// Copyright (c) 2014-2015, The Monero 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:
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// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
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// 2. 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.
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// 3. Neither the name of the copyright holder 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
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#pragma once

#include <boost/archive/binary_oarchive.hpp>
#include <boost/iostreams/stream_buffer.hpp>
#include <boost/iostreams/stream.hpp>
#include <boost/iostreams/device/back_inserter.hpp>
#include "cryptonote_core/cryptonote_basic.h"
#include "cryptonote_core/blockchain_storage.h"
#include "cryptonote_core/blockchain.h"
// TODO:
#include "blockchain_db/blockchain_db.h"
#include "blockchain_db/lmdb/db_lmdb.h"

using namespace cryptonote;

class BlockchainExport
{
public:
  bool store_blockchain_raw(cryptonote::blockchain_storage* cs, cryptonote::tx_memory_pool* txp, 
      boost::filesystem::path& output_dir, uint64_t use_block_height=0);
  //
  // BlockchainDB:
  // bool store_blockchain_raw(cryptonote::BlockchainDB* cs, boost::filesystem::path& output_dir, uint64_t use_block_height=0);

protected:
  // blockchain_storage:
  blockchain_storage* m_blockchain_storage;
  //
  // BlockchainDB:
  // BlockchainDB* m_blockchain_storage;
  tx_memory_pool* m_tx_pool;
  typedef std::vector<char> buffer_type;
  std::ofstream * m_raw_data_file;
  boost::archive::binary_oarchive * m_raw_archive;
  buffer_type m_buffer;
  boost::iostreams::stream<boost::iostreams::back_insert_device<buffer_type>>* m_output_stream;

  // open export file for write
  bool open(const boost::filesystem::path& dir_path);
  bool close();
  void write_block(block& block);
  void serialize_block_to_text_buffer(const block& block);
  void buffer_serialize_tx(const transaction& tx);
  void buffer_write_num_txs(const std::list<transaction> txs);
  void flush_chunk();
};