do not give module command if module is not enabled

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.PowerToys/Helpers/ModuleEnablementService.cs

@@ -0,0 +1,108 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text.Json;
+using static Common.UI.SettingsDeepLink;
+
+namespace PowerToysExtension.Helpers;
+
+/// <summary>
+/// Reads PowerToys module enablement flags from the global settings.json.
+/// </summary>
+internal static class ModuleEnablementService
+{
+    internal static string SettingsFilePath { get; } = Path.Combine(
+        Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
+        "Microsoft",
+        "PowerToys",
+        "settings.json");
+
+    internal static bool IsModuleEnabled(SettingsWindow module)
+    {
+        var key = GetEnabledKey(module);
+        return string.IsNullOrEmpty(key) || IsKeyEnabled(key);
+    }
+
+    internal static bool IsKeyEnabled(string enabledKey)
+    {
+        if (string.IsNullOrWhiteSpace(enabledKey))
+        {
+            return true;
+        }
+
+        try
+        {
+            var enabled = ReadEnabledFlags();
+            return enabled is null || !enabled.TryGetValue(enabledKey, out var value) || value;
+        }
+        catch
+        {
+            return true;
+        }
+    }
+
+    private static Dictionary<string, bool>? ReadEnabledFlags()
+    {
+        if (!File.Exists(SettingsFilePath))
+        {
+            return null;
+        }
+
+        var json = File.ReadAllText(SettingsFilePath).Trim('\0');
+        using var doc = JsonDocument.Parse(json);
+
+        if (!doc.RootElement.TryGetProperty("enabled", out var enabledRoot) ||
+            enabledRoot.ValueKind != JsonValueKind.Object)
+        {
+            return null;
+        }
+
+        var result = new Dictionary<string, bool>(StringComparer.OrdinalIgnoreCase);
+        foreach (var prop in enabledRoot.EnumerateObject())
+        {
+            if (prop.Value.ValueKind is JsonValueKind.True or JsonValueKind.False)
+            {
+                result[prop.Name] = prop.Value.GetBoolean();
+            }
+        }
+
+        return result;
+    }
+
+    private static string? GetEnabledKey(SettingsWindow module) => module switch
+    {
+        SettingsWindow.Awake => "Awake",
+        SettingsWindow.AdvancedPaste => "AdvancedPaste",
+        SettingsWindow.AlwaysOnTop => "AlwaysOnTop",
+        SettingsWindow.ColorPicker => "ColorPicker",
+        SettingsWindow.CropAndLock => "CropAndLock",
+        SettingsWindow.EnvironmentVariables => "EnvironmentVariables",
+        SettingsWindow.FancyZones => "FancyZones",
+        SettingsWindow.FileExplorer => "File Explorer Preview",
+        SettingsWindow.FileLocksmith => "FileLocksmith",
+        SettingsWindow.Hosts => "Hosts",
+        SettingsWindow.ImageResizer => "Image Resizer",
+        SettingsWindow.KBM => "Keyboard Manager",
+        SettingsWindow.LightSwitch => "LightSwitch",
+        SettingsWindow.MeasureTool => "Measure Tool",
+        SettingsWindow.MouseWithoutBorders => "MouseWithoutBorders",
+        SettingsWindow.NewPlus => "NewPlus",
+        SettingsWindow.Peek => "Peek",
+        SettingsWindow.PowerAccent => "QuickAccent",
+        SettingsWindow.PowerLauncher => "PowerToys Run",
+        SettingsWindow.Run => "PowerToys Run",
+        SettingsWindow.PowerRename => "PowerRename",
+        SettingsWindow.PowerOCR => "TextExtractor",
+        SettingsWindow.RegistryPreview => "RegistryPreview",
+        SettingsWindow.ShortcutGuide => "Shortcut Guide",
+        SettingsWindow.Workspaces => "Workspaces",
+        SettingsWindow.ZoomIt => "ZoomIt",
+        SettingsWindow.CmdNotFound => "CmdNotFound",
+        SettingsWindow.CmdPal => "CmdPal",
+        _ => null,
+    };
+}