fix: manually attached files should take precedence over suggested fi…

…les (#234291)

src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingActions.ts

@@ -22,7 +22,7 @@ import { GroupsOrder, IEditorGroupsService } from '../../../../services/editor/c
 import { IEditorService } from '../../../../services/editor/common/editorService.js';
 import { ChatAgentLocation } from '../../common/chatAgents.js';
 import { ChatContextKeys } from '../../common/chatContextKeys.js';
-import { applyingChatEditsFailedContextKey, CHAT_EDITING_MULTI_DIFF_SOURCE_RESOLVER_SCHEME, chatEditingResourceContextKey, chatEditingWidgetFileStateContextKey, decidedChatEditingResourceContextKey, hasAppliedChatEditsContextKey, hasUndecidedChatEditingResourceContextKey, IChatEditingService, IChatEditingSession, WorkingSetEntryState } from '../../common/chatEditingService.js';
+import { applyingChatEditsFailedContextKey, CHAT_EDITING_MULTI_DIFF_SOURCE_RESOLVER_SCHEME, chatEditingResourceContextKey, chatEditingWidgetFileStateContextKey, decidedChatEditingResourceContextKey, hasAppliedChatEditsContextKey, hasUndecidedChatEditingResourceContextKey, IChatEditingService, IChatEditingSession, WorkingSetEntryRemovalReason, WorkingSetEntryState } from '../../common/chatEditingService.js';
 import { IChatService } from '../../common/chatService.js';
 import { isRequestVM, isResponseVM } from '../../common/chatViewModel.js';
 import { CHAT_CATEGORY } from '../actions/chatActions.js';
@@ -96,7 +96,7 @@ registerAction2(class RemoveFileFromWorkingSet extends WorkingSetAction {
 
 	async runWorkingSetAction(accessor: ServicesAccessor, currentEditingSession: IChatEditingSession, chatWidget: IChatWidget, ...uris: URI[]): Promise<void> {
 		// Remove from working set
-		currentEditingSession.remove(...uris);
+		currentEditingSession.remove(WorkingSetEntryRemovalReason.User, ...uris);
 
 		// Remove from chat input part
 		const resourceSet = new ResourceSet(uris);

src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingSession.ts

@@ -30,7 +30,7 @@ import { IEditorService } from '../../../../services/editor/common/editorService
 import { MultiDiffEditor } from '../../../multiDiffEditor/browser/multiDiffEditor.js';
 import { MultiDiffEditorInput } from '../../../multiDiffEditor/browser/multiDiffEditorInput.js';
 import { ChatAgentLocation, IChatAgentService } from '../../common/chatAgents.js';
-import { ChatEditingSessionChangeType, ChatEditingSessionState, ChatEditKind, IChatEditingSession, WorkingSetDisplayMetadata, WorkingSetEntryState } from '../../common/chatEditingService.js';
+import { ChatEditingSessionChangeType, ChatEditingSessionState, ChatEditKind, IChatEditingSession, WorkingSetDisplayMetadata, WorkingSetEntryRemovalReason, WorkingSetEntryState } from '../../common/chatEditingService.js';
 import { IChatResponseModel } from '../../common/chatModel.js';
 import { IChatWidgetService } from '../chat.js';
 import { ChatEditingMultiDiffSourceResolver } from './chatEditingService.js';
@@ -328,7 +328,7 @@ export class ChatEditingSession extends Disposable implements IChatEditingSessio
 		this._entriesObs.set(entriesArr, undefined);
 	}
 
-	remove(...uris: URI[]): void {
+	remove(reason: WorkingSetEntryRemovalReason, ...uris: URI[]): void {
 		this._assertNotDisposed();
 
 		let didRemoveUris = false;
@@ -338,7 +338,7 @@ export class ChatEditingSession extends Disposable implements IChatEditingSessio
 				continue;
 			}
 			didRemoveUris = this._workingSet.delete(uri) || didRemoveUris;
-			if (state.state === WorkingSetEntryState.Transient || state.state === WorkingSetEntryState.Suggested) {
+			if (reason === WorkingSetEntryRemovalReason.User && (state.state === WorkingSetEntryState.Transient || state.state === WorkingSetEntryState.Suggested)) {
 				this._removedTransientEntries.add(uri);
 			}
 		}

