Merge nucleic/warm-north-vole-pf37 into dev

2026-08-04 03:10:06 -07:00
parent f5ee895d3f
commit 817eeff081
6 changed files with 473 additions and 16 deletions
@@ -0,0 +1,92 @@
+using NucleicApp.Services;
+using NucleicProtocol.Interop;
+
+namespace NucleicApp.ViewModels;
+
+public enum ShellSection
+{
+    Home,
+    Sessions,
+    Approvals,
+    Projects,
+    Settings,
+}
+
+/// Navigation state for the WinUI split shell. The future XAML layer binds to this class and
+/// swaps views; session activation remains an ordinary protocol subscription intent.
+public sealed class ShellViewModel : ViewModelBase, IDisposable
+{
+    private readonly RendererStore store;
+    private readonly HostConnection connection;
+    private ShellSection section = ShellSection.Home;
+    private SessionDetailViewModel? selectedSession;
+    private HostConnectionState connectionState;
+    private bool disposed;
+
+    public ShellViewModel(RendererStore store, HostConnection connection)
+    {
+        this.store = store;
+        this.connection = connection;
+        connectionState = connection.State;
+        store.PropertyChanged += StoreChanged;
+        connection.StateChanged += ConnectionChanged;
+        Home = new HomeViewModel(store);
+    }
+
+    public HomeViewModel Home { get; }
+    public ShellSection Section { get => section; private set => Set(ref section, value); }
+    public SessionDetailViewModel? SelectedSession
+    {
+        get => selectedSession;
+        private set => Set(ref selectedSession, value);
+    }
+    public HostConnectionState ConnectionState
+    {
+        get => connectionState;
+        private set => Set(ref connectionState, value);
+    }
+    public int PendingApprovalCount => store.PendingApprovals.Count;
+
+    public void Navigate(ShellSection destination)
+    {
+        ObjectDisposedException.ThrowIf(disposed, this);
+        if (destination != ShellSection.Sessions) CloseSession();
+        Section = destination;
+    }
+
+    public ProtocolResult OpenSession(string sessionId, ulong? sinceSequence = null)
+    {
+        ObjectDisposedException.ThrowIf(disposed, this);
+        if (SelectedSession?.SessionId != sessionId)
+        {
+            SelectedSession?.Dispose();
+            SelectedSession = new SessionDetailViewModel(sessionId, store, connection);
+        }
+        Section = ShellSection.Sessions;
+        return SelectedSession.Activate(sinceSequence);
+    }
+
+    public void CloseSession()
+    {
+        SelectedSession?.Dispose();
+        SelectedSession = null;
+    }
+
+    private void StoreChanged(object? sender, System.ComponentModel.PropertyChangedEventArgs args)
+    {
+        if (args.PropertyName == nameof(RendererStore.PendingApprovals))
+            Raise(nameof(PendingApprovalCount));
+    }
+
+    private void ConnectionChanged(HostConnectionState state) => ConnectionState = state;
+
+    public void Dispose()
+    {
+        if (disposed) return;
+        disposed = true;
+        CloseSession();
+        Home.Dispose();
+        store.PropertyChanged -= StoreChanged;
+        connection.StateChanged -= ConnectionChanged;
+    }
+}