#ifndef BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66

#define BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66

#if defined(_MSC_VER) ||                                            \

    (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \

     (__GNUC__ >= 4))  // GCC supports "pragma once" correctly since 3.4

#pragma once

#endif

#include <string>

#include <vector>

#include "yaml-cpp/dll.h"

namespace YAML {

YAML_CPP_API std::string EncodeBase64(const unsigned char *data,

                                      std::size_t size);

YAML_CPP_API std::vector<unsigned char> DecodeBase64(const std::string &input);

class YAML_CPP_API Binary {

 public:

  Binary(const unsigned char *data_, std::size_t size_)

      : m_data{}, m_unownedData(data_), m_unownedSize(size_) {}

  Binary() : Binary(nullptr, 0) {}

  Binary(const Binary &) = default;

  Binary(Binary &&) = default;

  Binary &operator=(const Binary &) = default;

  Binary &operator=(Binary &&) = default;

  bool owned() const { return !m_unownedData; }

  std::size_t size() const { return owned() ? m_data.size() : m_unownedSize; }

  const unsigned char *data() const {

    return owned() ? &m_data[0] : m_unownedData;

  }

  void swap(std::vector<unsigned char> &rhs) {

    if (m_unownedData) {

      m_data.swap(rhs);

      rhs.clear();

      rhs.resize(m_unownedSize);

      std::copy(m_unownedData, m_unownedData + m_unownedSize, rhs.begin());

      m_unownedData = nullptr;

      m_unownedSize = 0;

    } else {

      m_data.swap(rhs);

    }

  }

  bool operator==(const Binary &rhs) const {

    const std::size_t s = size();

    if (s != rhs.size())

      return false;

    const unsigned char *d1 = data();

    const unsigned char *d2 = rhs.data();

    for (std::size_t i = 0; i < s; i++) {

      if (*d1++ != *d2++)

        return false;

    }

    return true;

  }

  bool operator!=(const Binary &rhs) const { return !(*this == rhs); }

 private:

  std::vector<unsigned char> m_data;

  const unsigned char *m_unownedData;

  std::size_t m_unownedSize;

};

}  // namespace YAML

#endif  // BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66