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/*
 * Copyright (c) 2020 Samsung Electronics Co., Ltd. All rights reserved.
 *
 * 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
 *
 * http://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 KEY_INFO_INTERNAL_H_
#define KEY_INFO_INTERNAL_H_

#include <string>
#include <vector>
#include <memory>

namespace tizen_base {
namespace internal {

class KeyInfo {
 public:
  KeyInfo(int type, std::string key,
          std::vector<unsigned char> value);
  KeyInfo(int type, std::string key,
          std::vector<std::vector<unsigned char>> values);
  explicit KeyInfo(std::vector<unsigned char> encoded_bytes);
  virtual ~KeyInfo() = default;

  KeyInfo(const KeyInfo& key_info);
  KeyInfo& operator = (const KeyInfo& key_info);
  KeyInfo(KeyInfo&& key_info) noexcept;
  KeyInfo& operator = (KeyInfo&& key_info) noexcept;

  bool operator == (const KeyInfo& key_info);

  int GetType() const;
  bool IsArray() const;
  const std::string& GetKey();
  const std::vector<std::unique_ptr<unsigned char[]>>& GetValues();
  const std::vector<std::size_t>& GetValuesSize();
  const std::vector<unsigned int>& GetUValuesSize();
  std::vector<unsigned char> Encode();

  int SetValue(int index, const std::vector<unsigned char>& value);
  int GetSize() const;

 private:
  std::size_t GetEncodedSize();
  int SetValuesSize();
  int SetValue(const std::vector<unsigned char>& value);
  int SetValues(const std::vector<std::vector<unsigned char>>& values);
  int Decode(const std::vector<unsigned char>& bytes);

 private:
  int type_;
  std::string key_;
  std::vector<std::unique_ptr<unsigned char[]>> values_;
  std::vector<std::size_t> values_size_;
  std::vector<unsigned int> uvalues_size_;
};

}  // namespace internal
}  // namespace tizen_base

#endif  // KEY_INFO_INTERNAL_H_