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#pragma once

#include <boost/endian/buffers.hpp>
#include <cstdint>
#include <vector>

#include "crypto/hash.h" // monero/src
#include "db/fwd.h"
#include "wire/msgpack/fwd.h"

namespace lws { namespace rpc { namespace scanner
{
  /* 
  `monero-lws-daemon` is "server" and `monero-lws-scanner` is "client".
  */

  //! \brief Data sent before msgpack payload
  struct header
  {
    using length_type = boost::endian::little_uint32_buf_t;
    header() = delete;
    std::uint8_t version;
    std::uint8_t id;
    length_type length;
  };
  static_assert(sizeof(header) == 6);


  /*
   Client to server messages.
  */

  //! \brief Inform server of info needed to spawn work to client.
  struct initialize
  {
    initialize() = delete;
    static constexpr std::uint8_t id() noexcept { return 0; }
    std::string pass;
    std::uint32_t threads;
  };
  WIRE_MSGPACK_DECLARE_OBJECT(initialize);

  //! Command that updates database account records
  struct update_accounts
  {
    update_accounts() = delete;
    static constexpr std::uint8_t id() noexcept { return 1; }
    std::vector<lws::account> users;
    std::vector<crypto::hash> blocks;
  };
  WIRE_MSGPACK_DECLARE_OBJECT(update_accounts); 


  /*
   Server to client messages.
  */
 
  //! \brief New accounts to add/push to scanning list
  struct push_accounts
  {
    push_accounts() = delete;
    static constexpr std::uint8_t id() noexcept { return 0; }
    std::vector<lws::account> users;
  };
  WIRE_MSGPACK_DECLARE_OBJECT(push_accounts);

  //! \brief Replace account scanning list with this new one
  struct replace_accounts
  {
    replace_accounts() = delete;
    static constexpr const std::uint8_t id() noexcept { return 1; }
    std::vector<lws::account> users;
  };
  WIRE_MSGPACK_DECLARE_OBJECT(replace_accounts);
}}} // lws // rpc // scanner