// 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

//

//     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.

#include "absl/base/nullability.h"

#include "absl/log/absl_check.h"

#include "absl/status/status.h"

#include "absl/strings/str_cat.h"

#include "common/value.h"

#include "google/protobuf/arena.h"

#include "google/protobuf/descriptor.h"

#include "google/protobuf/io/zero_copy_stream.h"

#include "google/protobuf/message.h"

namespace cel {

absl::Status UnknownValue::SerializeTo(

    const google::protobuf::DescriptorPool* absl_nonnull descriptor_pool,

    google::protobuf::MessageFactory* absl_nonnull message_factory,

    google::protobuf::io::ZeroCopyOutputStream* absl_nonnull output) const {

  ABSL_DCHECK(descriptor_pool != nullptr);

  ABSL_DCHECK(message_factory != nullptr);

  ABSL_DCHECK(output != nullptr);

  return absl::FailedPreconditionError(

      absl::StrCat(GetTypeName(), " is unserializable"));

}

absl::Status UnknownValue::ConvertToJson(

    const google::protobuf::DescriptorPool* absl_nonnull descriptor_pool,

    google::protobuf::MessageFactory* absl_nonnull message_factory,

    google::protobuf::Message* absl_nonnull json) const {

  ABSL_DCHECK(descriptor_pool != nullptr);

  ABSL_DCHECK(message_factory != nullptr);

  ABSL_DCHECK(json != nullptr);

  ABSL_DCHECK_EQ(json->GetDescriptor()->well_known_type(),

                 google::protobuf::Descriptor::WELLKNOWNTYPE_VALUE);

  return absl::FailedPreconditionError(

      absl::StrCat(GetTypeName(), " is not convertable to JSON"));

}

absl::Status UnknownValue::Equal(

    const Value&, const google::protobuf::DescriptorPool* absl_nonnull descriptor_pool,

    google::protobuf::MessageFactory* absl_nonnull message_factory,

    google::protobuf::Arena* absl_nonnull arena, Value* absl_nonnull result) const {

  ABSL_DCHECK(descriptor_pool != nullptr);

  ABSL_DCHECK(message_factory != nullptr);

  ABSL_DCHECK(arena != nullptr);

  ABSL_DCHECK(result != nullptr);

  *result = FalseValue();

  return absl::OkStatus();

}

}  // namespace cel