16 @@ namespace Elwig.Windows {
             }
         }
 
+        private void Menu_Help_TestWindow_Click(object sender, RoutedEventArgs evt) {
+            var w = new TestWindow();
+            w.Show();
+        }
+
+        private void Menu_Database_Query_Click(object sender, RoutedEventArgs evt) {
+            var w = new QueryWindow();
+            w.Show();
+        }
+
         private void MemberAdminButton_Click(object sender, RoutedEventArgs evt) {
             var w = new MemberAdminWindow();
             w.Show();
@@ -44,26 +54,16 @@ namespace Elwig.Windows {
             w.Show();
         }
 
-        private void DeliveryListButton_Click(object sender, RoutedEventArgs evt) {
-            // TODO
-        }
-
-        private void TestWindowButton_Click(object sender, RoutedEventArgs evt) {
-            var w = new TestWindow();
-            w.Show();
-        }
-
-        private void QueryWindowButton_Click(object sender, RoutedEventArgs evt) {
-            var w = new QueryWindow();
-            w.Show();
-        }
-
         private void BaseDataButton_Click(object sender, RoutedEventArgs evt) {
             App.FocusBaseData();
         }
 
-        private void SeasonFinishButton_Click(object sender, RoutedEventArgs e) {
+        private void SeasonFinishButton_Click(object sender, RoutedEventArgs evt) {
             App.FocusSeasonFinish();
         }
+
+        private void MailButton_Click(object sender, RoutedEventArgs evt) {
+            App.FocusMailWindow();
+        }
     }
 }