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// Copyright (c) 2017-2023, 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:
// 
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
// 
// 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.
// 
// 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
// 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 OR CONTRIBUTORS 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.

#pragma once

#include <string>
#include <boost/thread/mutex.hpp>
#include <boost/thread/recursive_mutex.hpp>
#include "include_base_utils.h"
#include "net/abstract_http_client.h"
#include "rpc/core_rpc_server_commands_defs.h"

namespace tools
{

class NodeRPCProxy
{
public:
  NodeRPCProxy(epee::net_utils::http::abstract_http_client &http_client, boost::recursive_mutex &mutex);

  void invalidate();
  void set_offline(bool offline) { m_offline = offline; }

  boost::optional<std::string> get_rpc_version(uint32_t &rpc_version, std::vector<std::pair<uint8_t, uint64_t>> &daemon_hard_forks, uint64_t &height, uint64_t &target_height);
  boost::optional<std::string> get_height(uint64_t &height);
  void set_height(uint64_t h);
  boost::optional<std::string> get_target_height(uint64_t &height);
  boost::optional<std::string> get_block_weight_limit(uint64_t &block_weight_limit);
  boost::optional<std::string> get_adjusted_time(uint64_t &adjusted_time);
  boost::optional<std::string> get_earliest_height(uint8_t version, uint64_t &earliest_height);
  boost::optional<std::string> get_dynamic_base_fee_estimate(uint64_t grace_blocks, uint64_t &fee);
  boost::optional<std::string> get_dynamic_base_fee_estimate_2021_scaling(uint64_t grace_blocks, std::vector<uint64_t> &fees);
  boost::optional<std::string> get_fee_quantization_mask(uint64_t &fee_quantization_mask);
  boost::optional<std::string> get_transactions(const std::vector<crypto::hash> &txids, const std::function<void(const cryptonote::COMMAND_RPC_GET_TRANSACTIONS::request&, const cryptonote::COMMAND_RPC_GET_TRANSACTIONS::response&, bool)> &f);

private:
  boost::optional<std::string> get_info();

  epee::net_utils::http::abstract_http_client &m_http_client;
  boost::recursive_mutex &m_daemon_rpc_mutex;
  bool m_offline;

  uint64_t m_height;
  uint64_t m_earliest_height[256];
  uint64_t m_dynamic_base_fee_estimate;
  uint64_t m_dynamic_base_fee_estimate_cached_height;
  uint64_t m_dynamic_base_fee_estimate_grace_blocks;
  std::vector<uint64_t> m_dynamic_base_fee_estimate_vector;
  uint64_t m_fee_quantization_mask;
  uint64_t m_adjusted_time;
  uint32_t m_rpc_version;
  uint64_t m_target_height;
  uint64_t m_block_weight_limit;
  time_t m_get_info_time;
  time_t m_height_time;
  time_t m_target_height_time;
  std::vector<std::pair<uint8_t, uint64_t>> m_daemon_hard_forks;
};

}