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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_NEARBY_SHARING_INSTANTMESSAGING_TOKEN_FETCHER_H_
#define CHROME_BROWSER_NEARBY_SHARING_INSTANTMESSAGING_TOKEN_FETCHER_H_
#include <memory>
#include <string>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "components/signin/public/identity_manager/access_token_info.h"
#include "components/signin/public/identity_manager/identity_manager.h"
#include "google_apis/gaia/google_service_auth_error.h"
// TokenFetcher is used for fetching oauth tokens for interacting with
// InstantMessaging servers to send and receive messages.
class TokenFetcher {
public:
explicit TokenFetcher(signin::IdentityManager* identity_manager);
virtual ~TokenFetcher();
// Fetches oauth access token for tachyon scope and passes the token in
// |callback|.
virtual void GetAccessToken(
base::OnceCallback<void(const std::string& token)> callback);
private:
void OnOAuthTokenFetched(
base::OnceCallback<void(const std::string& token)> callback,
GoogleServiceAuthError error,
signin::AccessTokenInfo access_token_info);
raw_ptr<signin::IdentityManager, LeakedDanglingUntriaged> identity_manager_;
std::unique_ptr<signin::AccessTokenFetcher> token_fetcher_;
base::WeakPtrFactory<TokenFetcher> weak_ptr_factory_{this};
};
#endif // CHROME_BROWSER_NEARBY_SHARING_INSTANTMESSAGING_TOKEN_FETCHER_H_
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