// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========

export interface GoogleConfig {
  clientId: string
  // Optional: omit in browser PKCE flows. The PKCE verifier authenticates
  // the client at the token endpoint, so no secret is sent.
  clientSecret?: string
  refreshToken: string
  // Optional: caller-supplied refresh strategy. When provided, TokenManager
  // delegates token refresh to this callback instead of calling Google's
  // token endpoint directly. Useful when the client_secret must stay on a
  // backend (e.g. a Vercel function proxy).
  refreshFn?: (refreshToken: string) => Promise<{ accessToken: string; expiresIn: number }>
}
