// Copyright (c) 2014-2017, 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.

#include "cryptonote_config.h"
#include "version.h"
#include "daemon/command_server.h"

#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "daemon"

namespace daemonize {

namespace p = std::placeholders;

t_command_server::t_command_server(
    uint32_t ip
  , uint16_t port
  , const boost::optional<tools::login>& login
  , bool is_rpc
  , cryptonote::core_rpc_server* rpc_server
  )
  : m_parser(ip, port, login, is_rpc, rpc_server)
  , m_command_lookup()
  , m_is_rpc(is_rpc)
{
  m_command_lookup.set_handler(
      "q"
    , [] (const std::vector<std::string>& args) {return true;}
    , "ignored"
    );
  m_command_lookup.set_handler(
      "help"
    , std::bind(&t_command_server::help, this, p::_1)
    , "Show this help"
    );
  m_command_lookup.set_handler(
      "print_height"
    , std::bind(&t_command_parser_executor::print_height, &m_parser, p::_1)
    , "Print local blockchain height"
    );
  m_command_lookup.set_handler(
      "print_pl"
    , std::bind(&t_command_parser_executor::print_peer_list, &m_parser, p::_1)
    , "Print peer list"
    );
  m_command_lookup.set_handler(
      "print_pl_stats"
    , std::bind(&t_command_parser_executor::print_peer_list_stats, &m_parser, p::_1)
    , "Print peer list stats"
    );
  m_command_lookup.set_handler(
      "print_cn"
    , std::bind(&t_command_parser_executor::print_connections, &m_parser, p::_1)
    , "Print connections"
    );
  m_command_lookup.set_handler(
      "print_bc"
    , std::bind(&t_command_parser_executor::print_blockchain_info, &m_parser, p::_1)
    , "Print blockchain info in a given blocks range, print_bc <begin_height> [<end_height>]"
    );
  m_command_lookup.set_handler(
      "print_block"
    , std::bind(&t_command_parser_executor::print_block, &m_parser, p::_1)
    , "Print block, print_block <block_hash> | <block_height>"
    );
  m_command_lookup.set_handler(
      "print_tx"
    , std::bind(&t_command_parser_executor::print_transaction, &m_parser, p::_1)
    , "Print transaction, print_tx <transaction_hash>"
    );
  m_command_lookup.set_handler(
      "is_key_image_spent"
    , std::bind(&t_command_parser_executor::is_key_image_spent, &m_parser, p::_1)
    , "Prints whether a given key image is in the spent key images set, is_key_image_spent <key_image>"
    );
  m_command_lookup.set_handler(
      "start_mining"
    , std::bind(&t_command_parser_executor::start_mining, &m_parser, p::_1)
    , "Start mining for specified address, start_mining <addr> [<threads>] [do_background_mining] [ignore_battery], default 1 thread, no background mining"
    );
  m_command_lookup.set_handler(
      "stop_mining"
    , std::bind(&t_command_parser_executor::stop_mining, &m_parser, p::_1)
    , "Stop mining"
    );
  m_command_lookup.set_handler(
      "print_pool"
    , std::bind(&t_command_parser_executor::print_transaction_pool_long, &m_parser, p::_1)
    , "Print transaction pool (long format)"
    );
  m_command_lookup.set_handler(
      "print_pool_sh"
    , std::bind(&t_command_parser_executor::print_transaction_pool_short, &m_parser, p::_1)
    , "Print transaction pool (short format)"
    );
  m_command_lookup.set_handler(
      "print_pool_stats"
    , std::bind(&t_command_parser_executor::print_transaction_pool_stats, &m_parser, p::_1)
    , "Print transaction pool statistics"
    );
  m_command_lookup.set_handler(
      "show_hr"
    , std::bind(&t_command_parser_executor::show_hash_rate, &m_parser, p::_1)
    , "Start showing hash rate"
    );
  m_command_lookup.set_handler(
      "hide_hr"
    , std::bind(&t_command_parser_executor::hide_hash_rate, &m_parser, p::_1)
    , "Stop showing hash rate"
    );
  m_command_lookup.set_handler(
      "save"
    , std::bind(&t_command_parser_executor::save_blockchain, &m_parser, p::_1)
    , "Save blockchain"
    );
  m_command_lookup.set_handler(
      "set_log"
    , std::bind(&t_command_parser_executor::set_log_level, &m_parser, p::_1)
    , "set_log <level>|<categories> - Change current loglevel, <level> is a number 0-4"
    );
  m_command_lookup.set_handler(
      "diff"
    , std::bind(&t_command_parser_executor::show_difficulty, &m_parser, p::_1)
    , "Show difficulty"
    );
  m_command_lookup.set_handler(
      "status"
    , std::bind(&t_command_parser_executor::show_status, &m_parser, p::_1)
    , "Show status"
    );
  m_command_lookup.set_handler(
      "stop_daemon"
    , std::bind(&t_command_parser_executor::stop_daemon, &m_parser, p::_1)
    , "Stop the daemon"
    );
  m_command_lookup.set_handler(
      "exit"
    , std::bind(&t_command_parser_executor::stop_daemon, &m_parser, p::_1)
    , "Stop the daemon"
    );
  m_command_lookup.set_handler(
      "print_status"
    , std::bind(&t_command_parser_executor::print_status, &m_parser, p::_1)
    , "Prints daemon status"
    );
  m_command_lookup.set_handler(
      "limit"
    , std::bind(&t_command_parser_executor::set_limit, &m_parser, p::_1)
    , "limit <kB/s> - Set download and upload limit"
    );
  m_command_lookup.set_handler(
      "limit_up"
    , std::bind(&t_command_parser_executor::set_limit_up, &m_parser, p::_1)
    , "limit <kB/s> - Set upload limit"
    );
  m_command_lookup.set_handler(
      "limit_down"
    , std::bind(&t_command_parser_executor::set_limit_down, &m_parser, p::_1)
    , "limit <kB/s> - Set download limit"
    );
    m_command_lookup.set_handler(
      "out_peers"
    , std::bind(&t_command_parser_executor::out_peers, &m_parser, p::_1)
    , "Set max number of out peers"
    );
    m_command_lookup.set_handler(
      "start_save_graph"
    , std::bind(&t_command_parser_executor::start_save_graph, &m_parser, p::_1)
    , "Start save data for dr monero"
    );
    m_command_lookup.set_handler(
      "stop_save_graph"
    , std::bind(&t_command_parser_executor::stop_save_graph, &m_parser, p::_1)
    , "Stop save data for dr monero"
    );
    m_command_lookup.set_handler(
      "hard_fork_info"
    , std::bind(&t_command_parser_executor::hard_fork_info, &m_parser, p::_1)
    , "Print hard fork voting information"
    );
    m_command_lookup.set_handler(
      "bans"
    , std::bind(&t_command_parser_executor::show_bans, &m_parser, p::_1)
    , "Show the currently banned IPs"
    );
    m_command_lookup.set_handler(
      "ban"
    , std::bind(&t_command_parser_executor::ban, &m_parser, p::_1)
    , "Ban a given IP for a time"
    );
    m_command_lookup.set_handler(
      "unban"
    , std::bind(&t_command_parser_executor::unban, &m_parser, p::_1)
    , "Unban a given IP"
    );
    m_command_lookup.set_handler(
      "flush_txpool"
    , std::bind(&t_command_parser_executor::flush_txpool, &m_parser, p::_1)
    , "Flush a transaction from the tx pool by its txid, or the whole tx pool"
    );
    m_command_lookup.set_handler(
      "output_histogram"
    , std::bind(&t_command_parser_executor::output_histogram, &m_parser, p::_1)
    , "Print output histogram (amount, instances)"
    );
    m_command_lookup.set_handler(
      "print_coinbase_tx_sum"
    , std::bind(&t_command_parser_executor::print_coinbase_tx_sum, &m_parser, p::_1)
    , "Print sum of coinbase transactions <start height> [block count]"
    );
    m_command_lookup.set_handler(
      "alt_chain_info"
    , std::bind(&t_command_parser_executor::alt_chain_info, &m_parser, p::_1)
    , "Print information about alternative chains"
    );
    m_command_lookup.set_handler(
      "bc_dyn_stats"
    , std::bind(&t_command_parser_executor::print_blockchain_dynamic_stats, &m_parser, p::_1)
    , "Print information about current blockchain dynamic state, bc_dyn_stats <last n blocks>"
    );
    m_command_lookup.set_handler(
      "update"
    , std::bind(&t_command_parser_executor::update, &m_parser, p::_1)
    , "subcommands: check (check if an update is available), download (download it if there is), update (not implemented)"
    );
    m_command_lookup.set_handler(
      "relay_tx"
    , std::bind(&t_command_parser_executor::relay_tx, &m_parser, p::_1)
    , "Relay a given transaction by its txid"
    );
    m_command_lookup.set_handler(
      "sync_info"
    , std::bind(&t_command_parser_executor::sync_info, &m_parser, p::_1)
    , "Print information about blockchain sync state"
    );
}