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

@@ -1085,22 +1085,36 @@ export class ChatInputPart extends Disposable implements IHistoryNavigationWidge
 			// The user tried to attach too many files, we have to drop anything after the limit
 			const entriesToPreserve: IChatCollapsibleListItem[] = [];
 			const newEntries: IChatCollapsibleListItem[] = [];
+			const suggestedFiles: IChatCollapsibleListItem[] = [];
 			for (let i = 0; i < entries.length; i += 1) {
 				const entry = entries[i];
-				// If this entry was here earlier and is still here, we should prioritize preserving it
-				// so that nothing existing gets evicted
-				const currentEntryUri = entry.kind === 'reference' && URI.isUri(entry.reference) ? entry.reference : undefined;
-				if (this._combinedChatEditWorkingSetEntries.find((e) => e.toString() === currentEntryUri?.toString()) && remainingFileEntriesBudget > 0) {
-					entriesToPreserve.push(entry);
-					remainingFileEntriesBudget -= 1;
+				if (entry.kind !== 'reference' || !URI.isUri(entry.reference)) {
+					continue;
+				}
+				const currentEntryUri = entry.reference;
+				if (entry.state === WorkingSetEntryState.Suggested) {
+					// Keep track of suggested files for now, they should not take precedence over newly added files
+					suggestedFiles.push(entry);
+				} else if (this._combinedChatEditWorkingSetEntries.find((e) => e.toString() === currentEntryUri?.toString())) {
+					// If this entry was here earlier and is still here, we should prioritize preserving it
+					// so that nothing existing gets evicted
+					if (remainingFileEntriesBudget > 0) {
+						entriesToPreserve.push(entry);
+						remainingFileEntriesBudget -= 1;
+					}
 				} else {
 					newEntries.push(entry);
 				}
 			}
 
-			const newEntriesThatFit = newEntries.slice(0, remainingFileEntriesBudget);
-			entries = [...entriesToPreserve, ...newEntriesThatFit];
+			const newEntriesThatFit = remainingFileEntriesBudget > 0 ? newEntries.slice(0, remainingFileEntriesBudget) : [];
 			remainingFileEntriesBudget -= newEntriesThatFit.length;
+			const suggestedFilesThatFit = remainingFileEntriesBudget > 0 ? suggestedFiles.slice(0, remainingFileEntriesBudget) : [];
+			// Intentional: to make bad suggestions less annoying,
+			// here we don't count the suggested files against the budget,
+			// so that the Add Files button remains enabled and the user can easily
+			// override the suggestions with their own manual file selections
+			entries = [...entriesToPreserve, ...newEntriesThatFit, ...suggestedFilesThatFit];
 		}
 		if (entries.length > 1) {
 			overviewText.textContent += ' ' + localize('chatEditingSession.manyFiles', '({0} files)', entries.length);
@@ -1184,6 +1198,7 @@ export class ChatInputPart extends Disposable implements IHistoryNavigationWidge
 			supportIcons: true,
 			secondary: true
 		}));
+		// Disable the button if the entries that are not suggested exceed the budget
 		button.enabled = remainingFileEntriesBudget > 0;
 		button.label = localize('chatAddFiles', '{0} Add Files...', '$(add)');
 		button.setTitle(button.enabled ? localize('addFiles.label', 'Add files to your working set') : localize('addFilesDisabled.label', 'You have reached the maximum number of files that can be added to the working set.'));

