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feat(app): server selector, peer discovery, address view, menu bar, keep-alive

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This commit is contained in:
Davide Grilli
2026-06-11 11:27:41 +02:00
parent 08217e5306
commit 46d8c19784
3 changed files with 283 additions and 31 deletions
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src/App/ViewModels/MainWindowViewModel.cs
+174 -6
View File
@@ -1,6 +1,8 @@
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Avalonia.Threading;
using CommunityToolkit.Mvvm.ComponentModel;
@@ -18,6 +20,9 @@ namespace PalladiumWallet.App.ViewModels;
/// <summary>Riga dello storico transazioni per la vista.</summary>
public sealed record HistoryRow(string Conferma, string Importo, string Txid, string Verificata);
/// <summary>Riga della vista indirizzi (stile Electrum): saldo e uso per indirizzo.</summary>
public sealed record AddressRow(string Tipo, int Indice, string Indirizzo, string Saldo, string NumTx);
/// <summary>
/// ViewModel unico dell'applicazione (wizard §15 ridotto + dashboard):
/// pannello di setup (crea/ripristina/apri) e pannello wallet
@@ -33,6 +38,14 @@ public partial class MainWindowViewModel : ViewModelBase
private IReadOnlyDictionary<string, Transaction>? _lastTransactions;
private BuiltTransaction? _pendingSend;
/// <summary>File in attesa di password (apertura da menu File → Apri).</summary>
private string? _pendingOpenPath;
/// <summary>Dopo la prima connessione riuscita il timer riconnette da solo.</summary>
private bool _autoReconnect;
private readonly DispatcherTimer _keepAliveTimer;
// ---- selezione rete e stato pannelli ----
public string[] Networks { get; } = ["mainnet", "testnet", "regtest"];
@@ -86,11 +99,21 @@ public partial class MainWindowViewModel : ViewModelBase
[ObservableProperty]
private string connectionStatus = "non connesso";
[ObservableProperty]
private bool isConnected;
[ObservableProperty]
private bool isSyncing;
public ObservableCollection<KnownServer> KnownServers { get; } = [];
[ObservableProperty]
private KnownServer? selectedKnownServer;
public ObservableCollection<HistoryRow> History { get; } = [];
public ObservableCollection<AddressRow> Addresses { get; } = [];
// ---- pannello invia ----
[ObservableProperty]
@@ -114,6 +137,34 @@ public partial class MainWindowViewModel : ViewModelBase
public MainWindowViewModel()
{
RefreshSetupState();
// Aggiornamenti continui (§9): ping periodico per tenere viva la
// connessione e accorgersi subito della caduta; se cade, riconnette
// e risincronizza da solo. Le notifiche push restano la via principale.
_keepAliveTimer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(20) };
_keepAliveTimer.Tick += async (_, _) => await KeepAliveTickAsync();
_keepAliveTimer.Start();
}
private async Task KeepAliveTickAsync()
{
if (!IsWalletOpen || IsSyncing)
return;
if (_client is { IsConnected: true })
{
try
{
await _client.PingAsync();
}
catch
{
// La caduta viene gestita dall'evento Disconnected.
}
}
else if (_autoReconnect)
{
ConnectionStatus = "riconnessione…";
await ConnectAndSync();
}
}
private NetKind Net => Enum.Parse<NetKind>(SelectedNetwork, ignoreCase: true);
@@ -121,13 +172,37 @@ public partial class MainWindowViewModel : ViewModelBase
partial void OnSelectedNetworkChanged(string value) => RefreshSetupState();
private ServerRegistry Registry => new(Profile, AppPaths.ServersPath(Net));
private void RefreshSetupState()
{
WalletFileExists = WalletStore.Exists(AppPaths.DefaultWalletPath(Net));
StatusMessage = WalletFileExists
? "Trovato un wallet esistente: inserisci la password (se impostata) e apri."
