Contribute agent setting from vscode, with experiment to control visi…

…bility

src/vs/workbench/contrib/chat/browser/chat.contribution.ts

@@ -13,13 +13,13 @@ import { registerEditorFeature } from '../../../../editor/common/editorFeatures.
 import * as nls from '../../../../nls.js';
 import { AccessibleViewRegistry } from '../../../../platform/accessibility/browser/accessibleViewRegistry.js';
 import { ICommandService } from '../../../../platform/commands/common/commands.js';
-import { Extensions as ConfigurationExtensions, ConfigurationScope, IConfigurationRegistry } from '../../../../platform/configuration/common/configurationRegistry.js';
+import { Extensions as ConfigurationExtensions, ConfigurationScope, IConfigurationNode, IConfigurationRegistry } from '../../../../platform/configuration/common/configurationRegistry.js';
 import { SyncDescriptor } from '../../../../platform/instantiation/common/descriptors.js';
 import { InstantiationType, registerSingleton } from '../../../../platform/instantiation/common/extensions.js';
 import { IInstantiationService } from '../../../../platform/instantiation/common/instantiation.js';
 import { Registry } from '../../../../platform/registry/common/platform.js';
 import { EditorPaneDescriptor, IEditorPaneRegistry } from '../../../browser/editor.js';
-import { WorkbenchPhase, registerWorkbenchContribution2 } from '../../../common/contributions.js';
+import { IWorkbenchContribution, WorkbenchPhase, registerWorkbenchContribution2 } from '../../../common/contributions.js';
 import { EditorExtensions, IEditorFactoryRegistry } from '../../../common/editor.js';
 import { IEditorResolverService, RegisteredEditorPriority } from '../../../services/editor/common/editorResolverService.js';
 import { ChatAgentLocation, ChatAgentNameService, ChatAgentService, IChatAgentNameService, IChatAgentService } from '../common/chatAgents.js';
@@ -84,6 +84,8 @@ import { ChatEditorOverlayController } from './chatEditorOverlay.js';
 import '../common/promptSyntax/languageFeatures/promptLinkProvider.js';
 import { PromptFilesConfig } from '../common/promptSyntax/config.js';
 import { BuiltinToolsContribution } from '../common/tools/tools.js';
+import { IWorkbenchAssignmentService } from '../../../services/assignment/common/assignmentService.js';
+import { IProductService } from '../../../../platform/product/common/productService.js';
 
 // Register configuration
 const configurationRegistry = Registry.as<IConfigurationRegistry>(ConfigurationExtensions.Configuration);
@@ -217,6 +219,59 @@ class ChatResolverContribution extends Disposable {
 	}
 }
 
+class ChatAgentSettingContribution implements IWorkbenchContribution {
+
+	static readonly ID = 'workbench.contrib.chatAgentSetting';
+
+	private registeredNode: IConfigurationNode | undefined;
+
+	constructor(
+		@IWorkbenchAssignmentService experimentService: IWorkbenchAssignmentService,
+		@IProductService private readonly productService: IProductService,
+	) {
+		if (this.productService.quality !== 'stable') {
+			this.registerSetting();
+		}
+
+		experimentService.getTreatment<boolean>('chatAgentEnabled').then(value => {
+			if (value) {
+				this.registerSetting();
+			} else if (value === false) {
+				this.deregisterSetting();
+			}
+		});
+	}
+
+	private registerSetting() {
+		if (this.registeredNode) {
+			return;
+		}
+
+		this.registeredNode = {
+			id: 'chatAgent',
+			title: nls.localize('interactiveSessionConfigurationTitle', "Chat"),
+			type: 'object',
+			properties: {
+				'chat.agent.enabled': {
+					type: 'boolean',
+					description: nls.localize('chat.agent.enabled.description', "Enable agent mode for {0}. When this is enabled, a dropdown appears in the {0} view to toggle agent mode.", 'Copilot Edits'),
+					default: this.productService.quality !== 'stable',
+					tags: ['experimental', 'onExp'],
+				},
+			}
+		};
+		console.log('registerSetting');
+		configurationRegistry.registerConfiguration(this.registeredNode);
+	}
+
+	private deregisterSetting() {
+		if (this.registeredNode) {
+			configurationRegistry.deregisterConfigurations([this.registeredNode]);
+			this.registeredNode = undefined;
+		}
+	}
+}
+
 AccessibleViewRegistry.register(new ChatResponseAccessibleView());
 AccessibleViewRegistry.register(new PanelChatAccessibilityHelp());
 AccessibleViewRegistry.register(new QuickChatAccessibilityHelp());
@@ -334,6 +389,7 @@ registerWorkbenchContribution2(ChatGettingStartedContribution.ID, ChatGettingSta
 registerWorkbenchContribution2(ChatSetupContribution.ID, ChatSetupContribution, WorkbenchPhase.BlockRestore);
 registerWorkbenchContribution2(ChatQuotasStatusBarEntry.ID, ChatQuotasStatusBarEntry, WorkbenchPhase.Eventually);
 registerWorkbenchContribution2(BuiltinToolsContribution.ID, BuiltinToolsContribution, WorkbenchPhase.Eventually);
+registerWorkbenchContribution2(ChatAgentSettingContribution.ID, ChatAgentSettingContribution, WorkbenchPhase.BlockRestore);
 
 registerChatActions();
 registerChatCopyActions();