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/*---------------------------------------------------------------------------------------------
languageModels.ts
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { SequencerByKey, timeout } from '../../../../base/common/async.js';
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import { VSBuffer } from '../../../../base/common/buffer.js';
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import { CancellationToken } from '../../../../base/common/cancellation.js';
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import { IStringDictionary } from '../../../../base/common/collections.js';
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import { CancellationError, getErrorMessage, isCancellationError } from '../../../../base/common/errors.js';
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import { Emitter, Event } from '../../../../base/common/event.js';
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import { hash } from '../../../../base/common/hash.js';
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import { Iterable } from '../../../../base/common/iterator.js';
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import { IJSONSchema, TypeFromJsonSchema } from '../../../../base/common/jsonSchema.js';
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import { DisposableStore, IDisposable, toDisposable } from '../../../../base/common/lifecycle.js';
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import { IObservable, observableValue } from '../../../../base/common/observable.js';
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import { equals } from '../../../../base/common/objects.js';
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import Severity from '../../../../base/common/severity.js';
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import { format, isFalsyOrWhitespace } from '../../../../base/common/strings.js';
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import { ThemeIcon } from '../../../../base/common/themables.js';
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import { IAction, SubmenuAction } from '../../../../base/common/actions.js';
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import { isObject, isString } from '../../../../base/common/types.js';
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import { Schemas } from '../../../../base/common/network.js';
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import { URI } from '../../../../base/common/uri.js';
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import { generateUuid } from '../../../../base/common/uuid.js';
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import { localize } from '../../../../nls.js';
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import { ContextKeyExpr, IContextKey, IContextKeyService } from '../../../../platform/contextkey/common/contextkey.js';
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import { ExtensionIdentifier } from '../../../../platform/extensions/common/extensions.js';
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import { createDecorator } from '../../../../platform/instantiation/common/instantiation.js';
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import { ILogService } from '../../../../platform/log/common/log.js';
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import { INotificationService, NeverShowAgainScope } from '../../../../platform/notification/common/notification.js';
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import { IOpenerService } from '../../../../platform/opener/common/opener.js';
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import { IProductService } from '../../../../platform/product/common/productService.js';
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import { asJson, IRequestService } from '../../../../platform/request/common/request.js';
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import { IQuickInputService, IQuickPickItem, QuickInputHideReason } from '../../../../platform/quickinput/common/quickInput.js';
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import { ISecretStorageService } from '../../../../platform/secrets/common/secrets.js';
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import { IStorageService, StorageScope, StorageTarget } from '../../../../platform/storage/common/storage.js';
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import { ITelemetryService } from '../../../../platform/telemetry/common/telemetry.js';
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import { IExtensionService } from '../../../services/extensions/common/extensions.js';
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import { ExtensionsRegistry } from '../../../services/extensions/common/extensionsRegistry.js';
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import { ChatContextKeys } from './actions/chatContextKeys.js';
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import { ChatAgentLocation } from './constants.js';
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import { ILanguageModelsProviderGroup, ILanguageModelsConfigurationService } from './languageModelsConfiguration.js';
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/**
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* Vendor id used for the built-in GitHub Copilot language model provider. Treated as the default
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* vendor across the chat stack (see `ILanguageModelProviderDescriptor.isDefault`).
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*/
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export const COPILOT_VENDOR_ID = 'copilot';
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/** Whether a missing model is conclusively absent from a vendor's live model list. Empty Copilot results remain transient while token-backed discovery completes. */
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export function isLanguageModelVendorAbsenceConclusive(vendor: string, hasLiveModels: boolean, hasResolved: boolean): boolean {
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return hasLiveModels || (hasResolved && vendor !== COPILOT_VENDOR_ID);
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}
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/**
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* Vendor ids of the BYOK language-model providers that ship in-built with the GitHub Copilot Chat
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* extension. Each provider's vendor id is `providerName.toLowerCase()` (see
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* `extensions/copilot/src/extension/byok/vscode-node/*Provider.ts`). This list is intentionally
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* hardcoded: the in-built provider set is stable and known ahead of time, which lets us report these
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* providers by name while bucketing every other (third-party) provider as `3p-extension`.
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*/
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const BUILT_IN_BYOK_VENDOR_IDS = new Set<string>([
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'openai',
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'anthropic',
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'gemini',
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'ollama',
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'openrouter',
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'azure',
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'xai',
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'customoai',
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'customendpoint',
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]);
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/**
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* Bucket reported for any non-Copilot provider that is not an in-built BYOK provider, i.e. a model
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* contributed by a third-party extension. We never report the third-party vendor id directly to avoid
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* logging potentially identifying values.
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*/
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export const THIRD_PARTY_PROVIDER_TELEMETRY_NAME = '3p-extension';
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const BUILT_IN_BYOK_EXTENSION_IDS = [
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'github.copilot-chat',
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'github.copilot',
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];
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/**
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* Normalizes a non-Copilot model vendor into a non-identifying provider name suitable for telemetry:
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* the in-built BYOK vendor id (e.g. `openai`, `ollama`) when contributed by the built-in Copilot
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* extensions, or {@link THIRD_PARTY_PROVIDER_TELEMETRY_NAME} otherwise. Returns `undefined` for the
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* first-party Copilot vendor (or no vendor) so callers skip logging first-party usage.
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*/
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export function getByokProviderTelemetryName(vendor: string | undefined, extension: ExtensionIdentifier | undefined): string | undefined {
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if (!vendor || vendor === COPILOT_VENDOR_ID) {
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return undefined;