refactor(app): split MainWindowViewModel into partial files by area

1300-line monolith → 7 focused files (max 359 lines each): MainWindowViewModel.cs core fields, constructor, lifecycle MainWindowViewModel.Wizard.cs setup wizard and wallet open/close flows MainWindowViewModel.Settings.cs language, unit, overlay flags MainWindowViewModel.Sync.cs server config, connection, sync loop MainWindowViewModel.Send.cs send panel MainWindowViewModel.Contacts.cs contact management MainWindowViewModel.Receive.cs balance display, QR, addresses, tx details No behaviour change, no XAML change, 127/127 tests pass.
2026-06-13 21:15:03 +02:00
parent 58645bd7a7
commit 2ddc0f920c
7 changed files with 1140 additions and 1169 deletions
@@ -0,0 +1,99 @@
+using System;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using NBitcoin;
+using PalladiumWallet.Core.Chain;
+using PalladiumWallet.Core.Net;
+using PalladiumWallet.Core.Wallet;
+
+namespace PalladiumWallet.App.ViewModels;
+
+public partial class MainWindowViewModel
+{
+    [ObservableProperty]
+    private string sendTo = "";
+
+    [ObservableProperty]
+    private string sendAmount = "";
+
+    [ObservableProperty]
+    private string sendFeeRate = "1";
+
+    [ObservableProperty]
+    private bool sendAll;
+
+    [ObservableProperty]
+    private string sendPreview = "";
+
+    [ObservableProperty]
+    private bool hasPendingSend;
+
+    [RelayCommand]
+    private async Task PrepareSend()
+    {
+        if (_account is null || _doc?.Cache is null)
+        {
+            SendPreview = "Sincronizza prima di inviare.";
+            return;
+        }
+        try
+        {
+            if (_lastTransactions is null)
+            {
+                SendPreview = "Connettiti al server e sincronizza prima di inviare.";
+                return;
+            }
+
+            var destination = BitcoinAddress.Create(SendTo.Trim(), PalladiumNetworks.For(Net));
+            long amount = 0;
+            if (!SendAll && !CoinAmount.TryParseIn(SendAmount, _config.Unit, out amount))
+            {
+                SendPreview = "Importo non valido.";
+                return;
+            }
+            if (!decimal.TryParse(SendFeeRate, out var feeRate) || feeRate <= 0)
+            {
+                SendPreview = "Fee rate non valido.";
+                return;
+            }
+
+            _pendingSend = new TransactionFactory(_account).Build(
+                _doc.Cache.Utxos, _lastTransactions, destination, amount, feeRate,
+                _doc.Cache.NextChangeIndex, SendAll);
+
+            SendPreview = $"txid {_pendingSend.Txid[..16]}… · " +
+                $"fee {Fmt(_pendingSend.Fee.Satoshi)} " +
+                $"({_pendingSend.Transaction.GetVirtualSize()} vB)" +
+                (_pendingSend.Signed ? "" : " · NON firmata (watch-only)");
+            HasPendingSend = _pendingSend.Signed;
+        }
+        catch (Exception ex)
+        {
+            _pendingSend = null;
+            HasPendingSend = false;
+            SendPreview = $"Errore: {ex.Message}";
+        }
+        await Task.CompletedTask;
+    }
+
+    [RelayCommand]
+    private async Task ConfirmSend()
+    {
+        if (_pendingSend is null || _client is null)
+            return;
+        try
+        {
+            var txid = await _client.BroadcastAsync(_pendingSend.ToHex());
+            SendPreview = $"Trasmessa: {txid}";
+            SendTo = SendAmount = "";
+            _pendingSend = null;
+            HasPendingSend = false;
+            await ConnectAndSync();
+        }
+        catch (Exception ex)
+        {
+            SendPreview = $"Errore broadcast: {ex.Message}";
+        }
+    }
+}