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#include "lws_pub.h"

#include <boost/range/adaptor/transformed.hpp>
#include "db/account.h"
#include "rpc/client.h"
#include "rpc/webhook.h"
#include "wire/adapted/crypto.h"
#include "wire/wrapper/array.h"
#include "wire/wrappers_impl.h"
#include "wire/write.h"

namespace
{
  constexpr const char json_topic[] = "json-minimal-scanned:";
  constexpr const char msgpack_topic[] = "msgpack-minimal-scanned:";

  struct get_address
  {
    std::reference_wrapper<const lws::account> user;
  };

  void write_bytes(wire::writer& dest, const get_address& self)
  {
    wire_write::bytes(dest, self.user.get().address());
  }

  struct minimal_scanned
  {
    std::reference_wrapper<const crypto::hash> id;
    const lws::db::block_id height;
    epee::span<const lws::account> users;
  };

  void write_bytes(wire::writer& dest, const minimal_scanned& self)
  {
    const auto just_address = [] (const lws::account& user)
    {
      return get_address{std::cref(user)};
    };

    wire::object(dest,
      WIRE_FIELD_ID(0, height),
      WIRE_FIELD_ID(1, id),
      wire::field<2>("addresses", wire::array(self.users | boost::adaptors::transformed(just_address)))
    );
  }
} // anonymous

namespace lws { namespace rpc
{
  void publish_scanned(rpc::client& client, const crypto::hash& id, epee::span<const account> users)
  {
    if (users.empty())
      return;

    const minimal_scanned output{
      std::cref(id), users[0].scan_height(), users
    };
    const epee::span<const minimal_scanned> event{std::addressof(output), 1};
    zmq_send(client, event, json_topic, msgpack_topic);
  }
}} // lws // rpc