generator/generator_impl.h

// Copyright 2026 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
//
//    https://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 THIRD_PARTY_CREDENTIO_GENERATOR_GENERATOR_IMPL_H_
#define THIRD_PARTY_CREDENTIO_GENERATOR_GENERATOR_IMPL_H_

#include <memory>
#include <utility>

#include "absl/base/nullability.h"
#include "absl/functional/any_invocable.h"
#include "absl/status/statusor.h"
#include "async/async_context.h"
#include "cbor/options.h"
#include "claim/generator.h"
#include "claim/manifest_box_assembler.h"
#include "generator/generator.h"
#include "generator/manifest_store_transformer.h"
#include "proto/generator.pb.h"

namespace credentio {

class ManifestStoreGeneratorImpl : public ManifestStoreGenerator {
 public:
  ManifestStoreGeneratorImpl(
      std::unique_ptr<ManifestBoxAssembler> absl_nonnull manifest_assembler,
      std::unique_ptr<ManifestEncoder> absl_nonnull manifest_encoder,
      const ManifestStoreTransformer* absl_nullable manifest_store_transformer)
      : manifest_assembler_(std::move(manifest_assembler)),
        manifest_encoder_(std::move(manifest_encoder)),
        manifest_store_transformer_(manifest_store_transformer) {}
  void GenerateManifestStore(
      GenerateManifestStoreRequest request, AsyncContext context,
      absl::AnyInvocable<void(absl::StatusOr<GenerateManifestStoreResponse>) &&>
          cb) const override;
  void GenerateManifestStoreTemplate(
      GenerateManifestStoreRequest request, AsyncContext context,
      absl::AnyInvocable<void(absl::StatusOr<ManifestStoreTemplate>) &&> cb)
      const override;
  void FinalizeManifestStore(
      FinalizeManifestStoreRequest request, AsyncContext context,
      absl::AnyInvocable<void(absl::StatusOr<FinalizeManifestStoreResponse>) &&>
          cb) const override;

 private:
  std::unique_ptr<ManifestBoxAssembler> manifest_assembler_;
  std::unique_ptr<ManifestEncoder> manifest_encoder_;
  cbor::FromProtoOptions proto_to_cbor_options_;
  const ManifestStoreTransformer* absl_nullable manifest_store_transformer_ =
      nullptr;
};

}  // namespace credentio

#endif  // THIRD_PARTY_CREDENTIO_GENERATOR_GENERATOR_IMPL_H_