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

@@ -35,7 +35,7 @@ import { asCssVariable } from '../../../../platform/theme/common/colorUtils.js';
 import { IThemeService } from '../../../../platform/theme/common/themeService.js';
 import { ChatAgentLocation, IChatAgentCommand, IChatAgentData, IChatAgentService, IChatWelcomeMessageContent, isChatWelcomeMessageContent } from '../common/chatAgents.js';
 import { ChatContextKeys } from '../common/chatContextKeys.js';
-import { IChatEditingService, IChatEditingSession, WorkingSetEntryState } from '../common/chatEditingService.js';
+import { IChatEditingService, IChatEditingSession, WorkingSetEntryRemovalReason, WorkingSetEntryState } from '../common/chatEditingService.js';
 import { IChatModel, IChatRequestVariableEntry, IChatResponseModel } from '../common/chatModel.js';
 import { ChatRequestAgentPart, IParsedChatRequest, chatAgentLeader, chatSubcommandLeader, formatChatQuestion } from '../common/chatParserTypes.js';
 import { ChatRequestParser } from '../common/chatRequestParser.js';
@@ -1052,7 +1052,7 @@ export class ChatWidget extends Disposable implements IChatWidget {
 					actualSize: number;
 				};
 				this.telemetryService.publicLog2<ChatEditingWorkingSetEvent, ChatEditingWorkingSetClassification>('chatEditing/workingSetSize', { originalSize: this.inputPart.attemptedWorkingSetEntriesCount, actualSize: uniqueWorkingSetEntries.size });
-				currentEditingSession?.remove(...unconfirmedSuggestions);
+				currentEditingSession?.remove(WorkingSetEntryRemovalReason.Programmatic, ...unconfirmedSuggestions);
 			}
 
 			const result = await this.chatService.sendRequest(this.viewModel.sessionId, input, {

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

@@ -10,7 +10,7 @@ import { ResourceSet } from '../../../../../base/common/map.js';
 import { URI } from '../../../../../base/common/uri.js';
 import { localize } from '../../../../../nls.js';
 import { IWorkbenchContribution } from '../../../../common/contributions.js';
-import { ChatEditingSessionChangeType, IChatEditingService, WorkingSetEntryState } from '../../common/chatEditingService.js';
+import { ChatEditingSessionChangeType, IChatEditingService, WorkingSetEntryRemovalReason, WorkingSetEntryState } from '../../common/chatEditingService.js';
 import { IChatWidgetService } from '../chat.js';
 
 export class ChatRelatedFilesContribution extends Disposable implements IWorkbenchContribution {
@@ -80,7 +80,7 @@ export class ChatRelatedFilesContribution extends Disposable implements IWorkben
 							existingSuggestedEntriesToRemove.push(entry[0]);
 						}
 					}
-					currentEditingSession?.remove(...existingSuggestedEntriesToRemove);
+					currentEditingSession?.remove(WorkingSetEntryRemovalReason.Programmatic, ...existingSuggestedEntriesToRemove);
 
 					// Add the new related file suggestions to the working set
 					for (const file of newSuggestions) {

src/vs/workbench/contrib/chat/common/chatEditingService.ts

@@ -79,7 +79,7 @@ export interface IChatEditingSession {
 	readonly isVisible: boolean;
 	addFileToWorkingSet(uri: URI, description?: string, kind?: WorkingSetEntryState.Transient | WorkingSetEntryState.Suggested): void;
 	show(): Promise<void>;
-	remove(...uris: URI[]): void;
+	remove(reason: WorkingSetEntryRemovalReason, ...uris: URI[]): void;
 	accept(...uris: URI[]): Promise<void>;
 	reject(...uris: URI[]): Promise<void>;
 	/**
@@ -91,6 +91,11 @@ export interface IChatEditingSession {
 	redoInteraction(): Promise<void>;
 }
 
+export const enum WorkingSetEntryRemovalReason {
+	User,
+	Programmatic
+}
+
 export const enum WorkingSetEntryState {
 	Modified,
 	Accepted,