davide
9b00002e39
Send already refused to enable Confirm for watch-only accounts (Signed false), but the App had no way to get the resulting PSBT out to sign elsewhere — only the CLI printed it. Adds a base64 PSBT box + copy button in the Send summary card, and a visible warning banner explaining the wallet cannot sign, on both desktop and mobile layouts.
125 lines
3.9 KiB
C#
125 lines
3.9 KiB
C#
using System;
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using System.Threading.Tasks;
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using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using NBitcoin;
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using PalladiumWallet.App.Localization;
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using PalladiumWallet.App.Services;
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using PalladiumWallet.Core.Chain;
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using PalladiumWallet.Core.Net;
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using PalladiumWallet.Core.Wallet;
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namespace PalladiumWallet.App.ViewModels;
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public partial class MainWindowViewModel
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{
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[ObservableProperty]
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private string sendTo = "";
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[ObservableProperty]
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private string sendAmount = "";
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[ObservableProperty]
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private string sendFeeRate = "1";
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[ObservableProperty]
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private bool sendAll;
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[ObservableProperty]
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private string sendPreview = "";
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[ObservableProperty]
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private bool hasPendingSend;
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[ObservableProperty]
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private string pendingPsbtBase64 = "";
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/// <summary>True when the open account cannot sign — Send only prepares an unsigned PSBT to export.</summary>
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public bool IsWatchOnlyAccount => _account?.IsWatchOnly ?? false;
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public void NotifyPsbtCopied() => StatusMessage = Loc.Tr("psbt.copied");
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[RelayCommand]
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private async Task ScanQr()
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{
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if (PlatformServices.ScanQrAsync is not { } scan) return;
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var raw = await scan();
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if (string.IsNullOrWhiteSpace(raw)) return;
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// Handle URIs like "palladium:ADDRESS?amount=X" — extract address only
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var address = raw.Contains(':') ? raw.Split(':')[1] : raw;
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if (address.Contains('?')) address = address.Split('?')[0];
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SendTo = address.Trim();
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}
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[RelayCommand]
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private async Task PrepareSend()
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{
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if (_account is null || _doc?.Cache is null)
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{
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SendPreview = Loc.Tr("msg.send.sync.first");
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return;
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}
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try
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{
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if (_lastTransactions is null)
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{
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SendPreview = Loc.Tr("msg.send.connect.first");
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return;
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}
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var destination = BitcoinAddress.Create(SendTo.Trim(), PalladiumNetworks.For(Net));
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long amount = 0;
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if (!SendAll && !CoinAmount.TryParseIn(SendAmount, _config.Unit, out amount))
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{
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SendPreview = Loc.Tr("msg.amount.invalid");
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return;
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}
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if (!decimal.TryParse(SendFeeRate, out var feeRate) || feeRate <= 0)
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{
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SendPreview = Loc.Tr("msg.feerate.invalid");
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return;
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}
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_pendingSend = new TransactionFactory(_account).Build(
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_doc.Cache.Utxos, _lastTransactions, destination, amount, feeRate,
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_doc.Cache.NextChangeIndex, _doc.Cache.TipHeight, SendAll);
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SendPreview = $"txid {_pendingSend.Txid[..16]}… · " +
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$"fee {Fmt(_pendingSend.Fee.Satoshi)} " +
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$"({_pendingSend.Transaction.GetVirtualSize()} vB)" +
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(_pendingSend.Signed ? "" : Loc.Tr("msg.unsigned.watchonly"));
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HasPendingSend = _pendingSend.Signed;
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PendingPsbtBase64 = _pendingSend.Signed ? "" : _pendingSend.Psbt.ToBase64();
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}
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catch (Exception ex)
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{
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_pendingSend = null;
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HasPendingSend = false;
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PendingPsbtBase64 = "";
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SendPreview = $"{Loc.Tr("msg.error")}: {DescribeError(ex)}";
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}
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await Task.CompletedTask;
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}
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[RelayCommand]
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private async Task ConfirmSend()
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{
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if (_pendingSend is null || _client is null)
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return;
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try
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{
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var txid = await _client.BroadcastAsync(_pendingSend.ToHex());
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SendPreview = $"{Loc.Tr("msg.broadcasted")}: {txid}";
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SendTo = SendAmount = "";
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_pendingSend = null;
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HasPendingSend = false;
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PendingPsbtBase64 = "";
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await ConnectAndSync();
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}
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catch (Exception ex)
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{
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SendPreview = $"{Loc.Tr("msg.broadcast.error")}: {DescribeError(ex)}";
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}
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}
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}
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