: "Nessun wallet su questa rete: creane uno nuovo o ripristina da seed.";
ServerInput = $"127.0.0.1:{Profile.DefaultTcpPort}";
RefreshServers();
}
private void RefreshServers()
{
KnownServers.Clear();
foreach (var server in Registry.All)
KnownServers.Add(server);
SelectedKnownServer = KnownServers.FirstOrDefault();
if (SelectedKnownServer is null)
ServerInput = $"127.0.0.1:{Profile.DefaultTcpPort}";
}
partial void OnSelectedKnownServerChanged(KnownServer? value)
{
if (value is not null)
ServerInput = $"{value.Host}:{value.PortFor(UseSsl)}";
}
partial void OnUseSslChanged(bool value)
{
if (SelectedKnownServer is { } server)
ServerInput = $"{server.Host}:{server.PortFor(value)}";
}
// ---------- comandi setup ----------
@@ -149,7 +224,10 @@ public partial class MainWindowViewModel : ViewModelBase
string.IsNullOrEmpty(PassphraseInput) ? null : PassphraseInput,
ScriptKind.NativeSegwit,
Profile);
// Mai sovrascrivere un wallet esistente: si cerca il primo nome libero.
var path = AppPaths.DefaultWalletPath(Net);
for (var n = 2; WalletStore.Exists(path); n++)
path = Path.Combine(AppPaths.WalletsDir(Net), $"wallet-{n}.wallet.json");
var password = string.IsNullOrEmpty(PasswordInput) ? null : PasswordInput;
WalletStore.Save(doc, path, password);
OpenLoaded(doc, account, path, password);
@@ -165,9 +243,10 @@ public partial class MainWindowViewModel : ViewModelBase
{
try
{
var path = AppPaths.DefaultWalletPath(Net);
var path = _pendingOpenPath ?? AppPaths.DefaultWalletPath(Net);
var password = string.IsNullOrEmpty(PasswordInput) ? null : PasswordInput;
var doc = WalletStore.Load(path, password);
_pendingOpenPath = null;
OpenLoaded(doc, WalletLoader.ToAccount(doc), path, password);
}
catch (WrongPasswordException)
@@ -180,8 +259,45 @@ public partial class MainWindowViewModel : ViewModelBase
}
}
/// <summary>Apertura di un file wallet qualunque (menu File → Apri, multi-wallet §8).</summary>
public void OpenFromPath(string path)
{
try
{
if (IsWalletOpen)
CloseWallet();
var doc = WalletStore.Load(path);
OpenLoaded(doc, WalletLoader.ToAccount(doc), path, password: null);
}
catch (WrongPasswordException)
{
// Cifrato: si chiede la password nel pannello di apertura.
if (IsWalletOpen)
CloseWallet();
_pendingOpenPath = path;
WalletFileExists = true;
StatusMessage = $"Il wallet \"{Path.GetFileName(path)}\" è cifrato: inserisci la password e premi Apri.";
}
catch (Exception ex)
{
StatusMessage = $"Errore: {ex.Message}";
}
}
/// <summary>Torna al pannello di setup per creare/ripristinare un altro wallet.</summary>
[RelayCommand]
private void NewWallet()
{
if (IsWalletOpen)
CloseWallet();
_pendingOpenPath = null;
StatusMessage = "Crea un nuovo wallet o ripristina da seed. ATTENZIONE: sovrascrive il wallet di default della rete selezionata.";
}
private void OpenLoaded(WalletDocument doc, HdAccount account, string path, string? password)
{
// La rete del wallet comanda (registry, pin TLS, indirizzi).
SelectedNetwork = doc.Network;
_doc = doc;
_account = account;
_walletPath = path;
@@ -207,11 +323,19 @@ public partial class MainWindowViewModel : ViewModelBase
UnconfirmedText = "";
ReceiveAddress = _account.GetReceiveAddress(0).ToString();
History.Clear();
// Prima della sincronizzazione si mostrano i primi indirizzi derivati.