bool t_command_server::process_command_str(const std::string& cmd)
{
  return m_command_lookup.process_command_str(cmd);
}

bool t_command_server::process_command_vec(const std::vector<std::string>& cmd)
{
  bool result = m_command_lookup.process_command_vec(cmd);
  if (!result)
  {
    help(std::vector<std::string>());
  }
  return result;
}

bool t_command_server::start_handling(std::function<void(void)> exit_handler)
{
  if (m_is_rpc) return false;

  m_command_lookup.start_handling("", get_commands_str(), exit_handler);

  return true;
}

void t_command_server::stop_handling()
{
  if (m_is_rpc) return;

  m_command_lookup.stop_handling();
}

bool t_command_server::help(const std::vector<std::string>& args)
{
  std::cout << get_commands_str() << std::endl;
  return true;
}

std::string t_command_server::get_commands_str()
{
  std::stringstream ss;
  ss << "Monero '" << MONERO_RELEASE_NAME << "' (v" << MONERO_VERSION_FULL << ")" << std::endl;
  ss << "Commands: " << std::endl;
  std::string usage = m_command_lookup.get_usage();
  boost::replace_all(usage, "\n", "\n  ");
  usage.insert(0, "  ");
  ss << usage << std::endl;
  return ss.str();
}

} // namespace daemonize