/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

#pragma once

#include <folly/Optional.h>
#include <folly/dynamic.h>
#include <fabric/graphics/Color.h>
#include <fabric/graphics/Geometry.h>
#include <fabric/graphics/conversions.h>

namespace facebook {
namespace react {

inline void fromDynamic(const folly::dynamic &value, bool &result) { result = value.getBool(); }
inline void fromDynamic(const folly::dynamic &value, int &result) { result = value.getInt(); }
inline void fromDynamic(const folly::dynamic &value, std::string &result) { result = value.getString(); }

template <typename T>
inline T convertRawProp(const RawProps &rawProps, const std::string &name, const T &defaultValue) {
  auto &&iterator = rawProps.find(name);
  if (iterator == rawProps.end()) {
    return defaultValue;
  }

  auto &&value = iterator->second;
  T result;
  fromDynamic(value, result);
  return result;
}

template <typename T>
inline static folly::Optional<T> convertRawProp(const RawProps &rawProps, const std::string &name, const folly::Optional<T> &defaultValue) {
  auto &&iterator = rawProps.find(name);
  if (iterator == rawProps.end()) {
    return defaultValue;
  }

  auto &&value = iterator->second;
  T result;

  // Special case for optionals: `null` always means `no value`.
  if (value.isNull()) {
    return {};
  }

  fromDynamic(value, result);
  return result;
}

} // namespace react
} // namespace facebook