Addresses.Clear();
for (var i = 0; i < 10; i++)
Addresses.Add(new AddressRow("ricezione", i,
_account.GetReceiveAddress(i).ToString(), "—", "—"));
return;
}
BalanceText = CoinAmount.Format(cache.ConfirmedSats, Profile.CoinUnit);
UnconfirmedText = cache.UnconfirmedSats != 0
? $"+ {CoinAmount.Format(cache.UnconfirmedSats)} non confermato"
// Saldo in attesa: somma delle tx in mempool (può essere negativo per
// gli invii in uscita non ancora confermati).
var pending = cache.History.Where(t => t.Height <= 0).Sum(t => t.DeltaSats);
UnconfirmedText = pending != 0
? $"in mempool: {(pending > 0 ? "+" : "")}{CoinAmount.Format(pending)} (in attesa di conferma)"
: "";
ReceiveAddress = _account.GetReceiveAddress(cache.NextReceiveIndex).ToString();
History.Clear();
@@ -221,6 +345,15 @@ public partial class MainWindowViewModel : ViewModelBase
(tx.DeltaSats >= 0 ? "+" : "") + CoinAmount.Format(tx.DeltaSats),
tx.Txid,
tx.Verified ? "✓ SPV" : "—"));
Addresses.Clear();
foreach (var a in cache.Addresses)
Addresses.Add(new AddressRow(
a.IsChange ? "change" : "ricezione",
a.Index,
a.Address,
a.BalanceSats > 0 ? CoinAmount.Format(a.BalanceSats) : (a.TxCount > 0 ? "0" : "—"),
a.TxCount > 0 ? a.TxCount.ToString() : "—"));
}
// ---------- comandi wallet ----------
@@ -242,7 +375,12 @@ public partial class MainWindowViewModel : ViewModelBase
_client = await ElectrumClient.ConnectAsync(host, port, UseSsl, pins);
_client.NotificationReceived += OnServerNotification;
_client.Disconnected += _ => Dispatcher.UIThread.Post(() =>
ConnectionStatus = "disconnesso");
{
IsConnected = false;
ConnectionStatus = "disconnesso";
});
IsConnected = true;
_autoReconnect = true;
ConnectionStatus = $"connesso a {host}:{port}{(UseSsl ? " (TLS)" : "")}";
}
@@ -260,6 +398,7 @@ public partial class MainWindowViewModel : ViewModelBase
NextChangeIndex = result.NextChangeIndex,
History = [.. result.History],
Utxos = [.. result.Utxos],
Addresses = [.. result.AddressRows],
};
WalletStore.Save(_doc, _walletPath!, _password);
ApplyCache(_doc.Cache);
@@ -268,12 +407,14 @@ public partial class MainWindowViewModel : ViewModelBase
}
catch (CertificatePinMismatchException ex)
{
IsConnected = false;
ConnectionStatus = "certificato cambiato";
StatusMessage = ex.Message;
}
catch (Exception ex)
{
ConnectionStatus = "errore";
IsConnected = _client?.IsConnected == true;
ConnectionStatus = IsConnected ? ConnectionStatus : "errore di connessione";
StatusMessage = $"Errore: {ex.Message}";
}
finally
@@ -282,6 +423,32 @@ public partial class MainWindowViewModel : ViewModelBase
}
}
/// <summary>Scopre nuovi server dai peer annunciati dal server connesso (§9).</summary>
[RelayCommand]
private async Task DiscoverServers()
{
if (_client is null || !_client.IsConnected)
{
StatusMessage = "Connettiti a un server prima di cercare i peer.";
return;
}
try
{
var added = await Registry.DiscoverAsync(_client);
var selected = SelectedKnownServer;
RefreshServers();
SelectedKnownServer = KnownServers.FirstOrDefault(s => s.Host == selected?.Host)
?? KnownServers.FirstOrDefault();
StatusMessage = added > 0
? $"Trovati {added} nuovi server dai peer (totale {KnownServers.Count})."
: $"Nessun nuovo server annunciato (totale {KnownServers.Count}).";
}
catch (Exception ex)
{
StatusMessage = $"Errore nella scoperta peer: {ex.Message}";
}
}
private void OnServerNotification(string method, System.Text.Json.JsonElement payload)
{
// Cambiamento su un nostro indirizzo o nuovo blocco: risincronizza.
