feat(accounts): preview and confirm cross-year balance corrections (U12)

src/Duempelkas.App/Components/Dialogs/EditCarryoverDialog.razor.cs

@@ -1,39 +1,36 @@
 using Microsoft.AspNetCore.Components;
-
+using Duempelkas.App.Services;
 namespace Duempelkas.App.Components.Dialogs;
 
 public partial class EditCarryoverDialog
 {
-    #region Parameters
-
-    [Parameter]
-    public decimal CurrentAmount { get; set; }
-
-    [Parameter]
-    public EventCallback<decimal> OnSave { get; set; }
-
-    [Parameter]
-    public EventCallback OnCancel { get; set; }
-
-    #endregion
-
-    #region Fields
-
-    private decimal amount;
-
-    #endregion
-
-    #region Lifecycle
-
-    protected override void OnParametersSet() => amount = CurrentAmount;
-
-    #endregion
-
-    #region Actions
-
-    private async Task Save() => await OnSave.InvokeAsync(amount);
-
-    private async Task Cancel() { if (modal != null) await modal.RequestCloseAsync(); else await OnCancel.InvokeAsync(); }
-
-    #endregion
+    [Parameter] public decimal CurrentAmount { get; set; }
+    [Parameter] public decimal InitialBalance { get; set; }
+    [Parameter] public decimal CurrentEndBalance { get; set; }
+    [Parameter] public int? Year { get; set; }
+    [Parameter] public string AccountName { get; set; } = "Konto";
+    [Parameter] public EventCallback<decimal> OnSave { get; set; }
+    [Parameter] public EventCallback OnCancel { get; set; }
+    private string amountText = string.Empty;
+    private bool acknowledged;
+    private bool initialized;
+    private bool saving;
+    private bool ValidAmount => BookingInput.TryBalance(amountText, out _);
+    private decimal amount => BookingInput.TryBalance(amountText, out var value) ? value : CurrentAmount;
+    private decimal Delta => amount - CurrentAmount;
+    private static string Money(decimal value) => value.ToString("N2", System.Globalization.CultureInfo.GetCultureInfo("de-DE")) + " €";
+    protected override void OnParametersSet()
+    {
+        if (!initialized) { amountText = CurrentAmount.ToString("0.00", System.Globalization.CultureInfo.GetCultureInfo("de-DE")); initialized = true; }
+    }
+    private void ChangeAmount(string value) { amountText = value; acknowledged = false; }
+    private async Task Save()
+    {
+        if (saving || !ValidAmount || !acknowledged || Delta == 0m) return;
+        saving = true;
+        try { await OnSave.InvokeAsync(amount); }
+        catch (Exception ex) { Toasts.Show("Die Korrektur konnte nicht gespeichert werden. Bitte den aktuellen Bestand prüfen.", ToastKind.Error, ex.Message); }
+        finally { saving = false; }
+    }
+    private Task Cancel() => modal?.RequestCloseAsync() ?? Task.CompletedTask;
 }