[#44] BaseDataWindow: Add button to add/delete seasons

Elwig/Windows/BaseDataWindow.xaml.Season.cs

@@ -1,10 +1,14 @@
-using Elwig.Helpers;
+using Elwig.Dialogs;
+using Elwig.Helpers;
 using Elwig.Models.Entities;
 using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Input;
 
 namespace Elwig.Windows {
     public partial class BaseDataWindow {
@@ -13,17 +17,23 @@ namespace Elwig.Windows {
         private bool _seasonUpdate = false;
 
         private async Task SeasonsInitEditing(AppDbContext ctx) {
+            SeasonAddButton.IsEnabled = false;
+            SeasonRemoveButton.IsEnabled = false;
             ControlUtils.RenewItemsSource(SeasonList, await ctx.Seasons
                 .OrderByDescending(s => s.Year)
                 .Include(s => s.Modifiers)
+                .Include(s => s.Currency)
                 .ToListAsync());
             SeasonList_SelectionChanged(null, null);
         }
 
         private async Task SeasonsFinishEditing(AppDbContext ctx) {
+            SeasonAddButton.IsEnabled = true;
+            SeasonRemoveButton.IsEnabled = true;
             ControlUtils.RenewItemsSource(SeasonList, await ctx.Seasons
                 .OrderByDescending(s => s.Year)
                 .Include(s => s.Modifiers)
+                .Include(s => s.Currency)
                 .ToListAsync());
             _seasonChanged = false;
         }
@@ -133,5 +143,84 @@ namespace Elwig.Windows {
             InputTextChanged((TextBox)sender, Validator.CheckDecimal((TextBox)sender, false, 4, s.Precision));
             Season_Changed(sender, evt);
         }
+
+        private async void SeasonAddButton_Click(object sender, RoutedEventArgs evt) {
+            var s = SeasonList.ItemsSource.Cast<Season>().FirstOrDefault();
+            var year = Utils.CurrentYear;
+            if (year == s?.Year) year++;
+
+            List<Currency> currencies;
+            using (var ctx = new AppDbContext()) {
+                currencies = await ctx.Currencies
+                    .OrderBy(c => c.Code)
+                    .ToListAsync();
+            }
+            var d = new NewSeasonDialog(s, currencies);
+            if (d.ShowDialog() == true) {
+                Mouse.OverrideCursor = Cursors.AppStarting;
+                try {
+                    using var ctx = new AppDbContext();
+                    ctx.Add(new Season {
+                        Year = year,
+                        CurrencyCode = d.CurrencyCode,
+                        Precision = d.Precision,
+                        MaxKgPerHa = s?.MaxKgPerHa ?? 10000,
+                        VatNormal = s?.VatNormal ?? 0.10,
+                        VatFlatrate = s?.VatFlatrate ?? 0.13,
+                        MinKgPerBusinessShare = s?.MinKgPerBusinessShare ?? 500,
+                        MaxKgPerBusinessShare = s?.MaxKgPerBusinessShare ?? 1000,
+                        PenaltyPerKgValue = s?.PenaltyPerKgValue,
+                        PenaltyAmoutValue = s?.PenaltyAmoutValue,
+                        PenaltyNoneValue = s?.PenaltyNoneValue,
+                        PenaltyPerBsAmountValue = s?.PenaltyPerBsAmountValue,
+                        PenaltyPerBsNoneValue = s?.PenaltyPerBsNoneValue,
+                        BusinessShareValueValue = s?.BusinessShareValueValue,
+                        CalcMode = s?.CalcMode ?? 0,
+                    });
+                    if (s != null && d.CopyModifiers) {
+                        ctx.AddRange(s.Modifiers.Select(m => new Modifier {
+                            Year = year,
+                            ModId = m.ModId,
+                            Ordering = m.Ordering,
+                            Name = m.Name,
+                            AbsValue = m.AbsValue,
+                            RelValue = m.RelValue,
+                            IsStandard = m.IsStandard,
+                            IsQuickSelect = m.IsQuickSelect,
+                        }));
+                    }
+                    await ctx.SaveChangesAsync();
+                } 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, "Saison anlegen", MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+                await App.HintContextChange();
+                Mouse.OverrideCursor = null;
+                SeasonList.SelectedIndex = 0;
+            }
+        }
+
+        private async void SeasonRemoveButton_Click(object sender, RoutedEventArgs evt) {
+            if (SeasonList.SelectedItem is not Season s)
+                return;
+            var r = MessageBox.Show(
+                $"Soll die Saison {s.Year} wirklich unwiderruflich gelöscht werden?",
+                "Saison löschen", MessageBoxButton.OKCancel, MessageBoxImage.Warning, MessageBoxResult.Cancel);
+            if (r == MessageBoxResult.OK) {
+                Mouse.OverrideCursor = Cursors.AppStarting;
+                try {
+                    using var ctx = new AppDbContext();
+                    ctx.Remove(s);
+                    await ctx.SaveChangesAsync();
+                } 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, "Saison löschen", MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+                await App.HintContextChange();
+                Mouse.OverrideCursor = null;
+            }
+        }
     }
 }