@@ -380,6 +547,7 @@ public partial class MainWindowViewModel : ViewModelBase
HasPendingSend = false;
History.Clear();
IsWalletOpen = false;
IsConnected = false;
ConnectionStatus = "non connesso";
RefreshSetupState();
}
src/App/Views/MainWindow.axaml
+74 -14
View File
@@ -14,10 +14,25 @@
<vm:MainWindowViewModel/>
</Design.DataContext>
<Grid RowDefinitions="*,Auto">
<Grid RowDefinitions="Auto,*,Auto">
<!-- ============ MENU (stile Electrum) ============ -->
<Menu Grid.Row="0">
<MenuItem Header="_File">
<MenuItem Header="Nuovo / ripristina wallet…" Command="{Binding NewWalletCommand}"/>
<MenuItem Header="Apri wallet da file…" Click="OnOpenWalletFileClick"/>
<Separator/>
<MenuItem Header="Chiudi wallet" Command="{Binding CloseWalletCommand}"
IsEnabled="{Binding IsWalletOpen}"/>
</MenuItem>
<MenuItem Header="_Rete">
<MenuItem Header="Cerca altri server (peer)" Command="{Binding DiscoverServersCommand}"/>
<MenuItem Header="Reset certificati SSL" Command="{Binding ResetCertificatesCommand}"/>
</MenuItem>
</Menu>
<!-- ============ PANNELLO SETUP: crea / ripristina / apri ============ -->
<ScrollViewer Grid.Row="0" IsVisible="{Binding IsSetupVisible}">
<ScrollViewer Grid.Row="1" IsVisible="{Binding IsSetupVisible}">
<StackPanel MaxWidth="560" Margin="24" Spacing="14">
<TextBlock Text="Palladium Wallet" FontSize="28" FontWeight="Bold"/>
@@ -58,7 +73,7 @@
</ScrollViewer>
<!-- ============ PANNELLO WALLET ============ -->
<Grid Grid.Row="0" RowDefinitions="Auto,Auto,*" IsVisible="{Binding IsWalletOpen}" Margin="16">
<Grid Grid.Row="1" RowDefinitions="Auto,Auto,*" IsVisible="{Binding IsWalletOpen}" Margin="16">
<!-- Testata: saldo + rete + chiudi -->
<Grid Grid.Row="0" ColumnDefinitions="*,Auto">
@@ -74,17 +89,36 @@
<!-- Server -->
<Border Grid.Row="1" Margin="0,12,0,12" Padding="10"
BorderBrush="Gray" BorderThickness="1" CornerRadius="6">
<Grid ColumnDefinitions="Auto,*,Auto,Auto,Auto,Auto">
<TextBlock Grid.Column="0" Text="Server:" VerticalAlignment="Center" Margin="0,0,8,0"/>
<TextBox Grid.Column="1" Text="{Binding ServerInput}"
PlaceholderText="host:porta del server di indicizzazione"/>
<CheckBox Grid.Column="2" Content="TLS" IsChecked="{Binding UseSsl}" Margin="8,0"/>
<Button Grid.Column="3" Content="Connetti e sincronizza"
<Grid RowDefinitions="Auto,Auto" ColumnDefinitions="Auto,*,Auto,Auto">
<TextBlock Grid.Row="0" Grid.Column="0" Text="Server:"
VerticalAlignment="Center" Margin="0,0,8,0"/>
<ComboBox Grid.Row="0" Grid.Column="1"
ItemsSource="{Binding KnownServers}"
SelectedItem="{Binding SelectedKnownServer}"
HorizontalAlignment="Stretch"/>
<CheckBox Grid.Row="0" Grid.Column="2" Content="TLS"
IsChecked="{Binding UseSsl}" Margin="8,0"/>
<Button Grid.Row="0" Grid.Column="3" Content="Connetti e sincronizza"
Command="{Binding ConnectAndSyncCommand}" IsEnabled="{Binding !IsSyncing}"/>
<Button Grid.Column="4" Content="Reset cert." Margin="6,0,0,0"
Command="{Binding ResetCertificatesCommand}"/>
<TextBlock Grid.Column="5" Text="{Binding ConnectionStatus}"
VerticalAlignment="Center" Margin="10,0,0,0" Foreground="Gray"/>
<StackPanel Grid.Row="1" Grid.Column="1" Orientation="Horizontal"
Spacing="8" Margin="0,8,0,0">
<TextBox Text="{Binding ServerInput}" MinWidth="220"
PlaceholderText="oppure host:porta manuale"/>
<Button Content="Cerca altri server"
Command="{Binding DiscoverServersCommand}"/>
<Button Content="Reset cert."
