////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Jan Steemann
////////////////////////////////////////////////////////////////////////////////

#ifndef ARANGODB_BASICS_VELOCY_PACK_DUMPER_H
#define ARANGODB_BASICS_VELOCY_PACK_DUMPER_H 1

#include "Basics/Common.h"
#include "Basics/StringBuffer.h"
#include "Basics/debugging.h"
#include "Logger/Logger.h"

#include <velocypack/Exception.h>
#include <velocypack/Slice.h>

namespace arangodb {
namespace velocypack {
struct Options;
}

namespace basics {

class VelocyPackDumper {
 public:
  VelocyPackDumper(VelocyPackDumper const&) = delete;
  VelocyPackDumper& operator=(VelocyPackDumper const&) = delete;

 public:
  explicit VelocyPackDumper(StringBuffer* buffer,
                            velocypack::Options const* options = &velocypack::Options::Defaults)
      : options(options), _buffer(buffer) {
    TRI_ASSERT(buffer != nullptr);
    TRI_ASSERT(options != nullptr);
  }

  ~VelocyPackDumper() = default;

  void dumpValue(velocypack::Slice const* slice, velocypack::Slice const* = nullptr);

  inline void dumpValue(velocypack::Slice const& slice,
                        velocypack::Slice const* base = nullptr) {
    dumpValue(&slice, base);
  }

 private:
  void appendUnicodeCharacter(uint16_t);

  void appendUInt(uint64_t);

  void appendDouble(double);

  void appendString(char const* src, velocypack::ValueLength length);

  void handleUnsupportedType(velocypack::Slice const* slice);

  void dumpInteger(velocypack::Slice const*);

 public:
  velocypack::Options const* options;

 private:
  StringBuffer* _buffer;
};

}  // namespace basics
}  // namespace arangodb

#endif