// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/json/json_string_value_serializer.h"

#include <string_view>

#include "base/json/json_reader.h"
#include "base/json/json_writer.h"

using base::Value;

JSONStringValueSerializer::JSONStringValueSerializer(std::string* json_string)
    : json_string_(json_string), pretty_print_(false) {}

JSONStringValueSerializer::~JSONStringValueSerializer() = default;

bool JSONStringValueSerializer::Serialize(base::ValueView root) {
  return SerializeInternal(root, false);
}

bool JSONStringValueSerializer::SerializeAndOmitBinaryValues(
    base::ValueView root) {
  return SerializeInternal(root, true);
}

bool JSONStringValueSerializer::SerializeInternal(base::ValueView root,
                                                  bool omit_binary_values) {
  if (!json_string_) {
    return false;
  }

  int options = 0;
  if (omit_binary_values) {
    options |= base::JSONWriter::OPTIONS_OMIT_BINARY_VALUES;
  }
  if (pretty_print_) {
    options |= base::JSONWriter::OPTIONS_PRETTY_PRINT;
  }

  return base::JSONWriter::WriteWithOptions(root, options, json_string_);
}

JSONStringValueDeserializer::JSONStringValueDeserializer(
    std::string_view json_string,
    int options)
    : json_string_(json_string), options_(options) {}

JSONStringValueDeserializer::~JSONStringValueDeserializer() = default;

std::unique_ptr<Value> JSONStringValueDeserializer::Deserialize(
    int* error_code,
    std::string* error_str) {
  auto ret =
      base::JSONReader::ReadAndReturnValueWithError(json_string_, options_);
  if (ret.has_value()) {
    return base::Value::ToUniquePtrValue(std::move(*ret));
  }

  if (error_code) {
    *error_code = base::ValueDeserializer::kErrorCodeInvalidFormat;
  }
  if (error_str) {
    *error_str = std::move(ret.error().message);
  }
  return nullptr;
}