/**
 * @module identity/sso-popup-helper
 *
 * DRY client helper for initiating OAuth2 SSO authentication via a popup window
 * and capturing the returned authorization code.
 */
export interface SsoPopupOpts {
    providerId: 'google' | 'github';
    parentTjpAddr?: string;
}
export interface SsoPopupResult {
    success: boolean;
    code?: string;
    stateObj?: any;
    redirectUri?: string;
    message?: string;
}
/**
 * Executes an OAuth2 SSO login/link authorization flow using a popup window.
 *
 * 1. Queries `GET /api/identity/sso/config` for safe public client configs.
 * 2. Constructs the provider authorization URL with encoded state payload.
 * 3. Opens a 600x700 popup window and listens for `sso-oauth-callback` postMessage.
 * 4. Returns `{ success: true, code, stateObj, redirectUri }` upon authorization.
 */
export declare function executeSsoOAuthPopup({ providerId, parentTjpAddr, }: SsoPopupOpts): Promise<SsoPopupResult>;
/**
 * Checks if the current window was opened as an OAuth popup (`window.opener` exists)
 * and has received an authorization code in the URL query string (`?code=...`).
 * If so, posts `sso-oauth-callback` to the parent window and closes itself.
 */
export declare function checkAndNotifyPopupOpener(): boolean;
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