// 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_VALIDATOR_VALIDATOR_OPTIONS_H_
#define THIRD_PARTY_CREDENTIO_VALIDATOR_VALIDATOR_OPTIONS_H_

#include <cstdint>
#include <memory>
#include <string>

#include "absl/base/nullability.h"
#include "absl/time/clock_interface.h"
#include "constants/spec_version.h"
#include "crypto/crypto_read_handler.h"
#include "validator/validator_metrics.h"

namespace credentio {

// Options controlling validator behavior.
struct ValidatorOptions {
  // REQUIRED. Crypto read handler to use.
  std::unique_ptr<CryptoReadHandler> absl_nonnull crypto_read_handler;

  // Clock to use (e.g., for certificate validity checks).
  absl::Clock* clock = &absl::Clock::GetRealClock();

  // Maximum size of chunks read from input files.
  //
  // If the C2PA metadata (manifest store) is larger than this limit, validation
  // will fail.
  int64_t max_chunk_bytes = 10 * 1024 * 1024;  // 10 MiB

  // Enables the validator to process legacy manifests based on C2PA standards
  // prior to version 2.1 (i.e. those with labels that do not begin with the
  // prefix introduced in v2.1, `urn:c2pa`). This option bypasses the label
  // check and the redaction of custom, deprecated, and gathered assertions;
  // various pre-2.1 features are not supported. This option should only be used
  // for testing.
  // NOTE: This option is for testing only and cannot be used with
  // CreateValidator.
  bool accept_legacy_manifest_for_test = false;

  // Whether to collect metrics.
  ValidatorMetrics* absl_nullable metrics = nullptr;

  // The C2PA specification version the product conforms to.
  SpecVersion spec_version = SpecVersion::kUnspecified;

  // URI reference (including version/timestamp) to the trust list used.
  std::string trust_list_uri;
};

}  // namespace credentio

#endif  // THIRD_PARTY_CREDENTIO_VALIDATOR_VALIDATOR_OPTIONS_H_