/*
   Copyright (c) 2011, The Mineserver Project
   All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:
  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
  * Neither the name of the The Mineserver Project nor the
    names of its contributors may be used to endorse or promote products
    derived from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _NBT_H
#define _NBT_H

#include <map>
#include <string>
#include <vector>

#include <stdint.h>
#include <zlib.h>

class NBT_Value
{
public:
  enum eTAG_Type
  {
    TAG_END        = 0,
    TAG_BYTE       = 1,
    TAG_SHORT      = 2,
    TAG_INT        = 3,
    TAG_LONG       = 4,
    TAG_FLOAT      = 5,
    TAG_DOUBLE     = 6,
    TAG_BYTE_ARRAY = 7,
    TAG_STRING     = 8,
    TAG_LIST       = 9,
    TAG_COMPOUND   = 10
  };

  NBT_Value(eTAG_Type type, eTAG_Type listType = TAG_END);
  NBT_Value(int8_t value);
  NBT_Value(int16_t value);
  NBT_Value(int32_t value);
  NBT_Value(int64_t value);
  NBT_Value(float value);
  NBT_Value(double value);

  NBT_Value(uint8_t* buf, int32_t len);
  NBT_Value(std::vector<uint8_t> const& bytes);
  NBT_Value(const std::string& str);

  NBT_Value(eTAG_Type type, uint8_t** buf, int& remaining);

  ~NBT_Value();

  NBT_Value* operator[](const std::string& index);
  NBT_Value* operator[](const char* index);

  void Insert(const std::string& str, NBT_Value* val);

  operator int8_t();
  operator int16_t();
  operator int32_t();
  operator int64_t();
  operator float();
  operator double();

  NBT_Value& operator =(int8_t val);
  NBT_Value& operator =(int16_t val);
  NBT_Value& operator =(int32_t val);
  NBT_Value& operator =(int64_t val);
  NBT_Value& operator =(float val);
  NBT_Value& operator =(double val);

  std::vector<uint8_t> *GetByteArray();
  std::string* GetString();
  eTAG_Type GetListType();
  std::vector<NBT_Value*> *GetList();

  void SetType(eTAG_Type type, eTAG_Type listType = TAG_END);

  eTAG_Type GetType();
  void cleanup();

  static NBT_Value* LoadFromFile(const std::string& filename);
  static NBT_Value* LoadFromMemory(uint8_t* buffer, uint32_t len);
  void SaveToFile(const std::string& filename);
  void SaveToMemory(uint8_t* buffer, uint32_t* len);

  void Write(std::vector<uint8_t> &buffer);

  void Dump(std::string& data, const std::string& name = std::string(""), int tabs = 0);
private:
  eTAG_Type m_type;
  union
  {
    int8_t byteVal;
    int16_t shortVal;
    int32_t intVal;
    int64_t longVal;
    float floatVal;
    double doubleVal;
    std::string* stringVal;
    std::vector<uint8_t> *byteArrayVal;
    struct
    {
      eTAG_Type type;
      std::vector<NBT_Value*> *data;
    } listVal;
    std::map<std::string, NBT_Value*> *compoundVal;
  } m_value;
};

#endif