Command="{Binding ResetCertificatesCommand}"/>
</StackPanel>
<StackPanel Grid.Row="1" Grid.Column="2" Grid.ColumnSpan="2"
Orientation="Horizontal" Spacing="6" Margin="8,8,0,0"
VerticalAlignment="Center">
<Ellipse Width="10" Height="10" Fill="LimeGreen"
IsVisible="{Binding IsConnected}"/>
<Ellipse Width="10" Height="10" Fill="IndianRed"
IsVisible="{Binding !IsConnected}"/>
<TextBlock Text="{Binding ConnectionStatus}" Foreground="Gray"/>
</StackPanel>
</Grid>
</Border>
@@ -116,6 +150,32 @@
</ListBox>
</TabItem>
<TabItem Header="Indirizzi">
<Grid RowDefinitions="Auto,*" Margin="4">
<Grid Grid.Row="0" ColumnDefinitions="90,60,*,140,60" Margin="12,4">
<TextBlock Grid.Column="0" Text="Tipo" FontWeight="Bold"/>
<TextBlock Grid.Column="1" Text="Indice" FontWeight="Bold"/>
<TextBlock Grid.Column="2" Text="Indirizzo" FontWeight="Bold"/>
<TextBlock Grid.Column="3" Text="Saldo" FontWeight="Bold"/>
<TextBlock Grid.Column="4" Text="Tx" FontWeight="Bold"/>
</Grid>
<ListBox Grid.Row="1" ItemsSource="{Binding Addresses}">
<ListBox.ItemTemplate>
<DataTemplate x:DataType="vm:AddressRow">
<Grid ColumnDefinitions="90,60,*,140,60">
<TextBlock Grid.Column="0" Text="{Binding Tipo}" Foreground="Gray"/>
<TextBlock Grid.Column="1" Text="{Binding Indice}" Foreground="Gray"/>
<SelectableTextBlock Grid.Column="2" Text="{Binding Indirizzo}"
FontFamily="monospace" FontSize="13"/>
<TextBlock Grid.Column="3" Text="{Binding Saldo}" FontFamily="monospace"/>
<TextBlock Grid.Column="4" Text="{Binding NumTx}" Foreground="Gray"/>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</TabItem>
<TabItem Header="Invia">
<StackPanel Spacing="10" Margin="8" MaxWidth="640" HorizontalAlignment="Left">
<TextBox PlaceholderText="Indirizzo destinatario" Text="{Binding SendTo}"
@@ -144,7 +204,7 @@
</Grid>
<!-- Barra di stato -->
<Border Grid.Row="1" Background="{DynamicResource SystemControlBackgroundChromeMediumBrush}"
<Border Grid.Row="2" Background="{DynamicResource SystemControlBackgroundChromeMediumBrush}"
Padding="10,6">
<TextBlock Text="{Binding StatusMessage}" FontSize="12" TextWrapping="Wrap"/>
</Border>
src/App/Views/MainWindow.axaml.cs
+35 -11
View File
@@ -1,11 +1,35 @@
using Avalonia.Controls;
namespace PalladiumWallet.App.Views;
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
}
using System.Linq;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Platform.Storage;
using PalladiumWallet.App.ViewModels;
namespace PalladiumWallet.App.Views;
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
/// <summary>File → Apri wallet da file (il picker richiede il TopLevel, da qui).</summary>
private async void OnOpenWalletFileClick(object? sender, RoutedEventArgs e)
{
if (DataContext is not MainWindowViewModel vm)
return;
var files = await StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
{
Title = "Apri file wallet",
AllowMultiple = false,
FileTypeFilter =
[
new FilePickerFileType("Wallet Palladium") { Patterns = ["*.wallet.json", "*.json"] },
],
});
if (files.FirstOrDefault()?.TryGetLocalPath() is { } path)
vm.OpenFromPath(path);
}
}