/**
 * Headless OAuth login engine — drives a subscription sign-in (ChatGPT /
 * Claude / Copilot) to completion and returns a persistence-agnostic
 * {@link OAuthLoginOutcome}. Shared by the CLI auth-menu (terminal IO) and
 * both WebUI servers (WebSocket IO). Neither opens a browser nor writes config
 * — that is the caller's job.
 */
import type { BeginOAuthDeps, OAuthKind, OAuthSession } from './types.js';
/**
 * Codex / "Sign in with ChatGPT" wire protocol — the single definition, shared
 * by the CLI terminal flow (`cli/src/auth-menu/openai-codex-oauth.ts`), the
 * headless flow (`./chatgpt.ts`), and the runtime provider's refresh path
 * (`../openai-codex.ts`). All three used to carry their own copy.
 */
export { buildCodexAuthorizeUrl, CODEX_AUTH_BASE_URL, CODEX_AUTHORIZE_URL, CODEX_BASE_URL, CODEX_CLIENT_ID, CODEX_FALLBACK_REDIRECT_PORT, CODEX_ORIGINATOR, CODEX_PROVIDER_ID, CODEX_REDIRECT_HOST, CODEX_REDIRECT_PATH, CODEX_REDIRECT_PORT, CODEX_SCOPE, CODEX_TOKEN_URL, type CodexTokens, codexRedirectUri, exchangeCodexAuthorizationCode, readCodexTokenResponse, refreshCodexTokens, } from './codex-protocol.js';
export { CODEX_CATALOG_FAMILIES, FALLBACK_CODEX_MODELS, fallbackCodexModelIds, fallbackCodexProviderModels, fetchCodexModels, filterCurrentCodexModelIds, isCodexCatalogModel, resolveCodexModels, } from './codex-models.js';
export { extractAccountId } from '../openai-codex-account.js';
export { buildClaudeAuthorizeUrl, CLAUDE_PROVIDER_ID } from './claude.js';
export { COPILOT_PROVIDER_ID, isUsableCopilotChatModel } from './copilot.js';
export { base64url, callbackHtml, createState, generatePkce, type LoopbackOptions, type LoopbackServer, parseAuthorizationInput, type Pkce, startLoopbackServer, } from './shared.js';
export type { BeginOAuthDeps, OAuthKind, OAuthLoginOutcome, OAuthPhase, OAuthSession, } from './types.js';
/** Canonical provider id each login kind stores its credential under. */
export declare const OAUTH_PROVIDER_IDS: Record<OAuthKind, string>;
/**
 * Begin a subscription OAuth login. Returns a {@link OAuthSession} that is
 * already listening (loopback flows) or carries the device code (copilot),
 * so the caller can surface the authorize URL / user code immediately, then
 * `await session.waitForCompletion()`.
 */
export declare function beginOAuthLogin(kind: OAuthKind, deps?: BeginOAuthDeps, signal?: AbortSignal): Promise<OAuthSession>;
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