// Copyright 2024 Google LLC
//
// 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.
//
////////////////////////////////////////////////////////////////////////////////

#ifndef TINK_KEYDERIVATION_INTERNAL_CONFIG_PRF_FOR_DERIVER_H_
#define TINK_KEYDERIVATION_INTERNAL_CONFIG_PRF_FOR_DERIVER_H_

#include "absl/log/absl_check.h"
#include "absl/memory/memory.h"
#include "tink/configuration.h"
#include "tink/internal/configuration_impl.h"
#include "tink/prf/hkdf_prf_key_manager.h"

namespace crypto {
namespace tink {
namespace internal {

// Configuration used to generate unwrapped PRF primitives in
// PrfBasedDeriver::New().
inline const Configuration& ConfigPrfForDeriver() {
  static const Configuration* instance = [] {
    static Configuration* config = new Configuration();

    ABSL_CHECK_OK(ConfigurationImpl::AddKeyTypeManager(
        absl::make_unique<HkdfPrfKeyManager>(), *config));

    return config;
  }();
  return *instance;
}

}  // namespace internal
}  // namespace tink
}  // namespace crypto

#endif  // TINK_KEYDERIVATION_INTERNAL_CONFIG_PRF_FOR_DERIVER_H_
