chore: organize solution into module folders (Core/Server/Drivers/Client/Tooling)

Group all 69 projects into category subfolders under src/ and tests/ so the Rider Solution Explorer mirrors the module structure. Folders: Core, Server, Drivers (with a nested Driver CLIs subfolder), Client, Tooling. - Move every project folder on disk with git mv (history preserved as renames). - Recompute relative paths in 57 .csproj files: cross-category ProjectReferences, the lib/ HintPath+None refs in Driver.Historian.Wonderware, and the external mxaccessgw refs in Driver.Galaxy and its test project. - Rebuild ZB.MOM.WW.OtOpcUa.slnx with nested solution folders. - Re-prefix project paths in functional scripts (e2e, compliance, smoke SQL, integration, install). Build green (0 errors); unit tests pass. Docs left for a separate pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-17 01:55:28 -04:00
parent 69f02fed7f
commit a25593a9c6
1044 changed files with 365 additions and 343 deletions
@@ -0,0 +1,111 @@
+using System.Collections.ObjectModel;
+using CommunityToolkit.Mvvm.ComponentModel;
+using ZB.MOM.WW.OtOpcUa.Client.Shared;
+using ZB.MOM.WW.OtOpcUa.Client.UI.Services;
+
+namespace ZB.MOM.WW.OtOpcUa.Client.UI.ViewModels;
+
+/// <summary>
+///     Represents a single node in the OPC UA browse tree with lazy-load support.
+/// </summary>
+public partial class TreeNodeViewModel : ObservableObject
+{
+    private static readonly TreeNodeViewModel PlaceholderSentinel = new();
+    private readonly IUiDispatcher? _dispatcher;
+
+    private readonly IOpcUaClientService? _service;
+    private bool _hasLoadedChildren;
+
+    [ObservableProperty] private bool _isExpanded;
+
+    [ObservableProperty] private bool _isLoading;
+
+    /// <summary>
+    ///     Private constructor for the placeholder sentinel only.
+    /// </summary>
+    private TreeNodeViewModel()
+    {
+        NodeId = string.Empty;
+        DisplayName = "Loading...";
+        NodeClass = string.Empty;
+        HasChildren = false;
+    }
+
+    public TreeNodeViewModel(
+        string nodeId,
+        string displayName,
+        string nodeClass,
+        bool hasChildren,
+        IOpcUaClientService service,
+        IUiDispatcher dispatcher)
+    {
+        NodeId = nodeId;
+        DisplayName = displayName;
+        NodeClass = nodeClass;
+        HasChildren = hasChildren;
+        _service = service;
+        _dispatcher = dispatcher;
+
+        if (hasChildren) Children.Add(PlaceholderSentinel);
+    }
+
+    /// <summary>The string NodeId of this node.</summary>
+    public string NodeId { get; }
+
+    /// <summary>The display name shown in the tree.</summary>
+    public string DisplayName { get; }
+
+    /// <summary>The OPC UA node class (Object, Variable, etc.).</summary>
+    public string NodeClass { get; }
+
+    /// <summary>Whether this node has child references.</summary>
+    public bool HasChildren { get; }
+
+    /// <summary>Child nodes (may contain a placeholder sentinel before first expand).</summary>
+    public ObservableCollection<TreeNodeViewModel> Children { get; } = [];
+
+    /// <summary>
+    ///     Returns whether this node instance is the placeholder sentinel.
+    /// </summary>
+    internal bool IsPlaceholder => ReferenceEquals(this, PlaceholderSentinel);
+
+    partial void OnIsExpandedChanged(bool value)
+    {
+        if (value && !_hasLoadedChildren && HasChildren) _ = LoadChildrenAsync();
+    }
+
+    private async Task LoadChildrenAsync()
+    {
+        if (_service == null || _dispatcher == null) return;
+
+        _hasLoadedChildren = true;
+        IsLoading = true;
+
+        try
+        {
+            var nodeId = Opc.Ua.NodeId.Parse(NodeId);
+            var results = await _service.BrowseAsync(nodeId);
+
+            _dispatcher.Post(() =>
+            {
+                Children.Clear();
+                foreach (var result in results)
+                    Children.Add(new TreeNodeViewModel(
+                        result.NodeId,
+                        result.DisplayName,
+                        result.NodeClass,
+                        result.HasChildren,
+                        _service,
+                        _dispatcher));
+            });
+        }
+        catch
+        {
+            _dispatcher.Post(() => Children.Clear());
+        }
+        finally
+        {
+            _dispatcher.Post(() => IsLoading = false);
+        }
+    }
+}